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Note: This page contains sample records for the topic "dioxide nitrous oxide" 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.


1

Emissions of carbon dioxide, methane and nitrous oxide from soil receiving urban wastewater for maize (Zea mays L.) cultivation  

Science Journals Connector (OSTI)

We investigated how amending maize with wastewater at 120 kg N ha?1 affected crop growth, soil characteristics and emissions of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) compared to plants ferti...

Fabián Fernández-Luqueño; Verónica Reyes-Varela…

2010-06-01T23:59:59.000Z

2

Solubility of carbon dioxide, nitrous oxide, ethane, and nitrogen in 1-butyl-1-methylpyrrolidinium and trihexyl(tetradecyl)phosphonium tris(pentafluoroethyl)trifluorophosphate (eFAP) ionic liquids  

Science Journals Connector (OSTI)

The density and viscosity of the ionic liquids 1-butyl-1-methylpyrrolidinium tris(pentafluoroethyl)trifluorophosphate [C1C4Pyrro][eFAP] and trihexyl(tetradecyl)phosphonium tris(pentafluoroethyl)trifluorophosphate [P66614][eFAP] were measured as a function of temperature and pressure and as a function of temperature, respectively. These two ionic liquids are more viscous than those based in the same anion associated to imidazolium cations. The effect of the addition of water on the density and viscosity of [P66614][eFAP] was studied at pressures close to atmospheric and as a function of the temperature. This ionic liquid is only partially miscible with water, its solubility being of around X H 2 O = 0.2 in the range of (303 to 315) K. Experimental values of the solubility of carbon dioxide, nitrous oxide, ethane, and nitrogen were obtained as a function of temperature and at pressures close to atmospheric. Carbon dioxide and nitrous oxide are the more soluble gases with mole fraction solubilities up to 7 · 10?2. Ethane is four times and 1.3 times less soluble than carbon dioxide in [C1C4Pyrro][eFAP] and [P66614][eFAP], respectively. Nitrogen is one order of magnitude less soluble than the others gases in the two ionic liquids studied. In order to understand behavior of the different gases with these ionic liquids, the thermodynamic functions of solvation such as enthalpy and entropy were calculated from the variation of the Henry’s law constant with temperature. It is shown that the more favorable interactions of the gases with the ionic liquid explain the larger solubility of carbon dioxide and nitrous oxide in [C1C4Pyrro][eFAP]. In the case of [P66614][eFAP], it is the less favorable entropic contribution that explains the lower solubility of ethane in this ionic liquid.

S. Stevanovic; M.F. Costa Gomes

2013-01-01T23:59:59.000Z

3

Role of Nitrous Oxide in Ambulatory Anaesthesia  

Science Journals Connector (OSTI)

As the oldest anaesthetic still in routine use, the continued role of nitrous oxide is frequently questioned. There are a few well-defined situations in which nitrous oxide is contraindicated or undesirable; i...

Sarah Billingham; Ian Smith

2014-12-01T23:59:59.000Z

4

EIA - Greenhouse Gas Emissions - Nitrous Oxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

4. Nitrous Oxide Emissions 4. Nitrous Oxide Emissions 4.1 Total emissions U.S. nitrous oxide emissions in 2009 were 4 MMTCO2e (1.7 percent) below their 2008 total (Table 22). Sources of U.S. nitrous oxide emissions include agriculture, energy use, industrial processes, and waste management (Figure 22). The largest source is agriculture (73 percent), and the majority of agricultural emissions result from nitrogen fertilization of agricultural soils (87 percent of the agriculture total) and management of animal waste (13 percent). U.S. nitrous oxide emissions rose from 1990 to 1994, fell from 1994 to 2002, and returned to an upward trajectory from 2003 to 2007, largely as a result of increased use of synthetic fertilizers. Fertilizers are the primary contributor of emissions from nitrogen fertilization of soils, which grew by more than 30 percent from

5

Process Modeling of Global Soil Nitrous Oxide Emissions  

E-Print Network [OSTI]

Nitrous oxide is an important greenhouse gas and is a major ozone-depleting substance. To understand and

Saikawa, E.

