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Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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1

Coke from coal and petroleum  

DOE Patents (OSTI)

A carbonaceous coke is manufactured by the delayed coking of a slurry mixture of from about 10 to about 30 weight percent of caking or non-caking coal and the remainder a petroleum resid blended at below 50.degree. C.

Wynne, Jr., Francis E. (Allison Park, PA); Lopez, Jaime (Pittsburgh, PA); Zaborowsky, Edward J. (Harwick, PA)

1981-01-01T23:59:59.000Z

2

Influence of coal on coke properties and blast-furnace operation  

SciTech Connect

With unstable coal supplies and properties and a fluctuating content of coking coal in the batch at OAO Zapadno-Sibirskii Metallurgicheskii Kombinat (ZSMK) and of bituminous coal at Kuznetskaya enrichment facility, it is important to optimize the rank composition of the batch for coke production.

G.R. Gainieva; L.D. Nikitin [OAO Zapadno-Sibirskii Metallurgicheskii Kombinat (Russian Federation)

2007-07-01T23:59:59.000Z

3

Low-rank coal research  

DOE Green Energy (OSTI)

This work is a compilation of reports on ongoing research at the University of North Dakota. Topics include: Control Technology and Coal Preparation Research (SO{sub x}/NO{sub x} control, waste management), Advanced Research and Technology Development (turbine combustion phenomena, combustion inorganic transformation, coal/char reactivity, liquefaction reactivity of low-rank coals, gasification ash and slag characterization, fine particulate emissions), Combustion Research (fluidized bed combustion, beneficiation of low-rank coals, combustion characterization of low-rank coal fuels, diesel utilization of low-rank coals), Liquefaction Research (low-rank coal direct liquefaction), and Gasification Research (hydrogen production from low-rank coals, advanced wastewater treatment, mild gasification, color and residual COD removal from Synfuel wastewaters, Great Plains Gasification Plant, gasifier optimization).

Not Available

1989-01-01T23:59:59.000Z

4

Mozambique becomes a major coking coal exporter?  

SciTech Connect

In addition to its potential role as a major international supplier of coking coal, Mozambique will also become a major source of power generation for southern Africa. 3 figs.

Ruffini, A.

2008-06-15T23:59:59.000Z

5

Low Rank Coal Optimization  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Rank Coal Optimization Low Rank Coal Optimization NETL Office of Research and Development Project Number: FWP-2012.03.03 Task 4 Project Description NETL's in-house research team is using an integrated approach to combine theory, computational modeling, experiment, and industrial input to develop physics-based methods, models, and tools to support the development and deployment of advanced gasification based devices and systems. The activities in this effort include developing and applying computational and modeling tools to simulate complex flows in applications such as transport or entrained flow gasifiers. TRIG Model Development - The primary objective of this work is to develop a hierarchy of models for numerical simulations of TRIG co-feed conditions that span fast running reduced order models (ROM's) to high fidelity multiphase computational fluid dynamics (CFD) models. Each model will have uncertainty quantification associated with its predictions to allow a user to choose a model based on the trade-offs between computational speed and uncertainty in the predictions.

6

Low-rank coal oil agglomeration  

DOE Patents (OSTI)

A low-rank coal oil agglomeration process. High mineral content, a high ash content subbituminous coals are effectively agglomerated with a bridging oil which is partially water soluble and capable of entering the pore structure, and usually coal derived.

Knudson, Curtis L. (Grand Forks, ND); Timpe, Ronald C. (Grand Forks, ND)

1991-01-01T23:59:59.000Z

7

Table 38. Coal Stocks at Coke Plants by Census Division  

U.S. Energy Information Administration (EIA) Indexed Site

Coal Stocks at Coke Plants by Census Division Coal Stocks at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 38. Coal Stocks at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Census Division June 30, 2013 March 31, 2013 June 30, 2012 Percent Change (June 30) 2013 versus 2012 Middle Atlantic w w w w East North Central 1,313 1,177 1,326 -1.0 South Atlantic w w w w East South Central w w w w U.S. Total 2,500 2,207 2,295 8.9 w = Data withheld to avoid disclosure. Note: Total may not equal sum of components because of independent rounding. Source: U.S. Energy Information Administration (EIA), Form EIA-5, 'Quarterly Coal Consumption and Quality Report - Coke Plants.'

8

Effects of HyperCoal addition on coke strength and thermoplasticity of coal blends  

SciTech Connect

Ashless coal, also known as HyperCoal (HPC), was produced by thermal extraction of three coals of different ranks (Gregory caking coal, Warkworth steam coal, and Pasir subbituminous coal) with 1-methylnaphthalene (1-MN) at 360, 380, and 400{sup o}C. The effects of blending these HPCs into standard coal blends were investigated. Blending HPCs as 5-10% of a standard blend (Kouryusho:Goonyella:K9) enhanced the thermoplasticity over a wide temperature range. For blends made with the Pasir-HPC, produced from a noncaking coal, increasing the extraction temperature from 360 to 400{sup o}C increased the thermoplasticity significantly. Blends containing Warkworth-HPC, produced from a slightly caking coal, had a higher tensile strength than the standard blend in semicoke strength tests. The addition of 10% Pasir-HPC, extracted at 400{sup o}C, increased the tensile strength of the semicokes to the same degree as those made with Gregory-HPC. Furthermore, all HPC blends had a higher tensile strength and smaller weight loss during carbonization. These results suggest that the HPC became integrated into the coke matrix, interacting strongly with the other raw coals. 14 refs., 11 figs., 1 tab.

Toshimasa Takanohashi; Takahiro Shishido; Ikuo Saito [National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan). Energy Technology Research Institute

2008-05-15T23:59:59.000Z

9

Process for converting coal into liquid fuel and metallurgical coke  

DOE Patents (OSTI)

A method of recovering coal liquids and producing metallurgical coke utilizes low ash, low sulfur coal as a parent for a coal char formed by pyrolysis with a volatile content of less than 8%. The char is briquetted and heated in an inert gas over a prescribed heat history to yield a high strength briquette with less than 2% volatile content.

Wolfe, Richard A. (Abingdon, VA); Im, Chang J. (Abingdon, VA); Wright, Robert E. (Bristol, TN)

1994-01-01T23:59:59.000Z

10

Anaerobic bioprocessing of low-rank coals  

SciTech Connect

The overall goal of this project is to find biological methods to remove carboxylic functionalities from low-rank coals and to assess the properties of the modified coal towards coal liquefaction. The main objectives for this quarter were: (1) continuation of microbial consortia development and maintenance, (2) crude enzyme study using best decarboxylating organisms, (3) decarboxylation of lignite, demineralized Wyodak coal and model polymers, and (4) characterization of biotreated coals.

Jain, M.K.; Narayan, R.; Han, O.

1992-04-15T23:59:59.000Z

11

Advanced CO2 Capture Technology for Low Rank Coal Integrated Gasification Combined Cycle (IGCC) Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

CO CO 2 Capture Technology for Low Rank Coal Integrated Gasification Combined Cycle (IGCC) Systems Background Gasification of coal or other solid feedstocks (wood waste, petroleum coke, etc.) is a clean way to produce electricity and produce or co-produce a variety of commercial products. The major challenge is cost reduction; current integrated gasification combined cycle (IGCC) technology is estimated to produce power at a cost higher than that of pulverized coal combustion. However, the Gasification

12

Prediction of metallurgical coke strength from the petrographic composition of coal blends  

Science Conference Proceedings (OSTI)

Turkey, especially Zonguldak on the West Coast of Black Sea region, has large reserves of bituminous coal that can be used either directly or in blends with other coals for metallurgical coke production. It is possible to predict the coking properties of these coals by petrographic analysis. In this study, semi- and non-coking coals were blended with coking bituminous coals in varying proportions and an estimation was made as to their stability factors through petrographic techniques. It was established that semi- and non-coking bituminous coals could be used in the production of metallurgical coke.

Sutcu, H.; Toroglu, I.; Piskin, S. [Zonguldak Karaelmas University, Zonguldak (Turkey)

2009-07-01T23:59:59.000Z

13

Low-rank coal oil agglomeration  

DOE Patents (OSTI)

A low-rank coal oil agglomeration process is described. High mineral content, a high ash content subbituminous coals are effectively agglomerated with a bridging oil which is partially water soluble and capable of entering the pore structure, and is usually coal-derived.

Knudson, C.L.; Timpe, R.C.

1991-07-16T23:59:59.000Z

14

NETL: Gasification Systems - Low Rank Coal Optimization  

NLE Websites -- All DOE Office Websites (Extended Search)

Area Low Rank Coal Optimization Project No.: Adv Gas-FY131415 Task 4 NETL's in-house research team is using an integrated approach to combine theory, computational modeling,...

15

Effect of weathering on coal characteristics and coke qualities.  

E-Print Network (OSTI)

??The effect of weathering on the modification of chemical, petrological and rheological properties of four metallurgical coals in different rank and geology was investigated. And… (more)

Lee, Seung Jae

2012-01-01T23:59:59.000Z

16

Table 33. Coal Carbonized at Coke Plants by Census Division  

U.S. Energy Information Administration (EIA) Indexed Site

Coal Carbonized at Coke Plants by Census Division Coal Carbonized at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 33. Coal Carbonized at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Census Division April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change Middle Atlantic w w w w w w East North Central 3,051 2,997 3,092 6,048 6,156 -1.8 South Atlantic w w w w w w East South Central w w w w w w U.S. Total 5,471 5,280 5,296 10,751 10,579 1.6 w = Data withheld to avoid disclosure. Note: Total may not equal sum of components because of independent rounding. Source: U.S. Energy Information Administration (EIA), Form EIA-5, 'Quarterly Coal Consumption and Quality Report - Coke Plants

17

Anaerobic processing of low-rank coals  

SciTech Connect

The overall goal of this project is to find biological methods to remove carboxylic functionalities from low-rank coals and to assess the properties of the modified coal towards coal liquefaction. The main objectives for this quarter were: (i) continuation of microbial consortia maintenance and completion of coal decarboxylation using batch reactor system, (ii) decarboxylation of model polymer, (iii) characterization of biotreated coals, and (iv) microautoclave liquefaction of the botreated coal. Progress is reported on the thermogravimetric analysis of coal biotreated in the absence of methanogens and under 5% hydrogen gas exhibits increased volatile carbon to fixed carbon ratio; that the microbial consortia developed on coal are being adapted to two different model polymers containing free carboxylic groups to examine decarboxylation ability of consortium; completion of experiments to decarboxylate two model polymers, polyacrylic acid and polymethyl methacrylate, have been completed; that the biotreated coal showed increase in THF-solubles.

Jain, M.K.; Narayan, R.; Han, O.

1992-01-01T23:59:59.000Z

18

The Iron Age & Coal-based Coke: A Neglected Case of Fossil-fuel Dependence  

E-Print Network (OSTI)

The Iron Age & Coal-based Coke: A Neglected Case of Fossil-fuel Dependence by Vaclav Smil September share of their primary energies from renewable sources. Steel & Coal-Derived Coke Here is another important: steel's fundamental dependence on coal-derived coke with no practical substitutes on any rational

Smil, Vaclav

19

Pyrolysis behavior of coal and petroleum coke at high temperature and high pressure.  

E-Print Network (OSTI)

??While pyrolysis of coal is a well-studied thermal process, little is known about pressurized pyrolysis of coal and petroleum coke. This study aims to interpret… (more)

Wagner, David Ray

2011-01-01T23:59:59.000Z

20

Table 23. Coal Receipts at Coke Plants by Census Division  

U.S. Energy Information Administration (EIA) Indexed Site

Receipts at Coke Plants by Census Division Receipts at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 23. Coal Receipts at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Census Division April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change Middle Atlantic w w w w w w East North Central 3,189 2,679 3,225 5,867 5,993 -2.1 South Atlantic w w w w w w East South Central w w w w w w U.S. Total 5,770 4,962 5,370 10,732 10,440 2.8 w = Data withheld to avoid disclosure. Note: Total may not equal sum of components because of independent rounding. Source: U.S. Energy Information Administration (EIA), Form EIA-5, 'Quarterly Coal Consumption and Quality Report - Coke Plants

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Coke quality for blast furnaces with coal-dust fuel  

SciTech Connect

Recently, plans have been developed for the introduction of pulverized coal injection (PCI) at various Russian metallurgical enterprises. The main incentive for switching to PCI is the recent price rises for Russian natural gas. The paper discusses the quality of coke for PCI into blast furnaces.

Y.A. Zolotukhin; N.S. Andreichikov [Eastern Coal-Chemistry Institute, Yekaterinburg (Russian Federation)

2009-07-01T23:59:59.000Z

22

Anaerobic bioprocessing of low rank coals  

SciTech Connect

The overall goal of this project is to find biological methods to remove carboxylic functionalities from low rank coals under ambient conditions and to assess the properties of these modified coals towards coal liquefaction. The main objectives for this quarter were: (1) enrichment of anaerobic microbial consortia in a coal fed chemostat, (2) characterization of biocoal products and examination of liquefaction potential, (3) isolation of decarboxylating organisms and evaluation of the isolated organisms for decarboxylation. The project began on September 12, 1990. 3 figs., 7 tabs.

Jain, M.K.; Narayan, R.; Han, O.

1991-01-01T23:59:59.000Z

23

Annual book of ASTM Standards 2008. Section Five. Petroleum products, lubricants, and fossil fuels. Volume 05.06. Gaseous fuels; coal and coke  

SciTech Connect

The first part covers standards for gaseous fuels. The second part covers standards on coal and coke including the classification of coals, determination of major elements in coal ash and trace elements in coal, metallurgical properties of coal and coke, methods of analysis of coal and coke, petrogrpahic analysis of coal and coke, physical characteristics of coal, quality assurance and sampling.

NONE

2008-09-15T23:59:59.000Z

24

Chemical comminution and deashing of low-rank coals  

DOE Patents (OSTI)

A method of chemically comminuting a low-rank coal while at the same time increasing the heating value of the coal. A strong alkali solution is added to a low-rank coal to solubilize the carbonaceous portion of the coal, leaving behind the noncarbonaceous mineral matter portion. The solubilized coal is precipitated from solution by a multivalent cation, preferably calcium.

Quigley, David R. (Idaho Falls, ID)

1992-01-01T23:59:59.000Z

25

Co-gasification of biomass with coal and oil sands coke in a drop tube furnace.  

E-Print Network (OSTI)

??Chars were obtained from individual fuels and blends with different blend ratios of coal, coke and biomass in Drop Tube Furnace at different temperatures. Based… (more)

Gao, Chen

2010-01-01T23:59:59.000Z

26

The effect of diabietic acid on the coking of oxidised solvent-extracted coal.  

E-Print Network (OSTI)

??Refcoal is a refined carbon source obtained by extraction of coal with dimethylformamide (DMF). During the coking process, Refcoal goes through a mesophase (fluid) stage… (more)

Ludere, Margaret Tshimangadzo

2008-01-01T23:59:59.000Z

27

Factors affecting quality of dried low-rank coals  

SciTech Connect

The chemical and physical properties of coal are strongly affected by the upgrading process employed. For high-moisture coals, upgrading involves thermal dehydration to improve the calorific value of the coal on mass basis. This study evaluates the feasibility of upgrading a low-rank/grade coal using the oven drying method. The objective of this research work is to study the drying characteristics of low-rank coals and to understand the factors affecting the quality of dried low-rank coals. This article describes laboratory experiments conducted on the characterization of the low-rank coals before and after the drying process. The results on drying kinetics, re-absorption of coal samples, and proximate analysis of coal samples before and after drying are discussed. It was found that the upgrading process produced coal with better heating value and combustion characteristics than those of the raw coal samples.

Karthikeyan, M.; Kuma, J.V.M.; Hoe, C.S.; Ngo, D.L.Y. [National University of Singapore, (Singapore)

2007-07-01T23:59:59.000Z

28

Chemical comminution and deashing of low-rank coals  

DOE Patents (OSTI)

A method is described of chemically comminuting a low-rank coal while at the same time increasing the heating value of the coal. A strong alkali solution is added to a low-rank coal to solubilize the carbonaceous portion of the coal, leaving behind the noncarbonaceous mineral matter portion. The solubilized coal is precipitated from solution by a multivalent cation, preferably calcium. 4 figs., 3 tabs.

Quigley, D.R.

1989-09-26T23:59:59.000Z

29

Research on Improving Low Rank Coal Caking Ability by Hydrogenation  

Science Conference Proceedings (OSTI)

The experiment of improving low rank coal caking ability was carried out in an autoclave within a temperature of (623 to 673)K and a initial pressure of (3 to 6) MPa, the heat time range is 30-50min, the results indicated that: according to moderate ... Keywords: low rank coal, caking ability, maceral specification, coal blending

Huang Peng; Li Wenbo; Zhao Yuan; Ai Jun

2011-02-01T23:59:59.000Z

30

Stabilized thermally beneficiated low rank coal and method of ...  

A process for reducing the spontaneous combustion tendencies of thermally beneficiated low rank coals employing heat, air or an oxygen containing gas ...

31

Study on Further Treatment of Coal Coking Wastewater by Ultrasound Wave, Fenton's Reagent and Coagulation  

Science Conference Proceedings (OSTI)

The study on further treatment of coal coking wastewater by ultrasound wave, Fenton's reagent and coagulation was carried out in this paper at the first time, Furthermore, this paper discussed the optimum cooperative reaction condition of their combined ... Keywords: ultrasound wave, coke plant wastewater, Fenton reagent, coagulation

Jun Shi; Liangbo Zhang

2009-10-01T23:59:59.000Z

32

CO2 Sequestration Potential of Texas Low-Rank Coals  

NLE Websites -- All DOE Office Websites (Extended Search)

Co Co 2 SequeStration Potential of texaS low-rank CoalS Background Fossil fuel combustion is the primary source of emissions of carbon dioxide (CO 2 ), a major greenhouse gas. Sequestration of CO 2 by injecting it into geologic formations, such as coal seams, may offer a viable method for reducing atmospheric CO 2 emissions. Injection into coal seams has the potential added benefit of enhanced coalbed methane recovery. The potential for CO 2 sequestration in low-rank coals, while as yet undetermined, is believed to differ significantly from that for bituminous coals. To evaluate the feasibility and the environmental, technical, and economic impacts of CO 2 sequestration in Texas low-rank coal beds, the Texas Engineering Experimental Station is conducting a four-year study

33

CHARACTERIZATION OF COAL- AND PETROLEUM-DERIVED BINDER PITCHES AND THE INTERACTION OF PITCH/COKE MIXTURES IN PRE-BAKED CARBON ANODES.  

E-Print Network (OSTI)

??Carbon anodes are manufactured from calcined petroleum coke (i.e. sponge coke) and recycled anode butts as fillers, and coal tar pitch (SCTP) as the binder.… (more)

Suriyapraphadilok, Uthaiporn

2008-01-01T23:59:59.000Z

34

Guide to ASTM test methods for the analysis of coal and coke  

Science Conference Proceedings (OSTI)

The guide includes brief descriptions of all 56 ASTM test methods that cover the physical, chemical, and spectroscopic analytical techniques to qualitatively and quantitatively identify over 40 chemical and physical properties of coal, coke, their products, and by-products.

R.A. Kishore Nadkarni (ed.)

2008-07-01T23:59:59.000Z

35

Use of Coal Tar Pitch Coke for Producing Prebaked Electrodes  

Science Conference Proceedings (OSTI)

The study was conducted in order to (1) find an alternative material to petroleum coke due to its high cost and deteriorating properties, and (2) determine the ...

36

Coal flow aids reduce coke plant operating costs and improve production rates  

Science Conference Proceedings (OSTI)

Chemical coal flow aids can provide many benefits to coke plants, including improved production rates, reduced maintenance and lower cleaning costs. This article discusses the mechanisms by which coal flow aids function and analyzes several successful case histories. 2 refs., 10 figs., 1 tab.

Bedard, R.A.; Bradacs, D.J.; Kluck, R.W.; Roe, D.C.; Ventresca, B.P.

2005-06-01T23:59:59.000Z

37

Evaluation of fly ash from co-combustion of coal and petroleum coke for use in concrete  

Science Conference Proceedings (OSTI)

An investigation of fly ash (FA) produced from various blends of coal and petroleum coke (pet coke) fired at Belledune Generating Station, New Brunswick, Canada, was conducted to establish its performance relative to FA derived from coal-only combustion and its compliance with CSA A3000. The FA samples were beneficiated by an electrostatic separation process to produce samples for testing with a range of loss-on-ignition (LOI) values. The results of these studies indicate that the combustion of pet coke results in very little inorganic residue (for example, typically less than 0.5% ash) and the main impact on FA resulting from the co-combustion of coal and up to 25% pet coke is an increase in the unburned carbon content and LOI values. The testing of FA after beneficiation indicates that FA produced from fuels with up to 25% pet coke performs as good as FA produced from the same coal without pet coke.

Scott, A.N.; Thomas, M.D.A.

2007-01-15T23:59:59.000Z

38

Lignites and Low Rank Coals Conference: Proceedings 2001  

Science Conference Proceedings (OSTI)

EPRI and the Technische Vereinigung des Grosskraftswerkbetreiber (Technical Association of Large Power Plant Operators) (VGB) jointly held a Conference on Lignites and Low Rank Coals in Wiesbaden, Germany, May 16-18, 2001. These Proceedings include the plenary papers, technical session papers, and rapporteurs' summaries from the conference.

2002-03-25T23:59:59.000Z

39

Does EIA publish coking coal prices? - FAQ - U.S. Energy ...  

U.S. Energy Information Administration (EIA)

Search EIA.gov. A-Z Index; A-Z Index A B C D E F G H I J K L M N O P Q R S T U V W XYZ. Frequently Asked Questions. Does EIA publish coking coal ...

40

Low-Rank Coal Grinding Performance Versus Power Plant Performance  

SciTech Connect

The intent of this project was to demonstrate that Alaskan low-rank coal, which is high in volatile content, need not be ground as fine as bituminous coal (typically low in volatile content) for optimum combustion in power plants. The grind or particle size distribution (PSD), which is quantified by percentage of pulverized coal passing 74 microns (200 mesh), affects the pulverizer throughput in power plants. The finer the grind, the lower the throughput. For a power plant to maintain combustion levels, throughput needs to be high. The problem of particle size is compounded for Alaskan coal since it has a low Hardgrove grindability index (HGI); that is, it is difficult to grind. If the thesis of this project is demonstrated, then Alaskan coal need not be ground to the industry standard, thereby alleviating somewhat the low HGI issue (and, hopefully, furthering the salability of Alaskan coal). This project studied the relationship between PSD and power plant efficiency, emissions, and mill power consumption for low-rank high-volatile-content Alaskan coal. The emissions studied were CO, CO{sub 2}, NO{sub x}, SO{sub 2}, and Hg (only two tests). The tested PSD range was 42 to 81 percent passing 76 microns. Within the tested range, there was very little correlation between PSD and power plant efficiency, CO, NO{sub x}, and SO{sub 2}. Hg emissions were very low and, therefore, did not allow comparison between grind sizes. Mill power consumption was lower for coarser grinds.

Rajive Ganguli; Sukumar Bandopadhyay

2008-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

High Hydrogen, Low Methane Syngas from Low-Rank Coals for Coal-to-Liquids  

NLE Websites -- All DOE Office Websites (Extended Search)

High Hydrogen, Low Methane Syngas from Low-Rank Coals for Coal-to-Liquids Production High Hydrogen, Low Methane Syngas from Low-Rank Coals for Coal-to-Liquids Production Southern Research Institute (SRI) Project Number: FE0012054 Project Description The focus of the project will be to develop, test, and optimize steam-reforming catalysts for converting tars, C2+ hydrocarbons, NH3, and CH4 in high-temperature and sulfur environments, increasing the ratio of hydrogen in syngas, as part of a modified, advanced gasification platform for the conversion of low-rank coals to syngas for coal-to-liquid and integrated gasification combined cycle applications. Project Details Program Background and Project Benefits Project Scope and Technology Readiness Level Accomplishments Contacts, Duration, and Cost Project Images Abstract Performer website: Southern Research Institute

42

Characterization of liquids derived from laboratory coking of decant oil and co-coking of Pittsburgh seam bituminous coal with decant oil  

Science Conference Proceedings (OSTI)

In this study, decant oil and a blend of Pittsburgh seam bituminous coal with decant oil were subjected to coking and co-coking in a laboratory-scale delayed coker. Higher yields of coke and gas were obtained from co-coking than from coking. Coal addition into the feedstock resulted in lighter overhead liquid. GC/MS analyses of gasoline, jet fuel, and diesel show that co-coking of coal/decant oil gave higher quantity aromatic components than that of coking of decant oil alone. Simulated distillation gas chromatography analyses of overhead liquids and GC/MS analyses of vacuum fractions show that when coal was reacted with a decant oil, the coal constituents contributed to the distillable liquids. To address the reproducibility of the liquid products, overhead liquid samples collected at the first, third, and fifth hours of experiments of 6 h duration were evaluated using simulated distillation gas chromatography and {sup 1}H and {sup 13}C NMR. NMR analyses of the liquid products showed that, even though there were slight changes in the {sup 1}H and {sup 13}C spectra, the standard deviation was low for the time-dependent samples. Simulated distillation gas chromatography showed that the yields of refinery boiling range materials (i.e., gasoline, jet fuel, diesel, and fuel oil cuts) were reproducible between runs. Fractionation of the overhead liquids into refinery boiling range materials (gasoline, jet fuel, diesel, fuel oil fractions) showed that the boiling range materials and chemical compositions of fractions were found to be reproducible. 54 refs., 17 tabs.

Omer Gul; Caroline Clifford; Leslie R. Rudnick; Harold H. Schobert [Pennsylvania State University, University Park, PA (United States)

2009-05-15T23:59:59.000Z

43

Liquefaction of calcium-containing subbituminous coals and coals of lower rank  

DOE Patents (OSTI)

An improved process for the treatment of a calcium-containing subbituminous coal and coals of lower rank to form insoluble, thermally stable calcium salts which remain within the solids portions of the residue on liquefaction of the coal, thereby suppressing the formation of scale, made up largely of calcium carbonate which normally forms within the coal liquefaction reactor (i.e., coal liquefaction zone), e.g., on reactor surfaces, lines, auxiliary equipment and the like. An oxide of sulfur, in liquid phase, is contacted with a coal feed sufficient to impregnate the pores of the coal. The impregnated coal, in particulate form, can thereafter be liquefied in a coal liquefaction reactor (reaction zone) at coal liquefaction conditions without significant formation of scale.

Brunson, Roy J. (Baytown, TX)

1979-01-01T23:59:59.000Z

44

Low-rank coal research: Volume 3, Combustion research: Final report. [Great Plains  

DOE Green Energy (OSTI)

Volume III, Combustion Research, contains articles on fluidized bed combustion, advanced processes for low-rank coal slurry production, low-rank coal slurry combustion, heat engine utilization of low-rank coals, and Great Plains Gasification Plant. These articles have been entered individually into EDB and ERA. (LTN)

Mann, M. D.; Hajicek, D. R.; Zobeck, B. J.; Kalmanovitch, D. P.; Potas, T. A.; Maas, D. J.; Malterer, T. J.; DeWall, R. A.; Miller, B. G.; Johnson, M. D.

1987-04-01T23:59:59.000Z

45

Low-rank coal oil agglomeration product and process  

DOE Patents (OSTI)

A selectively-sized, raw, low-rank coal is processed to produce a low ash and relative water-free agglomerate with an enhanced heating value and a hardness sufficient to produce a non-degradable, shippable fuel. The low-rank coal is treated, under high shear conditions, in the first stage to cause ash reduction and subsequent surface modification which is necessary to facilitate agglomerate formation. In the second stage the treated low-rank coal is contacted with bridging and binding oils under low shear conditions to produce agglomerates of selected size. The bridging and binding oils may be coal or petroleum derived. The process incorporates a thermal deoiling step whereby the bridging oil may be completely or partially recovered from the agglomerate; whereas, partial recovery of the bridging oil functions to leave as an agglomerate binder, the heavy constituents of the bridging oil. The recovered oil is suitable for recycling to the agglomeration step or can serve as a value-added product.

Knudson, C.L.; Timpe, R.C.; Potas, T.A.; DeWall, R.A.; Musich, M.A.

1992-11-10T23:59:59.000Z

46

Low-rank coal oil agglomeration product and process  

DOE Patents (OSTI)

A selectively-sized, raw, low-rank coal is processed to produce a low ash and relative water-free agglomerate with an enhanced heating value and a hardness sufficient to produce a non-decrepitating, shippable fuel. The low-rank coal is treated, under high shear conditions, in the first stage to cause ash reduction and subsequent surface modification which is necessary to facilitate agglomerate formation. In the second stage the treated low-rank coal is contacted with bridging and binding oils under low shear conditions to produce agglomerates of selected size. The bridging and binding oils may be coal or petroleum derived. The process incorporates a thermal deoiling step whereby the bridging oil may be completely or partially recovered from the agglomerate; whereas, partial recovery of the bridging oil functions to leave as an agglomerate binder, the heavy constituents of the bridging oil. The recovered oil is suitable for recycling to the agglomeration step or can serve as a value-added product.

Knudson, Curtis L. (Grand Forks, ND); Timpe, Ronald C. (Grand Forks, ND); Potas, Todd A. (Plymouth, MN); DeWall, Raymond A. (Grand Forks, ND); Musich, Mark A. (Grand Forks, ND)

1992-01-01T23:59:59.000Z

47

CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS  

Science Conference Proceedings (OSTI)

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The main tasks for this reporting period were to correlate well logs and refine coal property maps, evaluate methane content and gas composition of Wilcox Group coals, and initiate discussions concerning collection of additional, essential data with Anadarko. To assess the volume of CO{sub 2} that may be sequestered and volume of methane that can be produced in the vicinity of the proposed Sam Seymour sequestration site, we used approximately 200 additional wells logs from Anadarko Petroleum Corp. to correlate and map coal properties of the 3 coal-bearing intervals of Wilcox group. Among the maps we are making are maps of the number of coal beds, number of coal beds greater than 5 ft thick, and cumulative coal thickness for each coal interval. This stratigraphic analysis validates the presence of abundant coal for CO{sub 2} sequestration in the Wilcox Group in the vicinity of Sam Seymour power plant. A typical wellbore in this region may penetrate 20 to 40 coal beds with cumulative coal thickness between 80 and 110 ft. Gas desorption analyses of approximately 75 coal samples from the 3 Wilcox coal intervals indicate that average methane content of Wilcox coals in this area ranges between 216 and 276 scf/t, basinward of the freshwater boundary indicated on a regional hydrologic map. Vitrinite reflectance data indicate that Wilcox coals are thermally immature for gas generation in this area. Minor amounts of biogenic gas may be present, basinward of the freshwater line, but we infer that most of the Wilcox coalbed gas in the deep coal beds is migrated thermogenic gas. Analysis based on limited data suggest that sites for CO{sub 2} sequestration and enhanced coalbed gas recovery should be located basinward of the Wilcox freshwater contour, where methane content is high and the freshwater aquifer can be avoided.

Duane A. McVay; Walter B. Ayers, Jr.; Jerry L. Jensen

2004-07-01T23:59:59.000Z

48

CO2 Sequestration Potential of Texas Low-Rank Coals  

SciTech Connect

Injection of CO{sub 2} in coalbeds is a plausible method of reducing atmospheric emissions of CO{sub 2}, and it can have the additional benefit of enhancing methane recovery from coal. Most previous studies have evaluated the merits of CO{sub 2} disposal in high-rank coals. The objective of this research was to determine the technical and economic feasibility of CO{sub 2} sequestration in, and enhanced coalbed methane (ECBM) recovery from, low-rank coals in the Texas Gulf Coast area. Our research included an extensive coal characterization program, including acquisition and analysis of coal core samples and well transient test data. We conducted deterministic and probabilistic reservoir simulation and economic studies to evaluate the effects of injectant fluid composition (pure CO{sub 2} and flue gas), well spacing, injection rate, and dewatering on CO{sub 2} sequestration and ECBM recovery in low-rank coals of the Calvert Bluff formation of the Texas Wilcox Group. Shallow and deep Calvert Bluff coals occur in two, distinct, coalbed gas petroleum systems that are separated by a transition zone. Calvert Bluff coals < 3,500 ft deep are part of a biogenic coalbed gas system. They have low gas content and are part of a freshwater aquifer. In contrast, Wilcox coals deeper than 3,500 ft are part of a thermogenic coalbed gas system. They have high gas content and are part of a saline aquifer. CO{sub 2} sequestration and ECBM projects in Calvert Bluff low-rank coals of East-Central Texas must be located in the deeper, unmineable coals, because shallow Wilcox coals are part of a protected freshwater aquifer. Probabilistic simulation of 100% CO{sub 2} injection into 20 feet of Calvert Bluff coal in an 80-acre 5-spot pattern indicates that these coals can store 1.27 to 2.25 Bcf of CO{sub 2} at depths of 6,200 ft, with an ECBM recovery of 0.48 to 0.85 Bcf. Simulation results of flue gas injection (87% N{sub 2}-13% CO{sub 2}) indicate that these same coals can store 0.34 to 0.59 Bcf of CO{sub 2} with an ECBM recovery of 0.68 to 1.20 Bcf. Economic modeling of CO{sub 2} sequestration and ECBM recovery indicates predominantly negative economic indicators for the reservoir depths (4,000 to 6,200 ft) and well spacings investigated, using natural gas prices ranging from $2 to $12 per Mscf and CO{sub 2} credits based on carbon market prices ranging from $0.05 to $1.58 per Mscf CO{sub 2} ($1.00 to $30.00 per ton CO{sub 2}). Injection of flue gas (87% N{sub 2} - 13% CO{sub 2}) results in better economic performance than injection of 100% CO{sub 2}. CO{sub 2} sequestration potential and methane resources in low-rank coals of the Lower Calvert Bluff formation in East-Central Texas are significant. The potential CO{sub 2} sequestration capacity of the coals ranges between 27.2 and 49.2 Tcf (1.57 and 2.69 billion tons), with a mean value of 38 Tcf (2.2 billion tons), assuming a 72.4% injection efficiency. Estimates of recoverable methane resources range between 6.3 and 13.6 Tcf, with a mean of 9.8 Tcf, assuming a 71.3% recovery factor. Moderate increases in gas prices and/or carbon credits could generate attractive economic conditions that, combined with the close proximity of many CO{sub 2} point sources near unmineable coalbeds, could enable commercial CO{sub 2} sequestration and ECBM projects in Texas low-rank coals. Additional studies are needed to characterize Wilcox regional methane coalbed gas systems and their boundaries, and to assess potential of other low-rank coal beds. Results from this study may be transferable to other low-rank coal formations and regions.

Duane McVay; Walter Ayers, Jr.; Jerry Jensen; Jorge Garduno; Gonzola Hernandez; Rasheed Bello; Rahila Ramazanova

2006-08-31T23:59:59.000Z

49

CO2 Sequestration Potential of Texas Low-Rank Coals  

Science Conference Proceedings (OSTI)

Injection of CO{sub 2} in coalbeds is a plausible method of reducing atmospheric emissions of CO{sub 2}, and it can have the additional benefit of enhancing methane recovery from coal. Most previous studies have evaluated the merits of CO{sub 2} disposal in high-rank coals. The objective of this research was to determine the technical and economic feasibility of CO{sub 2} sequestration in, and enhanced coalbed methane (ECBM) recovery from, low-rank coals in the Texas Gulf Coast area. Our research included an extensive coal characterization program, including acquisition and analysis of coal core samples and well transient test data. We conducted deterministic and probabilistic reservoir simulation and economic studies to evaluate the effects of injectant fluid composition (pure CO{sub 2} and flue gas), well spacing, injection rate, and dewatering on CO{sub 2} sequestration and ECBM recovery in low-rank coals of the Calvert Bluff formation of the Texas Wilcox Group. Shallow and deep Calvert Bluff coals occur in two, distinct, coalbed gas petroleum systems that are separated by a transition zone. Calvert Bluff coals coals deeper than 3,500 ft are part of a thermogenic coalbed gas system. They have high gas content and are part of a saline aquifer. CO{sub 2} sequestration and ECBM projects in Calvert Bluff low-rank coals of East-Central Texas must be located in the deeper, unmineable coals, because shallow Wilcox coals are part of a protected freshwater aquifer. Probabilistic simulation of 100% CO{sub 2} injection into 20 feet of Calvert Bluff coal in an 80-acre 5-spot pattern indicates that these coals can store 1.27 to 2.25 Bcf of CO{sub 2} at depths of 6,200 ft, with an ECBM recovery of 0.48 to 0.85 Bcf. Simulation results of flue gas injection (87% N{sub 2}-13% CO{sub 2}) indicate that these same coals can store 0.34 to 0.59 Bcf of CO{sub 2} with an ECBM recovery of 0.68 to 1.20 Bcf. Economic modeling of CO{sub 2} sequestration and ECBM recovery indicates predominantly negative economic indicators for the reservoir depths (4,000 to 6,200 ft) and well spacings investigated, using natural gas prices ranging from $2 to $12 per Mscf and CO{sub 2} credits based on carbon market prices ranging from $0.05 to $1.58 per Mscf CO{sub 2} ($1.00 to $30.00 per ton CO{sub 2}). Injection of flue gas (87% N{sub 2} - 13% CO{sub 2}) results in better economic performance than injection of 100% CO{sub 2}. CO{sub 2} sequestration potential and methane resources in low-rank coals of the Lower Calvert Bluff formation in East-Central Texas are significant. The potential CO{sub 2} sequestration capacity of the coals ranges between 27.2 and 49.2 Tcf (1.57 and 2.69 billion tons), with a mean value of 38 Tcf (2.2 billion tons), assuming a 72.4% injection efficiency. Estimates of recoverable methane resources range between 6.3 and 13.6 Tcf, with a mean of 9.8 Tcf, assuming a 71.3% recovery factor. Moderate increases in gas prices and/or carbon credits could generate attractive economic conditions that, combined with the close proximity of many CO{sub 2} point sources near unmineable coalbeds, could enable commercial CO{sub 2} sequestration and ECBM projects in Texas low-rank coals. Additional studies are needed to characterize Wilcox regional methane coalbed gas systems and their boundaries, and to assess potential of other low-rank coal beds. Results from this study may be transferable to other low-rank coal formations and regions.

Duane McVay; Walter Ayers, Jr.; Jerry Jensen; Jorge Garduno; Gonzola Hernandez; Rasheed Bello; Rahila Ramazanova

2006-08-31T23:59:59.000Z

50

Low-rank coal research. Quarterly report, January--March 1990  

SciTech Connect

This document contains several quarterly progress reports for low-rank coal research that was performed from January-March 1990. Reports in Control Technology and Coal Preparation Research are in Flue Gas Cleanup, Waste Management, and Regional Energy Policy Program for the Northern Great Plains. Reports in Advanced Research and Technology Development are presented in Turbine Combustion Phenomena, Combustion Inorganic Transformation (two sections), Liquefaction Reactivity of Low-Rank Coals, Gasification Ash and Slag Characterization, and Coal Science. Reports in Combustion Research cover Fluidized-Bed Combustion, Beneficiation of Low-Rank Coals, Combustion Characterization of Low-Rank Coal Fuels, Diesel Utilization of Low-Rank Coals, and Produce and Characterize HWD (hot-water drying) Fuels for Heat Engine Applications. Liquefaction Research is reported in Low-Rank Coal Direct Liquefaction. Gasification Research progress is discussed for Production of Hydrogen and By-Products from Coal and for Chemistry of Sulfur Removal in Mild Gas.

Not Available

1990-08-01T23:59:59.000Z

51

Petcoke and Low-Rank Coal/Lignite Supply Outlook for IGCC Evaluations  

Science Conference Proceedings (OSTI)

Petroleum coke, a by-product of petroleum refining, is used in many industries, with the highest-sulfur forms of petcoke disposed of as fuel for power generation. Because of its high heat content and low moisture, petcoke holds benefits in a fuel blend with lower grade fuels such as lignite for integrated coal gasification. This report reviews the characteristics of petroleum coke, presents its supply and demand outlook, and estimates the relative costs of various coals and petroleum coke at locations in...

2006-02-22T23:59:59.000Z

52

CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS  

Science Conference Proceedings (OSTI)

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The primary objectives for this reporting period were to construct a coal geological model for reservoir analysis and to continue modeling studies of CO{sub 2} sequestration performance in coalbed methane reservoirs under various operational conditions. Detailed correlation of coal zones is important for reservoir analysis and modeling. Therefore, we interpreted and created isopleth maps of coal occurrences, and correlated individual coal seams within the coal bearing subdivisions of the Wilcox Group--the Hooper, Simsboro and Calvert Bluff formations. Preliminary modeling studies were run to determine if gravity effects would affect the performance of CO{sub 2} sequestration in coalbed methane reservoirs. Results indicated that gravity could adversely affect sweep efficiency and, thus, volumes of CO{sub 2} sequestered and methane produced in thick, vertically continuous coals. Preliminary modeling studies were also run to determine the effect of injection gas composition on sequestration in low-rank coalbeds. Injected gas composition was varied from pure CO{sub 2} to pure N{sub 2}, and results show that increasing N{sub 2} content degrades CO{sub 2} sequestration and methane production performance. We have reached a Data Exchange Agreement with Anadarko Petroleum Corporation. We are currently incorporating the Anadarko data into our work, and expect these data to greatly enhance the accuracy and value of our studies.

Duane A. Mcvay; Walter B. Ayers, Jr.; Jerry L. Jensen

2004-02-01T23:59:59.000Z

53

Coping with the Decline in Coke Quality – Using Onsite Blending ...  

Science Conference Proceedings (OSTI)

... coke (CPC), the blending of non-traditional cokes (NTAC's) has increased. ... Prebaked Anode from Coal - Utilization of Coal Extract as a Coke Feedstock-.

