PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A COAL EXTRACTION PROCESS

Chen, Chong; Kennel, Elliot B; Magean, Liviu; Stansberry, Pete G; Stiller, Alfred H; Zondlo, John W

doi:10.2172/827482

Title: PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A COAL EXTRACTION PROCESS

Full Record
Other Related Research

Abstract

This Department of Energy National Energy Technology Laboratory sponsored project developed processes for converting coal feedstocks to carbon products, including coal-derived pitch, coke foams and fibers based on solvent extraction processes. A key technology is the use of hydrogenation accomplished at elevated temperatures and pressures to obtain a synthetic coal pitch. Hydrogenation, or partial direct liquefaction of coal, is used to modify the properties of raw coal such that a molten synthetic pitch can be obtained. The amount of hydrogen required to produce a synthetic pitch is about an order of magnitude less than the amount required to produce synthetic crude oil. Hence the conditions for synthetic pitch production consume very little hydrogen and can be accomplished at substantially lower pressure. In the molten state, hot filtration or centrifugation can be used to separate dissolved coal chemicals from mineral matter and insolubles (inertinite), resulting in the production of a purified hydrocarbon pitch. Alternatively, if hydrogenation is not used, aromatic hydrocarbon liquids appropriate for use as precursors to carbon products can obtained by dissolving coal in a solvent. As in the case for partial direct liquefaction pitches, undissolved coal is removed via hot filtration or centrifugation. Excess solvent is boiled offmore »« less

Authors:: Chen, Chong; Kennel, Elliot B; Magean, Liviu; Stansberry, Pete G; Stiller, Alfred H; Zondlo, John W

Publication Date:: Sun Jun 20 00:00:00 EDT 2004

Research Org.:: West Virginia University (US)

Sponsoring Org.:: (US)

OSTI Identifier:: 827482

DOE Contract Number:: FC26-01NT41359

Resource Type:: Technical Report

Resource Relation:: Other Information: PBD: 20 Jun 2004

Country of Publication:: United States

Language:: English

Subject:: 01 COAL, LIGNITE, AND PEAT; 08 HYDROGEN; 10 SYNTHETIC FUELS; AROMATICS; CARBON; CENTRIFUGATION; COAL; COKE; FIBERS; FILTRATION; GRAPHITE; HYDROCARBONS; HYDROGEN; HYDROGENATION; INERTINITE; PITCHES; SOLVENT EXTRACTION; SOLVENTS; SYNTHETIC PETROLEUM

Citation Formats


                    Chen, Chong, Kennel, Elliot B, Magean, Liviu, Stansberry, Pete G, Stiller, Alfred H, and Zondlo, John W. PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A COAL EXTRACTION PROCESS.  United States: N. p., 2004. 
        Web.  doi:10.2172/827482.

Copy to clipboard


                    Chen, Chong, Kennel, Elliot B, Magean, Liviu, Stansberry, Pete G, Stiller, Alfred H, & Zondlo, John W. PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A COAL EXTRACTION PROCESS.  United States.  https://doi.org/10.2172/827482

Copy to clipboard


                    Chen, Chong, Kennel, Elliot B, Magean, Liviu, Stansberry, Pete G, Stiller, Alfred H, and Zondlo, John W. 2004.  
        "PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A COAL EXTRACTION PROCESS".  United States.  https://doi.org/10.2172/827482.  https://www.osti.gov/servlets/purl/827482.

Copy to clipboard


                    
@article{osti_827482,

  title        = {PRODUCTION OF FOAMS, FIBERS AND PITCHES USING A COAL EXTRACTION PROCESS},

  author       = {Chen, Chong and Kennel, Elliot B and Magean, Liviu and Stansberry, Pete G and Stiller, Alfred H and Zondlo, John W},