2011-09-01T23:59:59.000Z

6

Nitrous Oxide Emissions from a Municipal Landfill  

Science Journals Connector (OSTI)

Nitrous Oxide Emissions from a Municipal Landfill ... Due to the small area of landfills as compared to other land-use classes, the total N2O emissions from landfills are estimated to be of minor importance for the total emissions from Finland. ...

Janne Rinne; Mari Pihlatie; Annalea Lohila; Tea Thum; Mika Aurela; Juha-Pekka Tuovinen; Tuomas Laurila; Timo Vesala

2005-09-21T23:59:59.000Z

7

Nitrous Oxide Fluxes from the Gulf of Mexico "Dead Zone" Primary Investigator: Craig Stow -NOAA GLERL  

E-Print Network [OSTI]

forecasts require accurate estimates of greenhouse gas emission rates. Currently, there are few measurements Management Research Laboratory Overview Nitrous oxide is a potent greenhouse gas with a global warming oxide is a potent greenhouse gas with a global warming potential ~300 times that of carbon dioxide

8

CARBON SEQUESTRATION IN ARABLE SOILS IS LIKELY TO INCREASE NITROUS OXIDE EMISSIONS, OFFSETTING  

E-Print Network [OSTI]

CARBON SEQUESTRATION IN ARABLE SOILS IS LIKELY TO INCREASE NITROUS OXIDE EMISSIONS, OFFSETTING in strategies for climate protection. 1. Introduction Carbon sequestration has been highlighted recently concentration of carbon dioxide (CO2) in the atmo- sphere include sequestering carbon (C) in soils

9

Rapid thermal oxidation of silicon in mixtures of oxygen and nitrous oxide  

SciTech Connect (OSTI)

Oxidation in nitrous oxide by conventional hot wall furnace processing and by rapid thermal oxidation (RTO) has been a subject of much interest in recent years. RTO is a fundamentally different process than furnace oxidation, however, and the full effects of this type of processing on the oxidation kinetics are not well understood. Oxidation of silicon by RTO at a variety of pressures, temperatures, and oxidation gas mixtures has been studied. Although at lower temperatures (< 850 C) the atmospheric pressure oxidation rate in nitrous oxide is very close to that in oxygen, at higher temperatures the oxidation rate in nitrous oxide is much lower than that in oxygen. At lower pressures in a RTO process, the oxidation rate in nitrous oxide is higher than that in oxygen. The effect of the nitrogen incorporated in the oxide acting as a diffusion barrier has been proposed as the mechanism of temperature dependence for atmospheric pressure oxidation in nitrous oxide. This does not explain the effects seen at lower pressure,s however, The authors propose that some of the intermediate species produced in the decomposition of nitrous oxide into molecular nitrogen, molecular oxygen, and nitric oxide play a role in the initial stages of oxidation by RTO in nitrous oxide.

Grant, J.M.; Karim, Z. [Sharp Microelectronics Technology, Inc., Camas, WA (United States)

1996-12-01T23:59:59.000Z

10

Nitrous oxide emissions from wastewater treatment processes  

Science Journals Connector (OSTI)

...specific ammonia oxidation rate. Symbols represent...Research Council (ARC) for funding this...correlated to its ammonia oxidation rate. 51 Arp, D...1146/annurev.micro.61.080706.093449...1146/annurev.micro.61.080706.093449...2004 Anaerobic oxidation of inorganic nitrogen...

2012-01-01T23:59:59.000Z

11

E-Print Network 3.0 - anesthetic nitrous oxide Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

such concentrations of anesthetics are safe... ), hypoxemia (eg, nitrogen and carbon monoxide), addiction (eg, nitrous oxide), or health effects resulting... from chronic exposure...