54

Form EIA-5 Users Manual Quarterly Coal Consumption and Quality - Coke Plants  

U.S. Energy Information Administration (EIA) Indexed Site

5 5 Users Manual Quarterly Coal Consumption and Quality - Coke Plants Document Number: 001 Version: 2.0 June 2011 i June 2011 Document History Number Date Section Description 1 2 June 2011 June 2011 Document initiation Revised screen shots and remove external user references. Primary POC: Tejasvi Raghuveer Phone: (202) 586-8926 Email: Tejasvi.Raghuveer@eia.gov Document Changes/Maintenance POC: Primary POC: Tejasvi Raghuveer Phone: (202) 586-8926 Email: Tejasvi.Raghuveer@eia.gov Project References: Coal Internet Data Collection (CIDC) User's Manual, September 2007 ii June 2011 Content 1. General System Overview ................................................................................. 1

55

CO2 Sequestration Potential of Texas Low-Rank Coals  

SciTech Connect

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (ECBM) recovery as an added benefit of sequestration. The main objectives for this reporting period were to (1) estimate the potential for CO{sub 2} sequestration in, and methane production from, low-rank coals of the Lower Calvert Bluff Formation of the Wilcox Group in the east-central Texas region, (2) quantify uncertainty associated with these estimates, (3) conduct reservoir and economic analyses of CO{sub 2} sequestration and ECBM production using horizontal wells, and (4) compare the results with those obtained from previous studies of vertical wells. To estimate the total volumes of CO{sub 2} that may be sequestered in, and total volumes of methane that can be produced from, the Wilcox Group low-rank coals in east-central Texas, we used data provided by Anadarko Petroleum Corporation, data obtained during this research, and results of probabilistic simulation modeling studies we conducted. For the analysis, we applied our base-case coal seam characteristics to a 2,930-mi{sup 2} (1,875,200-ac) area where Calvert Bluff coal seams range between 4,000 and 6,200 ft deep. Results of the probabilistic analysis indicate that potential CO{sub 2} sequestration capacity of the coals ranges between 27.2 and 49.2 Tcf (1.57 and 2.69 billion tons), with a mean value of 38 Tcf (2.2 billion tons), assuming a 72.4% injection efficiency. Estimates of recoverable methane resources, assuming a 71.3% recovery factor, range between 6.3 and 13.6 Tcf, with a mean of 9.8 Tcf. As part of the technology transfer for this project, we presented the paper SPE 100584 at the 2006 SPE Gas Technology Symposium held in Calgary, Alberta, Canada, on May 15-18, 2006. Also, we submitted an abstract to be considered for inclusion in a special volume dedicated to CO{sub 2} sequestration in geologic media, which is planned for publication by the American Association of Petroleum Geologists.

Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

2006-07-01T23:59:59.000Z

56

Liquefaction of calcium-containing subbituminous coals and coals of lower rank  

DOE Patents (OSTI)

A process for the treatment of a calcium-containing subbituminous coal and coals of lower rank to form insoluble, thermally stable calcium salts which remain within the solids portions of the residue on liquefaction of the coal, thereby suppressing the formation scale, made up largely of calcium carbonate deposits, e.g., vaterite, which normally forms within the coal liquefaction reactor (i.e., coal liquefaction zone), e.g., on reactor surfaces, lines, auxiliary equipment and the like. A solution of a compound or salt characterized by the formula MX, where M is a Group IA metal of the Periodic Table of the Elements, and X is an anion which is capable of forming water-insoluble, thermally stable calcium compounds, is maintained in contact with a particulate coal feed sufficient to impregnate said salt or compound into the pores of the coal. On separation of the impregnated particulate coal from the solution, the coal can be liquefied in a coal liquefaction reactor (reaction zone) at coal liquefaction conditions without significant formation of vaterite or other forms of calcium carbonate on reactor surfaces, auxiliary equipment and the like; and the Group IA metal which remains within the liquefaction bottoms catalyzes the reaction when the liquefaction bottoms are subjected to a gasification reaction.

Gorbaty, Martin L. (Sanwood, NJ); Taunton, John W. (Seabrook, TX)

1980-01-01T23:59:59.000Z

57

Cracking of simulated oil refinery off-gas over a coal char, petroleum coke, and quartz  

Science Conference Proceedings (OSTI)

The cracking of oil refinery off-gas, simulated with a gas mixture containing methane (51%), ethylene (21.4%), ethane (21.1%), and propane (6.5%), over a coal char, petroleum coke, and quartz, respectively, has been studied in a fixed bed reactor. The experiments were performed at temperatures between 850 and 1000{sup o}C and at atmospheric pressure. The results show that the conversions of all species considered increased with increasing temperature. Ethane and propane completely decomposed over all three bed materials in the temperature range investigated. However, the higher initial conversion rates of methane and ethylene cracking at all temperatures were observed only over the coal char and not on the petroleum coke and quartz, indicating a significant catalytic effect of the coal char on methane and ethylene cracking. Methane and ethylene conversions decreased with reaction time due to deactivation of the coal char by carbon deposition on the char surface and, in the later stage of a cracking experiment, became negative, suggesting that methane and ethylene had been formed during the cracking of ethane and propane. 16 refs., 13 figs., 2 tabs.

Yuan Zhang; Jin-hu Wu; Dong-ke Zhang [Chinese Academy of Sciences, Taiyuan (China). Institute of Coal Chemistry

2008-03-15T23:59:59.000Z

58

CO2 SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS  

Science Conference Proceedings (OSTI)

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. there were two main objectives for this reporting period. first, they wanted to collect wilcox coal samples from depths similar to those of probable sequestration sites, with the objective of determining accurate parameters for reservoir model description and for reservoir simulation. The second objective was to pursue opportunities for determining permeability of deep Wilcox coal to use as additional, necessary data for modeling reservoir performance during CO{sub 2} sequestration and enhanced coalbed methane recovery. In mid-summer, Anadarko Petroleum Corporation agreed to allow the authors to collect Wilcox Group coal samples from a well that was to be drilled to the Austin Chalk, which is several thousand feet below the Wilcox. In addition, they agreed to allow them to perform permeability tests in coal beds in an existing shut-in well. Both wells are in the region of the Sam K. Seymour power station, a site that they earlier identified as a major point source of CO{sub 2}. They negotiated contracts for sidewall core collection and core analyses, and they began discussions with a service company to perform permeability testing. To collect sidewall core samples of the Wilcox coals, they made structure and isopach maps and cross sections to select coal beds and to determine their depths for coring. On September 29, 10 sidewall core samples were obtained from 3 coal beds of the Lower Calvert Bluff Formation of the Wilcox Group. The samples were desorbed in 4 sidewall core canisters. Desorbed gas samples were sent to a laboratory for gas compositional analyses, and the coal samples were sent to another laboratory to measure CO{sub 2}, CH{sub 4}, and N{sub 2} sorption isotherms. All analyses should be finished by the end of December. A preliminary report shows methane content values for the desorbed coal samples ranged between 330 and 388 scf/t., on ''as received'' basis. Residual gas content of the coals was not included in the analyses, which results in an approximate 5-10% underestimation of in-situ gas content. Coal maps indicate that total coal thickness is 40-70 ft in the Lower Calvert Bluff Formation of the Wilcox Group in the vicinity of the Sam K. Seymour power plant. A conservative estimate indicates that methane in place for a well on 160-acre spacing is approximately 3.5 Bcf in Lower Calvert Bluff coal beds. When they receive sorption isotherm data from the laboratory, they will determine the amount of CO{sub 2} that it may be possible to sequester in Wilcox coals. In December, when the final laboratory and field test data are available, they will complete the reservoir model and begin to simulate CO{sub 2} sequestration and enhanced CH{sub 4} production.

Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

2004-11-01T23:59:59.000Z

59

Process to improve boiler operation by supplemental firing with thermally beneficiated low rank coal  

DOE Patents (OSTI)

The invention described is a process for improving the performance of a commercial coal or lignite fired boiler system by supplementing its normal coal supply with a controlled quantity of thermally beneficiated low rank coal, (TBLRC). This supplemental TBLRC can be delivered either to the solid fuel mill (pulverizer) or directly to the coal burner feed pipe. Specific benefits are supplied based on knowledge of equipment types that may be employed on a commercial scale to complete the process. The thermally beneficiated low rank coal can be delivered along with regular coal or intermittently with regular coal as the needs require.

Sheldon, Ray W. (Huntley, MT)

2001-01-01T23:59:59.000Z

60

Use of resin-bearing wastes from coke and coal chemicals production at the Novokuznetsk Metallurgical Combine  

SciTech Connect

The coke and coal chemicals plant at the Novokuznetsk Metallurgical Combine is making trial use of a technology that recycles waste products in 'tar ponds.' Specialists from the Ekomash company have installed a recycling unit in one area of the plant's dump, the unit including an inclined conveyor with a steam heater and a receiving hopper The coal preparation shop receives the wastes in a heated bin, where a screw mixes the wastes with pail of the charge for the coking ovens. The mixture subsequently travels along a moving conveyor belt together with the rest of the charge materials. The addition of up to 2% resin-bearing waste materials to the coal charge has not had any significant effect on the strength properties of the coke.

Kul'kova, T.N.; Yablochkin, N.V.; Gal'chenko, A.I.; Karyakina, E.A.; Litvinova, V.A.; Gorbach, D.A.

2007-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Coal rank trends in western Kentucky coal field and relationship to hydrocarbon occurrence  

SciTech Connect

Extensive oil and gas development has occurred in the high volatile C bituminous region north of the Rough Creek fault zone, but few pools are known within the Webster syncline south of the fault zone. The rank of the Middle Pennsylvanian coals can be used to estimate the level of maturation of the Devonian New Albany Shale, a likely source rock for much of the oil and gas in the coal field. Based on relatively few data points, previous studies on the maturation of the New Albany Shale, which lies about 1 km below the Springfield coal, indicate an equivalent medium volatile bituminous (1.0-1.2% R{sub max}) rank in the Fluorspar district. New Albany rank decreases to an equivalent high volatile B/C (0.6% R{sub max}) north of the Rough Creek fault zone. Whereas the shale in the latter region is situated within the oil generation window, the higher rank region is past the peak of the level of maturation of the New Albany Shale. The significance of the New Albany reflectancy is dependent on the suppression of vitrinite reflectance in organic-rich shales. The possibility of reflectance suppression would imply that the shales could be more mature than studies have indicated.

Hower, J.C.; Rimmer, S.M.; Williams, D.A.; Beard, J.G. (Univ. of Kentucky, Lexington (USA))

1989-09-01T23:59:59.000Z

62

Dale Coke: Coke Farm  

E-Print Network (OSTI)

Dale Coke Photo by Benjamin J. Myers.2009. Coke FarmDale Coke grew up on an apricot orchard in California’s

Farmer, Ellen

2010-01-01T23:59:59.000Z

63

Adsorptive removal of nitrogen from coal-based needle coke feedstocks using activated carbon.  

E-Print Network (OSTI)

??A low percentage of nitrogen in needle coke feedstocks is desired for the reduction of puffing during the process of graphitization of needle coke. The… (more)

Madala, Sreeja.

2009-01-01T23:59:59.000Z

64

Low-rank coal research, Task 5.1. Topical report, April 1986--December 1992  

SciTech Connect

This document is a topical progress report for Low-Rank Coal Research performed April 1986 - December 1992. Control Technology and Coal Preparation Research is described for Flue Gas Cleanup, Waste Management, Regional Energy Policy Program for the Northern Great Plains, and Hot-Gas Cleanup. Advanced Research and Technology Development was conducted on Turbine Combustion Phenomena, Combustion Inorganic Transformation (two sections), Liquefaction Reactivity of Low-Rank Coals, Gasification Ash and Slag Characterization, and Coal Science. Combustion Research is described for Atmospheric Fluidized-Bed Combustion, Beneficiation of Low-Rank Coals, Combustion Characterization of Low-Rank Fuels (completed 10/31/90), Diesel Utilization of Low-Rank Coals (completed 12/31/90), Produce and Characterize HWD (hot-water drying) Fuels for Heat Engine Applications (completed 10/31/90), Nitrous Oxide Emission, and Pressurized Fluidized-Bed Combustion. Liquefaction Research in Low-Rank Coal Direct Liquefaction is discussed. Gasification Research was conducted in Production of Hydrogen and By-Products from Coals and in Sulfur Forms in Coal.

1993-02-01T23:59:59.000Z

65

O A L Section 2. Coal  

U.S. Energy Information Administration (EIA)

Section 2. Coal Coal prices are developed for the following three categories: coking coal; steam coal (all noncoking coal); and coal coke imports and exports.

66

Table A5. Approximate Heat Content of Coal and Coal Coke, 1949 ...  

U.S. Energy Information Administration (EIA)

This Week in Petroleum › Weekly Petroleum Status Report › Weekly Natural Gas Storage Report ... coal obtained from a refuse bank or slurry dam, anthracite culm,

67

Table A5. Approximate Heat Content of Coal and Coal Coke, 1949 ...  

U.S. Energy Information Administration (EIA)

1 Beginning in 2001, includes a small amount of refuse recovery (coal recaptured from a refuse mine, and cleaned to reduce the concentration of ...

68

Program on Technology Innovation: Advanced Concepts in Slurry-Fed Low-Rank Coal Gasification  

Science Conference Proceedings (OSTI)

This report documents the results of a Technology Innovation screening study of concepts for improving the performance of slurry-fed gasification combined cycle power plants on low rank coals by using two innovative coal preparation technologies: coal slurries with liquid CO2 as the fluid, and hot water drying. Slurry-fed gasification technologies have a cost advantage over dry-fed systems, but they suffer a large performance penalty when used on low rank coals because of the large fraction of water and ...

2006-12-01T23:59:59.000Z

69

Low-rank coal study. Volume 4. Regulatory, environmental, and market analyses  

Science Conference Proceedings (OSTI)

The regulatory, environmental, and market constraints to development of US low-rank coal resources are analyzed. Government-imposed environmental and regulatory requirements are among the most important factors that determine the markets for low-rank coal and the technology used in the extraction, delivery, and utilization systems. Both state and federal controls are examined, in light of available data on impacts and effluents associated with major low-rank coal development efforts. The market analysis examines both the penetration of existing markets by low-rank coal and the evolution of potential markets in the future. The electric utility industry consumes about 99 percent of the total low-rank coal production. This use in utility boilers rose dramatically in the 1970's and is expected to continue to grow rapidly. In the late 1980's and 1990's, industrial direct use of low-rank coal and the production of synthetic fuels are expected to start growing as major new markets.

Not Available

1980-11-01T23:59:59.000Z

70

Anaerobic processing of low-rank coals. Quarterly progress report, July 1--September 30, 1992  

SciTech Connect

The overall goal of this project is to find biological methods to remove carboxylic functionalities from low-rank coals and to assess the properties of the modified coal towards coal liquefaction. The main objectives for this quarter were: (i) continuation of microbial consortia maintenance and completion of coal decarboxylation using batch reactor system, (ii) decarboxylation of model polymer, (iii) characterization of biotreated coals, and (iv) microautoclave liquefaction of the botreated coal. Progress is reported on the thermogravimetric analysis of coal biotreated in the absence of methanogens and under 5% hydrogen gas exhibits increased volatile carbon to fixed carbon ratio; that the microbial consortia developed on coal are being adapted to two different model polymers containing free carboxylic groups to examine decarboxylation ability of consortium; completion of experiments to decarboxylate two model polymers, polyacrylic acid and polymethyl methacrylate, have been completed; that the biotreated coal showed increase in THF-solubles.

Jain, M.K.; Narayan, R.; Han, O.

1992-12-31T23:59:59.000Z

71

Catalyzed steam gasification of low-rank coals to produce hydrogen  

Science Conference Proceedings (OSTI)

Advanced coal gasification technologies using low-rank coal is a promising alternative for meeting future demand for hydrogen. Steam gasification tests conducted at temperatures between 700/sup 0/ and 800/sup 0/C and atmospheric pressure resulted in product gas compositions matching those predicted by thermodynamic equilibrium calculations, 63-65 mol% hydrogen and less than 1 mol% methane. Steam gasification tests with four low-rank coals and a single bituminous coal were performed in a laboratory-scale thermogravimetric analyzer (TGA) at temperatures of 700/sup 0/, 750/sup 0/, and 800/sup 0/C to evaluate process kinetics with and without catalyst addition. Catalysts screened included K/sub 2/CO/sub 3/, Na/sub 2/CO/sub 3/, trona, nahcolite, sunflower hull ash, and recycled lignite ash. Uncatalyzed lignites and a subbituminous coal were found to be eight to ten times more reactive with steam at 700/sup 0/ to 800/sup 0/C than an Illinois bituminous coal. This relationship, within this narrow temperature range, is important as this is the range that thermodynamically favors the production of hydrogen from steam gasification at atmospheric pressure. The reactivity of the uncatalyzed coals increased 3 to 4 times with an increase in steam gasification temperature from 700/sup 0/ to 800/sup 0/C. For the catalyzed coals during steam gasification: Reactivity increased approximately 2 times over the 700/sup 0/ to 800/sup 0/C temperature range for low-rank coals catalyzed with potassium carbonate. Sodium carbonate was found to be as effective a catalyst as potassium carbonate for the steam gasification of low-rank coal chars on a mass loading basis; and naturally occurring mineral sources of sodium carbonates/bicarbonates, trona and nahcolite, are as effective in catalyzing low-rank coal steam gasification as the pure carbonates. 18 refs., 6 figs., 2 tabs.

Sears, R.E.; Timpe, R.C.; Galegher, S.J.; Willson, W.G.

1986-04-01T23:59:59.000Z

72

Evaluation of a Dow-Based Gasification-Combined-Cycle Plant Using Low-Rank Coals  

Science Conference Proceedings (OSTI)

This feasibility study developed performance and cost data for two different Dow-based gasification-combined-cycle (GCC) power plants, designed to fire either Texas lignite or Wyoming subbituminous coals at a Gulf Coast location. It demonstrated the cost-effectiveness and efficiency of these plants for generating power from low-rank coals.

1989-04-25T23:59:59.000Z

73

Low-rank coal research: Volume 2, Advanced research and technology development: Final report  

SciTech Connect

Volume II contains articles on advanced combustion phenomena, combustion inorganic transformation; coal/char reactivity; liquefaction reactivity of low-rank coals, gasification ash and slag characterization, and fine particulate emissions. These articles have been entered individually into EDB and ERA. (LTN)

Mann, M.D.; Swanson, M.L.; Benson, S.A.; Radonovich, L.; Steadman, E.N.; Sweeny, P.G.; McCollor, D.P.; Kleesattel, D.; Grow, D.; Falcone, S.K.

1987-04-01T23:59:59.000Z

74

Thirteenth biennial lignite symposium: technology and utilization of low-rank coals proceedings. Volume 2  

Science Conference Proceedings (OSTI)

These proceedings are the collected manuscripts from the 1985 Lignite Symposium held at Bismarck, North Dakota on May 21-23, 1985. Sponsorship of the thirteenth biennial meeting was by the United States Department of Energy, the University of North Dakota Energy Research Center, and the Texas University Coal Research Consortium. Seven technical sessions plus two luncheons and a banquet were held during the two and a half day meeting. The final half day included tours of the Great Plains Gasification Plant; Basin Electric's Antelope Valley Power Station; and the Freedom Mine. Sessions covered diverse topics related to the technology and use of low-rank coals including coal development and public policy, combustion, gasification, environmental systems for low-rank coal utilization, liquefaction, beneficiation and coal mining and coal inorganics. All the papers have been entered individually into EDB and ERA.

Jones, M.L. (ed.)

1986-02-01T23:59:59.000Z

75

Transportation costs for new fuel forms produced from low rank US coals  

DOE Green Energy (OSTI)

Transportation costs are examined for four types of new fuel forms (solid, syncrude, methanol, and slurry) produced from low rank coals found in the lower 48 states of the USA. Nine low rank coal deposits are considered as possible feedstocks for mine mouth processing plants. Transportation modes analyzed include ship/barge, pipelines, rail, and truck. The largest potential market for the new fuel forms is coal-fired utility boilers without emission controls. Lowest cost routes from each of the nine source regions to supply this market are determined. 12 figs.

Newcombe, R.J.; McKelvey, D.G. (TMS, Inc., Germantown, MD (USA)); Ruether, J.A. (USDOE Pittsburgh Energy Technology Center, PA (USA))

1990-09-01T23:59:59.000Z

76

Process for clean-burning fuel from low-rank coal  

SciTech Connect

A process for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage.

Merriam, Norman W. (Laramie, WY); Sethi, Vijay (Laramie, WY); Brecher, Lee E. (Laramie, WY)

1994-01-01T23:59:59.000Z

77

Low rank coal upgrading in a flow of hot water  

Science Conference Proceedings (OSTI)

Simultaneous hydrothermal degradation and extraction at around 350{sup o}C using flowing solvent as a reaction/extraction medium were proposed for upgrading brown coal, more specifically, for converting brown coal into several fractions having different molecular weight and chemical structure under mild conditions. When an Australian brown coal, Loy Yang coal, was treated by water at 350{sup o}C under 18 MPa, the coal was separated into four fractions: gaseous product by 8% yield, water-soluble extract at room temperature (soluble) by 23% yield, extract precipitates as solid at room temperature (deposit) by 23% yield, and residual coal (upgraded coal) by 46% yield on daf basis. The separation was found to be realized by in situ extraction of low-molecular-weight substances released from coal macromolecular structure and/or those generated by hydrothermal decomposition reactions at 350{sup o}C. The solid products obtained, deposit and upgraded coal, were characterized in detail to examine the possibility of their effective utilization as solid fuel and chemical feed stock. The upgraded coal showed higher heating value and higher gasification reactivity than the parent coal, indicating that the upgraded coal can be a better solid fuel than the parent coal. The solid extract, deposit, was found to show thermoplasticity at less than 200{sup o}C, suggesting the possibility of utilizing the deposit as a raw material of high performance carbon materials. Several variables affecting the performance of the proposed method are also examined in detail in this paper. 12 refs., 8 figs., 3 tabs.

Masato Morimoto; Hiroyuki Nakagawa; Kouichi Miura [Kyoto University, Kyoto (Japan). Department of Chemical Engineering

2009-09-15T23:59:59.000Z

78

Low-rank coal study: national needs for resource development. Volume 3. Technology evaluation  

SciTech Connect

Technologies applicable to the development and use of low-rank coals are analyzed in order to identify specific needs for research, development, and demonstration (RD and D). Major sections of the report address the following technologies: extraction; transportation; preparation, handling and storage; conventional combustion and environmental control technology; gasification; liquefaction; and pyrolysis. Each of these sections contains an introduction and summary of the key issues with regard to subbituminous coal and lignite; description of all relevant technology, both existing and under development; a description of related environmental control technology; an evaluation of the effects of low-rank coal properties on the technology; and summaries of current commercial status of the technology and/or current RD and D projects relevant to low-rank coals.

1980-11-01T23:59:59.000Z

79

Kinetics of catalyzed steam gasification of low-rank coals to produce hydrogen. Final report  

Science Conference Proceedings (OSTI)

The principal goal of coal char-steam gasification research is to establish the feasibility of low-rank coal gasification for hydrogen production. The program has focused on determining reaction conditions for maximum product gas hydrogen content and on evaluating process kinetics with and without catalyst addition. The high inherent reactivity of lignites and subbituminous coals, compared to coals of higher rank, make them the probable choice for use in steam gasification. An extensive matrix of char-steam gasification tests was performed in a laboratory-scale thermogravimetric analyzer (TGA) at temperatures of 700/sup 0/, 750/sup 0/, and 800/sup 0/C. Reaction conditions for these tests were based on the results of earlier work at UNDERC in which product gases from fixed-bed, atmospheric pressure, steam gasification at temperatures of 700/sup 0/ to 750/sup 0/C were found to contain 63 to 65 mole % hydrogen, with the remainder being carbon dioxide, carbon monoxide, and less than 1 mole % methane. Four low-rank coals and one bituminous coal were included in the TGA test matrix. Catalysts screened in the study included K/sub 2/CO/sub 3/, Na/sub 2/CO/sub 3/, trona, nahcolite, sunflower hull ash, and lignite ash. Results of this study showed uncatalyzed North Dakota and Texas lignites to be slightly more reactive than a Wyoming subbituminous coal, and 8 to 10 times more reactive than an Illinois bituminous coal. Several catalysts that substantially improved low-rank coal steam gasification rates included pure and mineral (trona and nahcolite) alkali carbonates. The reactivity observed when using trona and nahcolite to catalyze the steam gasification was the highest, at nearly 3.5 times that without catalysts. The use of these inexpensive, naturally-occurring, alkalis as gasification catalysts may result in elimination of the need for catalyst recovery in the hydrogen-from-coal process. 11 refs., 23 figs., 9 tabs.

Galegher, S.J.; Timpe, R.C.; Willson, W.G.; Farnum, S.A.

1986-06-01T23:59:59.000Z

80

Definition: Coke | Open Energy Information  

Open Energy Info (EERE)

Coke A solid carbonaceous residue derived from low-ash, low-sulfur bituminous coal; used as a fuel and a reducing agent in smelting iron ore in a blast furnace. Coke from...

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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81

Catalyzed steam gasification of low-rank coals to produce hydrogen  

Science Conference Proceedings (OSTI)

Advance coal gasification technologies using low-rank coal is a promising alternative for meeting future demand for hydrogen. Steam gasification tests conducted at temperatures between 700/sup 0/ and 800/sup 0/C and atmospheric pressure resulted in product gas compositions matching those predicted by thermodynamic equilibrium calculations, 63-65 mol% hydrogen and less then 1 mol% methane. Steam gasification tests with four low-rank coals and a single bituminous coal were performed in a laboratory-scale thermogravimetric analyzer (TGA) at temperatures of 700/sup 0/, 750/sup 0/, and 800/sup 0/C to evaluate process kinetics with and without catalyst addition. Catalysts screened included K/sub 2/CO/sub 3/, Na/sub 2/CO/sub 3/, trona, nahcolite, sunflower hull ash, and recycled lignite ash. North Dakota and Texas lignite chars were slightly more reactive than a Wyoming subbituminous coal char and eight to ten times more reactive than an Illinois bituminous coal char. Pure and mineral (trona nd nahcolite) alkali carbonates and recycled ash from K/sub 2/CO/sub 3/-catalyzed steam gasification tests substantially improved low-rank coal steam gasification rates. The reactivities obtained using trona and nahcolite to catalyze the steam gasification were the highest, at nearly 3.5 times those without catalysts.

Sears, R.E.; Timpe, R.C.; Galegher, S.J.; Willson, W.G.

1986-01-01T23:59:59.000Z

82

Combustion and gasification characteristics of chars from four commercially significant coals of different rank. Final report  

Science Conference Proceedings (OSTI)

The combustion and gasification kinetics of four size graded coal chars were investigated experimentally in Combustion Engineering's Drop Tube Furnace System (DTFS). The chars were prepared in the DTFS from commercially significant coals representing a wide range of rank; these included a Pittsburgh No. 8 Seam hvAb coal, an Illinois No. 6 Seam hvCb coal, a Wyoming Sub C, and a Texas Lignite A. Additionally, a number of standard ASTM and special bench scale tests were performed on the coals and chars to characterize their physicochemical properties. Results showed that the lower rank coal chars were more reactive than the higher rank coal chars and that combustion reactions of chars were much faster than the corresponding gasification reactions. Fuel properties, temperature, and reactant gas partial pressure had a significant influence on both combustion and gasification, and particle size had a mild but discernible influence on gasification. Fuel reactivities were closely related to pore structure. Computer simulation of the combustion and gasification performances of the subject samples in the DTFS supported the experimental findings.

Nsakala, N.Y.; Patel, R.L.; Lao, T.C.

1982-09-01T23:59:59.000Z

83

Extraction of iron and calcium from low rank coal by supercritical carbon dioxide with entrainers  

SciTech Connect

Iron and calcium were extracted from low rank coal with supercritical carbon dioxide and methanol, ethanol, acetic acid, acetyl acetone, ethanol and acetic acid, or acetyl acetone and water entrainers at 313.2 K and 15.0 MPa. The low rank coal used in this study was Berau coal from Indonesia. The addition of methanol, ethanol, or acetic acid entrainers in supercritical carbon dioxide showed very limited effect on enhancement of the recovery rates of Fe. The recovery rates of Fe from dried coal by supercritical carbon dioxide with acetyl acetone were low however, the addition of acetyl acetone with water in supercritical carbon dioxide remarkably enhanced the recovery rates of Fe. Water seems to play an important role in extracting Fe from coal with supercritical carbon dioxide and acetyl acetone. On the other hand, the extraction rates of Ca with supercritical carbon dioxide and water, methanol, ethanol, and acetyl acetone entrainers were very low. The addition of acetic acid with or without water in supercritical carbon dioxide slightly enhanced the recovery rates of Ca. The addition of acetic acid with ethanol in supercritical carbon dioxide remarkably enhanced the recovery rates of Ca. The effect of carbon dioxide flow rate and coal particle size on the recovery rates of Fe were examined. The recovery rate of Fe increased with increasing carbon dioxide flow rate and with decreasing particle size of the low rank coal.

Iwai, Y.; Okamoto, N.; Ohta, S.; Arai, Y.; Sakanishi, K. [Kyushu University, Fukuoka (Japan). Dept. of Chemical Engineering

2007-03-15T23:59:59.000Z

84

Anaerobic biprocessing of low rank coals. Final technical report, September 12, 1990--August 10, 1993  

SciTech Connect

Coal solubilization under aerobic conditions results in oxygenated coal product which, in turn, makes the coal poorer fuel than the starting material. A novel approach has been made in this project is to remove oxygen from coal by reductive decarboxylation. In Wyodak subbituminous coal the major oxygen functionality is carboxylic groups which exist predominantly as carboxylate anions strongly chelating metal cations like Ca{sup 2+} and forming strong macromolecular crosslinks which contribute in large measure to network polymer structure. Removal of the carboxylic groups at ambient temperature by anaerobic organisms would unravel the macromoleculer network, resulting in smaller coal macromolecules with increased H/C ratio which has better fuel value and better processing prospects. These studies described here sought to find biological methods to remove carboxylic functionalities from low rank coals under ambient conditions and to assess the properties of these modified coals towards coal liquefaction. Efforts were made to establish anaerobic microbial consortia having decarboxylating ability, decarboxylate coal with the adapted microbial consortia, isolate the organisms, and characterize the biotreated coal products. Production of CO{sup 2} was used as the primary indicator for possible coal decarboxylation.

Jain, M.K.; Narayan, R.

1993-08-05T23:59:59.000Z

85

Production of hydrogen from low-rank coals: (Task 6. 1)  

SciTech Connect

The principal goal of this research project is to establish the feasibility of low-rank coal gasification for low-cost hydrogen production. This research involves a proof-of-concept and the early stages of engineering development using a continuous process unit (CPU). In parallel with this process development work, an evaluation of the relationship between the fundamental properties of low-rank coals and their reactivity under hydrogen-producing conditions is also being conducted. A 20--40 lb/hr fluid-bed gasifier (FBG) CPU was commissioned during this time period and has logged over 400 hours of operation during shakedown and operability testing. Maximum hydrogen production rates from the operability testing were over 17 SCF/lb MAF coal for both Wyodak and Velva test coals with a limestone bed, and for Martin Lake coal using 10 wt % trona, at 800{degree}C and a 2:1 steam:carbon ratio to 2:1 and increased with bed temperature over the range of 700{degree} to 800{degree}C. Agglomeration of the bed material when using trona as the catalyst was an operation problem during the CPU operability testing. The char of the low-rank coals was four to six times more reactive than that of the bituminous coal tested in the laboratory using thermogravimetric analysis (TGA). Surface analysis of the chars showed that the uniform distribution of K{sub 2}CO{sub 3} catalyst decreased with increasing coal rank. 8 refs., 17 figs., 16 tabs.

Sears, R.E.; Timpe, R.C.; Musich, M.A.; Cisney, S.J.

1988-04-01T23:59:59.000Z

86

COMBUSTION OF COAL IN AN OPPOSED FLOW DIFFUSION BURNER  

E-Print Network (OSTI)

P.J. and Wells, J.H. , Coal, Coke and Coal Chemicals, 108, (of coal, carbon, char. coke, and other coal derived orpulverized coal, char, coke, solvent refined coal, and coal

Chin, W.K.

2010-01-01T23:59:59.000Z

87

Program on Technology Innovation: Advanced Concepts in Slurry Fed Low Rank Coal Gasification  

Science Conference Proceedings (OSTI)

This document reports on experimental and theoretical analyses of low rank coal/liquid CO2 slurries (LRC/CO2(l)). The results showed that viscosities of LRC/CO2(l) were much lower than for LRC/water slurries of similar coal concentrations and higher coal concentrations could be obtained for liquid CO2 slurries than for water-based slurries at flow conditions typical of industrial scale gasification systems. ASPENplus analyses of a typical integrated gasification combined cycle (IGCC) system showed no del...

2009-04-17T23:59:59.000Z

88

Process for clean-burning fuel from low-rank coal  

DOE Patents (OSTI)

A process is described for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage. 1 fig.

Merriam, N.W.; Sethi, V.; Brecher, L.E.

1994-06-21T23:59:59.000Z

89

Study on the effect of heat treatment and gasification on the carbon structure of coal chars and metallurgical cokes using fourier transform Raman spectroscopy  

Science Conference Proceedings (OSTI)

Differences in the development of carbon structures between coal chars and metallurgical cokes during high-temperature reactions have been investigated using Raman spectroscopy. These are important to differentiate between different types of carbons in dust recovered from the top gas of the blast furnace. Coal chars have been prepared from a typical injectant coal under different heat-treatment conditions. These chars reflected the effect of peak temperature, residence time at peak temperature, heating rate and pressure on the evolution of their carbon structures. The independent effect of gasification on the development of the carbon structure of a representative coal char has also been studied. A similar investigation has also been carried out to study the effect of heat-treatment temperature (from 1300 to 2000{sup o}C) and gasification on the carbon structure of a typical metallurgical coke. Two Raman spectral parameters, the intensity ratio of the D band to the G band (I{sub D}/I{sub G}) and the intensity ratio of the valley between D and G bands to the G band (I{sub V}/I{sub G}), have been found useful in assessing changes in carbon structure. An increase in I{sub D}/I{sub G} indicates the growth of basic graphene structural units across the temperature range studied. A decrease in I{sub V}/I{sub G} appears to suggest the elimination of amorphous carbonaceous materials and ordering of the overall carbon structure. The Raman spectral differences observed between coal chars and metallurgical cokes are considered to result from the difference in the time-temperature history between the raw injectant coal and the metallurgical coke and may lay the basis for differentiation between metallurgical coke fines and coal char residues present in the dust carried over the top of the blast furnace. 41 refs., 17 figs., 3 tabs.

S. Dong; P. Alvarez; N. Paterson; D.R. Dugwell; R. Kandiyoti [Imperial College London, London (United Kingdom). Department of Chemical Engineering

2009-03-15T23:59:59.000Z

90

Coal News and Markets  

U.S. Energy Information Administration (EIA)

Metallurgical coal markets became volatile when the thriving Chinese steel industry in late 2003 and 2004 made outsized demands for coking coal and met coke, ...

91

,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components"  

U.S. Energy Information Administration (EIA) Indexed Site

2 Relative Standard Errors for Table 7.2;" 2 Relative Standard Errors for Table 7.2;" " Unit: Percents." ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Selected Wood and Other Biomass Components" ,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components" " "," ",,,,,,,,,,,,,"Total",,,,,,,,,,,,,,,,,,,,,,,"Wood Residues",,,," " " "," "," ",,,,,"Bituminous",,,,,,"Electricity","Diesel Fuel",,,,,,"Motor",,,,,,,"Natural Gas",,,"Steam",,,," ",,,"and","Wood-Related","All"

92

,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components"  

U.S. Energy Information Administration (EIA) Indexed Site

Relative Standard Errors for Table 7.1;" Relative Standard Errors for Table 7.1;" " Unit: Percents." ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Selected Wood and Other Biomass Components" ,,,,,,"Coal Components",,,"Coke",,,"Electricity Components",,,,,,,,,,,,,,"Natural Gas Components",,,"Steam Components" " "," ",,,,,,,,,,,,,"Total",,,,,,,,,,,,,,,,,,,,,,,"Wood Residues",,,," " " "," "," ",,,,,"Bituminous",,,,,,"Electricity","Diesel Fuel",,,,,,"Motor",,,,,,,"Natural Gas",,,"Steam",,,," ",,,"and","Wood-Related","All"

93

CO{sub 2} SEQUESTRATION POTENTIAL OF TEXAS LOW-RANK COALS  

SciTech Connect

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. There were three main objectives for this reporting period, which related to obtaining accurate parameters for reservoir model description and modeling reservoir performance of CO{sub 2} sequestration and enhanced coalbed methane recovery. The first objective was to collect and desorb gas from 10 sidewall core coal samples from an Anadarko Petroleum Corporation well (APCL2 well) at approximately 6,200-ft depth in the Lower Calvert Bluff Formation of the Wilcox Group in east-central Texas. The second objective was to measure sorptive capacities of these Wilcox coal samples for CO{sub 2}, CH{sub 4}, and N{sub 2}. The final objective was to contract a service company to perform pressure transient testing in Wilcox coal beds in a shut-in well, to determine permeability of deep Wilcox coal. Bulk density of the APCL2 well sidewall core samples averaged 1.332 g/cc. The 10 sidewall core samples were placed in 4 sidewall core canisters and desorbed. Total gas content of the coal (including lost gas and projected residual gas) averaged 395 scf/ton on an as-received basis. The average lost gas estimations were approximately 45% of the bulk sample total gas. Projected residual gas was 5% of in-situ gas content. Six gas samples desorbed from the sidewall cores were analyzed to determine gas composition. Average gas composition was approximately 94.3% methane, 3.0% ethane, and 0.7% propane, with traces of heavier hydrocarbon gases. Carbon dioxide averaged 1.7%. Coal from the 4 canisters was mixed to form one composite sample that was used for pure CO{sub 2}, CH{sub 4}, and N{sub 2} isotherm analyses. The composite sample was 4.53% moisture, 37.48% volatile matter, 9.86% ash, and 48.12% fixed carbon. Mean vitrinite reflectance was 0.54%. Coal rank was high-volatile C to B bituminous. Comparison of the desorbed gas content (395 scf/ton, as received) at reservoir pressure (2,697 psi) with the sorption isotherm indicates that Lower Calvert Bluff coal at this well site is oversaturated, but lost gas may have been overestimated. This high gas content suggests that little or no depressurization would be required to initiate methane production. Sorption isotherms results indicate that the sorptive capacity of CO{sub 2} is about 2.5 times that of CH{sub 4} at 1,000 psia. This ratio is similar to that of higher rank bituminous coals from other basins (e.g., Carroll, and Pashin, 2003), and it is very low in comparison to results of other low-rank coals and to the values that we used in our preliminary reservoir modeling. If this value from the APCL2 well is representative, Wilcox coals in this area will sequester less CO{sub 2} on a per ton basis than we had earlier inferred. However, because measured methane contents are higher, enhanced coalbed methane production potential is greater than we earlier inferred. Pressure transient testing for determining coal fracture permeability will be conducted soon by Pinnacle Technologies. The data from these analyses will be used to finalize our coal model for the reservoir simulation phase of the project.

Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

2005-02-01T23:59:59.000Z

94

Table F17: Coal Consumption Estimates and Imports and Exports ...  

U.S. Energy Information Administration (EIA)

Table F17: Coal Consumption Estimates and Imports and Exports of Coal Coke, 2011 State Coal Coal Coke Residential a Commercial Industrial Electric ...

95

Table F18: Coal Price and Expenditure Estimates and Imports ...  

U.S. Energy Information Administration (EIA)

Table F18: Coal Price and Expenditure Estimates and Imports and Exports of Coal Coke, 2011 State Coal Coal Coke Prices Expenditures Prices ...

96

Low-rank coal research. Final technical report, April 1, 1988--June 30, 1989, including quarterly report, April--June 1989  

DOE Green Energy (OSTI)

This work is a compilation of reports on ongoing research at the University of North Dakota. Topics include: Control Technology and Coal Preparation Research (SO{sub x}/NO{sub x} control, waste management), Advanced Research and Technology Development (turbine combustion phenomena, combustion inorganic transformation, coal/char reactivity, liquefaction reactivity of low-rank coals, gasification ash and slag characterization, fine particulate emissions), Combustion Research (fluidized bed combustion, beneficiation of low-rank coals, combustion characterization of low-rank coal fuels, diesel utilization of low-rank coals), Liquefaction Research (low-rank coal direct liquefaction), and Gasification Research (hydrogen production from low-rank coals, advanced wastewater treatment, mild gasification, color and residual COD removal from Synfuel wastewaters, Great Plains Gasification Plant, gasifier optimization).

Not Available

1989-12-31T23:59:59.000Z

97

U.S. exports of coking coal were nearly triple U.S. consumption in ...  

U.S. Energy Information Administration (EIA)

... China, India, Japan, and South Korea during 2010. Substantial steel production growth in developing countries, combined with international coal supply ...

98

Further investigation of the impact of the co-combustion of tire-derived fuel and petroleum coke on the petrology and chemistry of coal combustion products  

Science Conference Proceedings (OSTI)

A Kentucky cyclone-fired unit burns coal and tire-derived fuel, sometimes in combination with petroleum coke. A parallel pulverized combustion (pc) unit at the same plant burns the same coal, without the added fuels. The petrology, chemistry, and sulfur isotope distribution in the fuel and resulting combustion products was investigated for several configurations of the fuel blend. Zinc and Cd in the combustion products are primarily contributed from the tire-derived fuel, the V and Ni are primarily from the petroleum coke, and the As and Hg are probably largely from the coal. The sulfur isotope distribution in the cyclone unit is complicated due to the varying fuel sources. The electrostatic precipitator (ESP) array in the pc unit shows a subtle trend towards heavier S isotopic ratios in the cooler end of the ESP.

Hower, J.C.; Robertson, J.D.; Elswick, E.R.; Roberts, J.M.; Brandsteder, K.; Trimble, A.S.; Mardon, S.M. [University of Kentucky, Lexington, KY (United States). Center for Applied Energy Research

2007-07-01T23:59:59.000Z

99

Definition: Petroleum coke | Open Energy Information  

Open Energy Info (EERE)

coke coke Jump to: navigation, search Dictionary.png Petroleum coke A residue high in carbon content and low in hydrogen that is the final product of thermal decomposition in the condensation process in cracking (breaking of carbon-carbon bonds). This product is reported as marketable coke or catalyst coke.Coke from petroleum has a heating value of 6.024 million Btu per barrel.[1] View on Wikipedia Wikipedia Definition Petroleum coke (often abbreviated Pet coke or petcoke) is a carbonaceous solid derived from oil refinery coker units or other cracking processes. Other coke has traditionally been derived from coal. This coke can either be fuel grade (high in sulphur and metals) or anode grade (low in sulphur and metals). The raw coke directly out of the coker is often

100

Advanced Acid Gas Separation Technology for the Utilization of Low Rank Coals  

SciTech Connect

Air Products has developed a potentially ground-breaking technology – Sour Pressure Swing Adsorption (PSA) – to replace the solvent-based acid gas removal (AGR) systems currently employed to separate sulfur containing species, along with CO{sub 2} and other impurities, from gasifier syngas streams. The Sour PSA technology is based on adsorption processes that utilize pressure swing or temperature swing regeneration methods. Sour PSA technology has already been shown with higher rank coals to provide a significant reduction in the cost of CO{sub 2} capture for power generation, which should translate to a reduction in cost of electricity (COE), compared to baseline CO{sub 2} capture plant design. The objective of this project is to test the performance and capability of the adsorbents in handling tar and other impurities using a gaseous mixture generated from the gasification of lower rank, lignite coal. The results of this testing are used to generate a high-level pilot process design, and to prepare a techno-economic assessment evaluating the applicability of the technology to plants utilizing these coals.