  abstractNote = {This Department of Energy National Energy Technology Laboratory sponsored project developed processes for converting coal feedstocks to carbon products, including coal-derived pitch, coke foams and fibers based on solvent extraction processes. A key technology is the use of hydrogenation accomplished at elevated temperatures and pressures to obtain a synthetic coal pitch. Hydrogenation, or partial direct liquefaction of coal, is used to modify the properties of raw coal such that a molten synthetic pitch can be obtained. The amount of hydrogen required to produce a synthetic pitch is about an order of magnitude less than the amount required to produce synthetic crude oil. Hence the conditions for synthetic pitch production consume very little hydrogen and can be accomplished at substantially lower pressure. In the molten state, hot filtration or centrifugation can be used to separate dissolved coal chemicals from mineral matter and insolubles (inertinite), resulting in the production of a purified hydrocarbon pitch. Alternatively, if hydrogenation is not used, aromatic hydrocarbon liquids appropriate for use as precursors to carbon products can obtained by dissolving coal in a solvent. As in the case for partial direct liquefaction pitches, undissolved coal is removed via hot filtration or centrifugation. Excess solvent is boiled off and recovered. The resultant solid material, referred to as Solvent Extracted Carbon Ore or SECO, has been used successfully to produce artificial graphite and carbon foam.},

  doi          = {10.2172/827482},

  url          = {https://www.osti.gov/biblio/827482},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sun Jun 20 00:00:00 EDT 2004},

  month        = {Sun Jun 20 00:00:00 EDT 2004}

}

Copy to clipboard

Technical Report:

View Technical Report (4.55 MB)

https://doi.org/10.2172/827482

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

PRODUCTION OF CARBON PRODUCTS USING A COAL EXTRACTION PROCESS

Technical Report Dadyburjor, Dady; Biedler, Philip; Chen, Chong; ...

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.more »« less
https://doi.org/10.2172/887333

Full Text Available
PRODUCTION OF CARBON PRODUCTS USING A COAL EXTRACTION PROCESS

Technical Report Dadyburjor, Dady; Chen, Chong; Kennel, Elliot; ...

The purpose of this DOE-funded effort is to develop technologies for carbon products from coal-derived feedstocks. Carbon products can include precursor materials such as solvent extracted carbon ore (SECO) and synthetic pitch (Synpitch). In addition, derived products include carbon composites, fibers, foams and others. Key milestones included producing hydrogenated coal in the Hydrotreating Facility for the first time. The facility is now operational, although digital controls have not yet been completely wired. In addition, ultrasound is being used to investigate enhanced dissolution of coal. Experiments have been carried out.
https://doi.org/10.2172/877119

Full Text Available
Create a Consortium and Develop Premium Carbon Products from Coal

Technical Report Rusinko, Frank; Andresen, John; Hill, Jennifer; ...

The objective of these projects was to investigate alternative technologies for non-fuel uses of coal. Special emphasis was placed on developing premium carbon products from coal-derived feedstocks. A total of 14 projects, which are the 2003 Research Projects, are reported herein. These projects were categorized into three overall objectives. They are: (1) To explore new applications for the use of anthracite in order to improve its marketability; (2) To effectively minimize environmental damage caused by mercury emissions, CO{sub 2} emissions, and coal impounds; and (3) To continue to increase our understanding of coal properties and establish coal usage in non-fuelmore »« less
https://doi.org/10.2172/877696

Full Text Available
Filtering coal liquids: influence of particle sedimentation on filtration

Journal Article Clarke, J; Kimber, G; Rantell, T - Chem. Eng. Prog.; (United States)

At the National Coal Board, (England) methods of coal liquefaction aimed at the production of transport fuels and feedstocks for the chemical industry are currently under development. In one of the processes, coal is dissolved in a high boiling aromatic solvent to produce a digest from which solids, consisting of undissolved coal fragments and mineral matter, are removed by filtration. The resultant coal extract solution is then hydrocracked to premium liquid products and a fraction suitable for recycling as process solvent. For the process to be economically attractive, it is important to achieve a high rate of filtration. In themore »« less
Process for making metallurgical coke

Patent Gorin, E; Jasulaitis, W; Theodore, F; ...

An improved process for making metallurgical coke is provided as follows. An effluent slurry consisting essentially of coal extract, solvent and undissolved coal is obtained from the liquefaction of coal by solvent extraction. Solvent is removed from the slurry by distillation to produce a bottoms product which contains non-distillable extract, undissolved coal and residual solvent. The bottoms product is flowable at elevated temperatures below its carbonizing temperature and solidifiable at lower temperatures. The bottoms product is blended with sufficient finely divided hot coaly solids (Unsuitable per se for making metallurgical coke) in a hot blending zone which is maintained atmore »« less

Similar Records