12

MODELING THE EMISSIONS OF NITROUS OXIDE (N20) AND METHANE (CH 4) FROM THE  

E-Print Network [OSTI]

MODELING THE EMISSIONS OF NITROUS OXIDE (N20) AND METHANE (CH 4) FROM THE TERRESTRIAL BIOSPHERE;2 #12;MODELING THE EMISSIONS OF NITROUS OXIDE (N 20) AND METHANE (CH 4) FROM THE TERRESTRIAL BIOSPHERE cli- mate has on natural emissions of N2 0 and CH4 from the terrestrial biosphere to the atmosphere

13

Laboratory flammability studies of mixtures of hydrogen, nitrous oxide, and air  

SciTech Connect (OSTI)

At the request of the Department of Energy and the Westinghouse Hanford Company, the Bureau of Mines has investigated the flammability of mixtures of hydrogen, nitrous oxide, and air. This work is relevant to the possible hazards of flammable gas generation from nuclear waste tanks at Hanford, WA. The tests were performed in a 120-L spherical chamber under both quiescent and turbulent conditions using both electric spark and pyrotechnic ignition sources. The data reported here for binary mixtures of hydrogen in air generally confirm the data of previous investigators, but they are more comprehensive than those reported previously. The results clarify to a greater extent the complications associated with buoyancy, turbulence, and selective diffusion. The data reported here for ternary mixtures of hydrogen and nitrous oxide in air indicate that small additions of nitrous oxide (relative to the amount of air) have little effect, but that higher concentrations of nitrous oxide (relative to air) significantly increase the explosion hazard.

Cashdollar, K L; Hertzberg, M; Zlochower, I A; Lucci, C E; Green, G M; Thomas, R A [Bureau of Mines, Pittsburgh, PA (United States). Pittsburgh Research Center

1992-06-26T23:59:59.000Z

14

The variability of methane, nitrous oxide and sulfur hexafluoride in Northeast India  

E-Print Network [OSTI]

High-frequency atmospheric measurements of methane (CH[subscript 4]), nitrous oxide (N[subscript 2]O) and sulfur hexafluoride (SF[subscript 6]) from Darjeeling, India are presented from December 2011 (CH[subscript 4])/March ...

Chatterjee, A.

15

Development of a New Chemiluminescence Detector for Sub-ppm Level Nitrous Oxide  

Science Journals Connector (OSTI)

......atmosphere (15) and sea water (7), sometimes...sub-ppm level atmospheric N2O without any...through a standard gas generator (Model SGGU-72...Lodger, Jr. Atmospheric ni- trious oxide...Measurement of atmospheric nitrous oxide using...oxide in air and water using a 5A molecular......

Shun Araki; Shigetaka Suzuki; Masaaki Yamada; Hiroshi Suzuki; Toshiyuki Hobo

1978-06-01T23:59:59.000Z

16

A kinetics study of the atmospheric pressure CVD reaction of silane and nitrous oxide  

SciTech Connect (OSTI)

A mechanistic study of oxide deposition from silane and nitrous oxide between 495{sup 0}C and 690{sup 0}C was performed in a laminar flow, cool wall reactor. Results indicate the existence of two distinct chemical pathways. At high nitrous oxide concentrations, the deposition reaction is dominated by radical chain chemistry initiated by the decomposition of N/sub 2/O. At lower N/sub 2/O concentrations, the decomposition of silane to form silylene (SiH/sub 2/) initiates the deposition. Studies of the reaction of disilane and nitrous oxide confirmed the role of SiH/sub 2/ in the deposition. Reactions involving SiH/sub 2/ are used to explain the observed growth of sub-stoichiometric oxides under low N/sub 2/O conditions.

Chapple-Sokol, J.D.; Giunta, C.J.; Gordon, R.G. (Harvard Univ., Cambridge, MA (USA). Dept. of Chemistry)

1989-10-01T23:59:59.000Z

17

Modern Records of Atmospheric Nitrous Oxide (N2O) and a 2000-year Ice-core  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Modern Records of Atmospheric Nitrous Oxide (N2O) and a 2000-year Ice-core Modern Records of Atmospheric Nitrous Oxide (N2O) and a 2000-year Ice-core Record from Law Dome, Antarctica Introduction This page provides an introduction and links to records of atmospheric nitrous oxide (N2O) over the last 2000 years, emphasizing large data bases each representing currently active stations. Records in recent decades (time period depending on location) have been obtained from samples of ambient-air at remote locations, which represent changing global atmospheric conditions rather than influences of local sources. The longer (2000-year) record is from the Law Dome ice core in Antarctica. The ice-core record has been merged with modern annual data from Cape Grim, Tasmania to provide a 2000-year time series of annual values. A spline function has been fit to the data to provide a continuous time series of

18

EMISSIONS OF NITROUS OXIDE AND METHANE FROM CONVENTIONAL AND ALTERNATIVE FUEL MOTOR VEHICLES  

E-Print Network [OSTI]

-produced electricity for battery electric vehicles. Already, vehicles powered by compressed natural gas, propane. LIPMAN AND MARK A. DELUCCHI example, promising strategies for powering motor vehicles with reduced GHGEMISSIONS OF NITROUS OXIDE AND METHANE FROM CONVENTIONAL AND ALTERNATIVE FUEL MOTOR VEHICLES

Kammen, Daniel M.