Kloosterman, Jeff

2012-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Utilization of Coal Extract as a Coke Feedstock - Programmaster.org  

Science Conference Proceedings (OSTI)

Abstract Scope, Preparation of prebaked anode utilizing coal solvent extraction technology will be reported. In the prebaked anode industry, it is recognized that

102

An integrated approach to the utilization of low rank coals and biofuel  

Science Conference Proceedings (OSTI)

While suggesting an integrated approach for utilization of inferior low rank coals for power in India, the importance of low temperature carbonization followed by retrieval of all value-based products has been stressed. It is further suggested that tar, obtained in the process, could be hydrogenated and fractionated in a central plant for conversion to hydrocarbons. High ash char, the principal product of pyrolysis, has been experimentally found to be amenable to beneficiation, yielding suitable fractions for power generation, briquetting, or blending. Experimental studies have shown that forest litters and agricultural wastes, containing significant proportions of spore, cuticle, and exine--considered as precursors of hydrocarbon-generating coal macerals--also yield large quantities of tar, ammonical liquor, and the principal product, char, which can be respectively utilized for the production of petroleum substitutes, value-based chemicals, and source material for blending, briquette making, and char-water slurries, opening up new avenues for fuel utilization and conservation.

Sen, S.; Sen, M. [Central Fuel Research Inst., Nagpur (India); Moitra, N. [Nagpur Univ. (India)

1999-08-01T23:59:59.000Z

103

Results Summary Investigating the Use of Liquid CO2 Coal Slurry for Feeding Low Rank Coal to the E-Gas™ Gasifier  

Science Conference Proceedings (OSTI)

This report summarizes the results of US Department of Energy (DOE) Award No. DE-FE0007977, Liquid CO2/Coal Slurry for Feeding Low Rank Coal to Gasifiers, which investigates the practicality of using a liquid CO2/coal slurry preparation and feed system for the E-Gas gasifier in an integrated-gasification–combined-cycle (IGCC) electric power generation plant configuration.Liquid CO2 (LCO2) has several property differences from water that ...

2013-12-11T23:59:59.000Z

104

Coke briquettes  

SciTech Connect

This patent describes a briquette suitable for use as an auxiliary fuel in a shaft furnace for melting of mineral in the manufacture of mineral wool which comprises: 30-75% by weight, based on the dry weight of the briquettes, of particles of coke fines or coal fines or both, the fines consisting essentially of particles having a particle size of from 2 to 25 mm; at least 7% by weight, based on the dry weight of the briquette, of a hydraulic binder; and at least 15% by weight, based on the dry weight of the briquette, of a fine grain oxidic mineral component selected from the group consisting of sand, slag, stone powder, fly ash, limestone powder, dolomite powder, silicon dioxide, and waste material from mineral wool manufacturer, the fine grain oxidic mineral component having a particle size of less than 2 mm.

Anderson, D.B.; Juhlin, N.J.W.; Gillenium, C.I.; Kjell-Berger, O.; Brinck, O.R.

1987-04-28T23:59:59.000Z

105

Entrained Flow Gasification of Oil Sand Coke.  

E-Print Network (OSTI)

??The effect of blending woody biomass material with fluid coke and coal on the co-pyrolysis process was investigated in an entrained flow gasifier. The SEM… (more)

Vejahati, Farshid

2012-01-01T23:59:59.000Z

106

OXIDATION OF MERCURY ACROSS SCR CATALYSTS IN COAL-FIRED POWER PLANTS BURNING LOW RANK FUELS  

SciTech Connect

This is the fifth Quarterly Technical Report for DOE Cooperative Agreement No: DE-FC26-03NT41728. The objective of this program is to measure the oxidation of mercury in flue gas across SCR catalyst in a coal-fired power plant burning low rank fuels using a slipstream reactor containing multiple commercial catalysts in parallel. The Electric Power Research Institute (EPRI) and Argillon GmbH are providing co-funding for this program. This program contains multiple tasks and good progress is being made on all fronts. During this quarter, the available data from laboratory, pilot and full-scale SCR units was reviewed, leading to hypotheses about the mechanism for mercury oxidation by SCR catalysts.

Constance Senior

2004-04-30T23:59:59.000Z

107

OXIDATION OF MERCURY ACROSS SCR CATALYSTS IN COAL-FIRED POWER PLANTS BURING LOW RANK FUELS  

SciTech Connect

This is the sixth Quarterly Technical Report for DOE Cooperative Agreement No: DE-FC26-03NT41728. The objective of this program is to measure the oxidation of mercury in flue gas across SCR catalyst in a coal-fired power plant burning low rank fuels using a slipstream reactor containing multiple commercial catalysts in parallel. The Electric Power Research Institute (EPRI) and Argillon GmbH are providing co-funding for this program. This program contains multiple tasks and good progress is being made on all fronts. During this quarter, a review of the available data on mercury oxidation across SCR catalysts from small, laboratory-scale experiments, pilot-scale slipstream reactors and full-scale power plants was carried out. Data from small-scale reactors obtained with both simulated flue gas and actual coal combustion flue gas demonstrated the importance of temperature, ammonia, space velocity and chlorine on mercury oxidation across SCR catalyst. SCR catalysts are, under certain circumstances, capable of driving mercury speciation toward the gas-phase equilibrium values at SCR temperatures. Evidence suggests that mercury does not always reach equilibrium at the outlet. There may be other factors that become apparent as more data become available.

Constance Senior

2004-07-30T23:59:59.000Z

108

Coking and gasification process  

DOE Patents (OSTI)

An improved coking process for normally solid carbonaceous materials wherein the yield of liquid product from the coker is increased by adding ammonia or an ammonia precursor to the coker. The invention is particularly useful in a process wherein coal liquefaction bottoms are coked to produce both a liquid and a gaseous product. Broadly, ammonia or an ammonia precursor is added to the coker ranging from about 1 to about 60 weight percent based on normally solid carbonaceous material and is preferably added in an amount from about 2 to about 15 weight percent.

Billimoria, Rustom M. (Houston, TX); Tao, Frank F. (Baytown, TX)

1986-01-01T23:59:59.000Z

109

Coke | OpenEI  

Open Energy Info (EERE)

18 18 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142278418 Varnish cache server Coke Dataset Summary Description UK National coal (and solid fuels and gases derived from processing coal) are published in Chapter 2 (Solid Fuels and Derived Gases) of the Digest of UK Energy Statistics (DUKES). Included here are the datasets for commodity balances (1998 - 2009); supply and consumption (2005 - 2009) of coal and other fuels (e.g. coke oven gas, blast furnace gas, benzole and tars, etc). Chapter 2 of the report is available: http://www.decc.gov.uk/assets/decc/Statistics/publications/dukes/308-dukes-2010-ch2.pdf Source UK Department of Energy and Climate Change (DECC)

110

OXIDATION OF MERCURY ACROSS SCR CATALYSTS IN COAL-FIRED POWER PLANTS BURNING LOW RANK FUELS  

SciTech Connect

The objectives of this program were to measure the oxidation of mercury in flue gas across SCR catalyst in a coal-fired power plant burning low rank fuels using a slipstream reactor containing multiple commercial catalysts in parallel and to develop a greater understanding of mercury oxidation across SCR catalysts in the form of a simple model. The Electric Power Research Institute (EPRI) and Argillon GmbH provided co-funding for this program. REI used a multicatalyst slipstream reactor to determine oxidation of mercury across five commercial SCR catalysts at a power plant that burned a blend of 87% subbituminous coal and 13% bituminous coal. The chlorine content of the blend was 100 to 240 {micro}g/g on a dry basis. Mercury measurements were carried out when the catalysts were relatively new, corresponding to about 300 hours of operation and again after 2,200 hours of operation. NO{sub x}, O{sub 2} and gaseous mercury speciation at the inlet and at the outlet of each catalyst chamber were measured. In general, the catalysts all appeared capable of achieving about 90% NO{sub x} reduction at a space velocity of 3,000 hr{sup -1} when new, which is typical of full-scale installations; after 2,200 hours exposure to flue gas, some of the catalysts appeared to lose NO{sub x} activity. For the fresh commercial catalysts, oxidation of mercury was in the range of 25% to 65% at typical full-scale space velocities. A blank monolith showed no oxidation of mercury under any conditions. All catalysts showed higher mercury oxidation without ammonia, consistent with full-scale measurements. After exposure to flue gas for 2,200 hours, some of the catalysts showed reduced levels of mercury oxidation relative to the initial levels of oxidation. A model of Hg oxidation across SCRs was formulated based on full-scale data. The model took into account the effects of temperature, space velocity, catalyst type and HCl concentration in the flue gas.

Constance Senior

2004-12-31T23:59:59.000Z

111

REDUCING POWER PRODUCTION COSTS BY UTILIZING PETROLEUM COKE  

SciTech Connect

A Powder River Basin subbituminous coal from the North Antelope mine and a petroleum shot coke were received from Northern States Power Company (NSP) for testing the effects of parent fuel properties on coal-coke blend grindability and evaluating the utility of petroleum coke blending as a strategy for improving electrostatic precipitator (ESP) particulate collection efficiency. Petroleum cokes are generally harder than coals, as indicated by Hardgrove grindability tests. Therefore, the weaker coal component may concentrate in the finer size fractions during the pulverizing of coal-coke blends. The possibility of a coal-coke size fractionation effect is being investigated because it may adversely affect combustion performance. Although the blending of petroleum coke with coal may adversely affect combustion performance, it may enhance ESP particulate collection efficiency. Petroleum cokes contain much higher concentrations of V relative to coals. Consequently, coke blending can significantly increase the V content of fly ash resulting from coal-coke combustion. Pentavalent vanadium oxide (V{sub 2}O{sub 5}) is a known catalyst for transforming gaseous sulfur dioxide (SO{sub 2}[g]) to gaseous sulfur trioxide (SO{sub 3}[g]). The presence of SO{sub 3}(g) strongly affects fly ash resistivity and, thus, ESP performance.

NONE

1998-09-01T23:59:59.000Z

112

Program on Technology Innovation: Drying of Low-Rank Coal with Supercritical Carbon Dioxide (CO2) in Integrated Gasification Combined Cycle (IGCC) Plants  

Science Conference Proceedings (OSTI)

This study is part of the Electric Power Research Institute (EPRI) Technology Innovation Program to assess the potential to achieve increased process efficiency and reduced capital cost by drying low-rank coal with supercritical carbon dioxide (SCCO2). This study follows the EPRI report Program on Technology Innovation: Assessment of the Applicability of Drying Low-Rank Coal With Supercritical Carbon Dioxide in IGCC Plants (1016216), which concluded that this system has potential benefits with respect to...

2010-07-30T23:59:59.000Z

113

OXIDATION OF MERCURY ACROSS SCR CATALYSTS IN COAL-FIRED POWER PLANTS BURNING LOW RANK FUELS  

SciTech Connect

This is the third Quarterly Technical Report for DOE Cooperative Agreement No: DE-FC26-03NT41728. The objective of this program is to measure the oxidation of mercury in flue gas across SCR catalyst in a coal-fired power plant burning low rank fuels using a slipstream reactor containing multiple commercial catalysts in parallel. The Electric Power Research Institute (EPRI) and Argillon GmbH are providing co-funding for this program. This program contains multiple tasks and good progress is being made on all fronts. During this quarter, the second set of mercury measurements was made after the catalysts had been exposed to flue gas for about 2,000 hours. There was good agreement between the Ontario Hydro measurements and the SCEM measurements. Carbon trap measurements of total mercury agreed fairly well with the SCEM. There did appear to be some loss of mercury in the sampling system toward the end of the sampling campaign. NO{sub x} reductions across the catalysts ranged from 60% to 88%. Loss of total mercury across the commercial catalysts was not observed, as it had been in the March/April test series. It is not clear whether this was due to aging of the catalyst or to changes in the sampling system made between March/April and August. In the presence of ammonia, the blank monolith showed no oxidation. Two of the commercial catalysts showed mercury oxidation that was comparable to that in the March/April series. The other three commercial catalysts showed a decrease in mercury oxidation relative to the March/April series. Oxidation of mercury increased without ammonia present. Transient experiments showed that when ammonia was turned on, mercury appeared to desorb from the catalyst, suggesting displacement of adsorbed mercury by the ammonia.

Constance Senior; Temi Linjewile

2003-10-31T23:59:59.000Z

114

Reducing Power Production Costs by Utilizing Petroleum Coke  

Science Conference Proceedings (OSTI)

Petroleum coke, a byproduct of the petroleum-refining process, is an attractive primary or supplemental fuel for power production primarily because of a progressive and predictable increase in the production volumes of petroleum coke. It is most commonly blended with coal in proportions suitable to meet sulfur emission compliance, and is generally less reactive than coal. Therefore, the cofiring of petroleum coke with coal typically improves ignition, flame stability, and carbon loss relative to the comb...

2000-05-05T23:59:59.000Z

115

Clean Production of Coke from Carbonaceous Fines  

Science Conference Proceedings (OSTI)

In order to produce steel (a necessary commodity in developed nations) using conventional technologies, you must have metallurgical coke. Current coke-making technology pyrolyzes high-quality coking coals in a slot oven, but prime coking coals are becoming more expensive and slot ovens are being shut-down because of age and environmental problems. The United States typically imports about 4 million tons of coke per year, but because of a world-wide coke scarcity, metallurgical coke costs have risen from about $77 per tonne to more than $225. This coke shortage is a long-term challenge driving up the price of steel and is forcing steel makers to search for alternatives. Combustion Resources (CR) has developed a technology to produce metallurgical coke from alternative feedstocks in an environmentally clean manner. The purpose of the current project was to refine material and process requirements in order to achieve improved economic benefits and to expand upon prior work on the proposed technology through successful prototype testing of coke products. The ultimate objective of this project is commercialization of the proposed technology. During this project period, CR developed coke from over thirty different formulations that meet the strength and reactivity requirements for use as metallurgical coke. The technology has been termed CR Clean Coke because it utilizes waste materials as feedstocks and is produced in a continuous process where pollutant emissions can be significantly reduced compared to current practice. The proposed feed material and operating costs for a CR Clean Coke plant are significantly less than conventional coke plants. Even the capital costs for the proposed coke plant are about half that of current plants. The remaining barrier for CR Clean Coke to overcome prior to commercialization is full-scale testing in a blast furnace. These tests will require a significant quantity of product (tens of thousands of tons) necessitating the construction of a demonstration facility. Talks are currently underway with potential partners and investors to build a demonstration facility that will generate enough coke for meaningful blast furnace evaluation tests. If the testing is successful, CR Clean Coke could potentially eliminate the need for the United States to import any coke, effectively decreasing US Steel industry dependence on foreign nations and reducing the price of domestic steel.

Craig N. Eatough

2004-11-16T23:59:59.000Z

116

PHYSICAL CHANGES IN THE PORE STRUCTURE OF COAL WITH CHEMICAL PROCESSING  

E-Print Network (OSTI)

Structure of Coal and Coke, BCRUA, 80 (1943). F. P.Structure of Coal and Coke, BCRUA, 95 (1943). R. L. Bond andOOC on several coals and cokes. Lahiri obtained BET surface

Harris Jr, E.C.

2011-01-01T23:59:59.000Z

117

Investigations into coal coprocessing and coal liquefaction  

DOE Green Energy (OSTI)

The conversion of coal to liquid suitable as feedstock to a petroleum refinery is dependent upon several process variables. These variables include temperature, pressure, coal rank, catalyst type, nature of the feed to the reactor, type of process, etc. Western Research Institute (WRI) has initiated a research program in the area of coal liquefaction to address the impact of some of these variables upon the yield and quality of the coal-derived liquid. The principal goal of this research is to improve the efficiency of the coal liquefaction process. Two different approaches are currently being investigated. These include the coprocessing of a heavy liquid, such as crude oil, and coal using a dispersed catalyst and the direct liquefaction of coal using a supported catalyst. Another important consideration in coal liquefaction is the utilization of hydrogen, including both externally- and internally-supplied hydrogen. Because the incorporation of externally-supplied hydrogen during conversion of this very aromatic fossil fuel to, for example, transportation fuels is very expensive, improved utilization of internally-supplied hydrogen can lead to reducing processing costs. The objectives of this investigation, which is Task 3.3.4, Coal Coprocessing, of the 1991--1992 Annual Research Plan, are: (1) to evaluate coal/oil pretreatment conditions that are expected to improve the liquid yield through more efficient dispersion of an oil-soluble, iron-based catalyst, (2) to characterize the coke deposits on novel, supported catalysts after coal liquefaction experiments and to correlate the carbon skeletal structure parameters of the coke deposit with catalyst performance as measured by coal liquefaction product yield, and (3) to determine the modes of hydrogen utilization during coal liquefaction and coprocessing. Experimental results are discussed in this report.

Guffey, F.D.; Netzel, D.A.; Miknis, F.P.; Thomas, K.P. [Western Research Inst., Laramie, WY (United States); Zhang, Tiejun; Haynes, H.W. Jr. [Wyoming Univ., Laramie, WY (United States). Dept. of Chemical Engineering

1994-06-01T23:59:59.000Z

118

Kinetics of catalyzed steam gasification of low-rank coals to produce hydrogen. Final report for the period ending March 31, 1986  

SciTech Connect

The principal goal of coal char-steam gasification research at the University of North Dakota Energy Research Center (UNDERC) is to establish the feasibility of low-rank coal gasification for hydrogen production. The program has focused on determining reaction conditions for maximum product gas hydrogen content and on evaluating process kinetics with and without catalyst addition. The high inherent reactivity of lignites and subbituminous coals, compared to coals of higher rank, make them the probable choice for use in steam gasification. An extensive matrix of char-steam gasification tests was performed in a laboratory-scale thermogravimetric analyzer (TGA) at temperatures of 700/sup 0/, 750/sup 0/, and 800/sup 0/C. Four low-rank coals and one bituminous coal were included in the TGA test matrix. Catalysts screened in the study included K/sub 2/CO/sub 3/, Na/sub 2/CO/sub 3/, trona, nahcolite, sunflower hull ash, and lignite ash. Results showed uncatalyzed North Dakota and Texas lignites to be slightly more reactive than a Wyoming subbituminous coal, and 8 to 10 times more reactive than an Illinois bituminous coal. Several catalysts that substantially improved low-rank coal steam gasification rates included pure and mineral (trona and nahcolite) alkali carbonates. The reactivity observed when using trona and nahcolite to catalyze the steam gasification was the highest, at nearly 3.5 times that without catalysts. The use of these inexpensive, naturally-occurring alkalis as gasification catalysts may result in elimination of the need for catalyst recovery in the hydrogen-from-coal process, thereby simplifying operation and improving process economics. The study included evaluations of temperature and catalyst loading effects, coal and catalyst screening, and determinations of the apparent activation energies of the steam gasification reaction. 11 refs., 23 figs., 9 tabs.

Galegher, S.J.; Timpe, R.C.; Willson, W.G.; Farnum, S.A.

1986-06-01T23:59:59.000Z

119

Selecting the optimum coke pushing sequence  

SciTech Connect

The sequence of pushing coke ovens is one of the most important aspects of battery operation. The sequence must satisfy a number of technical and process conditions: (1) achieve maximum heating-wall life by avoiding destructive expansion pressure in freshly charged ovens and during pushing of the finished coke; (2) ensure uniform brickwork temperature and prevent overheating by compensating for the high thermal flux in freshly charged ovens due to accumulated heat in adjacent ovens that are in the second half of the coking cycle; (3) ensure the most favorable working conditions and safety for operating personnel; (4) provide additional opportunities for repair personnel to perform various types of work, such as replacing coke-machine rails, without interrupting coal production; (5) perform the maximum number of coke-machine operations simultaneously: pushing, charging, and cleaning doors, frames, and standpipe elbows; and (6) reduce electricity consumption by minimizing idle travel of coke machines.

V.T. Krivoshein; A.V. Makarov [ZAO Trest Koksokhimmontazh (Russian Federation)

2007-01-15T23:59:59.000Z

120

REDUCING POWER PRODUCTION COSTS BY UTILIZING PETROLEUM COKE  

Science Conference Proceedings (OSTI)

Petroleum coke, a byproduct of the petroleum-refining process, is an attractive primary or supplemental fuel for power production primarily because of a progressive and predictable increase in the production volumes of petroleum coke (1, 2). Petroleum coke is most commonly blended with coal in proportions suitable to meet sulfur emission compliance. Petroleum coke is generally less reactive than coal; therefore, the cofiring of petroleum coke with coal typically improves ignition, flame stability, and carbon loss relative to the combustion of petroleum coke alone. Although petroleum coke is a desirable fuel for producing relatively inexpensive electrical power, concerns about the effects of petroleum coke blending on combustion and pollution control processes exist in the coal-fired utility industry (3). The Energy & Environmental Research Center (EERC) completed a 2-year technical assessment of petroleum coke as a supplemental fuel. A survey questionnaire was sent to seven electric utility companies that are currently cofiring coal and petroleum coke in an effort to solicit specific suggestions on research needs and fuel selections. An example of the letter and survey questionnaire is presented in Appendix A. Interest was expressed by most utilities in evaluating the effects of petroleum coke blending on grindability, combustion reactivity, fouling, slagging, and fly ash emissions control. Unexpectedly, concern over corrosion was not expressed by the utilities contacted. Although all seven utilities responded to the question, only two utilities, Northern States Power Company (NSP) and Ameren, sent fuels to the EERC for evaluation. Both utilities sent subbituminous coals from the Power River Basin and petroleum shot coke samples. Petroleum shot coke is produced unintentionally during operational upsets in the petroleum refining process. This report evaluates the effects of petroleum shot coke blending on grindability, fuel reactivity, fouling/slagging, and electrostatic precipitator (ESP) fly ash collection efficiency.

Kevin C. Galbreath; Donald L. Toman; Christopher J. Zygarlicke

1999-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Effect of coal rank and process conditions on temperature distribution in a liquefaction reactor  

SciTech Connect

The temperature distribution in a liquefaction reactor in the integrated TSL process is studied. The effects of gas and slurry superficial velocities, process solvent characteristics, reactor length, and catalyst sulfiding agent on the exotherm and temperature difference in the reactor are studied. A substantial temperature difference is observed with subbituminous coal as compared with bituminous coal, at comparable reactor conditions. Some of the factors that are believed to have contributed to the large exotherm and temperature difference in the reactor are slow kinetics and high reaction heat for subbituminous coal conversion and pyrrhotite catalysis.

Nalitham, R.V.; Moniz, M.

1986-04-01T23:59:59.000Z

122

Advanced Concepts in Slurry-Fed Low-Rank Coal Gasification  

Science Conference Proceedings (OSTI)

After an initial scouting study (described in Electric Power Research Institute [EPRI] Technical Update 1014432) revealed that using liquid CO2 in place of water in coal slurries could have several beneficial effects on integrated-gasificationcombined-cycles (IGCCs) employing CO2 capture, EPRI's Program on Technology Innovation funded additional work on this subject. This report summarizes the results of rheological testing performed with slurries made from liquid CO2 and two types of subbituminous coal ...

2008-09-14T23:59:59.000Z

123

Giprokoks proposals for improvement in air quality at coke battery 1A of Radlin coke plant  

SciTech Connect

Coke battery 1A, which uses rammed batch, has gone into production at Radlin coke plant (Poland), on the basis of Giprokoks designs. Up-to-date dust-trapping methods are used for the first time within the aspiration systems in the coal-preparation shop and in improving dust collection within the production buildings.

T.F. Trembach; A.G. Klimenko [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

124

Investigation of feasibility of injecting power plant waste gases for enhanced coalbed methane recovery from low rank coals in Texas  

E-Print Network (OSTI)

Greenhouse gases such as carbon dioxide (CO2) may be to blame for a gradual rise in the average global temperature. The state of Texas emits more CO2 than any other state in the U.S., and a large fraction of emissions are from point sources such as power plants. CO2 emissions can be offset by sequestration of produced CO2 in natural reservoirs such as coal seams, which may initially contain methane. Production of coalbed methane can be enhanced through CO2 injection, providing an opportunity to offset the rather high cost of sequestration. Texas has large coal resources. Although they have been studied there is not enough information available on these coals to reliably predict coalbed methane production and CO2 sequestration potential. The goal of the work was to determine if sequestration of CO2 in low rank coals is an economically feasible option for CO2 emissions reduction. Additionally, reasonable CO2 injection and methane production rates were to be estimated, and the importance of different reservoir parameters investigated. A data set was compiled for use in simulating the injection of CO2 for enhanced coalbed methane production from Texas coals. Simulation showed that Texas coals could potentially produce commercial volumes of methane if production is enhanced by CO2 injection. The efficiency of the CO2 in sweeping the methane from the reservoir is very high, resulting in high recovery factors and CO2 storage. The simulation work also showed that certain reservoir parameters, such as Langmuir volumes for CO2 and methane, coal seam permeability, and Langmuir pressure, need to be determined more accurately. An economic model of Texas coalbed methane operations was built. Production and injection activities were consistent with simulation results. The economic model showed that CO2 sequestration for enhanced coalbed methane recovery is not commercially feasible at this time because of the extremely high cost of separating, capturing, and compressing the CO2. However, should government mandated carbon sequestration credits or a CO2 emissions tax on the order of $10/ton become a reality, CO2 sequestration projects could become economic at gas prices of $4/Mscf.

Saugier, Luke Duncan

2003-08-01T23:59:59.000Z

125

Humic substances and nitrogen-containing compounds from low rank brown coals  

SciTech Connect

Coal is one of the sources of nitrogen-containing compounds (NCCs). Recovery of NCCs from brown coals in high yield was carried out from tars of stepwise semicoking of brown coals. Humic acids have been shown to contain many types of nitrogen compounds. Humic acids are thought to be complex aromatic macromolecules with amino acids, amino sugars, peptides, and aliphatic compounds that are involved in the linkages between the aromatic groups. Humic acids extracted from peats, brown coals, and lignites, are characterized using different techniques. Humic substances (HSs) have several known benefits to agriculture. The properties of humic substances vary from source to source, because they are heterogeneous mixtures of biochemical degradation products from plant and animal residues, and synthesis activities of microorganisms. HSs have been considered to be a significant floculant in surface water filtration plants for the production of drinking water as well as the processing of water. HSs are produced from chemical and biological degradation of plant and animal residues and from synthetic activities of microorganisms.

Demirbas, A.; Kar, Y.; Deveci, H. [Selcuk University, Konya (Turkey). Department of Chemical Engineering

2006-03-15T23:59:59.000Z

126

Proximate analysis of coal  

Science Conference Proceedings (OSTI)

This lab experiment illustrates the use of thermogravimetric analysis (TGA) to perform proximate analysis on a series of coal samples of different rank. Peat and coke are also examined. A total of four exercises are described. These are dry exercises as students interpret previously recorded scans. The weight percent moisture, volatile matter, fixed carbon, and ash content are determined for each sample and comparisons are made. Proximate analysis is performed on a coal sample from a local electric utility. From the weight percent sulfur found in the coal (determined by a separate procedure the Eschka method) and the ash content, students calculate the quantity of sulfur dioxide emissions and ash produced annually by a large coal-fired electric power plant.

Donahue, C.J.; Rais, E.A. [University of Michigan, Dearborn, MI (USA)

2009-02-15T23:59:59.000Z

127

Petroleum Coke VBD  

Science Conference Proceedings (OSTI)

Mar 1, 2011 ... Electrode Technology for Aluminium Production: Petroleum Coke VBD ... of Calcined Petroleum Coke: Jignesh Panchal1; Mark Wyborney1; ...

128

Effects of metal cations present naturally in coal on the fate of coal-bound nitrogen in the fixed-bed pyrolysis of 25 coals with different ranks: correlation between inherent Fe cations and N{sub 2} formation from low-rank coals  

Science Conference Proceedings (OSTI)

The fate of coal-N in the fixed-bed pyrolysis of 25 coals with 62-81 wt % (daf) C has been studied with a quartz reactor at 1000 C under ambient pressure to examine the effects of metal cations present naturally in these coals on the partitioning of coal-N into N{sub 2}, NH{sub 3}, HCN, tar-N, and char-N. Nitrogen mass balances for all runs fall within the reasonable range of 100 {+-} 5%, and N{sub 2} is the predominant product for all of the coals. As the N{sub 2} yield increases, the sum of NH{sub 3}, HCN, and tar-N is unchanged significantly, whereas the char-N yield decreases almost linearly, showing that most of N{sub 2} originates from char-N. When eight kinds of inherent metals, such as Na, Mg, Al, Si, K, Ca, Fe, and Ti, are determined by the conventional method and related with the N{sub 2} yield, there exists a strong, direct correlation between the Fe content and N{sub 2} formation for low-rank coals with less than 75 wt % (daf) C. Transmission electron microscopy coupled with an energy-dispersive analysis of X-rays (TEM-EDAX) measurements after pyrolysis at 1000{sup o}C of a German brown coal, which provides the highest N{sub 2} yield of about 60%, reveal the existence of lamella structures because of graphitized carbon as well as nanoscale Fe particles with different sizes and shapes. The mechanism for conversion reactions of char-N to N{sub 2} is discussed in terms of the catalysis by nanoparticles of metallic Fe formed from inherent Fe cations. 34 refs., 18 figs., 1 tab.

Yasuo Ohtsuka; Zhiheng Wu [Tohoku University, Sendai (Japan). Research Center of Sustainable Materials Engineering

2009-09-15T23:59:59.000Z

129

U.S. Energy Information Administration | Annual Coal Distribution...  

Gasoline and Diesel Fuel Update (EIA)

State, 2012 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke)...

130

U.S. Energy Information Administration | Annual Coal Distribution...  

U.S. Energy Information Administration (EIA) Indexed Site

by Origin State, 2012 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke)...

131

U.S. Energy Information Administration | Quarterly Coal Distribution...  

U.S. Energy Information Administration (EIA) Indexed Site

3rd Quarter 2013 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke)...

132

Coal rank distribution within the Bluesky-Gething stratigraphic horizon of Northeast B.C  

E-Print Network (OSTI)

The top of the Gething Formation is one of the more important formational picks routinely performed by the oil and gas industry during their exploratory and development drilling as this horizon is very c:ontinuous through northeastern British Columbia and much of northern Alberta. The name Bluesky is given to the rock unit which occupies this stratigraphic level, namely a sandstone-conglomerate unit of marine origin which separates the continental coal measures of the Gething Formation from thc overlying marine shales of the Moosebar Formation (see Fig. 32). The Bluesky is commonly glauconitic.and has a variable thickness (0 to 50 metres1 over relatively short distances and most likely represents shoreline deposition of the rapidly transgressing Clearwater Sea from the north. The Bluesky-Gething is an important petroleum producer in the Fort St. John area. MOOSEBAR FM

R. H. Karst; G. V. White; Gethlng Fm

1979-01-01T23:59:59.000Z

133

Coke Gasification - A Solution to Excess Coke Capacity and High Energy Costs  

E-Print Network (OSTI)

United States crude slate is becoming heavier and generally higher in sulfur. At the same time demand of distillate products is increasing. Refiners are reworking their plans to include resid conversion via coking and approximately 230,000 BPD of new coking capacity is either under construction or announced. Even if 50 percent of the coke produced is exported, there will be an excess capacity of coke selling at less than $30/ton depending upon the sulfur content. This coke can be gasified effectively to produce medium-Btu (300 Btu/scf) gas which, in turn, can fuel the refinery furnaces to replace natural gas. Coke gasification should prove economical with natural gas price decontrol and the average price projected to rise to over $14.0 per million Btu in 1990. The paper will discuss three gasifiers - Gesellschaft fur Kohle-Technologie Gmbh (GKT), Texaco and Westinghouse which may be used for the production of medium-Btu gas from coke. The design parameters, which for coke gasification may be different from coal gasification because of the difference in physical and chemical characteristics of coke and coal, will be evaluated. Conceptual design will be performed based upon normal fuel requirements of about 20 billion Btu per day for a typical 50,000 BPD refinery. Adaptability of coke derived gas to refinery fuel systems will be discussed in terms of flame temperatures, flue gas volumes, derating and required furnace modifications. Estimates of capital and operating costs will be obtained to calculate the gas cost using the new tax laws. Finally, the GKT gasifier will be compared to the developing Texaco and Westinghouse gasifiers to assess the effect of second generation gasifiers on the economics of coke gasification.

Patel, S. S.

1982-01-01T23:59:59.000Z

134

Investigation of bonding mechanism of coking on semi-coke from lignite with pitch and tar  

SciTech Connect

In coking, the bonding ability of inert macerals by reactive macerals is dependent on various parameters and also is related to the wettability of the inert macerals. In this study, the effect of carbonization temperature on the wettability of semi-cokes produced at various temperatures has been investigated. Soma and Yatagan semicokes represent inert macerals, and pitch was used as a reactive structure in the experiments. The briquetted pitch blocks were located on the semi-cokes and heated from the softening temperature of pitch (60{sup o}C) to 140{sup o}C to observe the wettability. In addition, liquid tar was also used to determine the wettability of semi-cokes. From the standpoint of wettability, the temperature of 900{sup o}C was determined to be the critical point for coke produced from sub-bituminous coals. 15 refs., 6 figs., 2 tabs.

Vedat Arslan [Dokuz Eylul University, Izmir (Turkey). Engineering Faculty

2006-10-15T23:59:59.000Z

135

Coal - Data - U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

Find statistics on coal production, consumption, exports, imports, stocks, Find statistics on coal production, consumption, exports, imports, stocks, mining, and prices. + EXPAND ALL Summary Additional formats Coal overview: PDF CSV XLS Monthly PDF XLS Annual Coke overview PDF XLS Coal-fired power plants Existing generating units in the U.S. by state, company and plant 2011 2010 2009 2008 2007 2006 2005 2004 2003 Go Prices Additional formats Weekly spot prices (Coal News and Markets) Coal futures near-month contract final settlement price (weekly NYMEX) Average sales price: PDF XLSBy state and mine type PDF XLSBy state and disposition PDF XLSBy state and underground mining method PDF XLSBy state, county, and number of mines PDF XLSBy state and coal rank PDF XLSBy mine production range and mine type Average consumer prices by end use sector, Census division, and state,

136

Analytical input-output and supply chain study of China's coke and steel sectors; Analytical I/O and supply chain study of China's coke and steel sectors.  

E-Print Network (OSTI)

??I design an input-output model to investigate the energy supply chain of coal-coke-steel in China. To study the demand, supply, and energy-intensity issues for coal… (more)

Li, Yu, 1976-

2004-01-01T23:59:59.000Z

137

Innovative coke oven gas cleaning system for retrofit applications: Environmental Monitoring Program. Volume 3, Appendix sections 8--14: Baseline Sampling Program report  

Science Conference Proceedings (OSTI)

This report contains no text. It consists entirely of numerical data: Coke oven wastewater treatment performance; Ammonia still effluents to equalization tank; Stack gas analysis of coke oven batteries; CoaL consumption; Coke production; Supplemental OSHA employee exposure monitoring(hydrocarbons,ammonia, hydrogen sulfide); operating data; chemical products and coke oven gas production.

Stuart, L.M.

1994-05-27T23:59:59.000Z

138

Method for reducing coke oven carbonization pressure  

SciTech Connect

A method of reducing the carbonization pressure in the coking of coal is provided which comprises randomly dispersing flakes through the coal, said flakes formed of a material that does not pass through a plastic phase such as pressed sawdust wherein the flakes have a thickness of between about 1/8 '' and about 3/4 '' and a length and width of between about 1'' and about 5''.

Perch, M.

1981-04-28T23:59:59.000Z

139

Coking Coal Import Costs - EIA  

Gasoline and Diesel Fuel Update (EIA)

Import Costs for Selected Countries Import Costs for Selected Countries U.S. Dollars per Metric Ton1 (Average Unit Value, CIF2) Country 2001 2002 2003 2004 2005 2006 2007 2008 2009 Belgium 48.67 46.59 49.25 78.98 108.68 126.85 120.51 163.26 NA France 52.47 60.26 62.05 75.46 109.69 133.48 124.63 212.51 NA Germany 51.30 59.53 64.00 74.74 113.48 135.72 133.45 182.72 NA Italy 55.48 57.67 60.39 77.24 103.02 112.05 118.05 118.97 NA Japan 41.13 42.14 41.73 61.40 88.80 93.10 88.43 184.13 NA Netherlands 55.37 55.55 63.00 78.99 104.06 125.70 125.84 187.06 NA Spain 52.32 57.10 60.44 79.30 116.50 134.81 124.87 211.23 NA United Kingdom 53.14 56.81 57.34 77.73 116.05 128.51 120.24 187.79 NA 1To convert U.S. dollars per metric ton to U.S. dollars per short ton

140

Analytical input-output and supply chain study of China's coke and steel sectors  

E-Print Network (OSTI)

I design an input-output model to investigate the energy supply chain of coal-coke-steel in China. To study the demand, supply, and energy-intensity issues for coal and coke from a macroeconomic perspective, I apply the ...

Li, Yu, 1976-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Chemicals from coal  

Science Conference Proceedings (OSTI)

This chapter contains sections titled: Chemicals from Coke Oven Distillate; The Fischer-Tropsch Reaction; Coal Hydrogenation; Substitute Natural Gas (SNG); Synthesis Gas Technology; Calcium Carbide; Coal and the Environment; and Notes and References

Harold A. Wittcoff; Bryan G. Reuben; Jeffrey S. Plotkin

2004-12-01T23:59:59.000Z

142

Hg and Se capture and fly ash carbons from combustion of complex pulverized feed blends mainly of anthracitic coal rank in Spanish power plants  

Science Conference Proceedings (OSTI)

In this work, the petrology and chemistry of fly ashes produced in a Spanish power plant from the combustion of complex pulverized feed blends made up of anthracitic/meta-anthracitic coals, petroleum, and natural coke are investigated. It was found that the behavior of fly ash carbons derived from anthracitic coals follows relatively similar patterns to those established for the carbons from the combustion of bituminous coals. Fly ashes were sampled in eight hoppers from two electrostatic precipitator (ESP) rows. The characterization of the raw ashes and their five sieved fractions (from {gt}150 to {lt}25 {mu}m) showed that glassy material, quartz, oxides, and spinels in different proportions are the main inorganic components. As for the organic fraction, the dominant fly ash carbons are anisotropic carbons, mainly unburned carbons derived from anthracitic vitrinite. The concentration of Se and Hg increased in ashes of the second ESP row, this increase being related to the higher proportion of anisotropic unburned carbons, particularly those largely derived from anthracitic vitrinite in the cooler ashes of the ESP (second row) and also related to the decrease in the flue gas temperature. This suggests that the flue gas temperature plays a major role in the concentration of mercury for similar ratios of unburned carbons. It was also found that Hg is highly concentrated in the medium-coarser fractions of the fly ashes ({gt} 45 {mu}m), there being a positive relationship between the amount of these carbons, which are apparently little modified during the combustion process, in the medium-coarse fractions of the ashes and the Hg retention. According to the results obtained, further research on this type of fly ash could be highly productive. 28 refs., 10 figs., 8 tabs.

I. Surez-Ruiz; J.C. Hower; G.A. Thomas [Instituto Nacional del Carbon (INCAR-CSIC), Oviedo (Spain)

2007-01-15T23:59:59.000Z

143

PressurePressure Indiana Coal Characteristics  

E-Print Network (OSTI)

TimeTime PressurePressure · Indiana Coal Characteristics · Indiana Coals for Coke · CoalTransportation in Indiana · Coal Slurry Ponds Evaluation · Site Selection for Coal Gasification · Coal-To-Liquids Study, CTL · Indiana Coal Forecasting · Under-Ground Coal Gasification · Benefits of Oxyfuel Combustion · Economic

Fernández-Juricic, Esteban

144

Effects of polymerization and briquetting parameters on the tensile strength of briquettes formed from coal coke and aniline-formaldehyde resin  

SciTech Connect

In this work, the utilization of aniline (C{sub 6}H{sub 7}N) formaldehyde (HCHO) resins as a binding agent of coke briquetting was investigated. Aniline (AN) formaldehyde (F) resins are a family of thermoplastics synthesized by condensing AN and F in an acid solution exhibiting high dielectric strength. The tensile strength sharply increases as the ratio of F to AN from 0.5 to 1.6, and it reaches the highest values between 1.6 and 2.2 F/AN ratio; it then slightly decreases. The highest tensile strength of F-AN resin-coke briquette (23.66 MN/m{sup 2}) was obtained from the run with 1.5 of F/AN ratio by using (NH4){sub 2}S{sub 2}O{sub 8} catalyst at 310 K briquetting temperature. The tensile strength of F-AN resin-coke briquette slightly decreased with increasing the catalyst percent to 0.10%, and then it sharply decreased to zero with increasing the catalyst percent to 0.2%. The effect of pH on the tensile strength is irregular. As the pH of the mixture increases from 9.0 to 9.2, the tensile strength shows a sharp increase, and the curve reaches a plateau value between pH 9.3 and 9.9; then the tensile strength shows a slight increase after pH = 9.9.

Demirbas, A.; Simsek, T. [Selcuk University, Konya (Turkey)

2006-10-15T23:59:59.000Z

145

Predictors of plasticity in bituminous coals. Final technical report  

SciTech Connect

A group of 40 hvb coals, mostly from western Kentucky fields, has been examined with regard to ASTM Gieseler plastometric properties. Twenty-nine of these coals have also been studied over a range of temperatures by isothermal Gieseler plastometry. Raw Gieseler data provide melting and coking slopes and readily calculable fluidity spans. Maximum fluidity by slope intersection is a more consistent measure than observed maximum fluidity. Isothermal slopes and maximum fluidities follow Arrhenius temperature dependencies, with activation energies related systematically to fluid properties. These freshly sampled coals are also characterized by chemical, physical and petrographic criteria, by quantitative solvent extractions, by pyrolysis gas chromatography, by Fourier Transform infrared analysis of coals and extraction residues, by the HPLC analysis of coal extracts, and by optical microscopy of coals and Gieseler semi-coke residues. Multiple linear regression analysis yields three-term expressions which estimate maximum fluidities (both ASTM and isothermal) with R values of .90 to .92. Slopes and critical temperatures are similarly predictable. Plastometer experiments with selected coals under superatmospheric pressures show both melting slopes and maximum fluidities to be sharply increased, the latter by one to three orders of magnitude. Some suggestions are offered to accommodate this new information into the general body of knowledge concerning the phenomenon of plasticity in mid-ranked coals. 81 references, 28 figures, 40 tables.