19

Sensitive detection of methane and nitrous oxide isotopomers using a continuous wave quantum cascade laser  

Science Journals Connector (OSTI)

A continuous wave quantum cascade laser (QCL), operating near 8.1 ?m...4) and nitrous oxide (N2O) stable isotopes. Several rotational transitions of 14N2 16O, 15N14N16O, 14N2 18O,

G. Gagliardi; F. Tamassia; P. De Natale…

2002-06-01T23:59:59.000Z

20

Estimation of nitrous oxide emissions (GHG) from wastewater treatment plants using closed-loop mass balance and data reconciliation  

Science Journals Connector (OSTI)

The amount of greenhouse gases (GHG), especially, nitrous oxide (N2O) emitted from wastewater treatment plants (WWTP) using data reconciliation and closed-loop mass balance was estimated. This study is based on a...

JungJin Lim; Boddupalli Sankarrao; TaeSeok Oh…

2012-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Nitrous oxide (N?O) isotopic composition in the troposphere : instrumentation, observations at Mace Head, Ireland, and regional modeling  

E-Print Network [OSTI]

Nitrous oxide (N?O) is a significant greenhouse gas and main contributor to stratospheric ozone destruction. Surface measurements of N?O mole fractions have been used to attribute source and sink strengths, but large ...

Potter, Katherine Ellison

2011-01-01T23:59:59.000Z

22

Nitrous Oxide as a Scavenger for Electrons in the Radiolysis of Propane  

Science Journals Connector (OSTI)

... (~400 ml.) using a cobalt-60 ¡-ray source. The dose-rate in propane was 5 ´ 1014 eV ml,?1 min?1 (nitrous oxide dosimeter: assuming ... eV2 and using an experimentally determined value of 1.42 for the stopping power of propane relative to N2O). Total doses were 1016?1017 eV ml.?1. The results ...

G. R. A. JOHNSON; J. M. WARMAN

1964-07-04T23:59:59.000Z

23

Development of a Spectroscopic Technique for Continuous Online Monitoring of Oxygen and Site-Specific Nitrogen Isotopic Composition of Atmospheric Nitrous Oxide  

E-Print Network [OSTI]

Nitrous oxide is an important greenhouse gas and ozone-depleting-substance. Its sources are diffuse and poorly characterized, complicating efforts to understand anthropogenic impacts and develop mitigation policies. Online, ...

Harris, Eliza

24

Effect of Thermal Neutron Irradiation on Oxide Catalysts for the Decomposition of Nitrous Oxide  

Science Journals Connector (OSTI)

... alpha-particles which are produced by an (n, a) reaction with lithium-6 or boron-10 atoms. Nickel oxide contains excess oxygen ions as a £-type semiconductor and probably ...

YASUKAZU SAITO; YUKIO YONEDA; SHOJI MAKISHIMA

1959-02-07T23:59:59.000Z

25

Regional-Scale Assessment of Nitrous Oxide Emissions within the US Corn Belt: The Impact of Precipitation and Agricultural Drainage on Indirect Emissions  

E-Print Network [OSTI]

Regional-Scale Assessment of Nitrous Oxide Emissions within the US Corn Belt: The Impact of Precipitation and Agricultural Drainage on Indirect Emissions Tim Griffis1, Xuhui Lee2, John Baker3, Peter, but mitigation strategies have been limited by the large uncertainties in both direct and indirect emission

Minnesota, University of

26

Instrument Development and Measurements of the Atmospheric Pollutants Sulfur Dioxide, Nitrate Radical, and Nitrous Acid by Cavity Ring-down Spectroscopy and Cavity Enhanced Absorption Spectroscopy  

E-Print Network [OSTI]

A. , A method of nitrogen dioxide and sulphur dioxidedetermination of nitrogen dioxide and sulfur dioxide in theDOAS) have measured nitrogen dioxide (NO 2 ), nitrate

Medina, David Salvador

2011-01-01T23:59:59.000Z

27

The Resolution of Mixtures of Carbon Dioxide and Nitrous Oxide by Gas Solid Chromatography  

Science Journals Connector (OSTI)

......1106. R. P. DeGrazio The Dow Chemical Company, Rocky Flats Division, Golden, Colorado The Resolution of Mixtures...Chromatography* by R. P. DeGrazio, The Dow Chemical Company, Rocky Flats Division, Golden, Colorado A simple and unique chromato......

R. P. DeGrazio

1965-06-01T23:59:59.000Z

28

Modeling Seasonal Variations in Carbon Dioxide and Nitrous Oxide in the Vadose Zone  

Science Journals Connector (OSTI)

...temperature, and soil atmosphere composition were being monitored was specifically...and CEL pools were predominant in the composition of the maize residue and were mainly...also taken into account. agriculture agrochemicals Avignon France Cambisols CANTIS carbon...

P. Cannavo; F. Lafolie; B. Nicolardot; P. Renault

29

Nitrous oxide and carbon dioxide emissions from pelletized and nonpelletized poultry litter incorporated into soil  

Science Journals Connector (OSTI)

While several studies have shown that the addition of animal manures to soil can increase N2O and CO2 emissions, limited information is available on the effect that manure physical characteristics can have on the...

M. L. Cabrera; S. C. Chiang; W. C. Merka; O. C. Pancorbo; S. A. Thompson

30

Production of Carbon from Carbon Dioxide with Iron Oxides and High-Temperature Solar Energy  

Science Journals Connector (OSTI)

Production of Carbon from Carbon Dioxide with Iron Oxides and High-Temperature Solar Energy ... 2 Since it is the major oxidation product from all hydrocarbon combustion processes, its presence permeates nearly every sector of the world economy. ... Thus, CO2 recycling and utilization seems to be a fundamental task from both an ecological and economical point of view. ...

K. Ehrensberger; R. Palumbo; C. Larson; A. Steinfeld

1997-03-03T23:59:59.000Z

31

Effect of Gadolinium Doping on the Air Oxidation of Uranium Dioxide  

SciTech Connect (OSTI)

Researchers at the Pacific Northwest National Laboratory (PNNL) investigated the effects of gadolinia concentration on the air oxidization of gadolinia-doped uranium dioxide using thermogravimetry and differential scanning calorimetry to determine if such doping could improve uranium dioxide's stability as a nuclear fuel during potential accident scenarios in a nuclear reactor or during long-term disposal. We undertook this study to determine whether the resistance of the uranium dioxide to oxidation to the orthorhombic U3O8 with its attendant crystal expansion could be prevented by addition of gadolinia. Our studies found that gadolinium has little effect on the thermal initiation of the first step of the reported two-step air oxidation of UO2; however, increasing gadolinia content does stabilize the initial tetragonal or cubic product allowing significant oxidation before the second expansive step to U3O8 begins.

Scheele, Randall D.; Hanson, Brady D.; Cumblidge, Stephen E.; Jenson, Evan D.; Kozelisky, Anne E.; Sell, Rachel L.; MacFarlan, Paul J.; Snow, Lanee A.

2004-12-04T23:59:59.000Z

32

Chlorine activation indoors and outdoors via surface-mediated reactions of nitrogen oxides with hydrogen chloride.  

E-Print Network [OSTI]

complexes between nitrogen dioxide, nitric acid, nitrous1992) Indoor ozone and nitrogen dioxide: A potential pathwaybed of SiO 2 pellets. Nitrogen dioxide is introduced from a

2009-01-01T23:59:59.000Z

33

Zinc-catalyzed copolymerization of carbon dioxide and propylene oxide  

E-Print Network [OSTI]

dioxide has recently been paid attention in the field of extraction, separation, and reaction medium, its aptitude for both a reaction solvent and a reactant was examined in zinc glutarate-catalyzed reactions. As a result, it was proved that supercritical...