Lloyd, W. G.; Reasoner, J. W.; Hower, J. C.; Yates, L. P.; Clark, C. P.; Davis, E.; Fitzpatrick, A.; Irefin, A.; Jiminez, A.; Jones, T. M.

1984-02-01T23:59:59.000Z

146

Economical Desulfurization of Petroleum Coke  

Science Conference Proceedings (OSTI)

Presentation Title, Economical Desulfurization of Petroleum Coke ... " Desulfurization of Petroleum Coke Beyond 1600'C" by Christopher A. Paul of Great Lakes ...

147

Impact of Alternative Fuels and Blends: Simple Tool for Ranking Coal and Blends Based on Slagging Potential  

Science Conference Proceedings (OSTI)

This report provides a summary of ongoing work to identify, develop, and validate advanced tools to assess the impact of fuel quality on boiler performance.BackgroundThe deposition of ash particles during the combustion of coal—or blends of coals—is one of the major issues associated with power companies’ lost generation. The ash deposition process, driven by accumulation of molten/sticky, sintered, or loosely condensed deposits on ...

2012-12-31T23:59:59.000Z

148

Integration of stripping of fines slurry in a coking and gasification process  

DOE Patents (OSTI)

In an integrated fluid coking and gasification process wherein a stream of fluidized solids is passed from a fluidized bed coking zone to a second fluidized bed and wherein entrained solid fines are recovered by a wet scrubbing process and wherein the resulting solids-liquid slurry is stripped to remove acidic gases, the stripped vapors of the stripping zone are sent to the gas cleanup stage of the gasification product gas. The improved stripping integration is particularly useful in the combination coal liquefaction process, fluid coking of bottoms of the coal liquefaction zone and gasification of the product coke.

DeGeorge, Charles W. (Chester, NJ)

1980-01-01T23:59:59.000Z

149

Selective mining and beneficiation at Grootegeluk coal mine Waterberg Coalfield, South Africa  

Science Conference Proceedings (OSTI)

Grootegeluk Coal Mine, situated in the Waterberg Coalfield in the Northern Province of South Africa, ranks among the largest open pit coal mines in the world in terms of run of mine tonnage. Commissioned in 1980 to provide steel producer Iscor with coking coal, Grootegeluk currently produces 53 Mt of coking coal per annum. At present Iscor consumes 1.2 Mt of coking coal while Matimba, the world's largest direct dry cooled PowerStation consumes an additional 12.6 Mt. Fine washing and screening plants currently beneficiate the run of mine feed from this multi-seam multi-product mine. Although the Waterberg Coalfield contains approximately 50% of South Africa's coal reserves, Grootegeluk is the only operating mine in this coalfield. The coal seams of the Waterberg Coalfield occur in the Volksrust and Vryheids formations of the Karoo Sequence. Numerous coal seams ranging from a few millimeters up to 8 meters occur over a stratigraphic thickness of at least 120 meters. These coal seams are grouped into eleven coal bearing zones that can be correlated across the coalfield. The coal- and coalbearing strata in the Waterberg are of late Paleozoic to early Mesozoic age. Coal from the Volksrust formation is autochthonous while the coal from the Vryheid formation is allochthonous. To ensure that sufficient geological and analytical data are obtained from exploration boreholes an extensive sampling procedure was established with washability data ranging from 1,35 to 2,20 g/cc. The analyses indicated that certain parts of the coalbearing strata is not suitable for the production of coking coal due to the high phosphorus content or the poor coking properties. This resulted in an open pit with 11 mining benches. The upper parts of the deposit is extracted by conventional shovel and truck operations while the coal seams of the lower part of the deposit are mined selectively with hydraulic shovels. At Grootegeluk down the hole geophysics (natural gamma) are used for grade control and also to quantify the effect of over- or undermining on the various mining benches. Reconciliation between the run of mine material dispatched to the various plants and their resulted yields/qualities are done regularly.

NONE

1999-07-01T23:59:59.000Z

150

Low-rank coal research annual report, July 1, 1989--June 30, 1990 including quarterly report, April--June 1990  

SciTech Connect

Research programs in the following areas are presented: control technology and coal preparation; advance research and technology development; combustion; liquefaction; and gasification. Sixteen projects are included. Selected items have been processed separately for inclusion in the Energy Science and Technology Database.

1990-11-01T23:59:59.000Z

151

Cost and Performance Comparison Baseline for Fossil Energy Plants, Volume 3 Executive Summary: Low Rank Coal and Natural Gas to Electricity  

NLE Websites -- All DOE Office Websites (Extended Search)

Baseline Baseline for Fossil Energy Plants Volume 3 Executive Summary: Low Rank Coal and Natural Gas to Electricity September 2011 DOE/NETL-2010/1399 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring

152

Coal....  

U.S. Energy Information Administration (EIA)

DOE EIA WEEKLY COAL ... Coal Prices and Earnings (updated April 28, 2004) Spot coal prices in the East rose steadily since Labor Day 2003, with rapid escalations ...

153

Coal....  

U.S. Energy Information Administration (EIA)

DOE EIA WEEKLY COAL ... Coal Prices and Earnings (updated September 26) The average spot prices for reported coal purchases rose once again ...

154

Coal....  

U.S. Energy Information Administration (EIA)

Coal Prices and Earnings (updated August 12) According to Platts Coal Outlook’s Weekly Price Survey (August 11), the ...

155

Coal....  

U.S. Energy Information Administration (EIA)

Coal Prices and Earnings (updated September 2) The average spot prices for coal traded last week were relatively ...

156

Innovative coke oven gas cleaning system for retrofit applications  

DOE Green Energy (OSTI)

The coke plant at the Sparrows Point Plant consist of three coke oven batteries and two coal chemical plants. The by-product coke oven gas (COG) consists primarily of hydrogen, methane, carbon monoxide, nitrogen and contaminants consisting of tars, light oils (benzene, toluene, and xylene) hydrogen sulfide, ammonia, water vapor and other hydrocarbons. This raw coke oven gas needs to be cleaned of most of its contaminants before it can be used as a fuel at other operations at the Sparrows Point Plant. In response to environmental concerns, BSC decided to replace much of the existing coke oven gas treatment facilities in the two coal chemical Plants (A and B) with a group of technologies consisting of: Secondary Cooling of the Coke oven Gas; Hydrogen Sulfide Removal; Ammonia Removal; Deacification of Acid Gases Removed; Ammonia Distillation and Destruction; and, Sulfur Recovery. This combination of technologies will replace the existing ammonia removal system, the final coolers, hydrogen sulfide removal system and the sulfur recovery system. The existing wastewater treatment, tar recovery and one of the three light oil recovery systems will continue to be used to support the new innovative combination of COG treatment technologies.

Not Available

1992-08-24T23:59:59.000Z

157

Pitch Production Using Solvent Extraction of Coal: Suitability as Carbon Anode Precursor.  

E-Print Network (OSTI)

??Albertan coal has been used to produce extracts as precursor for production of anode coke. Coal extractability was studied using digestion with Tetralin in a… (more)

Mohammad Ali Pour, Mehdi

2009-01-01T23:59:59.000Z

158

Table 16. U.S. Coke Exports  

U.S. Energy Information Administration (EIA) Indexed Site

U.S. Coke Exports U.S. Coke Exports (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 16. U.S. Coke Exports (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Continent and Country of Destination April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change North America Total 162,796 79,217 201,795 242,013 340,944 -29.0 Canada* 73,859 17,837 112,348 91,696 161,596 -43.3 Mexico 88,535 60,517 86,721 149,052 176,163 -15.4 Other** 402 863 2,726 1,265 3,185 -60.3 South America Total 223 217 591 440 1,158 -62.0 Other** 223 217 591 440 1,158 -62.0 Europe Total 48,972 59,197 - 108,169 6 NM Other** 347 11,743 - 12,090 - - United Kingdom 48,625 47,454 - 96,079 6 NM Asia Total 317 553 633 870 4,778

159

Table 21. U.S. Coke Imports  

U.S. Energy Information Administration (EIA) Indexed Site

U.S. Coke Imports U.S. Coke Imports (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 21. U.S. Coke Imports (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Continent and Country of Origin April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change North America Total 10,284 2,293 159,462 12,577 183,712 -93.2 Canada 3,009 2,293 159,462 5,302 183,712 -97.1 Panama 7,275 - - 7,275 - - South America Total 25,267 13,030 88,424 38,297 106,612 -64.1 Brazil - - 78,595 - 78,595 - Colombia 25,267 13,030 9,829 38,297 28,017 36.7 Europe Total 6,044 40,281 165,027 46,325 485,791 -90.5 Czech Republic - 170 - 170 - - Spain 363 - - 363 - - Ukraine 5,681 40,111 5,047 45,792 53,543 -14.5 United Kingdom

160

Met coke world summit 2005  

SciTech Connect

Papers are presented under the following session headings: industry overview and market outlook; coke in the Americas; the global coke industry; and new developments. All the papers (except one) only consist of a copy of the overheads/viewgraphs.

NONE

2005-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

CARBON TECHNOLOGY: I: Petroleum Coke  

Science Conference Proceedings (OSTI)

CARBON TECHNOLOGY: Session I: Petroleum Coke. Sponsored by: LMD Aluminum Committee Program Organizer: Jean-Claude Thomas , Aluminium ...

162

Energy and environmental research emphasizing low-rank coal -- Task 3.10, Gas separation and hot-gas cleanup  

DOE Green Energy (OSTI)

Catalytic gasification of coal to produce H{sub 2}-, CO-, and CH{sub 4}-rich mixtures of gases for consumption in molten carbonate fuel cells is currently under development; however, to optimize the fuel cell performance and extend its operating life, it is desired to separate as much of the inert components (i.e., CO{sub 2} and N{sub 2}) and impurities (i.e., H{sub 2}S and NH{sub 3}) as possible from the fuel gas before it enters the fuel cell. In addition, the economics of the integrated gasification combined cycle (IGCC) can be improved by separating as much of the hydrogen as possible from the fuel, since hydrogen is a high-value product. Researchers at the Energy and Environmental Research Center (EERC) and Bend Research, Inc., investigated pressure-driven membranes as a method for accomplishing this gas separation and hot-gas cleanup. These membranes are operated at temperatures as high as 800 C and at pressures up to 300 psig. They have very small pore sizes that separate the undesirable gases by operating in the Knudsen diffusion region of mass transport or in the molecular sieving region of mass transport phenomena. In addition, H{sub 2} separation through a palladium metal membrane proceeds via a solution-diffusion mechanism for atomic hydrogen. This allows the membranes to exhibit extremely high selectivity for hydrogen separation. Specific questions to be answered in this project include: what are the effects of membrane properties (i.e., surface area, pore size, and coating thickness) on permeability and selectivity of the desired gases; what are the effects of operating conditions (i.e., temperature, pressure, and flow rate) on permeability and selectivity; what are the effects of impurities (i.e., small particulate, H{sub 2}S, HCl, NH{sub 3}, etc.) on membrane performance?

Swanson, M.L.

1995-08-01T23:59:59.000Z

163

Coal....  

U.S. Energy Information Administration (EIA)

DOE EIA WEEKLY COAL ... Coal Prices and Earnings (updated July 7, 2004) In the trading week ended July 2, the average spot coal prices tracked by EIA were mixed.

164

ENERGY UTILIZATION AND ENVIRONMENTAL CONTROL TECHNOLOGIES IN THE COAL-ELECTRIC CYCLE  

E-Print Network (OSTI)

Quality Coke Through Coal Blending," Yu, A. T. , Coal Age,November 1, 1975, p. 42. "Coal Blending as a Means to Meetcommunication. "Coal-Blending Seminar," EPRI Journal,

Ferrell, G.C.

2010-01-01T23:59:59.000Z

165

Table 6. Coal production and number of mines by State and coal...  

U.S. Energy Information Administration (EIA) Indexed Site

Coal production and number of mines by State and coal rank, 2011" "(thousand short tons)" ,"Bituminous",,"Subbituminous",,"Lignite",,"Anthracite",,"Total" "Coal-Producing State and...

166

Coal liquefaction quenching process  

DOE Patents (OSTI)

There is described an improved coal liquefaction quenching process which prevents the formation of coke with a minimum reduction of thermal efficiency of the coal liquefaction process. In the process, the rapid cooling of the liquid/solid products of the coal liquefaction reaction is performed without the cooling of the associated vapor stream to thereby prevent formation of coke and the occurrence of retrograde reactions. The rapid cooling is achieved by recycling a subcooled portion of the liquid/solid mixture to the lower section of a phase separator that separates the vapor from the liquid/solid products leaving the coal reactor.

Thorogood, Robert M. (Macungie, PA); Yeh, Chung-Liang (Bethlehem, PA); Donath, Ernest E. (St. Croix, VI)

1983-01-01T23:59:59.000Z

167

Data accumulation on the methane potential of the coal beds of Colorado. Final report  

SciTech Connect

A two-year project was conducted to gather data that would assist in the evaluation of the methane potential of the coal beds of Colorado. It was found that a number of closed underground coal mines in the State had reported gassy conditions or had experienced fires and explosions of varied intensity and frequency. The majority of such occurrences have been in those areas characterized by coals of relatively low (i.e., below 31%) volatile matter (VM) content. The south half of the Raton Mesa coal region (Las Animas County) and the southeastern part of the Unita region (in Gunnison and Pitkin Counties) contain coals with the lowest percentages of VM, the gassiest producing mines, and the highest grade coking coal in the State. Five active mines in Pitkin County presently are emitting a total of over 8 million cu ft of methane per day. These mines produce the highest quality metallurgical-grade coal in the western US (high-volatile A and medium-volatile bituminous). The gassy coals in these two regions range from Late Cretaceous to Paleocene in age and usually occur in areas related to igneous activity of late Tertiary age. The VM percentages of Colorado coals can be used, with some caution, to determine their potential methane content. Additional desorption measurements and coal analyses are needed to more accurately predict the effects of rank and depth of occurrence on the methane content of coals in the State.

Fender, H. B.; Murray, D. K.

1978-03-31T23:59:59.000Z

168

Design and construction of coke battery 1A at Radlin coke plant, Poland  

Science Conference Proceedings (OSTI)

In the design and construction of coke battery 1A at Radlin coke plant (Poland), coking of rammed coke with a stationary system was employed for the first time. The coke batteries are grouped in blocks. Safety railings are provided on the coke and machine sides of the maintenance areas.

A.M. Kravchenko; D.P. Yarmoshik; V.B. Kamenyuka; G.E. Kos'kova; N.I. Shkol'naya; V.V. Derevich; A.S. Grankin [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

169

Influence of Coke Calcining Parameters on Petroleum Coke ... - TMS  

Science Conference Proceedings (OSTI)

Jan 1, 1985 ... TMS Student Member price: 0.00. Product In Stock. Description All physical and chemical properties of petroleum coke are determined by three ...

170

Combustion Behavior of Pulverized Coal Injection in Corex Melter ...  

Science Conference Proceedings (OSTI)

In order to increase the utilization of fine coal, reduce coke consumption and enhance the competitiveness of the technology, the combustion behavior of ...

171

Maximum Rate of Pulverized Coal Injection into Blast Furnace with ...  

Science Conference Proceedings (OSTI)

The pulverized coal consumption efficiency is determined by means of microscopic and chemical analysis. The carbon structure of coke fines in the blast furnace ...

172

U.S. Energy Information Administration | Annual Coal Distribution...  

Annual Energy Outlook 2012 (EIA)

because of independent rounding. Sources: Electric Power Sector: Form EIA-923, "Power Plant Operations Report;" Coke Plants: Form EIA-5, "Quarterly Coal Consumption and...

173

Coal - Analysis & Projections - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Average cost of metallurgical coal priced at coke plants and export docks; Archive. Thank You. We welcome your comments or suggestions (optional).

174

A Review of Hazardous Chemical Species Associated with CO2 Capture from Coal-Fired Power Plants and Their Potential Fate in CO2 Geologic Storage  

E-Print Network (OSTI)

from combustion and gasification of coal – an equilibriumHolysh, M. 2005. Coke Gasification: Advanced technology forfrom a Coal-Fired Gasification Plant. Final Report, December

Apps, J.A.

2006-01-01T23:59:59.000Z

175

Factors influencing coke gasification with carbon dioxide.  

E-Print Network (OSTI)

??Of all coke properties the influence of the catalytic mineral matter on reactivity of metallurgical cokes is least understood. There is limited information about the… (more)

Grigore, Mihaela

2007-01-01T23:59:59.000Z

176

Bethlehem Steel announces plans to control coke oven air and water pollution  

Science Conference Proceedings (OSTI)

Bethlehem Steel Corporation and the Maryland Department of the Environment have announced an agreement under which Bethlehem will spend an estimated $92-million at its Sparrows Points, Md., plant for technologically-advanced controls to further reduce air and water pollution, mainly from the plant's coke ovens. The two major systems include one to treat by-product coke oven gas and chemicals, and another to upgrade existing pushing emission controls on two older coke oven batteries. One of the new systems will replace most of the existing equipment that cleans gas and treats chemicals created by the coking process at the plant's three coke oven batteries. Because this system has the potential to greatly reduce sulfur dioxide and other pollutants, the United States Department of Energy (DOE) in September announced that its installation qualified for funding as part of the nationwide Innovative Clean Coal Technology Program.

Not Available

1989-08-01T23:59:59.000Z

177

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 1,040 18 80 - 1,138 Alabama River 668 - - - 668 Alabama Truck 52 164 223 - 438 Alabama Total 1,760 181 303 - 2,244 Colorado Railroad 600 - - - 600 Illinois River 203 - 13 - 217 Indiana River 180 - - - 180 Kentucky Railroad 465 - 10 - 475 Kentucky (West) Railroad 465 - 10 - 475 Utah Railroad 18 - - -

178

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 914 12 66 - 992 Alabama River 949 - - - 949 Alabama Truck 78 189 237 - 504 Alabama Total 1,941 201 303 - 2,445 Colorado Railroad 575 - - - 575 Illinois River 99 - - - 99 Indiana River 241 - - - 241 Kentucky Railroad 827 - 12 - 839 Kentucky (East) Railroad 76 - - - 76 Kentucky (West) Railroad

179

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 839 11 83 - 933 Alabama River 1,347 - - - 1,347 Alabama Truck 118 216 236 - 571 Alabama Total 2,304 227 320 - 2,850 Colorado Railroad 514 - - - 514 Illinois River 99 - - - 99 Indiana River 172 - - - 172 Kentucky Railroad 635 - 11 - 647 Kentucky (East) Railroad 45 - - - 45 Kentucky (West)

180

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 944 16 77 - 1,037 Alabama River 781 - - - 781 Alabama Truck 77 224 220 - 521 Alabama Total 1,802 240 298 - 2,340 Colorado Railroad 385 - - - 385 Illinois River 15 - - - 15 Indiana Railroad 1 - - - 1 Indiana River 350 - - - 350 Indiana Total 351 - - - 351 Kentucky Railroad 682 - 2 - 685 Kentucky (East)

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 907 10 59 - 975 Alabama River 903 - - - 903 Alabama Truck 150 144 253 - 546 Alabama Total 1,960 153 311 - 2,424 Colorado Railroad 640 - - - 640 Illinois River 123 - - - 123 Indiana River 312 - - - 312 Kentucky Railroad 622 - 36 - 658 Kentucky (East) Railroad 96 - 36 - 132 Kentucky (West)

182

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,896 182 327 - 2,405 Alabama Railroad 1,192 2 74 - 1,268 Alabama River 655 - - - 655 Alabama Truck 50 180 253 - 482 Colorado Total 468 - - - 468 Colorado Railroad 468 - - - 468 Illinois Total 90 - 26 - 116 Illinois River 90 - 26 - 116 Indiana Total 181 - - - 181 Indiana River 181 -

183

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

2 2 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2012 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,407 184 231 - 1,822 Alabama Railroad 801 9 49 - 859 Alabama River 519 - - - 519 Alabama Truck 87 175 182 - 444 Colorado Total 82 - - - 82 Colorado Railroad 82 - - - 82 Illinois Total 149 - 14 - 163 Illinois Railroad 44 - - - 44 Illinois River 105 - 14 - 119 Indiana Total 99 - - - 99

184

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 914 12 66 - 992 Alabama River 949 - - - 949 Alabama Truck 78 189 237 - 504 Alabama Total 1,941 201 303 - 2,445 Georgia Railroad 23 - - - 23 Georgia Truck s - - - s Georgia Total 23 - - - 23 Indiana Railroad - 115 - - 115 Indiana Truck - 71 - - 71 Indiana Total - 186 - - 186 Tennessee Railroad - - 1 - 1 Tennessee Truck

185

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,486 155 328 - 1,970 Alabama Railroad 1,020 - 75 - 1,095 Alabama River 417 - - - 417 Alabama Truck 49 155 253 - 458 Colorado Total 195 - - - 195 Colorado Railroad 195 - - - 195 Illinois Total 127 - 18 - 145 Illinois Railroad 20 - - - 20 Illinois River 107 - 18 - 125 Indiana Total

186

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

2 2 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2012 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,407 184 231 - 1,822 Alabama Railroad 801 9 49 - 859 Alabama River 519 - - - 519 Alabama Truck 87 175 182 - 444 Georgia Total s - s - s Georgia Truck s - s - s Indiana Total - 98 - - 98 Indiana Railroad - 98 - - 98 Kentucky Total - - 12 - 12 Kentucky Truck - - 12 - 12 Ohio Total - 30 - - 30 Ohio

187

By Coal Destination State  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,942 160 335 - 2,437 Alabama Railroad 1,149 - 57 - 1,206 Alabama River 741 - - - 741 Alabama Truck 52 160 278 - 490 Colorado Total 621 2 - - 623 Colorado Railroad 621 2 - - 623 Illinois Total 113 - 11 - 123 Illinois River 113 - 11 - 123 Indiana Total 265 - - - 265 Indiana Railroad

188

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,896 182 327 - 2,405 Alabama Railroad 1,192 2 74 - 1,268 Alabama River 655 - - - 655 Alabama Truck 50 180 253 - 482 Georgia Total s - - - s Georgia Truck s - - - s Indiana Total - 72 - - 72 Indiana Railroad - 72 - - 72 Tennessee Total - - 7 - 7 Tennessee Truck - - 7 - 7 Origin State Total 1,896

189

Converting Petroleum Coke to Electricity  

E-Print Network (OSTI)

Changes in oil refining technology and economics are driving refiners to utilize thermal processes to maximize the conversion of heavy crude oil components to clean products. Since the primary unit operation to accomplish this objective is the coking unit, more cokers are being built, and existing cokers are being operated to maximum capacity utilization. SRI recently completed an assignment for a refiner interested in converting the by-product fluid coke from his unit to electricity. This paper presents the operating history of US based plants converting petroleum coke to electricity, and presents generic economics for the conversion process utilizing three primary technologies available: conventional pulverized coke combustion, atmospheric fluidized bed combustion, and coke gasification combined cycle power production.

Pavone, A.

1992-04-01T23:59:59.000Z

190

West Virginia - Rankings - U.S. Energy Information Administration...  

U.S. Energy Information Administration (EIA) Indexed Site

Total Energy per Capita Prices Natural Gas Electricity Production Total Energy Crude Oil Natural Gas Coal Electricity Environment Carbon Dioxide Emissions More State Ranking...

191

Georgia Refinery Marketable Petroleum Coke Production Capacity ...  

U.S. Energy Information Administration (EIA)

Georgia Refinery Marketable Petroleum Coke Production Capacity as of January 1 (Barrels per Stream Day)

192

Minnesota Refinery Marketable Petroleum Coke Production ...  

U.S. Energy Information Administration (EIA)

Minnesota Refinery Marketable Petroleum Coke Production Capacity as of January 1 (Barrels per Stream Day)

193

Coking Coal Prices for Industry - EIA  

Gasoline and Diesel Fuel Update (EIA)

Prices for Industry for Selected Countries1 Prices for Industry for Selected Countries1 U.S. Dollars per Metric Ton2 Country 2001 2002 2003 2004 2005 2006 2007 2008 2009 Argentina NA NA NA NA NA 37.24 NA NA NA Austria NA NA NA NA NA NA NA NA NA Belgium 54.03 NA NA NA NA NA NA NA NA Brazil NA NA NA NA NA 106.77 NA NA NA Canada NA NA NA NA NA NA NA NA NA Chile NA NA NA NA NA 69.02 NA NA NA China NA 38.38 41.28 52.20 61.72 NA NA NA NA Chinese Taipei (Taiwan) - - - - - - - - - - - - - - - - - - Colombia NA NA NA NA NA 33.84 NA NA NA Costa Rica NA NA NA NA NA NA NA NA NA Cuba NA NA NA NA NA NA NA NA NA Czech Republic 51.37 61.04 C C C C C C C Denmark - - - - - - - - - - - - - - - - - -

194

Structure-Based Predictive Model for Coal Char Combustion  

Science Conference Proceedings (OSTI)

Progress was made this period on a number of separate experimental and modelling activities. At Brown, the models of carbon nanostructure evolution were expanded to consider high-rank materials with initial anisotropy. The report presents detailed results of Monte Carlo simulations with non-zero initial layer length and with statistically oriented initial states. The expanded simulations are now capable of describing the development of nanostructure during carbonization of most coals. Work next quarter will address the remaining challenge of isotropic coke-forming coals. Experiments at Brown yielded important data on the "memory loss" phenomenon in carbon annealing, and on the effect of mineral matter on high-temperature reactivity. The experimental aspects of the Brown work will be discussed in detail in the next report.

Christopher Hadad; Joseph Calo; Robert Essenhigh; Robert Hurt

1998-04-08T23:59:59.000Z

195

Coal - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

Coal-fired plants projected to continue as the largest source of U.S. electricity generation ... and average cost of metallurgical coal at coke plants and export docks.

196

New coke-sorting system at OAO Koks  

SciTech Connect

A new coke-sorting system has been introduced at OAO Koks. It differs from the existing system in that it has no bunkers for all-purpose coke but only bunkers for commercial coke. In using this system with coke from battery 4, the crushing of the coke on conveyer belts, at roller screens, and in the commercial-coke bunkers is studied. After installing braking elements in the coke path, their effectiveness in reducing coke disintegration and improving coke screening is investigated. The granulometric composition and strength of the commercial coke from coke battery 3, with the new coke-sorting system, is evaluated.

B.Kh. Bulaevskii; V.S. Shved; Yu.V. Kalimin; S.D. Filippov [OAO Koks, Kemerovo (Russian Federation)

2009-05-15T23:59:59.000Z

197

Experimental study of elastoplastic mechanical properties of coke drum materials.  

E-Print Network (OSTI)

??Coke drums are vertical pressure vessels used in the delayed coking process in petroleum refineries. Significant temperature variation during the delayed coking process causes the… (more)

Chen, Jie

2010-01-01T23:59:59.000Z

198

Estimating Coke and Pepsi's Price and Advertising Strategies  

E-Print Network (OSTI)

Strategy Distributions for Coke (First Quarter 1977) a)Paper No. 789 ESTIMATING COKE AND PEPSI'S PRICE ADVERTISINGEconomics July, 1998 Estimating Coke and Pepsi’s Price and

Golan, Amos; Karp, Larry S.; Perloff, Jeffrey M.

1998-01-01T23:59:59.000Z

199

Prediction of Calcined Coke Bulk Density - Programmaster.org  

Science Conference Proceedings (OSTI)

Due to changing green coke quality, a reliable forecast of the calcined coke VBD from small green coke samples is required. The VBD can be predicted from ...

200

Proceedings of the sixteenth biennial low-rank fuels symposium  

SciTech Connect

Low-rank coals represent a major energy resource for the world. The Low-Rank Fuels Symposium, building on the traditions established by the Lignite Symposium, focuses on the key opportunities for this resource. This conference offers a forum for leaders from industry, government, and academia to gather to share current information on the opportunities represented by low-rank coals. In the United States and throughout the world, the utility industry is the primary user of low-rank coals. As such, current experiences and future opportunities for new technologies in this industry were the primary focuses of the symposium.

Not Available

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Coke gasification costs, economics, and commercial applications  

Science Conference Proceedings (OSTI)

The disposition of petroleum coke remains a problem for modern high conversion refineries. Market uncertainty and the price for coke can prevent the implementation of otherwise attractive projects. The commercially proven Texaco Gasification Process remains an excellent option for clean, cost effective coke disposition as demonstrated by the new coke gasification units coming on-line and under design. Previous papers, have discussed the coke market and general economics of coke gasification. This paper updates the current market situation and economics, and provide more details on cost and performance based on recent studies for commercial plants.

Jahnke, F.C.; Falsetti, J.S.; Wilson, R.F. [Texaco, Inc., White Plains, NY (United States)

1996-12-01T23:59:59.000Z

202

By Coal Destination State  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report 2010 Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 7,906 821 1,242 - 9,969 Alabama Railroad 3,604 49 285 - 3,938 Alabama River 3,979 - - - 3,979 Alabama Truck 322 773 957 - 2,051 Colorado Total 2,113 - - - 2,113 Colorado Railroad 2,113 - - - 2,113 Illinois Total 336 - - - 336 Illinois River 336 - - - 336 Indiana Total 1,076

203

By Coal Origin State  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report 2010 Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 7,906 821 1,242 - 9,969 Alabama Railroad 3,604 49 285 - 3,938 Alabama River 3,979 - - - 3,979 Alabama Truck 322 773 957 - 2,051 Florida Total - - 15 - 15 Florida Railroad - - 11 - 11 Florida Truck - - 3 - 3 Georgia Total 196 - 15 - 211 Georgia Railroad 189 - 1 - 190 Georgia Truck

204

U.S. Imports of Petroleum Coke Marketable (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

Marketable Petroleum Coke Supply and Disposition; Petroleum Coke Imports from All Countries; U.S. Imports from All Countries ...

205

Table 17. Average Price of U.S. Coke Exports  

U.S. Energy Information Administration (EIA) Indexed Site

Average Price of U.S. Coke Exports Average Price of U.S. Coke Exports (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 17. Average Price of U.S. Coke Exports (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Continent and Country of Destination April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change North America Total 240.59 241.38 218.40 240.85 225.80 6.7 Canada* 147.49 330.47 243.04 183.08 286.56 -36.1 Mexico 316.57 211.63 189.12 273.97 171.71 59.6 Other** 612.42 485.63 134.48 525.92 135.04 289.5 South America Total 140.65 156.15 322.70 148.29 250.36 -40.8 Other** 140.65 156.15 322.70 148.29 250.36 -40.8 Europe Total 259.26 255.24 - 257.06 427.83 -39.9 Other**

206

Table 22. Average Price of U.S. Coke Imports  

U.S. Energy Information Administration (EIA) Indexed Site

Average Price of U.S. Coke Imports Average Price of U.S. Coke Imports (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 22. Average Price of U.S. Coke Imports (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Continent and Country of Origin April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change North America Total 263.21 252.66 353.05 261.29 356.01 -26.6 Canada 263.51 252.66 353.05 258.82 356.01 -27.3 Panama 263.09 - - 263.09 - - South America Total 196.86 194.14 175.88 195.94 181.01 8.2 Brazil - - 157.60 - 157.60 - Colombia 196.86 194.14 322.06 195.94 246.68 -20.6 Europe Total 181.55 232.13 385.65 225.53 384.96 -41.4 Czech Republic - 475.91 - 475.91 - - Spain 360.51

207

Problem of sludge formation in benzol division solar oil and ''carbonization'' in coke oven gas compressor systems  

Science Conference Proceedings (OSTI)

A discussion is presented on the problem and possible causes of sludge formation in the return solar oil in benzene recovery units and on the problem of deposits in the pipe systems after coke oven gas compressors. The possible entrainment of fine particles of coal charge in the solar oil was also discussed. Sedimentation of the sludge was recommended with daily removal of the settled sludge. A chemical analysis of the deposits in the piping system of the coke oven gas and the coal charge revealed that the deposits were not caused by entrained coal particles. (JMT)

Rezunenko, Y.I.

1982-01-01T23:59:59.000Z

208

Advanced Green Petroleum Coke Calcination In Electrothermal ...  

Science Conference Proceedings (OSTI)

Symposium, Fluidization Technologies for the Mineral, Materials, and Energy Industries. Presentation Title, Advanced Green Petroleum Coke Calcination In ...

209

Integrated coke, asphalt and jet fuel production process and apparatus  

DOE Patents (OSTI)

A process and apparatus for the production of coke, asphalt and jet fuel from a feed of fossil fuels containing volatile carbon compounds therein is disclosed. The process includes the steps of pyrolyzing the feed in an entrained bed pyrolyzing means, separating the volatile pyrolysis products from the solid pyrolysis products, removing at least some coke from the solid pyrolysis products, fractionating the volatile pyrolysis products to produce an overhead stream and a bottom stream which is useful as asphalt for road pavement, condensing the overhead stream to produce a condensed liquid fraction and a noncondensable, gaseous fraction, and removing water from the condensed liquid fraction to produce a jet fuel-containing product. The disclosed apparatus is useful for practicing the foregoing process. The process provides a useful method of mass producing these products from materials such as coal, oil shale and tar sands. 1 fig.

Shang, Jer Yu.

1989-10-17T23:59:59.000Z

210

Integrated coke, asphalt and jet fuel production process and apparatus  

DOE Patents (OSTI)

A process and apparatus for the production of coke, asphalt and jet fuel m a feed of fossil fuels containing volatile carbon compounds therein is disclosed. The process includes the steps of pyrolyzing the feed in an entrained bed pyrolyzing means, separating the volatile pyrolysis products from the solid pyrolysis products removing at least one coke from the solid pyrolysis products, fractionating the volatile pyrolysis products to produce an overhead stream and a bottom stream which is useful as asphalt for road pavement, condensing the overhead stream to produce a condensed liquid fraction and a noncondensable, gaseous fraction, and removing water from the condensed liquid fraction to produce a jet fuel-containing product. The disclosed apparatus is useful for practicing the foregoing process. the process provides a useful method of mass producing and jet fuels from materials such as coal, oil shale and tar sands.

Shang, Jer Y. (McLean, VA)

1991-01-01T23:59:59.000Z

211

Centrifuge treatment of coal tar  

SciTech Connect

New technology is required for the removal of water and heavy fractions from regular coal tar. Centrifuges offer the best option. Purification of coal tar by means of centrifuges at OAO NLMK permits the production of pitch coke or electrode pitch that complies with current standards.

L.A. Kazak; V.Z. Kaidalov; L.F. Syrova; O.S. Miroshnichenko; A.S. Minakov [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

212

Trends in the automation of coke production  

SciTech Connect

Up-to-date mathematical methods, such as correlation analysis and expert systems, are employed in creating a model of the coking process. Automatic coking-control systems developed by Giprokoks rule out human error. At an existing coke battery, after introducing automatic control, the heating-gas consumption is reduced by {>=}5%.

R.I. Rudyka; Y.E. Zingerman; K.G. Lavrov [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

213

Firing of pulverized solvent refined coal  

DOE Patents (OSTI)

An air-purged burner for the firing of pulverized solvent refined coal is constructed and operated such that the solvent refined coal can be fired without the coking thereof on the burner components. The air-purged burner is designed for the firing of pulverized solvent refined coal in a tangentially fired boiler.

Derbidge, T. Craig (Sunnyvale, CA); Mulholland, James A. (Chapel Hill, NC); Foster, Edward P. (Macungie, PA)

1986-01-01T23:59:59.000Z

214

Proposal of a novel multifunctional energy system for cogeneration of coke, hydrogen, and power - article no. 052001  

SciTech Connect

This paper proposes a novel multifunctional energy system (MES), which cogenerates coke, hydrogen, and power, through the use of coal and coke oven gas (COG). In this system, a new type of coke oven, firing coal instead of COG as heating resource for coking, is adopted. The COG rich in H{sub 2} is sent to a pressure swing adsorption (PSA) unit to separate about 80% of hydrogen first, and then the PSA purge gas is fed to a combined cycle as fuel. The new system combines the chemical processes and power generation system, along with the integration of chemical conversion and thermal energy utilization. In this manner, both the chemical energy of fuel and thermal energy can be used more effectively. With the same inputs of fuel and the same output of coking heat, the new system can produce about 65% more hydrogen than that of individual systems. As a result, the thermal efficiency of the new system is about 70%, and the exergy efficiency is about 66%. Compared with individual systems, the primary energy saving ratio can reach as high as 12.5%. Based on the graphical exergy analyses, we disclose that the integration of synthetic utilization of COG and coal plays a significant role in decreasing the exergy destruction of the MES system. The promising results obtained may lead to a clean coal technology that will utilize COG and coal more efficiently and economically.

Jin, H.G.; Sun, S.; Han, W.; Gao, L. [Chinese Academy of Sciences, Beijing (China)

2009-09-15T23:59:59.000Z

215

Gasification of Lignite Coal  

Science Conference Proceedings (OSTI)

This report on the gasification of lignite coal is presented in two parts. The first includes research into technology options for preparing low-rank fuels for gasification, gasifiers for converting the coal into synthesis gas, and technologies that may be used to convert synthesis gas into valuable chemical products. The second part focuses on performance and cost screening analyses for either Greenfield or retrofit gasification options fueled by low-rank lignite coal. The work was funded through Tailor...

2009-01-23T23:59:59.000Z

216

Energy and environmental research emphasizing low-rank coal: Task 7.2, Resource data evaluation. Topical report, July 1994--May 1995  

SciTech Connect

The Resource Data Evaluation subtask of the US Department of Energy (DOE) base program represents an Energy & Environmental Research Center (EERC) initiative to promote the integration of geographic information system (GIS) technologies with other ongoing and planned EERC research in the areas of resource utilization, remediation, land use planning, and regulatory and policy assessment. Significant demand for GIS-based information already exists for energy resource evaluation, interpretation of remote sensing data, environmental assessment at the state and local levels, and use in strategic planning. The objective of this task was to determine the appropriate platform and approach upon which to develop GIS applications for optimizing resource evaluation and integrating this information with related areas of interest. Activities associated with Task 7.2, Resource Data Evaluation, were conducted primarily during the first half of the project year. These activities included tasks associated with the development and implementation of GIS databases and construction of digitized files for research pertaining to energy studies. As previously noted, database design was undertaken for two EERC projects: 1) coal occurrence in Bowman and adjacent counties in the Fort Union Coal Region of southwestern North Dakota and 2) energy resource utilization concerns for selected sites in Alaska.

Hartman, J.H.

1995-06-01T23:59:59.000Z

217

EIA - Distribution of U.S. Coal by Destination  

U.S. Energy Information Administration (EIA) Indexed Site

Destination Destination Glossary Home > Coal> Distribution of U.S. Coal by Destination Distribution of U.S. Coal by Destination Release Date: January 2006 Next Release Date: 2006 Distribution of U.S Coal by Destination Domestic Distribution of U.S. Coal by Destination State, Consumer, Destination and Method of Transportation, 2004 (Thousand Short Tons) DESTINATION: ALASKA State of Origin by Method of Transportation Electricity Generation Coke Plants Industrial Plants (Except Coke) Residential and Commercial Total Alaska 460 - - 497 957 Railroad 256 - - 497 753 Truck 204 - - * 204 State Total 460 - - 497 957 Railroad 256 - - 497 753 Truck 204 - - * 204 EIA - Distribution of U.S. Coal by Destination

218

Comparison of the Potential Impacts of Petroleum Coke and Anthracite Culm Use  

E-Print Network (OSTI)

The primary feedstock for the proposed Gilberton Coal-to-Clean Fuels and Power Project would be low-cost anthracite culm, which is a locally abundant, previously discarded resource that could accommodate fuel requirements during the demonstration period. Culm reserves controlled by WMPI are estimated to be sufficient to supply the proposed facilities for about 15 years, or to supply both the proposed facilities and the existing Gilberton Power Plant for about 11 years. Based on the applicant’s proposal, the facilities would also be capable of using a blend of feedstock containing up to 25% petroleum coke. Petroleum coke is a high-sulfur, high-energy product having the appearance of coal. Oil refineries produce petroleum coke by heating and removing volatile organic compounds (VOCs) from the residue remaining after the refining process. This appendix compares some of the potential impacts of 100 % anthracite culm use with the potential impacts from using a blended feedstock of 75 % anthracite culm and 25 % petroleum coke. Topics considered include carbon dioxide emissions, air emissions of sulfur compounds and toxic substances, solid wastes and byproduct production, and increased truck traffic. Carbon Dioxide (CO2) Emissions Published values for potential CO2 emissions from anthracite and petroleum coke are very similar.

Gilberton Coal-to-clean Fuels

2007-01-01T23:59:59.000Z

219

Characterization of tuyere-level core-drill coke samples from blast furnace operation  

SciTech Connect

A suite of tuyere-level coke samples have been withdrawn from a working blast furnace during coal injection, using the core-drilling technique. The samples have been characterized by size exclusion chromatography (SEC), Fourier transform Raman spectroscopy (FT-RS), and X-ray powder diffraction (XRD) spectroscopy. The 1-methyl-2-pyrrolidinone (NMP) extracts of the cokes sampled from the 'bosh', the rear of the 'bird's nest', and the 'dead man' zones were found by SEC to contain heavy soot-like materials (ca. 10{sup 7}-10{sup 8} apparent mass units). In contrast, NMP extracts of cokes taken from the raceway and the front of the 'bird's nest' only contained a small amount of material of relatively lower apparent molecular mass (up to ca. 10{sup 5} u). Since the feed coke contained no materials extractable by the present method, the soot-like materials are thought to have formed during the reactions of volatile matter released from the injectant coal, probably via dehydrogenation and repolymerization of the tars. The Raman spectra of the NMP-extracted core-drilled coke samples showed variations reflecting their temperature histories. Area ratios of D-band to G-band decreased as the exposure temperature increased, while intensity ratios of D to G band and those of 2D to G bands increased with temperature. The graphitic (G), defect (D), and random (R) fractions of the carbon structure of the cokes were also derived from the Raman spectra. The R fractions decreased with increasing temperature, whereas G fractions increased, while the D fractions showed a more complex variation with temperature. These data appear to give clues regarding the graphitization mechanism of tuyere-level cokes in the blast furnace. 41 refs., 9 figs., 6 tabs.

S. Dong; N. Paterson; S.G. Kazarian; D.R. Dugwell; R. Kandiyoti [Imperial College London, London (United Kingdom). Department of Chemical Engineering

2007-12-15T23:59:59.000Z

220

Effect of thermal treatment on coke reactivity and catalytic iron mineralogy  

SciTech Connect

Iron minerals in coke can catalyze its gasification and may affect coke behavior in the blast furnace. The catalytic behavior of iron depends largely upon the nature of the iron-bearing minerals. To determine the mineralogical changes that iron could undergo in the blast furnace, cokes made from three coals containing iron present in different mineral forms (clays, carbonates, and pyrite) were examined. All coke samples were heat-treated in a horizontal furnace at 1373, 1573, and 1773 K and then gasified with CO{sub 2} at 1173 K in a fixed bed reactor (FBR). Coke mineralogy was characterized using quantitative X-ray diffraction (XRD) analysis of coke mineral matter prepared by low-temperature ashing (LTA) and field emission scanning electron microscopy combined with energy dispersive X-ray analysis (FESEM/EDS). The mineralogy of the three cokes was most notably distinguished by differing proportions of iron-bearing phases. During heat treatment and subsequent gasification, iron-containing minerals transformed to a range of minerals but predominantly iron-silicides and iron oxides, the relative amounts of which varied with heat treatment temperature and gasification conditions. The relationship between initial apparent reaction rate and the amount of catalytic iron minerals - pyrrhotite, metallic iron, and iron oxides - was linear and independent of heat treatment temperature at total catalyst levels below 1 wt %. The study showed that the coke reactivity decreased with increasing temperature of heat treatment due to decreased levels of catalytic iron minerals (largely due to formation of iron silicides) as well as increased ordering of the carbon structure. The study also showed that the importance of catalytic mineral matter in determining reactivity declines as gasification proceeds. 37 refs., 13 figs., 7 tabs.

Byong-chul Kim; Sushil Gupta; David French; Richard Sakurovs; Veena Sahajwalla [University of New South Wales, Sydney, NSW (Australia). Centre for Sustainable Materials Research and Technology

2009-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Case-study of a coal gasification-based energy supply system for China  

E-Print Network (OSTI)

for biogas or DME, so we assumed the same values for biogas as for coke oven gas (i.e., town gas coal, washed coal and coke, 75 % for petroleum products and town gas, and 90 % for heat. We also synthesis gas and elec- tricity, high-value-added chemicals, high-value-added fu- els for vehicles

222

An active carbon catalyst prevents coke formation from asphaltenes during the hydrocracking of vacuum residue  

SciTech Connect

Active carbons were prepared by the steam activation of a brown coal char. The active carbon with mesopores showed greater adsorption selectivity for asphaltenes. The active carbon was effective at suppressing coke formation, even with the high hydrocracking conversion of vacuum residue. The analysis of the change in the composition of saturates, aromatics, resins, and asphaltenes in the cracked residue with conversion demonstrated the ability of active carbon to restrict the transformation of asphaltenes to coke. The active carbon that was richer in mesopores was presumably more effective at providing adsorption sites for the hydrocarbon free-radicals generated initially during thermal cracking to prevent them from coupling and polycondensing.

Fukuyama, H.; Terai, S. [Toyo Engineering Corp., Chiba (Japan). Technological Research Center

2007-07-01T23:59:59.000Z

223

Study of Modified Semi-Coke on the Advanced Treatment of Coking ...  

Science Conference Proceedings (OSTI)

Mass of absorbent and absorption time had put much on the removal rate of oil in coke wastewater. The removal rate of oil in coke wastewater could be above ...

224

United States - Rankings - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA) Indexed Site

Rankings Rankings Additional State Rankings Consumption Total Energy per Capita Prices Natural Gas Electricity Environment Carbon Dioxide Emissions Expenditures Total Energy per Capita Production Total Energy Crude Oil Natural Gas Coal Electricity More State Ranking Tables › Notes & Sources Consumption Total Energy per Capita: EIA, State Energy Data System, Total Consumption Per Capita Expenditures Total Energy per Capita: EIA, State Energy Data System, Total Expenditures Per Capita Production Total Energy: EIA, State Energy Data System, Total Energy Production Crude Oil: EIA, Petroleum Supply Annual, Crude Oil Production Natural Gas: EIA, Natural Gas Annual, Natural Gas Gross Withdrawals and Production Coal: EIA, Annual Coal Report, Coal Production and Number of Mines by State

225

Characterization of Packing Ability of Coke Particles  

Science Conference Proceedings (OSTI)

VBD is conventionally used in anode industry to determine the required amount of pitch and fine coke. VBD may be achieved by dense particles while they do ...

226

Estimating Coke and Pepsi's price and advertising strategies  

E-Print Network (OSTI)

Working Paper No. 789 ESTIMATING COKE AND PEPSI’ PRICE S ANDand Advertising Strategies: Coke and Pepsi) by Amos Golan,Revised, March 1999 Estimating Coke and Pepsi’s Price and

Golan, Amos; Karp, Larry; Perloff, Jeffrey M.

1999-01-01T23:59:59.000Z

227

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 4th Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 944 16 77 - 1,037 Alabama River 781 - - - 781 Alabama Truck 77 224 220 - 521 Alabama Total 1,802 240 298 - 2,340 Florida Railroad - - 11 - 11 Georgia Railroad 52 - - - 52 Georgia Truck s - 5 - 5 Georgia Total 52 - 5 - 57 Indiana Railroad - 65 - - 65 Origin State Total 1,855 304 313 - 2,472 Railroad 996 81 89 - 1,165

228

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 907 10 59 - 975 Alabama River 903 - - - 903 Alabama Truck 150 144 253 - 546 Alabama Total 1,960 153 311 - 2,424 Florida Truck - - 3 - 3 Georgia Railroad 105 - 1 - 106 Georgia Truck s - 4 - 4 Georgia Total 105 - 5 - 110 Indiana Railroad - 106 - - 106 Tennessee Railroad - - 1 - 1 Origin State Total 2,065 259 321 - 2,644

229

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 3rd Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 839 11 83 - 933 Alabama River 1,347 - - - 1,347 Alabama Truck 118 216 236 - 571 Alabama Total 2,304 227 320 - 2,850 Georgia Railroad 9 - - - 9 Georgia Truck 7 - 5 - 12 Georgia Total 16 - 5 - 21 Indiana Railroad - 126 - - 126 Tennessee Truck - - 1 - 1 Origin State Total 2,320 353 325 - 2,998 Railroad 848 137 83 - 1,068

230

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 3rd Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,942 160 335 - 2,437 Alabama Railroad 1,149 - 57 - 1,206 Alabama River 741 - - - 741 Alabama Truck 52 160 278 - 490 Georgia Total s - 3 - 3 Georgia Truck s - 3 - 3 Ohio Total - 3 - - 3 Ohio River - 3 - - 3 Origin State Total 1,942 163 338 - 2,443 Railroad 1,149 - 57 - 1,206 River 741 3 - - 745 Truck 52 160

231

By Coal Origin State  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 1,040 18 80 - 1,138 Alabama River 668 - - - 668 Alabama Truck 52 164 223 - 438 Alabama Total 1,760 181 303 - 2,244 Georgia Truck s - 2 - 2 Indiana Railroad - 148 - - 148 Ohio Railroad - 25 - - 25 Ohio River - 18 - - 18 Ohio Total - 43 - - 43 Origin State Total 1,760 373 305 - 2,438 Railroad 1,040 191 80 - 1,311 River

232

Co-carbonization of two anthracites with a fat coal or two pitches  

SciTech Connect

The blends of two anthracite powders (YQ and JC) with a fat coal (C4) or a petroleum pitch (PP) or a coal tar pitch (CTP) in different proportions were co-carbonized at 3{sup o}C/min up to 1000{sup o}C in an experimental 1 kg coke oven. Coke yield, coke particulate size, coke micro-strength and coke cracking strength were measured respectively. Coke optical textures were watched under a microscope. The results show that as anthracite proportion increases, coke yields of all blends improve; > 0.8 mm lump coke yields of blends with CTP or PP decline slightly, blends with C4 drop heavily; coke microstrengths do not change sharply, and coke cracking strength of blends with C4 or PP decrease more than blends with CTP. C4 produces fine-grained mosaics, and two anthracites are mainly fusinite and fragments, PP is coarse-grained mosaics, and CTP is chiefly flow or domain textures. Independent optical textures were observed in cokes. There exist evident borders between the two contact optical textures which were produced by different components, and a few phenomena that domain or flow textures penetrating into fusinite appeared in the blends. It seems that CTP is the best adhesives for blending with anthracites for producing high quality cokes.

Shen, J.; Wang, Z.Z. [Taiyuan University of Technology, Taiyuan (China). College of Chemical Engineering & Technology

2006-04-15T23:59:59.000Z

233

Innovative coke oven gas cleaning system for retrofit applications  

Science Conference Proceedings (OSTI)

Bethlehem Steel Corporation (BSC), in conjunction with the Department of Energy (DOE) is conducting a Clean Coal Technology (CCT) project at its Sparrows Point, Maryland Coke Oven Plant. This project combines several existing technologies into an integrated system for removing impurities from Coke Oven Gas (COG) to make it an acceptable fuel. DOE is providing cost-sharing under a Cooperative Agreement with BSC. This Cooperative Agreement requires BSC to develop and conduct an Environmental Monitoring Plan (EMP) for the Clean Coal Technology project and to report the status of the EMP on a quarterly basis. This report is the third quarterly status report of the EMP. It covers the Environmental Monitoring Plan activities for the full year of 1991 from January 1, 1991 through December 31, 1991, including the forth quarter. See Sections 2, 3 and 4 for status reports of the Project Installation and Commissioning, the Environmental Monitoring activities and the Compliance Monitoring results for the period. Section 5 contains a list of Compliance Reports submitted to regulatory agencies during the period. The EMP describes in detail the environmental monitoring activities to be performed during the project execution. The purpose of the EMP is to: (1) document the extent of compliance of monitoring activities, i.e. those monitoring required to meet permit requirements, (2) confirm the specific impacts predicted in the National Environmental Policy Act documentation, and (3) establish an information base for the assessment of the environmental performance of the technology demonstrated by the project.

Not Available

1992-10-16T23:59:59.000Z

234

Evolution of Anode Grade Calcined Coke - Programmaster.org  

Science Conference Proceedings (OSTI)

The term "anode grade coke" has been used as a broad definition to describe delayed coke with a sponge structure containing relatively low levels of trace ...

235

Strength of the coke fillers of carbon materials  

Science Conference Proceedings (OSTI)

Relationships between the ultimate compression strengths of coke fillers for carbon materials determined by various techniques and structures, final coke treatment temperatures, etc., are considered.

V.S. Ostrovskii [Research Institute of Structural Graphite Materials, Moscow (Russian Federation)

2008-12-15T23:59:59.000Z

236

New designs in the reconstruction of coke-sorting systems  

Science Conference Proceedings (OSTI)

In recent Giprokoks designs for the reconstruction of coke-sorting systems, high-productivity vibrational-inertial screens have been employed. This permits single-stage screening and reduction in capital and especially operating expenditures, without loss of coke quality. In two-stage screening, >80 mm coke (for foundry needs) is additionally separated, with significant improvement in quality of the metallurgical coke (25-80 mm). New designs for the reconstruction of coke-sorting systems employ mechanical treatment of the coke outside the furnace, which offers new scope for stabilization of coke quality and permits considerable improvement in mechanical strength and granulometric composition of the coke by mechanical crushing.

A.S. Larin; V.V. Demenko; V.L. Voitanik [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

237

Effect of Coke Particle Size on Sinter Quality  

Science Conference Proceedings (OSTI)

Abstract Scope, The effect of different Coke particle size on sinter quality has been investigated. Eight different coke particle sizes were chosen and sinter ...

238

Improving the Precision and Productivity of Green Coke VCM Analysis  

Science Conference Proceedings (OSTI)

Green cokes with high VCM (>12%) are more difficult to calcine and result in a higher porosity and lower bulk density in calcined coke. The paper will review ...

239

Observations on the Coke Air Reactivity Test - Programmaster.org  

Science Conference Proceedings (OSTI)

Coke air reactivities are strongly dependent on coke calcination levels and it is possible to drive air reactivities lower by increasing calcining temperatures.

240

Coal News and Markets - Energy Information Administration  

U.S. Energy Information Administration (EIA) Indexed Site

Coal News and Markets Coal News and Markets Release Date: December 16, 2013 | Next Release Date: December 24, 2013 "Coal News and Markets Report" summarizes spot coal prices by coal commodity regions (i.e., Central Appalachia (CAPP), Northern Appalachia (NAPP), Illinois Basin (ILB), Powder River Basin (PRB), and Uinta Basin (UIB)) in the United States. The report includes data on average weekly coal commodity spot prices, total monthly coal production, eastern monthly coal production, electric power sector coal stocks, and average cost of metallurgical coal at coke plants and export docks. The historical data for coal commodity spot market prices are proprietary and not available for public release. Average weekly coal commodity spot prices (dollars per short ton)

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Coal keeps the home fires burning, at a price  

SciTech Connect

The wild ride of 2007 thermal and coking coal and freight prices does not show any signs of abating as 2008 nears, leaving consumers coping with historic high costs, except in the US. 3 figs.

O'Connell, J.

2007-11-15T23:59:59.000Z

242

DOE-Supported Project Advances Clean Coal, Carbon Capture Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

CO2. OSU reports that the CDCL plant's 200+ hours of operation, using metallurgical coke and subbituminous and lignite coals, shows the robustness of its novel moving-bed...

243

Prevention of deleterious deposits in a coal liquefaction system  

DOE Patents (OSTI)

A process for preventing the formation of deleterious coke deposits on the walls of coal liquefaction reactor vessels involves passing hydrogen and a feed slurry comprising feed coal and recycle liquid solvent to a coal liquefaction reaction zone while imparting a critical mixing energy of at least 3500 ergs per cubic centimeter of reaction zone volume per second to the reacting slurry.

Carr, Norman L. (Allison Park, PA); Prudich, Michael E. (Pittsburgh, PA); King, Jr., William E. (Gibsonia, PA); Moon, William G. (Cheswick, PA)

1984-07-03T23:59:59.000Z

244

Innovative coke oven gas cleaning system for retrofit applications. Environmental Monitoring program. Volume 1 - sampling progrom report. Baseline Sampling Program report  

Science Conference Proceedings (OSTI)

Bethlehem Steel Corporation (BSC), in conjunction with the Department of Energy (DOE) is conducting a Clean Coal Technology (CCT) project at its Sparrows Point, Maryland Coke Oven Plant. This innovative coke oven gas cleaning system combines several existing technologies into an integrated system for removing impurities from Coke Oven Gas (COG) to make it an acceptable fuel. DOE provided cost-sharing under a Cooperative Agreement with BSC. This Cooperative Agreement requires BSC to develop and conduct and Environmental Monitoring Plan for the Clean Coal Technology project and to report the status of the EMP on a quarterly basis. It also requires the preparation of a final report on the results of the Baseline Compliance and Supplemental Sampling Programs that are part of the EMP and which were conducted prior to the startup of the innovative coke oven gas cleaning system. This report is the Baseline Sampling Program report.

Stuart, L.M.

1994-05-27T23:59:59.000Z

245

Market integration in the international coal industry: A cointegration approach  

SciTech Connect

The purpose of this paper is to test the hypothesis of the existence of a single economic market for the international coal industry, separated for coking and steam coal, and to investigate market integration over time. This has been conducted by applying cointegration and error-correction models on quarterly price series data in Europe and Japan over the time period 1980-2000. Both the coking and the steam coal markets show evidence of global market integration, as demonstrated by the stable long-run cointegrating relationship between the respective price series in different world regions. This supports the hypothesis of a globally integrated market. However, when analyzing market integration over time it is not possible to confirm cointegration in the 1990s for steam coal. Thus, compared to the coking coal market, the steam coal market looks somewhat less global in scope.

Warell, L. [University of Lulea, Lulea (Sweden). Dept. of Business Administration & Social Science

2006-07-01T23:59:59.000Z

246

FRAGMENTATION OF COAL AND IMPROVED DISPERSION OF LIQUEFACTION CATALYSTS USING IONIC LIQUIDS.  

E-Print Network (OSTI)

??Coal has been utilized for coal-to-liquid fuels and coal-to-chemical industries both historically in South Africa and recently in China. Abundant bituminous and low-rank coal reserves… (more)

Cetiner, Ruveyda

2011-01-01T23:59:59.000Z

247

Colorado Refinery Marketable Petroleum Coke Production Capacity as ...  

U.S. Energy Information Administration (EIA)

Colorado Refinery Marketable Petroleum Coke Production Capacity as of January 1 (Barrels per Stream Day)

248

Determination of electrical resistivity of dry coke beds  

SciTech Connect

The electrical resistivity of the coke bed is of great importance when producing FeMn, SiMn, and FeCr in a submerged arc furnace. In these processes, a coke bed is situated below and around the electrode tip and consists of metallurgical coke, slag, gas, and metal droplets. Since the basic mechanisms determining the electrical resistivity of a coke bed is not yet fully understood, this investigation is focused on the resistivity of dry coke beds consisting of different carbonaceous materials, i.e., coke beds containing no slag or metal. A method that reliably compares the electrical bulk resistivity of different metallurgical cokes at 1500{sup o} C to 1600{sup o}C is developed. The apparatus is dimensioned for industrial sized materials, and the electrical resistivity of anthracite, charcoal, petroleum coke, and metallurgical coke has been measured. The resistivity at high temperatures of the Magnitogorsk coke, which has the highest resistivity of the metallurgical cokes investigated, is twice the resistivity of the Corus coke, which has the lowest electrical resistivity. Zdzieszowice and SSAB coke sort in between with decreasing resistivities in the respective order. The electrical resistivity of anthracite, charcoal, and petroleum coke is generally higher than the resistivity of the metallurgical cokes, ranging from about two to about eight times the resistivity of the Corus coke at 1450{sup o}C. The general trend is that the bulk resistivity of carbon materials decreases with increasing temperature and increasing particle size.

Eidem, P.A.; Tangstad, M.; Bakken, J.A. [NTNU, Trondheim (Norway)

2008-02-15T23:59:59.000Z

249

U.S. Energy Information Administration | Annual Coal Report 2011  

U.S. Energy Information Administration (EIA) Indexed Site

production and number of mines by State and coal rank, 2011 (thousand short tons) U.S. Energy Information Administration | Annual Coal Report 2011 Table 6. Coal production and...

250

U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2013  

U.S. Energy Information Administration (EIA) Indexed Site

Destination Destination State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2013 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic Coal Distribution, by Destination State, 1st Quarter 2013 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 807 158 282 - 1,247 Alabama Railroad 449 71 14 - 534 Alabama River 358 - - - 358 Alabama Truck - 87 267 - 354 Colorado Total 204 - - - 204 Colorado Railroad

251

Petroleum Coke: A Viable Fuel for Cogeneration  

E-Print Network (OSTI)

Petroleum coke is a by-product of the coking process which upgrades (converts) low-valued residual oils into higher-valued transportation, heating and industrial fuels. Pace forecasts that by the year 2000 petroleum coke production will increase from 36 million to 47 million short tons/year. Because the crude pool will continue to become more sour and refiners treat the coker as the "garbage can" the quality of the petroleum cokes will generally degrade- contain higher sulfur and trace metal levels. The U.S. produces nearly 70% of the total and is expected to maintain this share. Domestic markets consumed less than half of the U.S. production; 80% of the high sulfur fuel grade production from the Gulf coast is exported to Japan or Europe. Increasing environmental concerns could disrupt historic markets and threaten coker operations. This would create opportunities for alternate end-uses such as cogeneration projects. The Pace Consultants Inc. continuously monitors and reports on the petroleum coke industry-production and markets-in its multi-client publication The Pace Petroleum Coke Ouarterly. The information presented in this paper is based on this involvement and Pace's experience in single and multi client consulting activities related to the petroleum refining and petroleum coke industries. The purpose is to provide a review of the existing world petroleum coke industry with particular emphasis on the U.S. production and markets. Forecasted production levels and critical factors which could alter the historic market disposition of petroleum coke are addressed.

Dymond, R. E.

1992-04-01T23:59:59.000Z

252

Platts top 250 global energy company rankings  

SciTech Connect

Revenues and profits for many firms surged last year over previous years. The turnaround from last year's global survey is dramatic. Asset- and revenue-rich integrated oil and gas companies dominate the top rungs of the 2005 Platts Top 250 Global Energy Company Rankings. The following industry segments were analyzed: diversified utilities; exploration and production; electric utilities; gas utilities; integrated oil and gas companies; refining and marketing; independent power producers; coal and consumable fuel companies and storage and transfer companies; The total combined revenue for the coal and consumable fuels sector was $74.7 billion. Leaders in this sector were: Yanzhou Coal Mining Co., CONSOl Energy Inc., Peabody Energy Corp., PT Bumi Resources Tbk, Cameco Corp., and Arch Coal. 14 tabs.

Mullen, T.; Leonard, M.

2005-12-01T23:59:59.000Z

253

Method for the wet quenching of coke  

SciTech Connect

A method and apparatus for the wet quenching of coke is disclosed wherein hot coke is sprayed from above with quenching water, the steam generated by the heat of the coke is condensed by a spray of condensation water from the top of the quenching tower, and the hot condensate-water mixture is collected at the bottom of the quenching tower and recirculated to the top of the tower where it is sprayed between quenching operations to be cooled by a counterflowing stream of air. The cooled condensate water mixture is suitable for reuse as the condensation spray water.

Blase, M.; Flockenhaus, C.; Wagener, D.

1982-03-30T23:59:59.000Z

254

Heteroatom incorporated coke for electrochemical cell electrode  

DOE Patents (OSTI)

This invention relates to an electrode for a coke/alkali metal electrochemical cell comprising: (a) calcined coke particles: (i) that contain at least 0.5 weight percent of nitrogen heteroatoms and at least 1.0 weight percent sulfur heteroatoms, and (ii) that have an average particle size from 2 microns to 40 microns with essentially no particles being greater than 50 microns. (b) a binder This invention also relates to a coke/alkali metal electrochemical cell comprising: (a) an electrode as described above, (b) a non-aqueous electrolytic solution comprising an organic aprotic solvent and an electrically conductive salt, and (c) a counterelectrode.

Lewis, Irwin Charles (Strongsville, OH); Greinke, Ronald Alfred (Medina, OH)

1997-01-01T23:59:59.000Z

255

Heteroatom incorporated coke for electrochemical cell electrode  

DOE Patents (OSTI)

This invention relates to an electrode for a coke/alkali metal electrochemical cell comprising: (a) calcined coke particles: (1) that contain at least 0.5 weight percent of nitrogen heteroatoms and at least 1.0 weight percent sulfur heteroatoms, and (2) that have an average particle size from 2 microns to 40 microns with essentially no particles being greater than 50 microns and (b) a binder. This invention also relates to a coke/alkali metal electrochemical cell comprising: (a) an electrode as described above, (b) a non-aqueous electrolytic solution comprising an organic aprotic solvent and an electrically conductive salt, and (c) a counterelectrode. 5 figs.

Lewis, I.C.; Greinke, R.A.

1997-06-17T23:59:59.000Z

256

Spatial variation of coke quality in the non-recovery beehive coke ovens.  

E-Print Network (OSTI)

??More than 50% of hot metal production worldwide takes place in blast furnaces. Coke is the most expensive raw material in the blast furnace. It… (more)

Segers, Magrieta

2006-01-01T23:59:59.000Z

257

Réactivité de l'anode et désulfuration : effet du niveau de calcination du coke.  

E-Print Network (OSTI)

??Les propriétés du coke et la performance des anodes sont affectées par le niveau de calcination du coke. Une densité de coke (VBD) élevée implique… (more)

Bergeron-Lagacé, Charles-Luc

2012-01-01T23:59:59.000Z

258

Adding coal dust to coal batch  

Science Conference Proceedings (OSTI)

The granulometric composition of coke dust from the dry-slaking machine is determined. The influence of additions of 3-7% coke dust on the quality of industrial coking batch and the coke obtained by box coking is estimated. Adding 1% coke dust to coking batch does not markedly change the coke quality. Industrial equipment for the supply of dry-slaking dust to the batch is described.

V.S. Shved; A.V.Berezin [OAO Koks, Kemerovo (Russian Federation)

2009-05-15T23:59:59.000Z

259

Who lives near coke plants and oil refineries An exploration of the environmental inequity hypothesis  

SciTech Connect

Facility-specific information on pollution was obtained for 36 coke plants and 46 oil refineries in the US and matched with information on populations surrounding these 82 facilities. These data were analyzed to determine whether environmental inequities were present, whether they were more economic or racial in nature, and whether the racial composition of nearby communities has changed significantly since plants began operations. The Census tracts near coke plants have a disproportionate share of poor and nonwhite residents. Multivariate analyses suggest that existing inequities are primarily economic in nature. The findings for oil refineries are not strongly supportive of the environmental inequity hypothesis. Rank ordering of facilities by race, poverty, and pollution produces limited (although not consistent) evidence that the more risky facilities tend to be operating in communities with above-median proportions of nonwhite residents (near coke plants) and Hispanic residents (near oil refineries). Over time, the radical makeup of many communities near facilities has changed significantly, particularly in the case of coke plants sited in the early 1900s. Further risk-oriented studies of multiple manufacturing facilities in various industrial sectors of the economy are recommended.

Graham, J.D.; Beaulieu, N.D.; Sussman, D.; Sadowitz, M.; Li, Y.C. (Harvard Center for Risk Analysis, Boston, MA (United States))

1999-04-01T23:59:59.000Z

260

Most U.S. coal exports went to European and Asian markets in 2011 ...  

U.S. Energy Information Administration (EIA)

South Korea (10 million short tons) ranked in the top 10 destinations for both U.S. metallurgical coal exports and steam coal exports. In fact, ...

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Fundamentals of Delayed Coking Joint Industry Project  

SciTech Connect

Delayed coking evolved steadily over the early to mid 1900s to enable refiners to convert high boiling, residual petroleum fractions to light products such as gasoline. Pound for pound, coking is the most energy intensive of any operation in a modern refinery. Large amounts of energy are required to heat the thick, poor-quality petroleum residuum to the 900 to 950 degrees F required to crack the heavy hydrocarbon molecules into lighter, more valuable products. One common misconception of delayed coking is that the product coke is a disadvantage. Although coke is a low valued (near zero economic value) byproduct, compared to transportation fuels, there is a significant worldwide trade and demand for coke as it is an economical fuel. Coke production has increased steadily over the last ten years, with further increases forecast for the foreseeable future. Current domestic production is near 111,000 tons per day. A major driving force behind this increase is the steady decline in crude quality available to refiners. Crude slates are expected to grow heavier with higher sulfur contents while environmental restrictions are expected to significantly reduce the demand for high-sulfur residual fuel oil. Light sweet crudes will continue to be available and in even greater demand than they are today. Refiners will be faced with the choice of purchasing light sweet crudes at a premium price, or adding bottom of the barrel upgrading capability, through additional new investments, to reduce the production of high-sulfur residual fuel oil and increase the production of low-sulfur distillate fuels. A second disadvantage is that liquid products from cokers frequently are unstable, i.e., they rapidly form gum and sediments. Because of intermediate investment and operating costs, delayed coking has increased in popularity among refiners worldwide. Based on the 2000 Worldwide Refining Survey published in the Oil and Gas, the delayed coking capacity for 101 refineries around the world is 2,937,439 barrels/calendar day. These cokers produce 154,607 tons of coke per day and delayed coking accounts for 88% of the world capacity. The delayed coking charge capacity in the United States is 1,787,860 b/cd. Despite its wide commercial use, only relatively few contractors and refiners are truly knowledgeable in delayed-coking design, so that this process carries with it a ''black art'' connotation. Until recently, the expected yield from cokers was determined by a simple laboratory test on the feedstock. As a result of Tulsa University's prior related research, a process model was developed that with additional work could be used to optimize existing delayed cokers over a wide range of potential feedstocks and operating conditions. The objectives of this research program are to: utilize the current micro, batch and pilot unit facilities at The University of Tulsa to enhance the understanding of the coking process; conduct additional micro and pilot unit tests with new and in-house resids and recycles to make current optimization models more robust; conduct focused kinetic experiments to enhance the furnace tube model and to enhance liquid production while minimizing sulfur in the products; conduct detailed foaming studies to optimize the process and minimize process upsets; quantify the parameters that affect coke morphology; and to utilize the knowledge gained from the experimental and modeling studies to enhance the computer programs developed in the previous JIP for optimization of the coking process. These refined computer models will then be tested against refinery data provided by the member companies. Novel concepts will also be explored for hydrogen sulfide removal of furnace gases as well as gas injection studies to reduce over-cracking.

Michael Volk; Keith Wisecarver

2004-09-26T23:59:59.000Z

262

Fundamentals of Delayed Coking Joint Industry Project  

SciTech Connect

Delayed coking evolved steadily over the early to mid 1900s to enable refiners to convert high boiling, residual petroleum fractions to light products such as gasoline. Pound for pound, coking is the most energy intensive of any operation in a modern refinery. Large amounts of energy are required to heat the thick, poor-quality petroleum residuum to the 900 to 950 degrees F required to crack the heavy hydrocarbon molecules into lighter, more valuable products. One common misconception of delayed coking is that the product coke is a disadvantage. Although coke is a low valued (near zero economic value) byproduct, compared to transportation fuels, there is a significant worldwide trade and demand for coke as it is an economical fuel. Coke production has increased steadily over the last ten years, with further increases forecast for the foreseeable future. Current domestic production is near 111,000 tons per day. A major driving force behind this increase is the steady decline in crude quality available to refiners. Crude slates are expected to grow heavier with higher sulfur contents while environmental restrictions are expected to significantly reduce the demand for high-sulfur residual fuel oil. Light sweet crudes will continue to be available and in even greater demand than they are today. Refiners will be faced with the choice of purchasing light sweet crudes at a premium price, or adding bottom of the barrel upgrading capability, through additional new investments, to reduce the production of high-sulfur residual fuel oil and increase the production of low-sulfur distillate fuels. A second disadvantage is that liquid products from cokers frequently are unstable, i.e., they rapidly form gum and sediments. Because of intermediate investment and operating costs, delayed coking has increased in popularity among refiners worldwide. Based on the 2000 Worldwide Refining Survey published in the Oil and Gas, the delayed coking capacity for 101 refineries around the world is 2,937,439 barrels/calendar day. These cokers produce 154,607 tons of coke per day and delayed coking accounts for 88% of the world capacity. The delayed coking charge capacity in the United States is 1,787,860 b/cd. Despite its wide commercial use, only relatively few contractors and refiners are truly knowledgeable in delayed-coking design, so that this process carries with it a ''black art'' connotation. Until recently, the expected yield from cokers was determined by a simple laboratory test on the feedstock. As a result of Tulsa University's prior related research, a process model was developed that with additional work could be used to optimize existing delayed cokers over a wide range of potential feedstocks and operating conditions. The objectives of this research program are to: utilize the current micro, batch and pilot unit facilities at The University of Tulsa to enhance the understanding of the coking process; conduct additional micro and pilot unit tests with new and in-house resids and recycles to make current optimization models more robust; conduct focused kinetic experiments to enhance the furnace tube model and to enhance liquid production while minimizing sulfur in the products; conduct detailed foaming studies to optimize the process and minimize process upsets; quantify the parameters that affect coke morphology; and to utilize the knowledge gained from the experimental and modeling studies to enhance the computer programs developed in the previous JIP for optimization of the coking process. These refined computer models will then be tested against refinery data provided by the member companies. Novel concepts will also be explored for hydrogen sulfide removal of furnace gases as well as gas injection studies to reduce over-cracking.

Michael Volk; Keith Wisecarver

2003-09-26T23:59:59.000Z

263

New and revised standards for coke production  

SciTech Connect

The need for new and revised standards for coke production in Ukraine and Russia is outlined. Such standards should address improvements in plant operation, working conditions, environmental protection, energy conservation, fire and explosion safety, and economic indices.

G.A. Kotsyuba; M.I. Alpatov; Y.G. Shapoval [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

264

Inside PageRank  

Science Conference Proceedings (OSTI)

Although the interest of a Web page is strictly related to its content and to the subjective readers' cultural background, a measure of the page authority can be provided that only depends on the topological structure of the Web. PageRank is a noticeable ... Keywords: Information retrieval, Markov chains, PageRank, Web page scoring, search engines, searching the Web

Monica Bianchini; Marco Gori; Franco Scarselli

2005-02-01T23:59:59.000Z

265

Ranking distributed probabilistic data  

Science Conference Proceedings (OSTI)

Ranking queries are essential tools to process large amounts of probabilistic data that encode exponentially many possible deterministic instances. In many applications where uncertainty and fuzzy information arise, data are collected from multiple sources ... Keywords: distributed query processing, probabilistic data, ranking queries, top-k, uncertain databases

Feifei Li; Ke Yi; Jeffrey Jestes

2009-06-01T23:59:59.000Z

266

Method for processing coke oven gas  

SciTech Connect

Coke oven gas is subjected, immediately after the discharge thereof from coke ovens, and without any preliminary cooling operation or any purification operation other than desulfurization, to a catalytic cracking operation to form a hot cracked gas which is rich in hydrogen and carbon monoxide. The catalytic cracking reaction is carried out in the presence of a hydrogen-containing and/or CO2-containing gas, with a steam reforming catalyst.

Flockenhaus, C.; Meckel, J.F.; Wagener, D.

1980-11-25T23:59:59.000Z

267

U.S. Energy Information Administration | Annual Coal Report 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Coal Consumers in the Manufacturing and Coke Sectors, 2012 Coal Consumers in the Manufacturing and Coke Sectors, 2012 U.S. Energy Information Administration | Annual Coal Report 2012 Table 25. Coal Consumers in the Manufacturing and Coke Sectors, 2012 U.S. Energy Information Administration | Annual Coal Report 2012 Company Name Plant Location Top Ten Manufacturers American Crystal Sugar Co MN, ND Archer Daniels Midland IA, IL, MN, ND, NE Carmeuse Lime Stone Inc AL, IL, IN, KY, MI, OH, PA, TN, VA, WI Cemex Inc AL, CA, CO, FL, GA, KY, OH, TN, TX Dakota Gasification Company ND Eastman Chemical Company TN Georgia-Pacific LLC AL, GA, OK, VA, WI Holcim (US) Inc AL, CO, MD, MO, MT, OK, SC, TX, UT NewPage Corporation MD, MI, WI U S Steel Corporation AL, IN, MI, MN Other Major Manufacturers Ash Grove Cement Co

268

Energy efficiency of alternative coke-free metallurgical technologies  

SciTech Connect

Energy analysis is undertaken for the blast-furnace process, for liquid-phase processes (Corex, Hismelt, Romelt), for solid-phase pellet reduction (Midrex, HYL III, LP-V in a shaft furnace), for steel production in systems consisting of a blast furnace and a converter, a Midrex unit and an arc furnace, or a Romelt unit and an arc furnace, and for scrap processing in an arc furnace or in an LP-V shaft furnace. Three blast-furnace processes with sinter and coke are adopted as the basis of comparison, as in: the standard blast-furnace process used in Russia; the improved blast-furnace process with coal-dust injection; and the production of vanadium hot metal from vanadium-bearing titanomagnetite ore (with a subsequent duplex process, ferrovanadium production, and its use in the arc furnace).

V.G. Lisienko; A.V. Lapteva; A.E. Paren'kov [Ural State Technical University - Ural Polytechnic Institute, Yekaterinburg (Russian Federation)

2009-02-15T23:59:59.000Z

269

NETL: Utilization Projects - Managing High-Carbon Ash  

NLE Websites -- All DOE Office Websites (Extended Search)

fuels includes US. coals of various rank, international coals, and alternate fuels from wood, agricultural residues, petroleum cokes, and organic model compounds. The surfactant...

270

Pore size distribution and accessible pore size distribution in bituminous coals  

Science Conference Proceedings (OSTI)

The porosity and pore size distribution of coals determine many of their properties, from gas release to their behavior on carbonization, and yet most methods of determining pore size distribution can only examine a restricted size range. Even then, only accessible pores can be investigated with these methods. Small-angle neutron scattering (SANS) and ultra small-angle neutron scattering (USANS) are increasingly used to characterize the size distribution of all of the pores non-destructively. Here we have used USANS/SANS to examine 24 well-characterized bituminous and subbituminous coals: three from the eastern US, two from Poland, one from New Zealand and the rest from the Sydney and Bowen Basins in Eastern Australia, and determined the relationships of the scattering intensity corresponding to different pore sizes with other coal properties. The range of pore radii examinable with these techniques is 2.5 nm to 7 {micro}m. We confirm that there is a wide range of pore sizes in coal. The pore size distribution was found to be strongly affected by both rank and type (expressed as either hydrogen or vitrinite content) in the size range 250 nm to 7 {micro}m and 5 to 10 nm, but weakly in intermediate regions. The results suggest that different mechanisms control coal porosity on different scales. Contrast-matching USANS and SANS were also used to determine the size distribution of the fraction of the pores in these coals that are inaccessible to deuterated methane, CD{sub 4}, at ambient temperature. In some coals most of the small ({approx} 10 nm) pores were found to be inaccessible to CD{sub 4} on the time scale of the measurement ({approx} 30 min - 16 h). This inaccessibility suggests that in these coals a considerable fraction of inherent methane may be trapped for extended periods of time, thus reducing the effectiveness of methane release from (or sorption by) these coals. Although the number of small pores was less in higher rank coals, the fraction of total pores that was inaccessible was not rank dependent. In the Australian coals, at the 10 nm to 50 nm size scales the pores in inertinites appeared to be completely accessible to CD{sub 4}, whereas the pores in the vitrinite were about 75% inaccessible. Unlike the results for total porosity that showed no regional effects on relationships between porosity and coal properties, clear regional differences in the relationships between fraction of closed porosity and coal properties were found. The 10 to 50 nm-sized pores of inertinites of the US and Polish coals examined appeared less accessible to methane than those of the inertinites of Australian coals. This difference in pore accessibility in inertinites may explain why empirical relationships between fluidity and coking properties developed using Carboniferous coals do not apply to Australian coals.

Sakurovs, Richard [ORNL; He, Lilin [ORNL; Melnichenko, Yuri B [ORNL; Radlinski, Andrzej Pawell [ORNL; Blach, Tomasz P [ORNL

2012-01-01T23:59:59.000Z

271

Quarterly coal report, October--December 1996  

SciTech Connect

The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for October through December 1996 and aggregated quarterly historical data for 1990 through the third quarter of 1996. Appendix A displays, from 1988 on, detailed quarterly historical coal imports data. To provide a complete picture of coal supply and demand in the US, historical information has been integrated in this report. 8 figs., 72 tabs.

NONE

1997-05-01T23:59:59.000Z

272

Innovative coke oven gas cleaning system for retrofit applications. Quarterly environmental monitoring report No. 1, January 1, 1991--June 30, 1991  

DOE Green Energy (OSTI)

The coke plant at the Sparrows Point Plant consist of three coke oven batteries and two coal chemical plants. The by-product coke oven gas (COG) consists primarily of hydrogen, methane, carbon monoxide, nitrogen and contaminants consisting of tars, light oils (benzene, toluene, and xylene) hydrogen sulfide, ammonia, water vapor and other hydrocarbons. This raw coke oven gas needs to be cleaned of most of its contaminants before it can be used as a fuel at other operations at the Sparrows Point Plant. In response to environmental concerns, BSC decided to replace much of the existing coke oven gas treatment facilities in the two coal chemical Plants (A and B) with a group of technologies consisting of: Secondary Cooling of the Coke oven Gas; Hydrogen Sulfide Removal; Ammonia Removal; Deacification of Acid Gases Removed; Ammonia Distillation and Destruction; and, Sulfur Recovery. This combination of technologies will replace the existing ammonia removal system, the final coolers, hydrogen sulfide removal system and the sulfur recovery system. The existing wastewater treatment, tar recovery and one of the three light oil recovery systems will continue to be used to support the new innovative combination of COG treatment technologies.

Not Available

1992-08-24T23:59:59.000Z

273

Sustainable development with clean coal  

SciTech Connect

This paper discusses the opportunities available with clean coal technologies. Applications include new power plants, retrofitting and repowering of existing power plants, steelmaking, cement making, paper manufacturing, cogeneration facilities, and district heating plants. An appendix describes the clean coal technologies. These include coal preparation (physical cleaning, low-rank upgrading, bituminous coal preparation); combustion technologies (fluidized-bed combustion and NOx control); post-combustion cleaning (particulate control, sulfur dioxide control, nitrogen oxide control); and conversion with the integrated gasification combined cycle.

NONE

1997-08-01T23:59:59.000Z

274

Characteristics of American coals in relation to their conversion into clean-energy fuels. Final report. [1150 samples of US coals  

DOE Green Energy (OSTI)

To further characterize the Nation's coals, the Penn State Coal Sample Bank and Data Base were expanded to include a total of 1150 coal samples. The Sample Bank includes full-seam channel samples as well as samples of lithotypes, seam benches, and sub-seam sections. To the extent feasible and appropriate basic compositional data were generated for each sample and validated and computerized. These data include: proximate analysis, ultimate analysis, sulfur forms analysis, calorific value, maceral analysis, vitrinite reflectance analysis, ash fusion analysis, free-swelling index determination, Gray-King coke type determination, Hardgrove grindability determination, Vicker's microhardness determination, major and minor element analysis, trace element analysis, and mineral species analysis. During the contract period more than 5000 samples were prepared and distributed. A theoretical and experimental study of the pyrolysis of coal has been completed. The reactivity of chars, produced from all ranks of American coals, has been studied with regard to reactivity to air, CO/sub 2/, H/sub 2/ and steam. Another area research has concerned the catalytic effect of minerals and various cations on the gasification processes. Combustion of chars, low volatile fuels, coal-oil-water-air emulsions and other subjects of research are reported here. The products of this research can be found in 23 DOE Technical Research Reports and 49 published papers. As another mechanism of technology transfer, the results have been conveyed via more than 70 papers presented at a variety of scientific meetings. References to all of these are contained in this report.

Spackman, W.; Davis, A.; Walker, P.L.; Lovell, H.L.; Vastola, F.J.; Given, P.H.; Suhr, N.H.; Jenkins, R.G.

1982-06-01T23:59:59.000Z

275

Structure-Based Predictive model for Coal Char Combustion.  

SciTech Connect

During the third quarter of this project, progress was made on both major technical tasks. Progress was made in the chemistry department at OSU on the calculation of thermodynamic properties for a number of model organic compounds. Modelling work was carried out at Brown to adapt a thermodynamic model of carbonaceous mesophase formation, originally applied to pitch carbonization, to the prediction of coke texture in coal combustion. This latter work makes use of the FG-DVC model of coal pyrolysis developed by Advanced Fuel Research to specify the pool of aromatic clusters that participate in the order/disorder transition. This modelling approach shows promise for the mechanistic prediction of the rank dependence of char structure and will therefore be pursued further. Crystalline ordering phenomena were also observed in a model char prepared from phenol-formaldehyde carbonized at 900{degrees}C and 1300{degrees}C using high-resolution TEM fringe imaging. Dramatic changes occur in the structure between 900 and 1300{degrees}C, making this char a suitable candidate for upcoming in situ work on the hot stage TEM. Work also proceeded on molecular dynamics simulations at Boston University and on equipment modification and testing for the combustion experiments with widely varying flame types at Ohio State.