Katsurao, Takumi

1994-01-01T23:59:59.000Z

34

Determinations of Carbon Dioxide and Methane by Dual Catalyst Flame Ionization Chromatography and Nitrous Oxide by Electron Capture Chromatography  

Science Journals Connector (OSTI)

......equilibrate with atmospheric pressure through...applications involving atmospheric analyses, the instrument...electrolytically from distilled water by a General Electric...Massachusetts) hydrogen generator. The gas is further...the analysis. The water formed by the palladium...737-1-B "clean air generator," a preparative......

Ray F. Weiss

1981-12-01T23:59:59.000Z

35

Determinations of Carbon Dioxide and Methane by Dual Catalyst Flame Ionization Chromatography and Nitrous Oxide by Electron Capture Chromatography  

Science Journals Connector (OSTI)

......reduced by introducing additional fuel hydrogen before the palladium...smaller sample size is that the consumption of standards in long-term...1979 aboard the Research Vessel Wecoma during Leg 9 of the...because of its low rate of consumption of standard gases, but also......

Ray F. Weiss

1981-12-01T23:59:59.000Z

36

Determinations of Carbon Dioxide and Methane by Dual Catalyst Flame Ionization Chromatography and Nitrous Oxide by Electron Capture Chromatography  

Science Journals Connector (OSTI)

......thermistor has a low thermal mass and the circuit...and have longer thermal exchange times will...detectors such as the thermal conductivity detector...equatorial Pacific Ocean during a 24 day...Department of Energy. References Journal...Methanizer" catalytic converter. 5. W.E. Wentworth......

Ray F. Weiss

1981-12-01T23:59:59.000Z

37

Effect of encapsulated calcium carbide on dinitrogen, nitrous oxide, methane, and carbon dioxide emissions from flooded rice  

Science Journals Connector (OSTI)

The efficiency of N use in flooded rice is usually low, chiefly due to gaseous losses. Emission of CH4, a gas implicated in global warming, can also be substantial in flooded rice. In a greenhouse study, the nitr...

K. F. Bronson; A. R. Mosier

1991-05-01T23:59:59.000Z

38

Treatment of nitrous off-gas from dissolution of sludges  

SciTech Connect (OSTI)

Several configurations have been reviewed for the NO{sub x} removal of dissolver off-gas. A predesign has been performed and operating conditions have been optimized. Simple absorption columns seems to be sufficient. NHC is in charge of the treatment of sludges containing mainly uranium dioxide and metallic uranium. The process is based on the following processing steps a dissolution step to oxidize the pyrophoric materials and to dissolve radionuclides (uranium, plutonium, americium and fission products), a solid/liquid separation to get rid of the insoluble solids (to be disposed at ERDF), an adjustment of the acid liquor with neutronic poisons, and neutralization of the acid liquor with caustic soda. The dissolution step generates a flow of nitrous fumes which was evaluated in a previous study. This NO{sub x} flow has to be treated. The purpose of this report is to study the treatment process of the nitrous vapors and to 0482 perform a preliminary design. Several treatment configurations are studied and the most effective process option with respect to the authorized level of discharge into atmosphere is discussed. As a conclusion, recommendations concerning the unit preliminary design are given.

Flament, T.A.

1998-08-25T23:59:59.000Z

39

A comparative study of polyethylene oxide/nanoclay composite preparation via supercritical carbon dioxide and melt processing  

Science Journals Connector (OSTI)

The efficacy of supercritical carbon dioxide (ScCO2...) treatment compared with conventional melt processing methods in preparing nanoclay composites from poly(ethylene oxide) (PEO)...2 processing yielded more ho...

Gordon Armstrong; Keith Fortune

2007-10-01T23:59:59.000Z

40

Sulfur dioxide oxidation and plume formation at cement kilns  

SciTech Connect (OSTI)

Results of source sampling at the Glens Falls cement kiln in Glens Falls, N.Y., are reported for sulfur oxides, ammonia, hydrochloric acid, oxygen, and moisture content. The origin of a detached, high-opacity, persistent plume originating from the cement kiln stack is investigated. It is proposed that this plume is due to ammonium salts of SOx and sulfuric acid that have been formed in condensed water droplets in the plume by the pseudocatalytic action of ammonia. (1 diagram, 1 graph, 22 references, 7 tables)

Dellinger, B.; Grotecloss, G.; Fortune, C.R.; Cheney, J.L.; Homolya, J.B.