Hurt, R.; Colo, J [Brown Univ., Providence, RI (United States). Div. of Engineering; Essenhigh, R.; Hadad, C [Ohio State Univ., Columbus, OH (United States). Dept. of Chemistry; Stanley, E. [Boston Univ., MA (United States). Dept. of Physics

1997-09-24T23:59:59.000Z

276

Development of coke strength after reaction (CSR) at Dofasco  

Science Conference Proceedings (OSTI)

In order to prevent coke degradation without detrimentally affecting blast furnace service life, Dofasco initiated a project to improve coke strength after reaction. The results of the program and Dofasco's prediction model are presented. 9 refs., 12 figs., 9 tabs.

T.W. Todoschuk; J.P. Price; J.F. Gransden

2004-03-01T23:59:59.000Z

277

Coal char fragmentation during pulverized coal combustion  

Science Conference Proceedings (OSTI)

A series of investigations of coal and char fragmentation during pulverized coal combustion is reported for a suite of coals ranging in rank from lignite to low-volatile (lv) bituminous coal under combustion conditions similar to those found in commercial-scale boilers. Experimental measurements are described that utilize identical particle sizing characteristics to determine initial and final size distributions. Mechanistic interpretation of the data suggest that coal fragmentation is an insignificant event and that char fragmentation is controlled by char structure. Chars forming cenospheres fragment more extensively than solid chars. Among the chars that fragment, large particles produce more fine material than small particles. In all cases, coal and char fragmentation are seen to be sufficiently minor as to be relatively insignificant factors influencing fly ash size distribution, particle loading, and char burnout.

Baxter, L.L.

1995-07-01T23:59:59.000Z

278

Characterization of Petroleum Coke and Butts Used in Anode ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Particulate Composites. Presentation Title, Characterization of Petroleum Coke ...

279

U.S. Refinery Thermal Cracking, Fluid Coking Downstream Charge ...  

U.S. Energy Information Administration (EIA)

U.S. Refinery Thermal Cracking, Fluid Coking Downstream Charge Capacity as of January 1 (Barrels per Stream Day)

280

U.S. Refinery Marketable Petroleum Coke Production Capacity as ...  

U.S. Energy Information Administration (EIA)

U.S. Refinery Marketable Petroleum Coke Production Capacity as of January 1 (Barrels per Stream Day)

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Effect of Coke particle size on sinter quality  

Science Conference Proceedings (OSTI)

Meeting, 2011 TMS Annual Meeting & Exhibition. Symposium, EMPMD Technical Division Student Poster Contest. Presentation Title, Effect of Coke particle size ...

282

An empirical assessment of ranking accuracy in ranked set sampling  

Science Conference Proceedings (OSTI)

Ranked set sampling (RSS) involves ranking of potential sampling units on the variable of interest using judgment or an auxiliary variable to aid in sample selection. Its effectiveness depends on the success in this ranking. We provide an empirical assessment ... Keywords: Concomitant ranking, Logistic regression, Simple random sampling, Simulation study

Haiying Chen; Elizabeth A. Stasny; Douglas A. Wolfe

2006-11-01T23:59:59.000Z

283

Coke oven gas desulfurization: at Republic Steel's New Coking Facility, Warren, OH  

SciTech Connect

Our performance test indicates that the Sulfiban process is an effective method for removing H/sub 2/S from coke-oven gas. The process is able to handle variations in coke-oven gas flow and composition. Continuing efforts are underway to maintain optimum desulfurization conditions while trying to reduce waste production and MEA consumption. The problems which have prevented us from operating continuously have given us a better understanding of the process. This has contributed to better plant operations and greater equipment reliability for us to obtain continuous coke-oven gas desulfurization. 2 figures, 1 table.

Boak, S.C.; Prucha, D.G.; Turic, H.L.

1981-01-01T23:59:59.000Z

284

Air pollution from a large steel factory: polycyclic aromatic hydrocarbon emissions from coke-oven batteries  

SciTech Connect

A systematic investigation of solid and gaseous atmospheric emissions from some coke-oven batteries of one of Europe's largest integrated steel factory (Taranto, Italy) has been carried out. These emissions, predominantly diffuse, originate from oven leakages, as well as from cyclic operations of coal loading and coke unloading. In air monitoring samples, polycyclic aromatic hydrocarbons (PAHs) were consistently detected at concentrations largely exceeding threshold limit values. By means of PAHs speciation profile and benzo-(a)pyrene (BaP) equivalent dispersion modeling from diffuse sources, the study indicated that serious health risks exist not only in working areas, but also in a densely populated residential district near the factory. 30 refs., 5 figs., 3 tabs.

Lorenzo Liberti; Michele Notarnicola; Roberto Primerano; Paolo Zannetti [Technical University of Bari, Bari (Italy). Department of Environmental Engineering and Sustainable Development

2006-03-15T23:59:59.000Z

285

Effect of Trace Elements on Anaerobic Digestion of Coking Wastewater  

Science Conference Proceedings (OSTI)

The pretreatment of coking wastewater using ASBR was conducted at 35? in this paper. The addition of trace elements to the anaerobic reactor has positive effect on the anaerobic treatment of coking wastewater, but too much or too little of it will ... Keywords: trace elements, anaerobic digestion, coking wastewater

Yu-ying Li; Bing Li

2009-10-01T23:59:59.000Z

286

Financial Analysis for Developing CDM Project in the Coke Plant  

Science Conference Proceedings (OSTI)

In the coke plant, the traditional coke wet quenching method is to be used to cool down the red hot coke and waste heat is released to the atmosphere in China. There are a lot of smog, particles, cyanide, sulphide and etc. mixtures within the waste heat. ... Keywords: CDQ technology, CO2 emission reductions, financial analysis, potential calculation, recycle sustainable development

Ma Xiuqin; Huang Chao; Wu Guoning

2009-05-01T23:59:59.000Z

287

Kansas refinery starts up coke gasification unit  

SciTech Connect

Texaco Refining and Marketing Inc. has started up a gasification unit at its El Dorado, Kan., refinery. The unit gasifies delayed coke and other refinery waste products. This is the first refinery to install a coke-fueled gasification unit for power generation. Start-up of the $80-million gasification-based power plant was completed in mid-June. The gasifier produces syngas which, along with natural gas, fuels a combustion turbine. The turbine produces virtually 100% of the refinery`s electricity needs and enough heat to generate 40% of its steam requirements.

Rhodes, A.K.

1996-08-05T23:59:59.000Z

288

Fundamentals of Delayed Coking Joint Industry Project  

Science Conference Proceedings (OSTI)

The coking test facilities include three reactors (or cokers) and ten utilities. Experiments were conducted using the micro-coker, pilot-coker, and stirred-batch coker. Gas products were analyzed using an on-line gas chromatograph. Liquid properties were analyzed in-house using simulated distillation (HP 5880a), high temperature gas chromatography (6890a), detailed hydrocarbon analysis, and ASTM fractionation. Coke analyses as well as feedstock analyses and some additional liquid analyses (including elemental analyses) were done off-site.

Volk Jr., Michael; Wisecarver, Keith D.; Sheppard, Charles M.

2003-02-07T23:59:59.000Z

289

U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013  

U.S. Energy Information Administration (EIA) Indexed Site

Coke and Breeze Production at Coke Plants Coke and Breeze Production at Coke Plants (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 3. Coke and Breeze Production at Coke Plants (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Census Division April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change Middle Atlantic w w w w w w East North Central 2,303 2,314 2,365 4,617 4,754 -2.9 South Atlantic w w w w w w East South Central w w w w w w U.S. Total 4,152 4,098 4,104 8,249 8,233 0.2 Coke Total 3,954 3,841 3,863 7,795 7,721 1.0 Breeze Total 198 257 241 455 512 -11.2 w = Data withheld to avoid disclosure. Note: Total may not equal sum of components because of independent rounding. Source: U.S. Energy Information Administration (EIA), Form EIA-5, 'Quarterly Coal Consumption Report - Coke Plants.'

290

U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013  

U.S. Energy Information Administration (EIA) Indexed Site

1. Coke and Breeze Stocks at Coke Plants by Census Division 1. Coke and Breeze Stocks at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 41. Coke and Breeze Stocks at Coke Plants by Census Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Census Division June 30, 2013 March 31, 2013 June 30, 2012 Percent Change (June 30) 2013 versus 2012 Middle Atlantic w w w w East North Central 724 510 509 42.1 South Atlantic w w w w East South Central w w w w U.S. Total 914 690 674 35.6 Coke Total 757 573 594 27.5 Breeze Total 157 117 80 95.2 w = Data withheld to avoid disclosure. Note: Total may not equal sum of components because of independent rounding. Source: U.S. Energy Information Administration (EIA), Form EIA-5, 'Quarterly Coal Consumption and Quality Report - Coke Plants

291

Definition: Bituminous coal | Open Energy Information  

Open Energy Info (EERE)

Bituminous coal Bituminous coal Jump to: navigation, search Dictionary.png Bituminous coal A dense coal, usually black, sometimes dark brown, often with well-defined bands of bright and dull material, used primarily as fuel in steam-electric power generation, with substantial quantities also used for heat and power applications in manufacturing and to make coke; contains 45-86% carbon.[1][2] View on Wikipedia Wikipedia Definition Bituminous coal or black coal is a relatively soft coal containing a tarlike substance called bitumen. It is of higher quality than lignite coal but of poorer quality than anthracite. Formation is usually the result of high pressure being exerted on lignite. Its composition can be black and sometimes dark brown; often there are well-defined bands of bright and dull

292

Reducing dust emissions at OAO Alchevskkoks coke battery 10A  

Science Conference Proceedings (OSTI)

Coke battery 10A with rammed batch is under construction at OAO Alchevskkoks. The design documentation developed by Giprokoks includes measures for reducing dust emissions to the atmosphere. Aspiration systems with dry dust trapping are employed in the new components of coke battery 10A and in the existing coke-sorting equipment. Two-stage purification of dusty air in cyclones and bag filters is employed for the coke-sorting equipment. This system considerably reduces coke-dust emissions to the atmosphere.

T.F. Trembach; E.N. Lanina [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

293

Fundamentals of Delayed Coking Joint Industry Project  

SciTech Connect

Delayed coking evolved steadily over the early to mid 1900s to enable refiners to convert high boiling, residual petroleum fractions to light products such as gasoline. Pound for pound, coking is the most energy intensive of any operation in a modern refinery. Large amounts of energy are required to heat the thick, poor-quality petroleum residuum to the 900 to 950 degrees F required to crack the heavy hydrocarbon molecules into lighter, more valuable products. One common misconception of delayed coking is that the product coke is a disadvantage. Although coke is a low valued (near zero economic value) byproduct, compared to transportation fuels, there is a significant worldwide trade and demand for coke as it is an economical fuel. Coke production has increased steadily over the last ten years, with further increases forecast for the foreseeable future. Current domestic production is near 111,000 tons per day. A major driving force behind this increase is the steady decline in crude quality available to refiners. Crude slates are expected to grow heavier with higher sulfur contents while environmental restrictions are expected to significantly reduce the demand for high-sulfur residual fuel oil. Light sweet crudes will continue to be available and in even greater demand than they are today. Refiners will be faced with the choice of purchasing light sweet crudes at a premium price, or adding bottom of the barrel upgrading capability, through additional new investments, to reduce the production of high-sulfur residual fuel oil and increase the production of low-sulfur distillate fuels. A second disadvantage is that liquid products from cokers frequently are unstable, i.e., they rapidly form gum and sediments. Because of intermediate investment and operating costs, delayed coking has increased in popularity among refiners worldwide. Based on the 2000 Worldwide Refining Survey published in the Oil and Gas, the delayed coking capacity for 101 refineries around the world is 2,937,439 barrels/calendar day. These cokers produce 154,607 tons of coke per day and delayed coking accounts for 88% of the world capacity. The delayed coking charge capacity in the United States is 1,787,860 b/cd. Despite its wide commercial use, only relatively few contractors and refiners are truly knowledgeable in delayed-coking design, so that this process carries with it a ''black art'' connotation. Until recently, the expected yield from cokers was determined by a simple laboratory test on the feedstock. As a result of Tulsa University's prior related research, a process model was developed that with additional work could be used to optimize existing delayed cokers over a wide range of potential feedstocks and operating conditions. The objectives of this research program are to: utilize the current micro, batch and pilot unit facilities at The University of Tulsa to enhance the understanding of the coking process; conduct additional micro and pilot unit tests with new and in-house resids and recycles to make current optimization models more robust; conduct focused kinetic experiments to enhance the furnace tube model and to enhance liquid production while minimizing sulfur in the products; conduct detailed foaming studies to optimize the process and minimize process upsets; quantify the parameters that affect coke morphology; and to utilize the knowledge gained from the experimental and modeling studies to enhance the computer programs developed in the previous JIP for optimization of the coking process. These refined computer models will then be tested against refinery data provided by the member companies. Novel concepts will also be explored for hydrogen sulfide removal of furnace gases as well as gas injection studies to reduce over-cracking. The following deliverables are scheduled from the two projects of the three-year JIP: (1) A novel method for enhancing liquid yields from delayed cokers and data that provide insight as to the optimum temperature to remove hydrogen sulfide from furnace gases. (2) An understanding of what causes foaming in c

Michael Volk Jr; Keith Wisecarver

2005-10-01T23:59:59.000Z

294

Water protection in coke-plant design  

Science Conference Proceedings (OSTI)

Wastewater generation, water consumption, and water management at coke plants are considered. Measures to create runoff-free water-supply and sewer systems are discussed. Filters for water purification, corrosion inhibitors, and biocides are described. An integrated single-phase technology for the removal of phenols, thiocyanides, and ammoniacal nitrogen is outlined.

G.I. Alekseev [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

295

Optimizing ranked retrieval  

Science Conference Proceedings (OSTI)

Ranked retrieval plays an important role in explorative querying, where the user is interested in the top k results of complex ad-hoc queries. In such a scenario, response times are very important, but at the same time, tuning techniques, such ...

Thomas Neumann

2007-09-01T23:59:59.000Z

296

Production of coal-based fuels and value-added products: coal to liquids using petroleum refinery streams  

SciTech Connect

We are studying several processes that utilize coal, coal-derived materials, or biomass in existing refining facilities. A major emphasis is the production of a coal-based replacement for JP-8 jet fuel. This fuel is very similar to Jet A and jet A-1 in commercial variation, so this work has significant carry-over into the private sector. We have been focusing on three processes that would be retrofitted into a refinery: (1) coal tar/refinery stream blending and hydro-treatment; (2) coal extraction using refinery streams followed by hydro-treatment; and (3) co-coking of coal blended with refinery streams. 4 figs., 5 tabs.

Clifford, C.E.B.; Schobert, H.H. [Pennsylvania State University, PA (United States)

2008-07-01T23:59:59.000Z

297

Comparison of coal and iron requirements between bituminous coal hydrogenation and low temperature carbonization (L. T. C. ) followed by hydrogenation  

SciTech Connect

Plants producing 100,000 tons/yr aviation gasoline and 25,000 tons/yr of liquid petroleum gasoline (L.P.G.) by hydrogenation of coal and 100,000 tons/yr of aviation gasoline, 15,000 tons/yr L.P.G., and 912,000 tons/yr of excess L.T.C. coke by L.T.C. followed by hydrogenation of the L.T.C. tar are considered. Specific data are included on L.T.C., specific data for L.T.C. tar hydrogenation, and total coal requirement for L.T.C. of coal and hydrogenation of the L.T.C. tar. Information is also included on hydrogenation of bituminous coal and iron requirements. Three charts show differences between various bituminous coal conversion processes. The iron requirements for L.T.C. and tar hydrogenation was 100,500 tons and for bituminous coal hydrogenation it was 123,300 tons. An input of 1,480,000 tons of L.T.C. coal was calculated. The power coal requirement for L.T.C. and hydrogenation was 1,612,000 tons. The coal requirement for tar hydrogenation was 482,000 tons and 1,130,000 tons for surplus coke and gas. Therefore about 30% of the total coal was used for aviation gasoline and L.P.G. and about 70% for surplus coke and gas.

1943-04-21T23:59:59.000Z

298

U.S. States - Rankings - U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

Rankings Rankings Additional State Rankings Consumption Total Energy per Capita Prices Natural Gas Electricity Environment Carbon Dioxide Emissions Expenditures Total Energy per Capita Production Total Energy Crude Oil Natural Gas Coal Electricity More State Ranking Tables › Notes & Sources Consumption Total Energy per Capita: EIA, State Energy Data System, Total Consumption Per Capita Expenditures Total Energy per Capita: EIA, State Energy Data System, Total Expenditures Per Capita Production Total Energy: EIA, State Energy Data System, Total Energy Production Crude Oil: EIA, Petroleum Supply Annual, Crude Oil Production Natural Gas: EIA, Natural Gas Annual, Natural Gas Gross Withdrawals and Production Coal: EIA, Annual Coal Report, Coal Production and Number of Mines by State

299

Comparison of biomass and coal char reactivities  

SciTech Connect

Char combustion is typically the rate limiting step during the combustion of solid fuels. The magnitude and variation of char reactivity during combustion are, therefore, of primary concern when comparing solid fuels such as coal and biomass. In an effort to evaluate biomass` potential as a sustainable and renewable energy source, the reactivities of both biomass and coal chars were compared using Sandia`s Captive Particle Imaging (CPI) apparatus. This paper summarizes the experimental approach used to determine biomass and coal reactivities and presents results from CPT experiments. The reactivity of six types of char particles, two high-rank coal chars, two low-rank coal chars, and two biomass chars, were investigated using the CPT apparatus. Results indicate that both of the high-rank coal chars have relatively low reactivities when compared with the higher reactivities measured for the low-rank coal and the biomass chars. In addition, extinction behavior of the chars support related investigations that suggest carbonaceous structural ordering is an important consideration in understanding particle reactivity as a function of extent of burnout. High-rank coal chars were found to have highly ordered carbon structures, where as, both low-rank coal and biomass chars were found to have highly disordered carbon structures.

Huey, S.P. [Sandia National Labs., Livermore, CA (United States); Davis, K.A. [Reaction Engineering International, Salt Lake City, UT (United States); Hurt, R.H. [Brown Univ., Providence, RI (United States). Div. of Engineering

1995-08-01T23:59:59.000Z

300

U.S. coal outlook in Asia  

SciTech Connect

Coal exports from the US to Asia are declining over time as a result of (1) increased competition from coal suppliers within the Asia-Pacific region, (2) changing steel making technologies, (3) decreased emphasis on security of coal supplies, and (4) deregulation of the energy industry--particularly electric utilities. There are no major changes on the horizon that are likely to alter the role of the US as a modest coal supplier to the Asia-Pacific region. The downward trend in US coal exports to Asia is expected to continue over the 1997--2010 period. But economic and policy changes underway in Asia are likely to result in periodic coal shortages, lasting a few months to a year, and short term increased export opportunities for US coal. US coal exports to Asia are projected to fluctuate within the following ranges over the 2000--2010 period: 10--17 million tons in total exports, 6--12 million tons in thermal coal exports, and 4--9 million tons in coking coal exports. The most important role for US coal, from the perspective of Asian coal importing countries, is to ensure a major alternative source of coal supplies that can be turned to in the event of unforeseen disruptions in coal supplies from the Asia-Pacific region or South Africa. However, the willingness of consumers to pay a premium to ensure US export capacity is declining, with increased emphasis on obtaining the lowest cost coal supplies.

Johnson, C.J.

1997-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Price of dwindling supply of better-quality coke will trend upward during this decade  

Science Conference Proceedings (OSTI)

This paper discusses the markets for petroleum coke with particular emphasis on the USA. The factors affecting the price of Green Coke are examined. It is considered that the price of any coke is set by the mix of markets available to the market based on demand. However, refiners producing similar quality cokes, will not necessarily receive the same netback price even if their cokes are sold to the same mix of markets. Calcined coke is used almost exclusively by the Aluminium industry thus green coke prices are indirectly tied to those of Aluminium as green coke is the primary carbon source for the calcined coke market.

Fasullo, P.; Tarrillion, T.; Matson, J.

1982-11-08T23:59:59.000Z

302

Quarterly Coal Report - Energy Information Administration  

U.S. Energy Information Administration (EIA) Indexed Site

Quarterly Coal Report Quarterly Coal Report Release Date: October 02, 2013 | Next Release Date: December 2013 | full report Previous Quarterly Coal Data historical data (PDF): 1st quarter 2013 4th quarter 2012 3rd quarter 2012 2nd quarter 2012 1st quarter 2012 4th quarter 2011 3rd quarter 2011 2nd quarter 2011 1st quarter 2011 prior to 2011 Go The Quarterly Coal Report (QCR) provides detailed quarterly data on U.S. coal production, exports, imports, receipts, prices, consumption, quality, stocks, and refined coal. Data on U.S. coke production, consumption, stocks, imports, and exports are also provided. All data for 2011 and prior years are final. All data for 2012 and 2013 are preliminary. Highlights for second quarter 2013: U.S. coal production during second quarter 2013 totaled 243.1

303

Solvent refined coal (SRC) process. Quarterly technical progress report, January 1980-March 1980. [In process streams  

DOE Green Energy (OSTI)

This report summarizes the progress of the Solvent Refined Coal (SRC) project at the SRC Pilot Plant in Fort Lewis, Wahsington, and the Process Development Unit (P-99) in Harmarville, Pennsylvania. After the remaining runs of the slurry preheater survey test program were completed January 14, the Fort Lewis Pilot Plant was shut down to inspect Slurry Preheater B and to insulate the coil for future testing at higher rates of heat flux. Radiographic inspection of the coil showed that the welds at the pressure taps and the immersion thermowells did not meet design specifications. Slurry Preheater A was used during the first 12 days of February while weld repairs and modifications to Slurry Preheater B were completed. Two attempts to complete a material balance run on Powhatan No. 6 Mine coal were attempted but neither was successful. Slurry Preheater B was in service the remainder of the quarter. The start of a series of runs at higher heat flux was delayed because of plugging in both the slurry and the hydrogen flow metering systems. Three baseline runs and three slurry runs of the high heat flux program were completed before the plant was shut down March 12 for repair of the Inert Gas Unit. Attempts to complete a fourth slurry run at high heat flux were unsuccessful because of problems with the coal feed handling and the vortex mix systems. Process Development Unit (P-99) completed three of the four runs designed to study the effect of dissolver L/D ratio. The fourth was under way at the end of the period. SRC yield correlations have been developed that include coal properties as independent variables. A preliminary ranking of coals according to their reactivity in PDU P-99 has been made. Techniques for studying coking phenomenona are now in place.

Not Available

1981-01-01T23:59:59.000Z

304

Investigation of the rank dependence of tar evolution  

SciTech Connect

The objective of this study are to develop an improved understanding of the process of coal tar evolution, its relationship to the structural characteristics of the parent coal, and the dependence of the chemical and physical properties of the tar products on the conditions of devolatilization. Data from this study are expected to allow hypothesis testing and refinements of coal devolatilization models relevant to the pulverized coal combustion process. A range of coal ranks, from a Texas lignite to a Pennsylvania anthracite, are employed in the investigation. In addition, a high temperature polymer, a polyimide, is utilized as an additional reference case. The polyimide serves as a truly polymeric reference material for examining the nitrogen evolution behavior of coal. The samples are subjected to elemental composition determination, infrared absorbance characterization, calorific value measurement, high temperature ash analysis, and maceral composition. Potential tar yields are determined by long hold time heated grid investigations of each coal at a final temperature and heating rate observed to maximize tar yields for the reference coal. Relative tar evolution kinetic behavior is determined by zero hold time heated grid investigations of each coal. 4 refs., 13 figs., 2 tabs.

Freihaut, J.D.; Proscia, W.M.

1990-01-01T23:59:59.000Z

305

Multivariate statistical evaluation of equilibrium methane adsorption isotherms of coal  

SciTech Connect

The adsorption of methane by coals varies over a broad range of values and appears to depend on a complex function related to coal rank. In order to evaluate these variations in methane adsorption 100 coal samples were analyzed. The paper presents some preliminary results of this study based on multivariate statistical evaluation of equilibrium methane adsorption isotherm data, coal petrology, and vitrinite reflectance.

Schwarzer, R.S.; Bayliss, G.S.

1982-01-01T23:59:59.000Z

306

A Different Strategy to Use Low Sulfur Cokes at Alumar Coke ...  

Science Conference Proceedings (OSTI)

This paper presents an alternative strategy to Alumar's blending facility. ... from Coal (3) - Carbonization Properties of Hypercoal Blended with Coal-Tar Pitch.

307

Design and economics for low pressure delayed coking  

Science Conference Proceedings (OSTI)

The current refining trend is to run heavier crudes with a growing emphasis on bottom of the barrel resid upgrading. In general, a reduction in light crude availability and a corresponding increase in the price differential between light and heavy crudes makes the processing of heavier crudes highly attractive. US Department of Energy data indicate that between 1985 and 1989 the average API gravity of crude being processed in the US dropped from 32.46 to 32.14 degrees while the average sulfur content increased 0.15 wt%. As crudes get heavier and the demand for light, clean fuels increases, expanded resid upgrading capacity is rapidly becoming a necessity for most refiners. The coking process has existed since the early 1900's, and delayed coking is still favored as a relatively low cost resid upgrading option. Consistent with the objective of maximizing resid conversion, recent trends in delayed coking include maximizing liquid yields and reducing the production of petroleum coke by operating coke drums at lower pressures. Typically, the incremental liquid gained at lower pressures is worth significantly more than coke and can be further upgraded to lighter products. In addition, the driving force to minimize coke make has been accelerated by the worsening quality of crude oils. As vacuum resid feedstocks become heavier, contaminants in coke such as sulfur and metals are increased, making the coke less marketable. In the case of an existing coker which is capacity limited by coke make, a reduction in coke yield can be quite valuable. This paper discusses the design features and presents the economics associated with building a low pressure delayed coker with a 15 psig coke drum operating pressure versus a more conventional 25 psig design.

Bansal, B.B.; Moretta, J.C.; Gentry, A.R. (M.W. Kellogg Co., Houston, TX (United States))

1993-01-01T23:59:59.000Z

308

Vibrated Bulk Density (VBD) of Calcined Petroleum Coke and ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Vibrated bulk density (VBD) is a quantitative measurement used in the aluminum industry to evaluate the density of calcined petroleum coke.

309

Impurity Removal from Petroleum Coke - Programmaster.org  

Science Conference Proceedings (OSTI)

Presentation Title, Impurity Removal from Petroleum Coke. Author(s), Alexandre Gagnon, Hans Darmstadt, Nigel Backhouse, Esme Ryan, Laurence Dyer, David ...

310

Vibrated Bulk Density (VBD) of Calcined Petroleum Coke and ...  

Science Conference Proceedings (OSTI)

Presentation Title, Vibrated Bulk Density (VBD) of Calcined Petroleum Coke and Implications of Changes in the ASTM Method D4292. Author(s), Bill Spencer, ...

311

Coking is a refinery process that produces 19% of finished ...  

U.S. Energy Information Administration (EIA)

Financial market analysis and financial data ... hydraulically cutting the coke using water. ... to a heater as a fluidized solid where some of it is ...

312

Influence of Petroleum Coke Sulphur Content on the Sodium ... - TMS  

Science Conference Proceedings (OSTI)

Feb 1, 1993 ... Influence of Petroleum Coke Sulphur Content on the Sodium Sensitivity of Carbon Anodes by S.M. Hume ... TMS Student Member price: 0.00.

313

Determination of Coke Calcination Level and Anode Baking Level  

Science Conference Proceedings (OSTI)

Presentation Title, Determination of Coke Calcination Level and Anode Baking Level – Application and Reproducibility of Lc Based Methods. Author(s), Stein ...

314

Modélisation thermomécanique d'un piédroit de four à coke.  

E-Print Network (OSTI)

??Inscrite dans le cadre du projet européen Coke Oven Operating Limits, cette thèse porte sur la modélisation thermomécanique d'un piédroit de cokerie. Le piédroit est… (more)

Landreau, Matthieu

2009-01-01T23:59:59.000Z

315

Discrete Element Method Applied to the Vibration Process of Coke ...  

Science Conference Proceedings (OSTI)

In the present work, effects of particle shape and size distribution on vibrated bulk density (VBD) of dry coke samples have been investigated. Discrete Element ...

316

Increasing Coke Impurities – Is this Really a Problem for Metal ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Increases in the Vanadium and Nickel content of anode grade coke in recent years have predictably affected smelter metal quality. This has now ...

317

Fractal characterization of seepage-pores of coals from China: An investigation on permeability of coals  

Science Conference Proceedings (OSTI)

To better understand the characteristics of seepage-pores (pore radius larger than 100 nanometers) and their influence on the permeability of coals, we have conducted fractal analyses for 34 fresh coal samples (mean maximum vitrinite reflectance R"o","m"a"x ... Keywords: Coal rank, Coalbed methane (CBM), Fractal characterization, Mercury porosimetry, Permeability

Yanbin Yao; Dameng Liu; Dazhen Tang; Shuheng Tang; Wenhui Huang; Zhihua Liu; Yao Che

2009-06-01T23:59:59.000Z

318

Firing of pulverized solvent refined coal  

SciTech Connect

A burner for the firing of pulverized solvent refined coal is constructed and operated such that the solvent refined coal can be fired successfully without any performance limitations and without the coking of the solvent refined coal on the burner components. The burner is provided with a tangential inlet of primary air and pulverized fuel, a vaned diffusion swirler for the mixture of primary air and fuel, a center water-cooled conical diffuser shielding the incoming fuel from the heat radiation from the flame and deflecting the primary air and fuel steam into the secondary air, and a watercooled annulus located between the primary air and secondary air flows.

Lennon, Dennis R. (Allentown, PA); Snedden, Richard B. (McKeesport, PA); Foster, Edward P. (Macungie, PA); Bellas, George T. (Library, PA)

1990-05-15T23:59:59.000Z

319

Prediction of Coke Quality in Ironmaking Process: A Data Mining Approach.  

E-Print Network (OSTI)

??Coke is an indispensable material in Ironmaking process by blast furnace. To provide good and constant quality coke for stable and efficient blast furance operation… (more)

Hsieh, Hsu-huang

2006-01-01T23:59:59.000Z

320

Dry purification of aspirational air in coke-sorting systems with wet slaking of coke  

Science Conference Proceedings (OSTI)

Coke transportation after wet slaking is accompanied by the release of dust in the production building and in the surrounding atmosphere. Wet methods are traditionally used to purify very humid air. Giprokoks has developed designs for highly efficient dry dust-removal methods in such conditions.

T.F. Trembach; A.G. Klimenko [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Detecting moving fires on coal conveyors  

SciTech Connect

To comply with certain elements of the Clean Air Act Amendments of 1990, a number of utilities operating coal fired power plants have switched to low-rank bituminous and semi-bituminous coals as an alternative to other fuels like natural gas. Power plants firing and handling this variety of coal may be extremely prone to fires nd explosions as the coal is conveyed from storage on to the boilers due to a phenomenon known as spontaneous combustion. The American Society of Testing for Materials ranks coals by their tendency to oxidize. The lower the coal`s rank, the greater its tendency to absorb oxygen and, consequently, the greater its tendency to spontaneously combust. This unique property creates a new type of fire and explosion hazard not previously experienced by many coal-fired plants. Fires involving coal crushers, storage silos, conveyors, bunkers and pulverizer mills generally occur as a result of two ignition sources: spontaneous combustion (self-heating) of coal and frictional heating of the coal`s conveyance system.

NONE

1995-09-01T23:59:59.000Z

322

Annual Coal Distribution Tables  

U.S. Energy Information Administration (EIA) Indexed Site

Domestic Distribution of U.S. Coal by Destination State, Domestic Distribution of U.S. Coal by Destination State, Consumer, Destination and Method of Transportation, 2001 (Thousand Short Tons) DESTINATION: Alabama State of Origin by Method of Transportation Electricity Generation Coke Plants Industrial Plants (Except Coke) Residential and Commercial Total Alabama 7,212 375 6,032 3 13,622 Railroad 2,613 170 4,607 - 7,390 River 3,867 - - - 3,867 Truck 732 205 1,424 3 2,365 Illinois 1,458 - - * 1,458 Railroad 167 - - - 167 River 1,291 - - - 1,291 Truck - - - * * Kentucky Total 2,277 - 262 - 2,539 Railroad 1,928 - 165 - 2,093 River 349 - 83 - 432 Truck - - 14 - 14 Eastern 843 - 262 - 1,105 Railroad 843 - 165 - 1,008 River - - 83 - 83 Truck - - 14 - 14 Western 1,435 - - - 1,435 Railroad 1,086 - - - 1,086 River 349 - - - 349 Pennsylvania Total 242 - 62 - 304 Great Lakes - - 60 - 60 Railroad - - * - * River 242 - -

323

U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Origin Origin State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2012 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2012 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,714 158 238 - 2,110 Alabama Railroad 1,056 12 45 - 1,113 Alabama River 464 - - - 464 Alabama Truck 194 146 193 - 532 Georgia Total s - - - s Georgia Truck s - - - s

324

U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Destination Destination State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2012 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2012 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,837 167 196 - 2,200 Alabama Railroad 1,051 25 10 - 1,087 Alabama River 730 - - - 730 Alabama Truck 56 141 186 - 384 Colorado Total 456 - 16 - 472

325

U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Origin Origin State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2012 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic Coal Distribution, by Origin State, 4th Quarter 2012 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,226 162 274 - 1,662 Alabama Railroad 803 17 22 - 842 Alabama River 384 - - - 384 Alabama Truck 39 144 252 - 436 Georgia Total s - - - s Georgia Truck s - - - s Indiana Total

326

U.S. Energy Information Administration | Annual Coal Distribution Report 2011  

Gasoline and Diesel Fuel Update (EIA)

Destination Destination State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Annual Coal Distribution Report 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 6,982 679 1,278 - 8,939 Alabama Railroad 4,400 20 286 - 4,706 Alabama River 1,885 - - - 1,885 Alabama Truck 696 659 992 - 2,347 Colorado Total 1,884 2 - - 1,885 Colorado Railroad

327

U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2013  

Gasoline and Diesel Fuel Update (EIA)

Origin Origin State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2013 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic Coal Distribution, by Origin State, 3rd Quarter 2013 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,198 151 353 - 1,702 Alabama Railroad 796 26 20 - 842 Alabama River 307 - 3 - 310 Alabama Truck 96 125 330 - 551 Georgia Total - - 3 - 3 Georgia Truck - - 3 - 3 Indiana Total

328

U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Destination Destination State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2012 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2012 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,714 158 238 - 2,110 Alabama Railroad 1,056 12 45 - 1,113 Alabama River 464 - - - 464 Alabama Truck 194 146 193 - 532 Colorado Total 275 - - - 275

329

U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2013  

U.S. Energy Information Administration (EIA) Indexed Site

Destination Destination State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2013 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic Coal Distribution, by Destination State, 2nd Quarter 2013 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,066 210 301 - 1,577 Alabama Railroad 495 116 26 - 638 Alabama River 512 - 2 - 513 Alabama Truck 59 94 273 - 426 Colorado Total 97 - - - 97 Colorado

330

U.S. Energy Information Administration | Annual Coal Distribution Report 2011  

Gasoline and Diesel Fuel Update (EIA)

Origin Origin State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Annual Coal Distribution Report 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 6,982 679 1,278 - 8,939 Alabama Railroad 4,400 20 286 - 4,706 Alabama River 1,885 - - - 1,885 Alabama Truck 696 659 992 - 2,347 Georgia Total s - 5 - 5 Georgia Truck s - 5 - 5 Indiana Total - 221 -

331

U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Destination Destination State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2012 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic Coal Distribution, by Destination State, 4th Quarter 2012 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,226 162 274 - 1,662 Alabama Railroad 803 17 22 - 842 Alabama River 384 - - - 384 Alabama Truck 39 144 252 - 436 Colorado Total 301 - 25 - 326 Colorado

332

U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2013  

U.S. Energy Information Administration (EIA) Indexed Site

Origin Origin State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2013 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic Coal Distribution, by Origin State, 2nd Quarter 2013 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,066 210 301 - 1,577 Alabama Railroad 495 116 26 - 638 Alabama River 512 - 2 - 513 Alabama Truck 59 94 273 - 426 Georgia Total - - 2 - 2 Georgia Truck - - 2 - 2 Indiana Total

333

U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2013  

U.S. Energy Information Administration (EIA) Indexed Site

Origin Origin State ____________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2013 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic Coal Distribution, by Origin State, 1st Quarter 2013 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 807 158 282 - 1,247 Alabama Railroad 449 71 14 - 534 Alabama River 358 - - - 358 Alabama Truck - 87 267 - 354 Indiana Total - 164 - - 164 Indiana Railroad - 164 - - 164

334

Investigation of the rank dependence of tar evolution  

SciTech Connect

The objectives of this study are to develop an improved understanding of the process of coal tar evolution, its relationship to the structural characteristics of the parent coal, and the dependence of the chemical and physical properties of the tar products on the conditions of devolatilization. Data from this study are expected to allow hypothesis testing and refinements of coal devolatilization models relevant to the pulverized coal combustion process. The program is divided into seven major technical areas: tar evolution rates in rapid heating conditions; molecular weight and vapor pressure characteristics of tars; chemical structure and calorific values of tars; influence of interphase mass transport phenomena; gas phase secondary reactions of primary'' tars; parent coal nitrogen evolution during devolatilization; and model hypothesis testing. A range of coal ranks, from a Texas lignite to a Pennsylvania anthracite, are employed in the investigation. In addition, a high temperature polymer, a polyimide, is utilized as an additional reference case. The polyimide serves as a truly polymeric reference material for examining the nitrogen evolution behavior of coal. The samples are subjected to elemental composition determination, infrared absorbance characteristics, calorific value, high temperature ash analysis, and maceral composition. Consideration is being given to NMR analysis as well as tetrahydrofuran (THF) solubility. Results are discussed. 4 refs., 27 figs., 4 tabs.

Freihaut, J.D.; Proscia, W.M.

1990-01-01T23:59:59.000Z

335

Improving Ranking Using Quantum Probability  

E-Print Network (OSTI)

The paper shows that ranking information units by quantum probability differs from ranking them by classical probability provided the same data used for parameter estimation. As probability of detection (also known as recall or power) and probability of false alarm (also known as fallout or size) measure the quality of ranking, we point out and show that ranking by quantum probability yields higher probability of detection than ranking by classical probability provided a given probability of false alarm and the same parameter estimation data. As quantum probability provided more effective detectors than classical probability within other domains that data management, we conjecture that, the system that can implement subspace-based detectors shall be more effective than a system which implements a set-based detectors, the effectiveness being calculated as expected recall estimated over the probability of detection and expected fallout estimated over the probability of false alarm.

Melucci, Massimo

2011-01-01T23:59:59.000Z

336

Improving the scheme for final comminution of the coal charge  

Science Conference Proceedings (OSTI)

Proceeding from laboratory and pilot plant tests of the screening of fine classes of coal under the effect of gravitational forces on stationary grates, and also from the experience of the Krivoi Rog and Kommunarsk Coke Works, the coal preparation division of OKhMK (Orsk-Khalilovo Intergrated Iron and Steel Works) adopted an industrial scheme of comminution of the coal before coking, screening out the fine classes ahead of the hammer crushers. In the bottom of the feeder chute a stamped screen was installed (dimensions 2100 x 1600 x 5 mm with apertures of 40 x 100 mm) with the large side perpendicular to the flow of coal. The distance between the apertures on the small side of the screen was 20 mm, on the large side 15 mm; the inclination was 60/sup 0/. The overscreen product enters the crusher, and the underscreen product is injected into the crushed charge without comminution.

Antonov, A.V.; Zagoruiko, S.I.; Vorob'ev, S.E.; Kress, L.A.; Stepura, P.G.

1983-01-01T23:59:59.000Z

337

"Code(a)","End Use","Electricity(b)","Fuel Oil","Diesel Fuel(c)"," Gas(d)","NGL(e)","Coke and Breeze)"  

U.S. Energy Information Administration (EIA) Indexed Site

3 Relative Standard Errors for Table 5.3;" 3 Relative Standard Errors for Table 5.3;" " Unit: Percents." " "," " " "," ",," ","Distillate"," "," " " "," ","Net Demand",,"Fuel Oil",,,"Coal" "NAICS"," ","for ","Residual","and","Natural","LPG and","(excluding Coal" "Code(a)","End Use","Electricity(b)","Fuel Oil","Diesel Fuel(c)"," Gas(d)","NGL(e)","Coke and Breeze)" ,,"Total United States" " 311 - 339","ALL MANUFACTURING INDUSTRIES" ,"TOTAL FUEL CONSUMPTION",2,3,6,2,4,9

338

U.S. Exports to Saudi Arabia of Petroleum Coke (Thousand ...  

U.S. Energy Information Administration (EIA)

Petroleum Coke Exports by Destination; Saudi Arabia Exports of Crude Oil and Petroleum Products by Destination ...

339

U.S. Exports to South Africa of Petroleum Coke (Thousand ...  

U.S. Energy Information Administration (EIA)

Petroleum Coke Exports by Destination; South Africa Exports of Crude Oil and Petroleum Products by Destination ...

340

Coke profile and effect on methane/ethylene conversion process  

E-Print Network (OSTI)

The objective of this study was to investigate the coke profile with respect to time on stream and the change of product distribution due to catalyst deactivation. A fixed bed reactor was used to conduct this investigation. A series of runs were conducted using the Engelhard catalyst with fixed operating conditions. The only variable was the time on stream of each run. Six experiments were conducted starting with one hour time on stream up to six hours with an increment of one hour. In each experiment data on product flow rate, reactor temperature, and product distribution were collected. And at the end of each run, the amount of coke deposited on the catalyst was measured. Hydrogen concentration in the product distribution decreased as a function of time on stream. On the other hand, low and high end hydrocarbons increased with time on stream. The coke deposition kinetics for the catalyst at the process operating conditions can be estimated using Voorhies' empirical formula. The coke profile inside the reactor showed that the coke reaction follows a parallel mechanism to the main reaction. Ethylene was found to be the main coke precursor; however, the participation of methane in the coke reaction could not be neglected.