1980-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Nitrogen Oxides in the Nocturnal Boundary Layer: Chemistry of Nitrous Acid (HONO) and the Nitrate Radical (N03)  

SciTech Connect (OSTI)

Summary Chemical processes occurring at night in the lowest part of the urban atmosphere, the so called nocturnal boundary layer (NBL), can influence the composition of the atmosphere during the night as well as the following day. They may impact the budgets of some of the most important pollutants, such as ozone and nitrogen oxides, as well as influence size and composition of particular matter. Few studies have thus far concentrated on the nocturnal chemistry of the urban NBL, most likely due to the strong influence of vertical transport and mixing, which requires the measurement of trace gas profiles instead of simple point observations. Motivated by our lack of observations and understanding of nocturnal chemistry, the focus of this project was the study of the vertical distribution of trace gases and the altitude dependence of nocturnal chemistry under polluted conditions through field observations and modeling studies. The analysis of three field experiments (TEXAQS, Houston, 2000; Phoenix Sunrise Ozone Experiment, 2001; NAPOX, Boston, 2002), two of which were performed in this project, showed that ozone concentrations typically increase with height in the lowest 150m, while NO2 typically decreases. NO3, the dominant nocturnal radical species, showed much higher concentrations in the upper part of the NBL, and was often not present at the ground. With the help of a one-dimensional chemical transport model, developed in this project, we found that the interaction of ground emissions of NOx and hydrocarbons, together with their vertical transport, is responsible for the vertical profiles. The dominant chemical reactions influencing ozone, NO2 and NO3 are the reaction of ozone and NO3 with freshly emitted NO. Sensitivity studies with our model showed that the magnitude of the trace gas gradients depend both on the emission rates and the vertical stability of the NBL. Observations and model analysis clearly show that nocturnal chemistry in urban areas is altitude dependent. Measurements at one altitude, for example at the ground, where most air quality monitoring stations are located, are not representative for the rest of the NBL. Our model also revealed that radical chemistry is, in general, altitude dependent at night. We distinguish three regions: an unreactive, NO rich, ground layer; an upper, O3 and NO3 dominated layer, and a reactive mixing layer, where RO2 radicals are mixed from aloft with NO from the ground. In this reactive layer an active radical chemistry and elevated OH radical levels can be found. The downward transport of N2O5 and HO2NO2, followed by their thermal decay, was also identified as a radical source in this layer. Our observations also gave insight into the formation of HONO in the NBL. Based on our field experiments we were able to show that the NO2 to HONO conversion was relative humidity dependent. While this fact was well known, we found that it is most likely the uptake of HONO onto surfaces which is R.H. dependent, rather than the NO2 to HONO conversion. This finding led to the proposal of a new NO2 to HONO conversion mechanism, which is based on solid physical chemical principles. Noteworthy is also the observation of enhanced NO2 to HONO conversion during a dust storm event in Phoenix. The final activity in our project investigated the influence of the urban canopy, i.e. building walls and surfaces, on nocturnal chemistry. For the first time the surface area of a city was determined based on a Geographical Information System database of the city of Santa Monica. The surface to volume areas found in this study showed that, in the 2 lower part of the NBL, buildings provide a much larger surface area than the aerosol. In addition, buildings take up a considerable amount of the volume near the ground. The expansion of our model and sensitivity studies based on the Santa Monica data revealed that the surface area of buildings considerably influences HONO levels in urban areas. The volume reduction leads to a decrease of O3 and an increase of NO2 near the ground due to the stronger impact o

Jochen Stutz

2005-05-24T23:59:59.000Z

42

KINETICS OF OXIDATION OF AQUEOUS SULFUR(IV) BY NITROGEN DIOXIDE YIN-NAN LEE AND STEPHEN E. SCHWARTZ  

E-Print Network [OSTI]

, reagent gas solubilities, mass trans- fer, stoichiometry, and reaction rate were not systematicallyKINETICS OF OXIDATION OF AQUEOUS SULFUR(IV) BY NITROGEN DIOXIDE YIN-NAN LEE AND STEPHEN E. SCHWARTZ for the oxidation of these compounds and their incorpo- ration into atmospheric liquid water are not fully

Schwartz, Stephen E.