Al-Solami, Bandar

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Coke mineral transformations in the experimental blast furnace  

SciTech Connect

Blast furnace efficiency may be improved by optimizing coke reactivity. Some but not all forms of mineral matter in the coke modify its reactivity, but changes in mineral matter that occur within coke while in the blast furnace have not been fully quantified. To determine changes in mineral matter forms in the blast furnace, coke samples from a dissection study in the LKAB experimental blast furnace (EBF) were characterized using SEM/EDS analysis, EPMA (microprobe), and low-temperature ashing/quantitative XRD analysis. Variations in alkali concentration, particularly potassium, dominated the compositional changes. At high concentrations of potassium, the mineral matter was largely potassium-bearing but even more potassium was diffused throughout the coke and not associated with mineral matter. There was little difference in potassium concentration between the core and surface of the coke pieces, suggesting that potassium diffused rapidly through the whole coke. Iron, calcium, silicon, and aluminum concentrations were relatively constant in comparison, although the mineralogy of all elements changed significantly with changing temperature. 23 refs., 20 figs., 9 tabs.

Kelli Kazuberns; Sushil Gupta; Mihaela Grigore; David French; Richard Sakurovs; Mats Hallin; Bo Lindblom; Veena Sahajwalla [University of New South Wales, Sydney, NSW (Australia). Cooperative Research Centre for Coal in Sustainable Development (CCSD)

2008-09-15T23:59:59.000Z

342

Innovative coal gas cleaning at Sparrows Point Coal Chemical Plant, Maryland for Bethlehem Steel Corporation  

SciTech Connect

In response to the Clean Coal II solicitation, Bethlehem Steel Corporation (BSC) submitted a proposal to the DOE in May 1988. The proposal submitted by BSC describes a Unique integration of commercial technologies developed by Davy/Still Otto to clean coke oven gas being produced at its Sparrows Point, Maryland steel plant. This innovative coke oven gas cleaning system combines secondary gas cooling with hydrogen sulfide and ammonia removal, hydrogen sulfide and ammonia recovery, ammonia destruction and sulfur recovery to produce a cleaner fuel gas for plant use. The primary environmental benefit associated with employing this innovative coke oven gas cleaning system is realized when the fuel gas is burned within the steel plant. Emissions of sulfur dioxide are reduced by more than 60 percent. The removal, recovery and destruction of ammonia eliminates the disposal problems associated with an unmarketable ammonium sulfate by-product. Significant reduction in benzene and hydrogen cyanide emissions are also obtained.

Antrobus, K.; Platts, M. (Davy/Still Otto, Pittsburgh, PA (US)); Harbold, L. (Bethlehem Steel Corp., PA (USA)); Kornosky, R. (Office of Clean Coal Technology, US DOE, Pittsburgh, PA (US))

1990-01-01T23:59:59.000Z

343

Analysis of photographic records of coal pyrolysis  

SciTech Connect

Bituminous coals upon heating undergo melting and pyrolytic decomposition with significant parts of the coal forming an unstable liquid that can escape from the coal by evaporation. The transient liquid within the pyrolyzing coal causes softening or plastic behavior that can influence the chemistry and physics of the process. Bubbles of volatiles can swell the softened coal mass in turn affecting the combustion behavior of the coal particles. The swelling behavior of individual coal particles has to be taken into account both as the layout as well as for the operation of pyrolysis, coking and performance of coal-fired boilers. Increased heating rates generally increase the amount of swelling although it is also known that in some cases, even highly swelling coals can be transformed into char with no swelling if they are heated slowly enough. The swelling characteristics of individual coal particles have been investigated by a number of workers employing various heating systems ranging from drop tube and shock tube furnaces, flow rate reactors and electrical heating coils. Different methods have also been employed to determine the swelling factors. The following sections summarize some of the published literature on the subject and outline the direction in which the method of analysis will be further extended in the study of the swelling characteristics of hvA bituminous coal particles that have been pyrolyzed with a laser beam.

Dodoo, J.N.D.

1991-10-01T23:59:59.000Z

344

Quarterly coal report, October--December 1997  

Science Conference Proceedings (OSTI)

The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities. This report presents detailed quarterly data for october through December 1997 and aggregated quarterly historical data for 1991 through the third quarter of 1997. Appendix A displays, from 1991 on, detailed quarterly historical coal imports data, as specified in Section 202 of the energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons. To provide a complete picture of coal supply and demand in the US, historical information has been integrated in this report. 8 figs., 73 tabs.

NONE

1998-05-01T23:59:59.000Z

345

Determination of the effect of different additives in coking blends using a combination of in situ high-temperature {sup 1}H NMR and rheometry  

SciTech Connect

High-temperature {sup 1}H NMR and rheometry measurements were carried out on 4:1 wt/wt blends of a medium volatile bituminous coal with two anthracites, two petroleum cokes, charcoal, wood, a low-temperature coke breeze, tyre crumb, and active carbon to determine the effects on fluidity development to identify the parameters responsible for these effects during pyrolysis and to study possible relationships among the parameters derived from these techniques. Positive, negative, and neutral effects were identified on the concentration of fluid material. Small positive effects (ca. 5-6%) were caused by blending the coal with petroleum cokes. Charcoal, wood, and active carbon all exerted negative effects on concentration (18-27% reduction) and mobility (12-25% reduction in T2) of the fluid phase, which have been associated with the inert character and high surface areas of these additives that adsorb the fluid phase of the coal. One of the anthracites and the low-temperature coke breeze caused deleterious effects to a lesser extent on the concentration (7-12%) and mobility (13-17%) of the fluid material, possibly due to the high concentration of metals in these additives (ca. 11% ash). Despite the high fluid character of tyre crumb at the temperature of maximum fluidity of the coal (73%), the mobility of the fluid phase of the blend was lower than expected. The comparison of {sup 1}H NMR and rheometry results indicated that to account for the variations in minimum complex viscosity for all the blends, both the maximum concentration of fluid phase and the maximum mobility of the fluid material had to be considered. For individual blends, two exponential relationships have been found between the complex viscosity and the concentration of solid phase in both the softening and resolidification stages but the parameters are different for each blend. 30 refs., 8 figs., 5 tabs.

Miguel C. Diaz; Karen M. Steel; Trevor C. Drage; John W. Patrick; Colin E. Snape [Nottingham University, Nottingham (United Kingdom). Nottingham Fuel and Energy Centre, School of Chemical, Environmental and Mining Engineering

2005-12-01T23:59:59.000Z

346

New process for coke-oven gas desulfurization  

SciTech Connect

With the EPA reclassifying spent iron oxide as a hazardous waste material in 1990, an alternative technology was sought for desulfurizing coke-oven gas. Vacasulf technology was adopted for reasons that included: producing of coke battery heating gas without further polishing and high-quality elemental sulfur; lowest operating cost in comparison with other methods; no waste products; and integrates with existing ammonia destruction facility. Vacasulf requires a single purchased material, potassium hydroxide, that reacts with carbon dioxide in coke-oven gas to form potassium carbonate which, in turn, absorbs hydrogen sulfide. Operation of the system has been successful following the resolution of relatively minor start-up problems.

Currey, J.H. [Citizens Gas and Coke Utility, Indianapolis, IN (United States)

1995-10-01T23:59:59.000Z

347

Variation in coke properties within the blast-furnace shop  

SciTech Connect

In active production at OAO Magnitogorskii Metallurgicheskii Kombinat (MMK), samples of melt materials were taken during shutdown and during planned repairs at furnaces 1 and 8. In particular, coke was taken from the tuyere zone at different distances from the tuyere tip. The mass of the point samples was 2-15 kg, depending on the sampling zone. The material extracted from each zone underwent magnetic separation and screening by size class. The resulting coke sample was averaged out and divided into parts: one for determining the granulometric composition and mechanical strength; and the other for technical analysis and determination of the physicochemical properties of the coke.

E.N. Stepanov; I.I. Mel'nikov; V.P. Gridasov; A.A. Stepanova [OAO Magnitogorskii Metallurgicheskii Kombinat (MMK), Magnitogorsk, (Russian Federation)

2009-04-15T23:59:59.000Z

348

Robust Rankings for College Football  

E-Print Network (OSTI)

Oct 11, 2011 ... At the end of the regular season, multiple human-poll and computer ... State are so close in the overall BCS rankings (.0063) that this one error.

349

Gulf Coast (PADD 3) Catalyst Petroleum Coke Consumed at ...  

U.S. Energy Information Administration (EIA)

Gulf Coast (PADD 3) Catalyst Petroleum Coke Consumed at Refineries (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 ...

350

Comprehensive Effect of Coke Breeze and Limestone Particle Size ...  

Science Conference Proceedings (OSTI)

Chemical Enrichment of Precious Metals in Iron Sulfides Using Microwave Energy · Chloridizing ... Co-Gasification Behavior of Metallurgical Coke with High and Low Reactivity .... Thermal Plasma Torches for Metallurgical Applications.

351

U.S. Ending Stocks of Petroleum Coke (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

U.S. Ending Stocks of Petroleum Coke (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1980's: 4,502: ...

352

U.S. Exports of Petroleum Coke (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

U.S. Exports of Petroleum Coke (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1980's: 50,292: ...

353

U.S. Petroleum Coke Consumed at Refineries (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

U.S. Petroleum Coke Consumed at Refineries (Thousand Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1980's: ...

354

U.S. Exports of Petroleum Coke (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

U.S. Exports of Petroleum Coke (Thousand Barrels) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1981: 2,754: 4,394: 3,722: 3,995: 5,211: ...

355

U.S. Petroleum Coke Stocks at Refineries (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

U.S. Petroleum Coke Stocks at Refineries (Thousand Barrels) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1993: 10,747: 11,072: 11,444: ...

356

Nippon Coke and Engineering Sumitomo Corp JV | Open Energy Information  

Open Energy Info (EERE)

and Engineering Sumitomo Corp JV Jump to: navigation, search Name Nippon Coke and Engineering & Sumitomo Corp JV Place Tokyo, Japan Zip 135-6007 Product Japan-based natural...

357

Problem of improving coke oven gas purification systems  

Science Conference Proceedings (OSTI)

A discussion of the problems of improving desulfurization processes of coke oven gas was presented. Of particular interest were control systems and increasing capacity of the coke ovens. Included in the discussion were the vacuum-carbonate and arsenic-soda sulfur removal systems. Problems involved with these systems were the number of treatment operations, the volume of the reagents used, and the operation of equipment for naphthalene and cyanide removal.

Goldin, I.A.

1982-01-01T23:59:59.000Z

358

Priorities in the design of chemical shops at coke plants  

SciTech Connect

Recent trends in the design of chemical equipment at coke plants are described, through the lens of experience at Giprokoks. The main priorities were to improve the removal of impurities from coke oven gas; to improve equipment design on the basis of new materials; to reduce reagent consumption; to reduce the materials and energy consumed in the construction of new equipment; and to minimize impacts on the environment and worker health. Some technological equipment is briefly characterized.

V.I. Rudyka; Y.E. Zingerman; V.V. Grabko; L.A. Kazak [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

359

Regulation of coal polymer degradation by fungi. Eighth quarterly report, [January--March 1996  

DOE Green Energy (OSTI)

Progress is reported on solubilization of low-rank coal by enzyme activity derived from Trametes versicolor or P. chrysosporium. Specifically during the reporting period efforts were directed towards the determining the effect of pH on solubilization of leonardite, the role of laccase in low coal solubilization and metabolism, the decolorization of soluble coal macromolecule by P. chrysosprium and T. versicolor in solid agar gel, and the solubilization of low rank coal in slurry cultures and solid phase reactors.

Irvine, R.L. [Notre Dame Univ., IN (United States). Dept. of Civil Engineering and Geological Sciences; Bumpus, J.A. [University of Northern Iowa, Cedar Falls, IA (United States). Dept. of Chemistry

1996-07-28T23:59:59.000Z

360

The use of solid-state NMR techniques for the analysis of water in coal and the effect of different coal drying techniques on the structure and reactivity of coal. Quarterly report, June 1--August 31, 1993  

SciTech Connect

One area for improvement in the economics of coal liquefaction is coal drying, particularly for the lower rank coals. However, there is considerable evidence to show that drying has a detrimental effect on the liquefaction behavior of coals. Regarding the liquefaction of coal, there does not appear to have been any systematic study of the methods of coal drying on coal structure and the role water plays in enhancing or lessening coal reactivity toward liquefaction. To conduct this study two coals, the North Dakota Beulah Zap lignite and the Utah Blind Canyon coals were chosen. These coals represent a low and high rank coal, respectively. In addition, the Beulah Zap lignite has a high moisture content whereas the Blind Canyon coal (hvA) bituminous has a very low moisture content. The overall objectives of this study are to develop a nuclear magnetic resonance (NMR) method for measuring the water in coal, to measure the changes in coal structure that occur during coal drying, to determine what effect water has on retrograde/condensation reactions, and to determine the mechanism by which water may impact coal reactivity toward liquefaction. Different methods of drying are being investigated to determine if drying can be accomplished without destroying coal reactivity toward liquefaction. The objectives for this quarterly report period were (1) to measure the volumetric swelling ratio for initial and chemically-dried coals and (2) to conduct preliminary experiments concerning the exchange of water in coal with deuterium oxide (D{sub 2}O).

Netzel, D.A.

1993-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Coal is a combustible sedimentary rock and a valuable economic resource. During the Pennsylvanian Period  

E-Print Network (OSTI)

Coal is a combustible sedimentary rock and a valuable economic resource. During the Pennsylvanian of years produced the bituminous coals currently found in southwestern Indiana. Bituminous coals in Indiana currently ranks as the seventh-largest coal-producing state in the nation and has an estimated 17.57 billion

Polly, David

362

Potential for Coal-to-Liquids Conversion in the U.S.-Resource Base  

E-Print Network (OSTI)

Potential for Coal-to-Liquids Conversion in the U.S.-Resource Base Gregory D. Croft1 and Tad W the multi-Hubbert curve analysis to coal production in the United States, we demonstrate that anthracite production of this highest-rank coal. The pro- duction of bituminous coal from existing mines is about 80

Patzek, Tadeusz W.

363

U.S. Energy Information Administration | Annual Coal Report 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Average Price of Coal Delivered to End Use Sector by Census Division and State, 2012 and 2011 Average Price of Coal Delivered to End Use Sector by Census Division and State, 2012 and 2011 (dollars per short ton) U.S. Energy Information Administration | Annual Coal Report 2012 Table 34. Average Price of Coal Delivered to End Use Sector by Census Division and State, 2012 and 2011 (dollars per short ton) U.S. Energy Information Administration | Annual Coal Report 2012 2012 2011 Annual Percent Change Census Division and State Electric Power 1 Other Industrial Coke Commercial and Institutional Electric Power 1 Other Industrial Coke Commercial and Institutional Electric Power 1 Other Industrial Coke Commercial and Institutional New England 88.32 165.17 - - 87.62 w - - 0.80 w - - Connecticut 80.11 - - - 69.29 - - - 15.62 - - - Maine 189.84 w - - 162.19 w - - 17.05 13.93 - - Massachusetts 75.71 w - - 87.17

364

file://C:\Documents%20and%20Settings\ICR\My%20Documents\Coal\Di  

U.S. Energy Information Administration (EIA) Indexed Site

Data For: 2002 Data For: 2002 Next Release Date: Summer 2004 Home > Coal > Annual Coal Distribution > Coal Destination Map > Domestic Distribution by Destination: Alaska Domestic Distribution of U.S. Coal by Destination State, Consumer, Destination and Method of Transportation, 2002 (Thousand Short Tons) State of Origin by Method of Transportation Electricity Generation Coke Plants Industrial Plants (Except Coke) Residential and Commercial Total Destination: Alaska Alaska 376 - - 471 847 Railroad 376 - - 471 847 Truck - - - * * State Total 376 - - 471 847 Railroad 376 - - 471 847 Truck - - - * * See footnotes at end of table. EIA Home Page 1 of 1 Domestic Distribution of U.S. Coal by Destination State, Consumer, Destination and Method of Transpo... Data For: 2002 Next Release Date: Summer 2004

365

Quarterly coal report, January--March 1994  

SciTech Connect

The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for January through March 1994 and aggregated quarterly historical data for 1986 through the fourth quarter of 1993. Appendix A displays, from 1986 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

Not Available

1994-08-24T23:59:59.000Z

366

A similarity measure for indefinite rankings  

Science Conference Proceedings (OSTI)

Ranked lists are encountered in research and daily life and it is often of interest to compare these lists even when they are incomplete or have only some members in common. An example is document rankings returned for the same query by different search ... Keywords: Rank correlation, probabilistic models, ranking

William Webber; Alistair Moffat; Justin Zobel

2010-11-01T23:59:59.000Z

367

Rank three bipartite entangled states are distillable  

E-Print Network (OSTI)

We prove that the bipartite entangled state of rank three is distillable. So there is no rank three bipartite bound entangled state. By using this fact, We present some families of rank four states that are distillable. We also analyze the relation between the low rank state and the Werner state.

Lin Chen; Yi-Xin Chen

2008-03-07T23:59:59.000Z

368

Quantitative in-situ measurements of sodium release during the combustion of single coal particles using planar laser induced fluorescence.  

E-Print Network (OSTI)

??The release of sodium from low rank coal during combustion is known to be an important factor in the phenomena of fouling and corrosion in… (more)

van Eyk, Philip Joseph

2011-01-01T23:59:59.000Z

369

Hydrodesulfurization of Fluid Catalytic Cracking Decant Oils for the Production of Low-sulfur Needle Coke Feedstocks.  

E-Print Network (OSTI)

??Needle coke, produced by the delayed coking of fluid catalytic cracking decant oils, is the primary filler used in the production of graphite electrodes. The… (more)

Wincek, Ronald

2013-01-01T23:59:59.000Z

370

Table Search (or Ranking Tables)  

E-Print Network (OSTI)

Table Search (or Ranking Tables) Alon Halevy Google DBRank @ ICDE March 1, 2010 #12;Structured Data organizations Requires infrastructure, concerns about losing control Hard to find structured data via search Search #1 store locations used cars radio stations patents recipes · Deep = not accessible through

Halevy, Alon

371

Urinary 1-hydroxypyrene in nonsmokers: a biomarker for coke smoke exposure and general urban PAH exposure.  

E-Print Network (OSTI)

??This dissertation research examined the validity of urinary 1-OHP as a biomarker of PAH for coke production workers and non-coke oven workers in Anshan City,… (more)

Han, In-Kyu

2008-01-01T23:59:59.000Z

372

New packing in absorption systems for trapping benzene from coke-oven gas  

SciTech Connect

The efficiency of benzene removal from coke-oven gas in absorption units OAO Alchevskkoks with new packing is assessed.

V.V. Grabko; V.M. Li; T.A. Shevchenko; M.A. Solov'ev [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

373

Reactivity of coals under coprocessing conditions  

DOE Green Energy (OSTI)

In the recent years greater interest has developed for processes involving coal and petroleum fractions to produce distillate fuels. Coprocessing is especially attractive as a direct liquefaction process because it involves the use of heavy petroleum fractions, so both coal and heavy petroleum resids are upgraded simultaneously. The main distinction of coprocessing from other direct liquefaction processes is that coprocessing is more complex from a chemical standpoint than direct liquefaction processes which use traditional solvents, due to the greater variety of hydrocarbons (aromatic from the coal and aliphatics from the petroleum) present in the system. Therefore, need arises for better understanding of the chemical and physical interactions during coprocessing. The aim of the present study is to examine the influence of reaction conditions, coal and petroleum resid properties as well as the compatibility of the coal/petroleum resid pairs in terms of structural components on total coal conversion. Special focus will be given to the reactivity of coals and interaction of the coal and resid which lead to anisotropic coke.

Tomic, J.; Schobert, H.H.

1992-06-01T23:59:59.000Z

374

Reactivity of coals under coprocessing conditions  

DOE Green Energy (OSTI)

In the recent years greater interest has developed for processes involving coal and petroleum fractions to produce distillate fuels. Coprocessing is especially attractive as a direct liquefaction process because it involves the use of heavy petroleum fractions, so both coal and heavy petroleum resids are upgraded simultaneously. The main distinction of coprocessing from other direct liquefaction processes is that coprocessing is more complex from a chemical standpoint than direct liquefaction processes which use traditional solvents, due to the greater variety of hydrocarbons (aromatic from the coal and aliphatics from the petroleum) present in the system. Therefore, need arises for better understanding of the chemical and physical interactions during coprocessing. The aim of the present study is to examine the influence of reaction conditions, coal and petroleum resid properties as well as the compatibility of the coal/petroleum resid pairs in terms of structural components on total coal conversion. Special focus will be given to the reactivity of coals and interaction of the coal and resid which lead to anisotropic coke.

Tomic, J.; Schobert, H.H.

1992-01-01T23:59:59.000Z

375

Co-combustion Character of Oil Shale and Its Semi-coke on CFB Bench  

Science Conference Proceedings (OSTI)

Semi-coke is by-product from oil shale retorts and it is important to burn it in CFB furnace. But limited to the inflammable combustion traits, co-combustion of semi-coke with raw oil shale would be meaningful. Experimental research on co-combustion ... Keywords: combustion, distribution, semi-coke, temperature

Sun Baizhong; Huang Zhirong

2011-08-01T23:59:59.000Z

376

PRODUCTION AND SCREENING OF CARBON PRODUCTS PRECURSORS FROM COAL  

DOE Green Energy (OSTI)

The authors have examined effects of blending a raw coal extract (EXT) with an extracted coal-tar pitch (ECTP). Previous reports were concerned with the addition of 15 wt% EXT, or less, on the physical characteristics of the blend and on the development of optical texture following carbonization. Two additional blends of ECTP and EXT were prepared at the 30 and 50 wt% EXT content using a procedure already described. The characteristics of the blends are presented. The density for these blended materials is not much different than the density for the blends reported earlier. The softening point temperature for the 30 wt% EXT increased to over 200 C while the softening point temperature for the 50 wt% EXT blend was too high to be determined by the Mettler method. Coke yields approximately follow the law of mixtures. The optical texture of the green cokes for the 30 and 50 wt% EXT blends is shown. Though the optical texture of the green cokes was not significantly affected where the level of EXT is 15 wt% or less, larger proportions of EXT exert a marked reduction in anisotropy. The co-processing of coal with petroleum residues or other heavy hydrocarbons at elevated temperature and pressure has received considerable attention in the research community as a means to upgrade simultaneously coal and byproducts. Heavy hydrocarbons can function as sources of hydrogen, as well as performing as a medium for dissolution and dispersion of coal fragments. However, the focus of much of the prior research has been on developing fuels, distillable liquids, or synthetic crudes. Comparatively little effort has been deliberately directed toward the production of heavier, non-distillable materials which could perform as binder and extender pitches, impregnants, or feedstocks for cokes and other carbons.

Caulton L. Irwin

2001-05-31T23:59:59.000Z

377

Preconversion processing of bituminous coals: New directions to improved direct catalytic coal liquefaction  

SciTech Connect

A study of high-temperature soaking has been continued. Two high-volatile bituminous coals and three coal liquids were used. Large pyridine extractabilities of more than 70 wt% were obtained for aR cases. A better understanding Of the mechanism is important for the development of coal preconversion using the high-temperature soaking. To investigate the mechanism of the change in coal solubilization by high-temperature soaking, a simple soaking experiment was conducted. The extract from the Illinois No. 6 coal was treated in toluene at three different temperatures, and the treated samples were analyzed by coal swelling using the recently developed method. Furthermore, effects of soaking time, soaking temperature, soluble portions, and coal rank were examined by using actual coal liquids. Although a cross-linked, three-dimensional macromoleculer model has been widely accepted for the structure of coat it has previously been reported that significant portions (far more generally believed) of coal molecules are physically associated. It is known, as reviewed in that paper, that most portions of bituminous coal can be disintegrated in coal derived liquids and polycyclic aromatic hydrocarbons at 300--400{degrees}C (high-temperature soaking). It was proposed that electron donors and acceptors of low molecular mass contained in these materials substitute coal-coal complexes with charge-transfer interactions. This is physical dissociation of associated coal molecules. However, chemical reactions may occur at these temperatures.

1992-08-01T23:59:59.000Z

378

Theoretical and experimental foundations for preparing coke for blast-furnace smelting  

SciTech Connect

This article examines the preparation of coke for blast-furnace smelting by a method that most fully meets the requirements of blast-furnace technology: screening of the -36 mm fraction, the separation of nut coke of the 15-36 mm fraction, and its charging into the furnace in a mixture with the iron-ore-bearing charge components. An analysis is made of trial use of coke of the Premium class on blast furnace No. 5 at the Enakievo Metallurgical Plant. Use of this coke makes it possible to reduce the consumption of skip coke by 3.2-4.1%.

A.L. Podkorytov; A.M. Kuznetsov; E.N. Dymchenko; V.P. Padalka; S.L. Yaroshevskii; A.V. Kuzin [Enakievo Metallurgical Plant, Enakievo (Ukraine)

2009-05-15T23:59:59.000Z

379

Coke battery with 51-m{sup 3} furnace chambers and lateral supply of mixed gas  

SciTech Connect

The basic approaches employed in the construction of coke battery 11A at OAO Magnitogorskii Metallurgicheskii Kombinat are outlined. This battery includes 51.0-m{sup 3} furnaces and a dust-free coke-supply system designed by Giprokoks with lateral gas supply; it is heated exclusively by low-calorific mixed gas consisting of blast-furnace gas with added coke-oven gas. The 82 furnaces in the coke battery are divided into two blocks of 41. The gross coke output of the battery (6% moisture content) is 1140000 t/yr.

V.I. Rudyka; N.Y. Chebotarev; O.N. Surenskii; V.V. Derevich [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

380

Fuel gas main replacement at Acme Steel's coke plant  

SciTech Connect

ACME Steel's Chicago coke plant consists of two 4-meter, 50-oven Wilputte underjet coke-oven batteries. These batteries were constructed in 1956--1957. The use of blast furnace gas was discontinued in the late 1960's. In 1977--1978, the oven walls in both batteries were reconstructed. Reconstruction of the underfire system was limited to rebuilding the coke-oven gas reversing cocks and meter in orifices. By the early 1980's, the 24-in. diameter underfire fuel gas mains of both batteries developed leaks at the Dresser expansion joints. These leaks were a result of pipe loss due to corrosion. Leaks also developed along the bottoms and sides of both mains. A method is described that permitted pushing temperatures to be maintained during replacement of underfire fuel gas mains. Each of Acme's two, 50-oven, 4-metric Wilputte coke-oven, gas-fired batteries were heated by converting 10-in. diameter decarbonizing air mains into temporary fuel gas mains. Replacement was made one battery at a time, with the temporary 10-in. mains in service for five to eight weeks.

Trevino, O. (Acme Steel Co., Chicago, IL (United States). Chicago Coke Plant)

1994-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

The development of coke smelting and the industrial revolution  

E-Print Network (OSTI)

Abraham Darby and the origins of the industrial revolution in Britain. Alan Macfarlane talks to John about the reasons for the area near Birmingham becoming the epi-centre of the industrial development, and the development of coke furnaces and iron...

Macfarlane, Alan

2004-08-05T23:59:59.000Z

382

U.S. Refinery Yield of Petroleum Coke (Percent)  

U.S. Energy Information Administration (EIA)

U.S. Refinery Yield of Petroleum Coke (Percent) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1990's: 4.3: 4.3: 4.3: ...

383

U.S. Refinery Yield of Petroleum Coke (Percent)  

U.S. Energy Information Administration (EIA)

U.S. Refinery Yield of Petroleum Coke (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1993: 4.4: 4.6: 4.5: 4.3: 4.1: 4.2: 4.4: 4.3: ...

384

Depth estimation for ranking query optimization  

Science Conference Proceedings (OSTI)

A relational ranking query uses a scoring function to limit the results of a conventional query to a small number of the most relevant answers. The increasing popularity of this query paradigm has led to the introduction of specialized rank join operators ... Keywords: DEEP, Data statistics, Depth estimation, Query optimization, Relational ranking query, Top-k

Karl Schnaitter; Joshua Spiegel; Neoklis Polyzotis

2009-04-01T23:59:59.000Z

385

Analysis of photographic records of coal pyrolysis. Final report  

SciTech Connect

Bituminous coals upon heating undergo melting and pyrolytic decomposition with significant parts of the coal forming an unstable liquid that can escape from the coal by evaporation. The transient liquid within the pyrolyzing coal causes softening or plastic behavior that can influence the chemistry and physics of the process. Bubbles of volatiles can swell the softened coal mass in turn affecting the combustion behavior of the coal particles. The swelling behavior of individual coal particles has to be taken into account both as the layout as well as for the operation of pyrolysis, coking and performance of coal-fired boilers. Increased heating rates generally increase the amount of swelling although it is also known that in some cases, even highly swelling coals can be transformed into char with no swelling if they are heated slowly enough. The swelling characteristics of individual coal particles have been investigated by a number of workers employing various heating systems ranging from drop tube and shock tube furnaces, flow rate reactors and electrical heating coils. Different methods have also been employed to determine the swelling factors. The following sections summarize some of the published literature on the subject and outline the direction in which the method of analysis will be further extended in the study of the swelling characteristics of hvA bituminous coal particles that have been pyrolyzed with a laser beam.

Dodoo, J.N.D.

1991-10-01T23:59:59.000Z

386

Application of a catalyst deactivation model for hydrotreating solvent refined coal feedstocks  

SciTech Connect

A simple kinetic model, including a first-order catalyst deactivation rate, is applied to upgrading of coal-derived feedstocks prepared from two solvent refined coal fractions. A catalyst deactivation mechanism is proposed which involves the adsorption and surface reaction of coke precursors on catalytic active sites. The effect of feedstock composition, temperature, and pressure on kinetic parameters, and in particular, the catalyst deactivation rate, is determined.

Nalltham, R.V.; Curtis, C.W.; Guin, J.A.; Tarrer, A.R.

1983-10-01T23:59:59.000Z

387

Application of a catalyst deactivation model for hydrotreating solvent refined coal feedstocks  

SciTech Connect

A simple kinetic model, including a first-order catalyst deactivation rate, is applied to upgrading of coal-derived feedstocks prepared from two solvent refined coal fractions. A catalyst deactivation mechanism is proposed which involves the adsorption and surface reaction of coke precursors on catalytic active sites. The effect of feedstock composition, temperature and pressure on kinetic parameters, and in particular the catalyst deactivation rate, is determined.

Nalitham, R.V.

1983-10-01T23:59:59.000Z

388

Refinery Integration of By-Products from Coal-Derived Jet Fuels  

Science Conference Proceedings (OSTI)

This report summarizes the accomplishments toward project goals during the first six months of the third year of the project to assess the properties and performance of coal based products. These products are in the gasoline, diesel and fuel oil range and result from coal based jet fuel production from an Air Force funded program. Specific areas of progress include generation of coal based material that has been fractionated into the desired refinery cuts, acquisition and installation of a research gasoline engine, and modification of diesel engines for use in evaluating diesel produced in the project. Characterization of the gasoline fuel indicates a dominance of single ring alkylcycloalkanes that have a low octane rating; however, blends containing these compounds do not have a negative effect upon gasoline when blended in refinery gasoline streams. Characterization of the diesel fuel indicates a dominance of 3-ring aromatics that have a low cetane value; however, these compounds do not have a negative effect upon diesel when blended in refinery diesel streams. The desulfurization of sulfur containing components of coal and petroleum is being studied so that effective conversion of blended coal and petroleum streams can be efficiently converted to useful refinery products. Equipment is now in place to begin fuel oil evaluations to assess the quality of coal based fuel oil. Combustion and characterization of fuel oil indicates that the fuel is somewhere in between a No. 4 and a No. 6 fuel oil. Emission testing indicates the fuel burns similarly to these two fuels, but trace metals for the coal-based material are different than petroleum-based fuel oils. Co-coking studies using cleaned coal are highly reproducible in the pilot-scale delayed coker. Evaluation of the coke by Alcoa, Inc. indicated that while the coke produced is of very good quality, the metals content of the carbon is still high in iron and silica. Coke is being evaluated for other possible uses. Methods to reduce metal content are being evaluated.

Caroline E. Burgess Clifford; Andre Boehman; Chunshan Song; Bruce Miller; Gareth Mitchell

2006-05-17T23:59:59.000Z

389

Capturing carbon and saving coal  

SciTech Connect

Electric utilities face a tangle of choices when figuring how to pull CO{sub 2} from coal-fired plants. The article explains the three basic approaches to capturing CO{sub 2} - post-combustion, oxyfuel combustion and pre-combustion. Researchers at US DOE labs and utilities are investigating new solvents that capture CO{sub 2} more efficiently than amines and take less energy. Ammonium carbonate has been identified by EPRI as one suitable solvent. Field research projects on this are underway in the USA. Oxyfuel combustion trials are also being planned. Pre-combustion, or gasification is a completely different way of pulling energy from coal and, for electricity generation, this means IGCC systems. AEP, Southern Cinergy and Xcel are considering IGCC plants but none will capture CO{sub 2}. Rio Tinto and BP are planning a 500 MW facility to gasify coke waste from petroleum refining and collect and sequester CO{sub 2}. However, TECO recently dropped a project to build a 789 MW IGCC coal fired plant even though it was to receive a tax credit to encourage advanced coal technologies. The plant would not have captured CO{sub 2}. The company said that 'with uncertainty of carbon capture and sequestration regulations being discussed at the federal and state levels, the timing was not right'. 4 figs.

Johnson, J.

2007-10-15T23:59:59.000Z

390

Domestic Coal Distribution 2009 Q2 by Origin State: Alabama  

U.S. Energy Information Administration (EIA) Indexed Site

Q2 by Origin State: Alabama Q2 by Origin State: Alabama (1000 Short Tons) 1 / 58 Domestic Coal Distribution 2009 Q2 by Origin State: Alabama (1000 Short Tons) Destination State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 875 12 33 - 920 Alabama River 855 - - - 855 Alabama Truck 155 84 230 - 469 Alabama Total 1,885 96 263 - 2,244 Florida Railroad - - 8 - 8 Georgia Railroad 118 - - - 118 Georgia Truck s - 15 - 15 Georgia Total 118 - 15 - 133 Indiana Railroad - 83 - - 83 Indiana Truck 17 34 - - 50 Indiana Total 17 116 - - 133 Kentucky Railroad 83 - - - 83 Pennsylvania Railroad 95 - - - 95 Origin State Total 2,197 212 285 - 2,695 Railroad 1,171 95 40 - 1,305 River 855 - - - 855 Truck 171 118 245 - 534 2 / 58 Domestic Coal Distribution 2009 Q2 by Origin State: Alaska

391

Domestic Coal Distribution 2009 Q1 by Destination State: Alabama  

U.S. Energy Information Administration (EIA) Indexed Site

4 4 Domestic Coal Distribution 2009 Q1 by Destination State: Alabama (1000 Short Tons) 1 / 64 Domestic Coal Distribution 2009 Q1 by Destination State: Alabama (1000 Short Tons) Origin State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 950 4 84 - 1,038 Alabama River 1,110 - - - 1,110 Alabama Truck 37 170 249 - 456 Alabama Total 2,096 174 333 - 2,603 Arkansas Railroad - 6 - - 6 Colorado Railroad 279 - - - 279 Illinois Railroad 11 - - - 11 Illinois River 109 - - - 109 Illinois Total 119 - - - 119 Indiana River 197 - - - 197 Kentucky Railroad 442 - 28 - 471 Kentucky Truck - - 2 - 2 Kentucky Total 442 - 31 - 473 Kentucky (East) Railroad 357 - 28 - 385 Kentucky (East) Truck - - 2 - 2 Kentucky (East)

392

Domestic Coal Distribution 2009 Q2 by Destination State: Alabama  

U.S. Energy Information Administration (EIA) Indexed Site

61 61 Domestic Coal Distribution 2009 Q2 by Destination State: Alabama (1000 Short Tons) 1 / 61 Domestic Coal Distribution 2009 Q2 by Destination State: Alabama (1000 Short Tons) Origin State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 875 12 33 - 920 Alabama River 855 - - - 855 Alabama Truck 155 84 230 - 469 Alabama Total 1,885 96 263 - 2,244 Colorado Railroad 123 - - - 123 Illinois River 145 - - - 145 Indiana River 246 - - - 246 Indiana Truck 37 - - - 37 Indiana Total 283 - - - 283 Kentucky Railroad 426 - 30 - 457 Kentucky (East) Railroad 172 - 30 - 202 Kentucky (West) Railroad 255 - - - 255 Oklahoma Railroad - 6 - - 6 Utah Railroad 30 - - - 30 Virginia Railroad - 14 - - 14 West Virginia Railroad - 75 - -

393

Probability Ranking in Vector Spaces  

E-Print Network (OSTI)

The Probability Ranking Principle states that the document set with the highest values of probability of relevance optimizes information retrieval effectiveness given the probabilities are estimated as accurately as possible. The key point of the principle is the separation of the document set into two subsets with a given level of fallout and with the highest recall. The paper introduces the separation between two vector subspaces and shows that the separation yields a more effective performance than the optimal separation into subsets with the same available evidence, the performance being measured with recall and fallout. The result is proved mathematically and exemplified experimentally.

Melucci, Massimo

2011-01-01T23:59:59.000Z

394

Lame (IsotropicRank4TensorLame)  

Science Conference Proceedings (OSTI)

... OOF2: The Manual. Lame (IsotropicRank4TensorLame). ... Lame ( IsotropicRank4TensorLame) — Isotropic rank 4 tensor in terms of Lame ...

2013-07-05T23:59:59.000Z

395

USE OF COAL DRYING TO REDUCE WATER CONSUMED IN PULVERIZED COAL POWER PLANTS  

SciTech Connect

This is the ninth Quarterly Report for this project. The background and technical justification for the project are described, including potential benefits of reducing fuel moisture using power plant waste heat, prior to firing the coal in a pulverized coal boiler. During this last Quarter, comparative analyses were performed for lignite and PRB coals to determine how unit performance varies with coal product moisture. Results are given showing how the coal product moisture level and coal rank affect parameters such as boiler efficiency, station service power needed for fans and pulverizers and net unit heat rate. Results are also given for the effects of coal drying on cooling tower makeup water and comparisons are made between makeup water savings for various times of the year.

Edward Levy; Nenad Sarunac; Harun Bilirgen; Wei Zhang

2005-04-01T23:59:59.000Z

396

Advanced Coal Conversion Process Demonstration (Project)  

DOE Green Energy (OSTI)

This report contains a description of technical progress made on the Advanced Coal Conversion Process Demonstration Project (ACCP). The project is a US Department of Energy Innovative Clean Coal Technology Project. The cooperative agreement defining the project is between DOE and the Rosebud SynCoal Partnership RSCP. The RSCP is a partnership between Western Energy Company (WECo), a subsidiary of Entech, Montana Power's non-utility group, and NRG, a subsidiary of Northern States Power. The ACCP is a method of upgrading low ranked coals by reducing the moisture and sulfur content and increasing the heating value. The facility is being constructed at WECo's Rosebud No. 6 coal mine, west of Colstrip, Montana. This report contains both a history of the process development and a report of technical progress made since the beginning of the Clean Coal 1 cooperative agreement.

Not Available

1991-07-01T23:59:59.000Z

397

Process for producing fluid fuel from coal  

DOE Patents (OSTI)

Process for producing fluid fuel from coal. Moisture-free coal in particulate form is slurried with a hydrogen-donor solvent and the heated slurry is charged into a drum wherein the pressure is so regulated as to maintain a portion of the solvent in liquid form. During extraction of the hydrocarbons from the coal, additional solvent is added to agitate the drum mass and keep it up to temperature. Subsequently, the pressure is released to vaporize the solvent and at least a portion of the hydrocarbons extracted. The temperature of the mass in the drum is then raised under conditions required to crack the hydrocarbons in the drum and to produce, after subsequent stripping, a solid coke residue. The hydrocarbon products are removed and fractionated into several cuts, one of which is hydrotreated to form the required hydrogen-donor solvent while other fractions can be hydrotreated or hydrocracked to produce a synthetic crude product. The heaviest fraction can be used to produce ash-free coke especially adapted for hydrogen manufacture. The process can be made self-sufficient in hydrogen and furnishes as a by-product a solid carbonaceous material with a useful heating value.

Hyde, Richard W. (Winchester, MA); Reber, Stephen A. (Waltham, MA); Schutte, August H. (Lexington, MA); Nadkarni, Ravindra M. (Arlington, MA)

1977-01-01T23:59:59.000Z

398

The predictions of coal/char combustion rate using an artificial neural network approach  

E-Print Network (OSTI)

The predictions of coal/char combustion rate using an artificial neural network approach Q. Zhua of coal/char combustion was investigated. A database containing the combustion rate reactivity of 55 chars derived from 26 coals covering a wide range of rank and geographic origin was established to train

Thomas, Mark

399

PRODUCTION OF CARBON PRODUCTS USING A COAL EXTRACTION PROCESS  

Science Conference Proceedings (OSTI)

This Department of Energy National Energy Technology Laboratory sponsored project developed carbon products, using mildly hydrogenated solvents to extract the organic portion of coal to create synthetic pitches, cokes, carbon foam and carbon fibers. The focus of this effort was on development of lower cost solvents, milder hydrogenation conditions and improved yield in order to enable practical production of these products. This technology is needed because of the long-term decline in production of domestic feedstocks such as petroleum pitch and coal tar pitch. Currently, carbon products represents a market of roughly 5 million tons domestically, and 19 million tons worldwide. Carbon products are mainly derived from feedstocks such as petroleum pitch and coal tar pitch. The domestic supply of petroleum pitch is declining because of the rising price of liquid fuels, which has caused US refineries to maximize liquid fuel production. As a consequence, the long term trend has a decline in production of petroleum pitch over the past 20 years. The production of coal tar pitch, as in the case of petroleum pitch, has likewise declined significantly over the past two decades. Coal tar pitch is a byproduct of metallurgical grade coke (metcoke) production. In this industry, modern metcoke facilities are recycling coal tar as fuel in order to enhance energy efficiency and minimize environmental emissions. Metcoke production itself is dependent upon the production requirements for domestic steel. Hence, several metcoke ovens have been decommissioned over the past two decades and have not been replaced. As a consequence sources of coal tar are being taken off line and are not being replaced. The long-term trend is a reduction in coal tar pitch production. Thus import of feedstocks, mainly from Eastern Europe and China, is on the rise despite the relatively large transportation cost. To reverse this trend, a new process for producing carbon products is needed. The process must be economically competitive with current processes, and yet be environmentally friendly as well. The solvent extraction process developed uses mild hydrogenation of low cost oils to create powerful solvents that can dissolve the organic portion of coal. The insoluble portion, consisting mainly of mineral matter and fixed carbon, is removed via centrifugation or filtration, leaving a liquid solution of coal chemicals and solvent. This solution can be further refined via distillation to meet specifications for products such as synthetic pitches, cokes, carbon foam and fibers. The most economical process recycles 85% of the solvent, which itself is obtained as a low-cost byproduct from industrial processes such as coal tar or petroleum refining. Alternatively, processes have been developed that can recycle 100% of the solvent, avoiding any need for products derived from petroleum or coal tar.

Dady Dadyburjor; Philip R. Biedler; Chong Chen; L. Mitchell Clendenin; Manoj Katakdaunde; Elliot B. Kennel; Nathan D. King; Liviu Magean; Peter G. Stansberry; Alfred H. Stiller; John W. Zondlo

2004-08-31T23:59:59.000Z

400

Synergistic Effect of coal blends on thermoplasticity evaluated using a temperature-variable dynamic viscoelastic measurement  

SciTech Connect

To maximize the conversion of low-quality coal into good coke, we investigated the thermoplasticity of various binary blends of caking coals with slightly or noncaking coals using a dynamic viscoelastic technique with a temperature-variable rheometer. Coal blend samples were prepared by mixing two coals (1:1 by weight), which were heated from room temperature to 600 C at a rate of 3-80{sup o}C/min. At the slow rate of 3{sup o}C/min, the blends had a tan {delta} that was generally lower than the calculated value, showing that a negative interaction caused a loss of thermoplasticity. In contrast, at the rapid heating rate of 80{sup o}C/min, the tan {delta} of some blends was higher than the calculated value, indicating a positive interaction that enhanced the thermoplasticity. With rapid heating, the thermoplasticity of each coal itself increased, and their thermoplastic temperature ranges widened with rapid heating. Therefore, rapid heating was effective at converting these coal blends into good cokes. Moreover, even with slow heating, when a combination of coals (Gregory:Enshu, 1:1) showing some thermoplasticity in nearly the same temperature range was blended, a desirable synergistic effect of the blend was obtained. This suggests that blending coal with an overlapping thermoplastic temperature range is important for the synergistic effect, regardless of the heating rate. 15 refs., 9 figs., 2 tabs.

Toshimasa Takanohashi; Takahiro Shishido; Ikuo Saito; Kensuke Masaki; Atsushi Dobashi; Kiyoshi Fukada [National Institute of Advanced Industrial Science and Technology, Tsukuba (Japan)

2006-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Coal combustion under conditions of blast furnace injection. Final technical report, September 1, 1992--August 31, 1993  

Science Conference Proceedings (OSTI)

A potentially new use for Illinois coal is as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. During the first phase of this project a number of the objectives were realized, specifically: (1) a blast furnace sampling system was developed and used successfully to collect samples inside an active furnace; (2) two sets of blast furnace samples were collected and petrographic analysis showed that char derived from injected coal is entering the reduction zone of the furnace; (3) a coal/char sampling probe was designed and fabricated; (4) the completion of a program of reactivity experiments on the injected coal char, blast furnace coke and Herrin No. 6 char. The results of the reactivity experiments indicate that Herrin No. 6 coal is similar or even superior to coals now being used in blast furnace injection and that additional testing is warranted.

Crelling, J.C. [Southern Illinois Univ., Carbondale, IL (United States). Dept. of Geology; Case, E.R. [Armco, Inc., Middletown, OH (United States). Research and Technology Div.

1993-12-31T23:59:59.000Z

402

NETL: Gasification Systems - Advanced CO2 Capture Technology for Low-Rank  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced CO2 Capture Technology for Low-Rank Coal IGCC Systems Advanced CO2 Capture Technology for Low-Rank Coal IGCC Systems Project Number: DE-FE0007966 TDA Research, Inc. (TDA) is demonstrating the technical and economic viability of a new Integrated Gasification Combined Cycle (IGCC) power plant designed to efficiently process low-rank coals. The plant uses an integrated carbon dioxide (CO2) scrubber/water gas shift (WGS) catalyst to capture more than 90 percent of the CO2 emissions, while increasing the cost of electricity by less than 10 percent compared to a plant with no carbon capture. TDA is optimizing the sorbent/catalyst and process design, and assessing the efficacy of the integrated WGS catalyst/CO2 capture system, first in bench-scale experiments and then in a slipstream field demonstration using actual coal-derived synthesis gas. The results will feed into a techno-economic analysis to estimate the impact of the WGS catalyst/CO2 capture system on the thermal efficiency of the plant and the cost of electricity.

403

U.S. Coal Supply and Demand: 2010 Year in Review - Energy Information  

Gasoline and Diesel Fuel Update (EIA)

U.S. Coal Supply and Demand: 2010 Year in Review U.S. Coal Supply and Demand: 2010 Year in Review Release Date: June 1, 2011 | Next Release Date: Periodically | full report Introduction Coal production in the United States in 2010 increased to a level of 1,085.3 million short tons according to preliminary data from the U.S. Energy Information Administration (EIA), an increase of 1.0 percent, or 10.4 million short tons above the 2009 level of 1,074.9 million short tons (Table 1). In 2010 U.S. coal consumption increased in all sectors except commercial and institutional while total coal stocks fell slightly for the year. Coal consumption in the electric power sector in 2010 was higher by 4.5 percent, while coking coal consumption increased by 37.9 percent and the other industrial sector increased by 7.1 percent. The commercial and

404

Refinery Integration of By-Products from Coal-Derived Jet Fuels  

Science Conference Proceedings (OSTI)

This report summarizes the accomplishments toward project goals during the first twelve months of the project to assess the properties and performance of coal based products. These products are in the gasoline, diesel and fuel oil range and result from coal based jet fuel production from an Air Force funded program. Specific areas of progress include generation of coal based material that has been fractionated into the desired refinery cuts, acquisition and installation of a research gasoline engine, and modification of diesel engines for use in evaluating diesel produced in the project. The desulfurization of sulfur containing components of coal and petroleum is being studied so that effective conversion of blended coal and petroleum streams can be efficiently converted to useful refinery products. Equipment is now in place to begin fuel oil evaluations to assess the quality of coal based fuel oil. Coal samples have procured and are being assessed for cleaning prior to use in coking studies.

Leslie R. Rudnick; Andre Boehman; Chunshan Song; Bruce Miller; John Andresen

2004-09-17T23:59:59.000Z

405

REFINERY INTEGRATION OF BY-PRODUCTS FROM COAL-DERIVED JET FUELS  

Science Conference Proceedings (OSTI)

This report summarizes the accomplishments toward project goals during the first six months of the project to assess the properties and performance of coal based products. These products are in the gasoline, diesel and fuel oil range and result from coal based jet fuel production from an Air Force funded program. Specific areas of progress include generation of coal based material that has been fractionated into the desired refinery cuts, acquisition and installation of a research gasoline engine, and modification of diesel engines for use in evaluating diesel produced in the project. The desulfurization of sulfur containing components of coal and petroleum is being studied so that effective conversion of blended coal and petroleum streams can be efficiently converted to useful refinery products. Equipment is now in place to begin fuel oil evaluations to assess the quality of coal based fuel oil. Coal samples have procured and are being assessed for cleaning prior to use in coking studies.

Leslie R. Rudnick; Andre Boehman; Chunshan Song; Bruce Miller; John Andresen

2004-04-23T23:59:59.000Z

406

REFINERY INTEGRATION OF BY-PRODUCTS FROM COAL-DERIVED JET FUELS  

SciTech Connect

This report summarizes the accomplishments toward project goals during the first six months of the second year of the project to assess the properties and performance of coal based products. These products are in the gasoline, diesel and fuel oil range and result from coal based jet fuel production from an Air Force funded program. Specific areas of progress include generation of coal based material that has been fractionated into the desired refinery cuts, acquisition and installation of a research gasoline engine, and modification of diesel engines for use in evaluating diesel produced in the project. The desulfurization of sulfur containing components of coal and petroleum is being studied so that effective conversion of blended coal and petroleum streams can be efficiently converted to useful refinery products. Equipment is now in place to begin fuel oil evaluations to assess the quality of coal based fuel oil. Coal samples have procured and are being assessed for cleaning prior to use in coking studies.

Leslie R. Rudnick; Andre Boehman; Chunshan Song; Bruce Miller; Gareth Mitchell

2005-05-18T23:59:59.000Z

407

Refinery Integration of By-Products from Coal-Derived Jet Fuels  

Science Conference Proceedings (OSTI)

This report summarizes the accomplishments toward project goals during the first six months of the second year of the project to assess the properties and performance of coal based products. These products are in the gasoline, diesel and fuel oil range and result from coal based jet fuel production from an Air Force funded program. Specific areas of progress include generation of coal based material that has been fractionated into the desired refinery cuts, acquisition and installation of a research gasoline engine, and modification of diesel engines for use in evaluating diesel produced in the project. The desulfurization of sulfur containing components of coal and petroleum is being studied so that effective conversion of blended coal and petroleum streams can be efficiently converted to useful refinery products. Evaluations to assess the quality of coal based fuel oil are reported. Coal samples have procured and are being assessed for cleaning prior to use in coking studies.

Leslie R. Rudnick; Andre Boehman; Chunshan Song; Bruce Miller; Gareth Mitchell

2005-11-17T23:59:59.000Z

408

Coal liquefaction with subsequent bottoms pyrolysis  

DOE Patents (OSTI)

In a coal liquefaction process wherein heavy bottoms produced in a liquefaction zone are upgraded by coking or a similar pyrolysis step, pyrolysis liquids boiling in excess of about 1000.degree. F. are further reacted with molecular hydrogen in a reaction zone external of the liquefaction zone, the resulting effluent is fractionated to produce one or more distillate fractions and a bottoms fraction, a portion of this bottoms fraction is recycled to the reaction zone, and the remaining portion of the bottoms fraction is recycled to the pyrolysis step.

Walchuk, George P. (Queens, NY)

1978-01-01T23:59:59.000Z

409

Coke County, Texas: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Coke County, Texas: Energy Resources Coke County, Texas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 31.8277663°, -100.5296115° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":31.8277663,"lon":-100.5296115,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

410

Coke oven gas desulphurization by the Carl Still process  

SciTech Connect

The Steubenville East Coke Plant need a desulfurization process that would desulfurize an eventual 95 million standard cubic feet per day of coke oven gas from an inlet of 450 gr/DSCF to an outlet of 45 gr/DSCF of hydrogen sulfide. The Dravo/Still plant process was selected, due to the use of ammonia which was available in the gas, as the absorbing agent. It was also a proven process. Dravo/Still also was capable of building a sulfuric acid plant. The desulfurization efficiency of the plant has consistently provided an average final gas sulfur loading below the guaranteed 45 gr/DSCF. This removal efficiency has enabled production of an average of 4615 tons per day of 66/sup 0/Be acid. Also SO/sub 2/ to SO/sub 3/ conversion has averaged 98%. 3 figures. (DP)

Knight, R.E.

1981-01-01T23:59:59.000Z

411

Executive summary: Technical and economic feasibility study. Trigeneration project, Shanghai Coking and Chemical Plant. Export trade information  

SciTech Connect

The study, conducted by Bechtel, Inc., was funded by the U.S. Trade and Development Agency. The purpose of the study is to assess the feasibility of establishing a new coal-based Trigeneration Complex as an addition to the existing Shanghai Coking and Chemical Plant. The complex would produce gas for the city of Shanghai, chemicals for domestic consumption and foreign export, and utilities for use within the complex and for export to other facilities. The report presents an in-depth study of the economic and technical aspects of the project, as well as an outline of project implementation phases. The study is divided into the following sections: (1) Introduction; (2) Summary; (3) Study Bases; (4) Process Selection and Rationale; (5) Chemical Selection and Marketing; (6) Definition of Facilities; (7) Site and Plot Plan.

NONE

1987-01-01T23:59:59.000Z

412

NETL: Clean Coal Demonstrations - Coal 101  

NLE Websites -- All DOE Office Websites (Extended Search)

Clean Coal 101 Lesson 1: Cleaning Up Coal Clean Coal COAL is our most abundant fossil fuel. The United States has more coal than the rest of the world has oil. There is still...

413

Development of Load Tap Changer Monitoring Technique: Mechanism of Coking  

Science Conference Proceedings (OSTI)

Load tap changers (LTCs) play a major role in the reliable delivery of electric power. They are the single biggest contributors to transformer outages. To improve reliability and extend their service interval, utilities are adopting proactive maintenance practices using monitoring devices and seeking new diagnostic techniques. As part of an ongoing EPRI project, EPRI and cosponsor Consolidated Edison Co. of New York, Inc. engaged in a study of contact coking, one of the biggest problems in LTCs. This EPR...

2001-11-27T23:59:59.000Z

414

New environmental concepts in the chemical and coke industries  

Science Conference Proceedings (OSTI)

We know that environmentally pure technologies do not exist. Coke production is no exception to the rule. The article considers the logic of environmental decision making. Attention focuses on a new bank of ecologically appropriate materials whose release to the biosphere must be considered solely in quantititative terms. Qualitativily all these materials are familiar; they are assimilated by populations of microorganisms and tar thus compatible with the biosphere.

A.Yu. Naletov; V.A. Naletov [Mendeleev Russian Chemical-Engineering University (Russian Federation)

2007-05-15T23:59:59.000Z

415

Petrographic, mineralogical, and chemical characterization of certain Alaskan coals and washability products. Final report, July 11, 1978-October 11, 1980  

DOE Green Energy (OSTI)

Petrological, mineralogical and chemical characterization provides basic information needed for proper utilization of coals. Since many of these coals are likely to be beneficiated to reduce ash, the influence of coal washing on the characteristics of the washed product is important. Twenty samples of Alaskan coal seams were used for this study. The coals studied ranged in rank from lignite to high volatile A bituminous with vitrinite/ulminite reflectance ranging from 0.25 to 1.04. Fifteen raw coals were characterized for proximate and ultimate analysis reflectance rank, petrology, composition of mineral matter, major oxides and trace elements in coal ash. Washability products of three coals from Nenana, Beluga and Matanuska coal fields were used for characterization of petrology, mineral matter and ash composition. Petrological analysis of raw coals and float-sink products showed that humodetrinite was highest in top seam in a stratigraphic sequence

Rao, P.D.; Wolff, E.N.

1981-05-01T23:59:59.000Z

416

U.S. Energy Information Administration | Annual Coal Report 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Sales Price of Coal by State and Coal Rank, 2012 Sales Price of Coal by State and Coal Rank, 2012 (dollars per short ton) U.S. Energy Information Administration | Annual Coal Report 2012 Table 31. Average Sales Price of Coal by State and Coal Rank, 2012 (dollars per short ton) U.S. Energy Information Administration | Annual Coal Report 2012 Coal-Producing State Bituminous Subbituminous Lignite Anthracite Total Alabama 106.57 - - - 106.57 Alaska - w - - w Arizona w - - - w Arkansas w - - - w Colorado w w - - 37.54 Illinois 53.08 - - - 53.08 Indiana 52.01 - - - 52.01 Kentucky Total 63.12 - - - 63.12 Kentucky (East) 75.62 - - - 75.62 Kentucky (West) 48.67 - - - 48.67 Louisiana - - w - w Maryland 55.67 - - - 55.67 Mississippi - - w - w Missouri w - - - w Montana w 17.60 w - 18.11 New Mexico w w - - 36.74 North Dakota - - 17.40 - 17.40 Ohio 47.80 - - - 47.80 Oklahoma 59.63 - - - 59.63 Pennsylvania Total 72.57

417

U.S. Energy Information Administration | Annual Coal Report 2012  

U.S. Energy Information Administration (EIA) Indexed Site

U.S. Coal Consumption by End Use Sector, Census Division, and State, 2012 and 2011 U.S. Coal Consumption by End Use Sector, Census Division, and State, 2012 and 2011 (thousand short tons) U.S. Energy Information Administration | Annual Coal Report 2012 Table 26. U.S. Coal Consumption by End Use Sector, Census Division, and State, 2012 and 2011 (thousand short tons) U.S. Energy Information Administration | Annual Coal Report 2012 2012 2011 Total Census Division and State Electric Power 1 Other Industrial Coke Commercial and Institutional Electric Power 1 Other Industrial Coke Commercial and Institutional 2012 2011 Percent Change New England 1,920 81 - - 3,025 w - - 2,001 w w Connecticut 415 - - - 325 - - - 415 325 27.5 Maine 32 w - - 38 w - - w w -16.4 Massachusetts 954 w - - 1,763 w - - w w -44.4 New Hampshire 520 - - - 898 - - - 520 898 -42.2 Middle Atlantic 44,838 2,440 w w 53,970 2,926 w w 52,750

418

U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013  

U.S. Energy Information Administration (EIA) Indexed Site

Open Market Sales and Average Price of Coke and Breeze Open Market Sales and Average Price of Coke and Breeze (thousand short tons and dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 25. Open Market Sales and Average Price of Coke and Breeze (thousand short tons and dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Commodity April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change Coke - - - - - - Sales 1,969 1,936 1,996 3,905 3,987 -2.1 Average Price 331.26 364.97 388.87 347.97 395.78 -12.1 Breeze - - - - - - Sales 89 110 158 199 309 -35.7 Average Price 196.05 145.86 103.62 168.27 101.14 66.4 Note: Total may not equal sum of components because of independent rounding. Source: U.S. Energy Information Administration (EIA), Form EIA-5, 'Quarterly Coal Consumption and Quality Report -

419

Coal pump  

DOE Patents (OSTI)

A device for pressurizing pulverized coal and circulating a carrier gas is disclosed. This device has utility in a coal gasification process and eliminates the need for a separate collection hopper and eliminates the separate compressor.

Bonin, John H. (Sunnyvale, CA); Meyer, John W. (Palo Alto, CA); Daniel, Jr., Arnold D. (Alameda County, CA)

1983-01-01T23:59:59.000Z

420

U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013  

U.S. Energy Information Administration (EIA) Indexed Site

3. Average Quality of Coal Received at Manufacturing and Coke Plants by Census Division and State 3. Average Quality of Coal Received at Manufacturing and Coke Plants by Census Division and State U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 43. Average Quality of Coal Received at Manufacturing and Coke Plants by Census Division and State U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Census Division and State 1 April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change New England Btu 13,323 13,196 13,391 13,253 13,339 -0.6 Sulfur 0.84 0.89 0.72 0.87 0.72 20.3 Ash 5.95 5.81 5.93 5.87 6.09 -3.6 Maine Btu w w w w w w Sulfur w w w w w w Ash w w w w w w Massachusetts Btu 13,503 13,570 13,592 13,535 13,516 0.1 Sulfur 0.78 0.78 0.75 0.78 0.73 7.7 Ash 5.89 5.55 5.66

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013  

U.S. Energy Information Administration (EIA) Indexed Site

Average Price of Coal Receipts at Coke Plants by Census Division Average Price of Coal Receipts at Coke Plants by Census Division (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 24. Average Price of Coal Receipts at Coke Plants by Census Division (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Census Division April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change Middle Atlantic w w w w w w East North Central 157.29 176.84 199.70 166.21 198.26 -16.2 South Atlantic w w w w w w East South Central w w w w w w U.S. Total 157.26 171.51 191.48 163.85 190.51 -14.0 w = Data withheld to avoid disclosure. Note: Average price is based on the cost, insurance, and freight (c.i.f. value). Total may not equal sum of components because of independent rounding.

422

SOLOX coke-oven gas desulfurization ppm levels -- No toxic waste  

SciTech Connect

For sulfur removal from coke-oven gas, the reduction/oxidation processes such as Stretford are the most effective, capable of removing the H[sub 2]S down to ppm levels. However, these processes have, in the past, suffered from ecological problems with secondary pollutant formation resulting from side reactions with HCN and O[sub 2]. The SOLOX gas desulfurization system is a development of the Stretford process in which the toxic effluent problems are eliminated by installing a salt decomposition process operating according to the liquid-phase hydrolysis principle. In this process, the gaseous hydrolysis products H[sub 2]S, NH[sub 3] and CO[sub 2] are returned to the untreated gas, and the regenerated solution is recycled to the absorption process. The blowdown from the absorption circuit is fed into a tube reactor where the hydrolysis process takes place. The toxic salts react with water, producing as reaction products the gases H[sub 2]S, NH[sub 3] and CO[sub 2], and the nontoxic salt Na[sub 2]SO[sub 4]. From the hydrolysis reactor the liquid stream flows into a fractionating crystallization plant. This plant produces a recycle stream of regenerated absorption solution and a second stream containing most of the Na[sub 2]SO[sub 4]. This second stream comprises the net plant waste and can be disposed of with the excess ammonia liquor or sprayed onto the coal.

Platts, M. (Thyssen Still Otto Technical Services, Pittsburgh, PA (United States)); Tippmer, K. (Thyssen Still Otto Anlagentechnik GmbH, Bochum (Germany))

1994-09-01T23:59:59.000Z

423

The use of solid-state NMR techniques for the analysis of water in coal and the effect of different coal drying techniques on the structure and reactivity of coal. Quarterly report, March 1, 1994--May 31, 1994  

SciTech Connect

One area for improvement in the economics of coal liquefaction is coal drying, particularly for the lower rank coals. However, there is considerable evidence to show that drying has a detrimental effect on the liquefaction behavior of coals. Regarding the liquefaction of coal, there does not appear to have been any systematic study of the methods of coal drying on coal structure and the role water plays in enhancing or lessening coal reactivity toward liquefaction. For the research program reported here, different methods of drying are being investigated to determine if drying can be accomplished without destroying coal reactivity toward liquefaction. In an effort to understand the mechanism of water for enhancing coal liquefaction yield, the reactions of D{sub 2}O with the molecular constituents of coal during coal liquefaction are being investigated. This study involves the use of solution-state deuterium NMR, as well as, conventional solution-state {sup 1}H and {sup 13}C NMR analyses of the coal, and the coal liquids and residue from a coal liquefaction process. These D{sub 2}O transfer reactions will be conducted on coals which have been dried by various methods and rehydrated using D{sub 2}O and by successive exchange of H{sub 2}O associated with the coals with D{sub 2}O. The drying methods include thermal, microwave, and chemical dehydration of the coal.

Netzel, D.A.

1994-08-01T23:59:59.000Z

424

The Vertical Ball Mill for the Grinding of Calcined Petroleum Coke to ...  

Science Conference Proceedings (OSTI)

A new vertical ball ring mill concept has been developed based on the results of research on the grinding of calcined petroleum coke. Industrial vertical mills are ...

425

Investigating factors that influence carbon dissolution from Coke into Molten iron.  

E-Print Network (OSTI)

??The need for more efficient blast furnaces is even greater now that there are stricter environmental regulations on greenhouse gas (GHG) emissions. Coke within the… (more)

Cham, S. Tsuey

2007-01-01T23:59:59.000Z

426

Development Of Reclamation Substrates For Alberta Oil Sands Using Mature Fine Tailings And Coke.  

E-Print Network (OSTI)

??Mature fine tailings and coke are waste products of the oil sands industry with potential for reclamation. A greenhouse study assessed whether substrates of various… (more)

Luna-Wolter, Gabriela L.

2012-01-01T23:59:59.000Z

427

Preparation of Activated Carbon from Oil Sands Coke by Chemical and Physical Activation Techniques.  

E-Print Network (OSTI)

??Oil sands coke is a by-product resulting from the upgrading of heavy crude bitumen to light synthetic oil. This research investigates the preparation of activated… (more)

Morshed, Golam

2012-01-01T23:59:59.000Z

428

Simulation of Combustion and Thermal-flow Inside a Petroleum Coke Rotary Calcining Kiln.  

E-Print Network (OSTI)

??Calcined coke is the best material for making carbon anodes for smelting of alumina to aluminum. Calcining is an energy intensive industry and a significant… (more)

Zhang, Zexuan

2007-01-01T23:59:59.000Z

429

Lignin as Both Fuel and Fusing Binder in Briquetted Anthracite Fines for Foundry Coke Substitute.  

E-Print Network (OSTI)

??Lignin that had been extracted from Kraft black liquor was investigated as a fusing binder in briquetted anthracite fines for a foundry coke substitute. Cupola… (more)

Lumadue, Matthew

2012-01-01T23:59:59.000Z

430

Coke yield and transport processes in agglomerates of bitumen and solids.  

E-Print Network (OSTI)

??Agglomerate formation is a common phenomenon that can cause operating problems in the fluid coking reactor. When agglomerates form they provide longer diffusion paths of… (more)

Ali, Mohamed Ali Hassan

2010-01-01T23:59:59.000Z

431

The Effect of Coke Particle Size on Thermal Profile of Sintering ...  

Science Conference Proceedings (OSTI)

Baking process and sinter production was performed for different ranges of coke particle size while other parameter like, iron ore, lime and sintering mixture ...

432

MOLECULAR COMPOSITION OF NEEDLE COKE FEEDSTOCKS AND MESOPHASE DEVELOPMENT DURING CARBONIZATION.  

E-Print Network (OSTI)

??This study investigates the molecular composition of fluid catalytic cracking (FCC) decant oil and its derivatives that are used as feedstocks for delayed coking to… (more)

Wang, Guohua

2005-01-01T23:59:59.000Z

433

U.S. Exports to Belarus of Petroleum Coke (Thousand Barrels)  

U.S. Energy Information Administration (EIA)

U.S. Exports to Belarus of Petroleum Coke (Thousand Barrels) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 2004: 17

434

Effect of Blending HDPE with Coke on the Reduction Behavior of a ...  

Science Conference Proceedings (OSTI)

This has led to the exploration of the possibility of using polymer/coke blends in the production of ferro-alloys, particularly High Carbon Ferromanganese (HC ...

435

EIA - Coal Distribution  

U.S. Energy Information Administration (EIA) Indexed Site

Annual Coal Distribution Report > Annual Coal Distribution Archives Annual Coal Distribution Archive Release Date: February 17, 2011 Next Release Date: December 2011 Domestic coal...

436

Depth estimation for ranking query optimization  

Science Conference Proceedings (OSTI)

A relational ranking query uses a scoring function to limit the results of a conventional query to a small number of the most relevant answers. The increasing popularity of this query paradigm has led to the introduction of specialized rank join operators ...

Karl Schnaitter; Joshua Spiegel; Neoklis Polyzotis

2007-09-01T23:59:59.000Z

437

Pairwise ranking aggregation in a crowdsourced setting  

Science Conference Proceedings (OSTI)

Inferring rankings over elements of a set of objects, such as documents or images, is a key learning problem for such important applications as Web search and recommender systems. Crowdsourcing services provide an inexpensive and efficient means to acquire ... Keywords: crowdsourcing, pairwise preference, ranking

Xi Chen; Paul N. Bennett; Kevyn Collins-Thompson; Eric Horvitz

2013-02-01T23:59:59.000Z

438

Query weighting for ranking model adaptation  

Science Conference Proceedings (OSTI)

We propose to directly measure the importance of queries in the source domain to the target domain where no rank labels of documents are available, which is referred to as query weighting. Query weighting is a key step in ranking model adaptation. As ...

Peng Cai; Wei Gao; Aoying Zhou; Kam-Fai Wong

2011-06-01T23:59:59.000Z

439

Further studies of the effects of oxidation on the surface properties of coal and coal pyrite  

SciTech Connect

The objective of this research was to investigate the oxidation behavior of coal and coal pyrite and to correlate the changes in the surface properties induced by oxidation, along with the intrinsic physical and chemical properties of these organic and inorganic materials, with the behavior in physical coal cleaning processes. This provide more fundamental knowledge for understanding the way in which different factors interact in a medium as heterogeneous as coal. Fourteen coal samples of different ranks ranging from high to medium sulfur content were studied by dry oxidation tests at different temperatures and humidities, and by wet oxidation tests using different oxidizing agents. The concentration of surface oxygen functional groups was determined by ion-exchange methods. The changes in the coal composition with oxidation were analyzed by spectroscopic techniques. The wettability of as-received and oxidized coal and coal pyrite samples was assessed by film flotation tests. The electrokinetic behavior of different coals and coal pyrite samples was studied by electrokinetic tests using electrophoresis. Possible oxidation mechanisms have been proposed to explain the changes on the coal surface induced by different oxidation treatments.

Herrera, M.N.

1994-12-31T23:59:59.000Z

440

CO{sub 2} Sequestration Potential of Charqueadas Coal Field in Brazil  

Science Conference Proceedings (OSTI)

The I2B coal seam in the Charqueadas coal field has been evaluated as a target for enhanced coal bed methane production and CO{sub 2} sequestration. The samples were low rank coals (high volatile bituminous and sub-bituminous) obtained from the I2B seam as ?3? cores. Such properties as sorption capacity, internal structure of the samples, porosity and permeability were of primary interest in this characterization study.

Romanov, V [NETL

2012-10-23T23:59:59.000Z

Note: This page contains sample records for the topic "rank coal coke" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Innovative coke oven gas cleaning system for retrofit applications. Quarterly environmental monitoring report No. 3, January 1, 1991--December 31, 1991  

Science Conference Proceedings (OSTI)

Bethlehem Steel Corporation (BSC), in conjunction with the Department of Energy (DOE) is conducting a Clean Coal Technology (CCT) project at its Sparrows Point, Maryland Coke Oven Plant. This project combines several existing technologies into an integrated system for removing impurities from Coke Oven Gas (COG) to make it an acceptable fuel. DOE is providing cost-sharing under a Cooperative Agreement with BSC. This Cooperative Agreement requires BSC to develop and conduct an Environmental Monitoring Plan (EMP) for the Clean Coal Technology project and to report the status of the EMP on a quarterly basis. This report is the third quarterly status report of the EMP. It covers the Environmental Monitoring Plan activities for the full year of 1991 from January 1, 1991 through December 31, 1991, including the forth quarter. See Sections 2, 3 and 4 for status reports of the Project Installation and Commissioning, the Environmental Monitoring activities and the Compliance Monitoring results for the period. Section 5 contains a list of Compliance Reports submitted to regulatory agencies during the period. The EMP describes in detail the environmental monitoring activities to be performed during the project execution. The purpose of the EMP is to: (1) document the extent of compliance of monitoring activities, i.e. those monitoring required to meet permit requirements, (2) confirm the specific impacts predicted in the National Environmental Policy Act documentation, and (3) establish an information base for the assessment of the environmental performance of the technology demonstrated by the project.

Not Available

1992-10-16T23:59:59.000Z

442

Presidential Rank Awards Announced | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Presidential Rank Awards Announced Presidential Rank Awards Announced Presidential Rank Awards Announced November 4, 2011 - 10:45am Addthis Senior level executives and the 2010 Presidential Rank Award winners. First Row: Melvin Williams; Neile Miller for James B. Lambert and Theodore D. Sherry; Daniel Poneman, Patricia R. Worthington, Sandra Waisley for David A. Brockman, Secretary Chu, Frank B. Russo, and Steven Aoki. Second Row: William Barker for Andrew Lawrence, Raymond V. Furstenau, Charles McConnell for Victor A. Der, Michael Weis, and Michael C. Kane | Photo courtesy of the Energy Department. Senior level executives and the 2010 Presidential Rank Award winners. First Row: Melvin Williams; Neile Miller for James B. Lambert and Theodore D. Sherry; Daniel Poneman, Patricia R. Worthington, Sandra Waisley for David

443

Zero forcing parameters and minimum rank problems  

E-Print Network (OSTI)

The zero forcing number Z(G), which is the minimum number of vertices in a zero forcing set of a graph G, is used to study the maximum nullity / minimum rank of the family of symmetric matrices described by G. It is shown that for a connected graph of order at least two, no vertex is in every zero forcing set. The positive semidefinite zero forcing number Z_+(G) is introduced, and shown to be equal to |G|-OS(G), where OS(G) is the recently defined ordered set number that is a lower bound for minimum positive semidefinite rank. The positive semidefinite zero forcing number is applied to the computation of positive semidefinite minimum rank of certain graphs. An example of a graph for which the real positive symmetric semidefinite minimum rank is greater than the complex Hermitian positive semidefinite minimum rank is presented.

Barioli, Francesco; Fallat, Shaun M; Hall, H Tracy; Hogben, Leslie; Shader, Bryan; Driessche, P van den; van der Holst, Hein

2010-01-01T23:59:59.000Z

444

Developing indicators for the assessment and proper management of the different levels of exposure to polycyclic aromatic hydrocarbons (PAH)s generally associated with coke-oven workers.  

E-Print Network (OSTI)

??Coke ovens may occur in the aluminium, steel, graphite, electrical, and construction industries. In the work area coke-oven workers may be exposed to various chemical… (more)

Wang, Tianyuan

2011-01-01T23:59:59.000Z

445

Life-Cycle Evaluation of Concrete Building Construction as a Strategy for Sustainable Cities  

E-Print Network (OSTI)

coking represents a modern coke plant using standardto produce a ton of coke). The inclusion of parameterconversion of coal feedstock to coke and coke oven gas, for

Stadel, Alexander

2013-01-01T23:59:59.000Z

446

Coal distribution, January-September 1986  

Science Conference Proceedings (OSTI)

US coal producers and distributors shipped 665.3 million short tons of coal to domestic and foreign destinations from January through September 1986, 2.8 million short tons more than the amount shipped during the same time period of 1985. Nearly all (99.9%) of the coal that was produced and purchased during the first 9 months of 1986 was shipped. In contrast, shipments exceeded production and purchases by 1.6 million short tons during the comparable period of 1985 as producers and distributors drew from their stockpiles to help meet the demand. During January through September 1986: (1) Coal production was 0.7% higher and coal shipments were 0.4% higher than during the same time period of 1985. (2) Producers and distributors held stockpiles of 33.7 million short tons on September 30, 1986, 1.8% more than their stocks at the end of 1985. (3) Shipments for export were 7.8% less than they were 1 year earlier. (4) Domestic shipments to electric utilities and other industrial plants were higher while those to coke plants were lower, compared to the same time period of 1985. This issue contained a review article on Pennsylvania anthracite. 6 figs., 33 tabs.

Not Available

1987-01-06T23:59:59.000Z

447

The effects of petroleum coke amendments on macrophytes and aquatic invertebrates in northern Alberta, Canada constructed wetlands.  

E-Print Network (OSTI)

??Oil-sands operators of Fort McMurray, Alberta produce six million t/y of petroleum coke. The use of coke to stabilize clay-dominated mine tailings in constructed wetlands… (more)

Baker, Leanne F.

2007-01-01T23:59:59.000Z

448

J.Org. Chem. 1984,49, 3033-3035 3033 Proposed SequentialConversion of Coal's  

E-Print Network (OSTI)

J.Org. Chem. 1984,49, 3033-3035 3033 SchemeI. @& Proposed SequentialConversion of Coal's Native moieties (func- tionalities determined to be important for lignins6and for low-rank coals'). In contrast "C, is one of condensation to make a dimeric furan! Sincein a coal systemthere will be some available

449

Investigation of the stress induced properties of coke during carbonization.  

E-Print Network (OSTI)

??The large polycyclic aromatic plates within coal tar pitches do not flow freely enough to organize into large anisotropic domains during pyrolytic carbonization. It was… (more)

Maybury, James Joshua.

2007-01-01T23:59:59.000Z

450

Takahax-Hirohax process for coke oven gas desulfurization  

SciTech Connect

This paper describes the Takahax-Hirohax process to desulfurize coke oven gas and to produce an ammonium sulfate end product. A review is also made of current operating experience and recent technical developments. The Takahax-Hirohax process is extremely useful when the COG contains a suitable ammonia to sulfur ratio and when ammonium sulfate is a desirable end product. No contaminated effluent streams are emitted from the process. The process is simple, reliable, flexible, and responds easily to COG variations. 4 figures, 3 tables. (DP)

Gastwirth, H.; Miner, R.; Stengle, W.

1981-01-01T23:59:59.000Z

451

Short Survey: Intelligent switching expert system for delayed coking unit based on iterative learning strategy  

Science Conference Proceedings (OSTI)

Delayed coking is the most effective process to decarbonize and demetallize heavy petroleum residues. However, it relies much on the field engineers' experiences and expertise in practice for operating the controllers effectively and compatibly in delayed ... Keywords: Delayed coking, Expert system, Intelligent control, Iterative learning

Xiaodong Yu; Yujie Wei; Dexian Huang; Yongheng Jiang; Bo Liu; Yihui Jin

2011-07-01T23:59:59.000Z

452

Organic Sulphur Transfers in Coke Oven Gas via Noncatalytic Partial Oxidation  

Science Conference Proceedings (OSTI)

The organic sulfur transformation was studied during coke oven gas to produce syngas via noncatalytic partial oxidation. The concentration of CS2 and thiophene was examined in syngas by sulfide detector. For comparison, the sulfur transfer was also studied ... Keywords: Organic sulfur transfer, Coke oven gas, CS2, thiophene

Guojie Zhang; Yongfa Zhang; Xianglan Li; Hongcheng Cao

2009-10-01T23:59:59.000Z

453

NETL: Clean Coal Demonstrations - Coal 101  

NLE Websites -- All DOE Office Websites (Extended Search)

Cleanest Coal Technology Clean Coal 101 Lesson 5: The Cleanest Coal Technology-A Real Gas Don't think of coal as a solid black rock. Think of it as a mass of atoms. Most of the...

454

Coal_Studyguide.indd  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Study Guide: WHAT IS COAL? Coal looks like a shiny black rock. Coal has lots of energy in it. When it is burned, coal makes heat and light energy. Th e cave men used coal for...

455

Domestic Coal Distribution 2009 Q1 by Origin State: Alabama  

U.S. Energy Information Administration (EIA) Indexed Site

Q1 by Origin State: Alabama Q1 by Origin State: Alabama (1000 Short Tons) 1 / 58 Domestic Coal Distribution 2009 Q1 by Origin State: Alabama (1000 Short Tons) Destination State Transportation Mode Electricity Generation Coke Plants Industrial Plants Excluding Coke Commercial & Institutional Total Alabama Railroad 950 4 84 - 1,038 Alabama River 1,110 - - - 1,110 Alabama Truck 37 170 249 - 456 Alabama Total 2,096 174 333 - 2,603 Florida Railroad - - 22 - 22 Georgia Railroad 45 - - - 45 Georgia Truck s - 20 - 21 Georgia Total 45 - 20 - 65 Hawaii Ocean Vessel s - - - s Indiana Railroad - 78 - - 78 Indiana Truck - 32 - - 32 Indiana Total - 110 - - 110 South Carolina Truck - - 2 - 2 Tennessee Truck - - 1 - 1 Texas Railroad 72 - - - 72 Origin State Total 2,213 284 378 - 2,875 Ocean Vessel s - - - s Railroad 1,066 82 106 - 1,255 River 1,110 - - - 1,110 Truck 37 202 272 - 511 2 / 58

456

Probabilistic ranking of database query results  

Science Conference Proceedings (OSTI)

We investigate the problem of ranking answers to a database query when many tuples are returned. We adapt and apply principles of probabilistic models from Information Retrieval for structured data. Our proposed solution is domain independent. It leverages ...

Surajit Chaudhuri; Gautam Das; Vagelis Hristidis; Gerhard Weikum

2004-08-01T23:59:59.000Z

457

Re-ranking algorithms for name tagging  

Science Conference Proceedings (OSTI)

Integrating information from different stages of an NLP processing pipeline can yield significant error reduction. We demonstrate how re-ranking can improve name tagging in a Chinese information extraction system by incorporating information from relation ...

Heng Ji; Cynthia Rudin; Ralph Grishman

2006-06-01T23:59:59.000Z

458

Let your users do the ranking.  

Science Conference Proceedings (OSTI)

Ranking search results is a thorny issue for enterprise search. Search engines rank results using a variety of sophisticated algorithms, but users still complain that search can't ever seem to find anything useful or relevant! The challenge is to provide results that are ranked according to the users' definition of relevancy. Sandia National Laboratories has enhanced its commercial search engine to discover user preferences, re-ranking results accordingly. Immediate positive impact was achieved by modeling historical data consisting of user queries and subsequent result clicks. New data is incorporated into the model daily. An important benefit is that results improve naturally and automatically over time as a function of user actions. This session presents the method employed, how it was integrated with the search engine,metrics illustrating the subsequent improvement to the users' search experience, and plans for implementation with Sandia's FAST for SharePoint 2010 search engine.

Spomer, Judith E.

2010-12-01T23:59:59.000Z

459

NNSA's Sequoia supercomputer ranked as world's fastest  

NLE Websites -- All DOE Office Websites (Extended Search)

| NR-12-06-07 NNSA's Sequoia supercomputer ranked as world's fastest Donald B Johnston, LLNL, (925) 423-4902, johnston19@llnl.gov Printer-friendly From left to right in front of...

460

Desulphurization of coke oven gas by the Stretford Process  

SciTech Connect

The Stretford process is probably the most effective means available for removing hydrogen sulphide from gas streams. For streams which do not contain hydrogen cyanide or excessive oxygen it should be nearly ideal. However, the large volume of waste liquor generated by fixation of hydrogen cyanide has prevented its widespread adoption for coke oven gas treatment. Investigations of various proposals for treating the waste liquor indicate that the only practicable way of dealing with it is by reductive incineration. Although attempts to apply the Peabody-Holmes reductive incineration process have been disappointing, significant progress in overcoming some of its deficiencies has been made. The Zimpro wet oxidation process will provide a convenient method of treating the HCN scrubber effluent at No. 1 Plant. However, it will not treat the sodium based liquor from the Stretford plant. Its application to Stretford waste treatment is limited to situations where ammonium liquors and ammonium sulphate recovery facilities are available. Commissioning of this plant has been delayed while a defect in the air compressor supplied for the plant is being remedied. When the problem of liquid effluent disposal has been overcome, and if reagent chemicals continue to be available at reasonable prices, the Stretford process will be a good choice for coke oven gas desulphurization. 8 figures.

Plenderleith, J.

1981-01-01T23:59:59.000Z

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461

Lame (CubicRank4TensorLame)  

Science Conference Proceedings (OSTI)

... OOF2: The Manual. Lame (CubicRank4TensorLame). ... Name. Lame (CubicRank4TensorLame) — Cubic rank 4 tensor in terms of Lame coefficients. ...

2013-07-05T23:59:59.000Z

462

Interpretation of Rank Histograms for Verifying Ensemble Forecasts  

Science Conference Proceedings (OSTI)

Rank histograms are a tool for evaluating ensemble forecasts. They are useful for determining the reliability of ensemble forecasts and for diagnosing errors in its mean and spread. Rank histograms are generated by repeatedly tallying the rank of ...

Thomas M. Hamill

2001-03-01T23:59:59.000Z

463

Free Malcev algebra of rank three  

E-Print Network (OSTI)

We find a basis of the free Malcev algebra on three free generators over a field of characteristic zero. The specialty and semiprimity of this algebra are proved. In addition, we prove the decomposability of this algebra into subdirect sum of the free Lie algebra rank three and the free algebra of rank three of variety of Malcev algebras generated by a simple seven-dimensional Malcev algebra.

Kornev, Alexandr

2011-01-01T23:59:59.000Z