43

Oxidation of carbon monoxide and hydrocarbons on platinum and palladium catalysts in the presence of sulfur dioxide  

SciTech Connect (OSTI)

The authors report on a study of the effect of sulfur dioxide on the activity of platinum and palladium catalysts with respect to oxidation of the principal toxic components in the exhaust gases of internal combustion engines: carbon monoxide and hydrocarbons (propylene (C/sub 3/H/sub 6/) and propane (C/sub 3/H/sub 8/)). The experiments were carried out in a flow system equipped with Beckman infrared analyzers to monitor the concentrations of CO and hydrocarbons and of sulfur dioxide. A series of thermal desorption experiments was carried out in a low-pressure flow system with mass spectrometric analysis of the gas phase. The results indicate that the low-temperature adsorption of sulfur dioxide on platinum (and also palladium) catalysts inhibits the oxidation of carbon monoxide and propylene. The poisoning effect of O/sub 2/ is due to blockage of the platinum centers for adsorption of the oxidizable compounds and oxygen.

Panchishnyi, V.I.; Bondareva, N.K.; Sklyarov, A.V.; Rozanov, V.V.; Chadina, G.P.

1988-11-10T23:59:59.000Z

44

Analysis of Strategies for Reducing Multiple Emissions from Electric Power Plants: Sulfur Dioxide, Nitrogen Oxides, Carbon Dioxide, and Mercury and a Renewable Portfolio Standard  

Gasoline and Diesel Fuel Update (EIA)

3 3 ERRATA Analysis of Strategies for Reducing Multiple Emissions from Electric Power Plants: Sulfur Dioxide, Nitrogen Oxides, Carbon Dioxide, and Mercury and a Renewable Portfolio Standard July 2001 Energy Information Administration Office of Integrated Analysis and Forecasting U.S. Department of Energy Washington, DC 20585 This Service Report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should be attributed to the Contacts This report was prepared by the Office of Integrated Analysis and Forecasting, Energy Information Adminis- tration. General questions concerning the report may be directed to Mary J. Hutzler (202/586-2222, mhutzler @eia.doe.gov), Director of the Office of Integrated Analysis and Forecasting, Scott B. Sitzer (202/586-2308,

45

Carbon dioxide adsorbents containing magnesium oxide suitable for use at high temperatures  

DOE Patents [OSTI]

Adsorption of carbon dioxide from gas streams at temperatures in the range of 300 to 500.degree. C. is carried out with a solid adsorbent containing magnesium oxide, preferably promoted with an alkali metal carbonate or bicarbonate so that the atomic ratio of alkali metal to magnesium is in the range of 0.006 to 2.60. Preferred adsorbents are made from the precipitate formed on addition of alkali metal and carbonate ions to an aqueous solution of a magnesium salt. Atomic ratios of alkali metal to magnesium can be adjusted by washing the precipitate with water. Low surface area adsorbents can be made by dehydration and CO.sub.2 removal of magnesium hydroxycarbonate, with or without alkali metal promotion. The process is especially valuable in pressure swing adsorption operations.

Mayorga, Steven Gerard (Allentown, PA); Weigel, Scott Jeffrey (Allentown, PA); Gaffney, Thomas Richard (Allentown, PA); Brzozowski, Jeffrey Richard (Macungie, PA)

2001-01-01T23:59:59.000Z

46

Photocatalytic and chemical oxidation of organic compounds in supercritical carbon dioxide. Progress report for FY97  

SciTech Connect (OSTI)

'The background for the project is briefly reviewed and the work done during the nine months since funding was received is documented. Work began in January, 1997. A post doctoral fellow joined the team in April. The major activities completed this fiscal year were: staffing the project, design of the experimental system, procurement of components, assembly of the system. preparation of the Safe Operating Procedure and ES and H compliance, pressure testing, establishing data collection and storage methodology, and catalyst preparation. Objective The objective of the project is to develop new chemistry for the removal of organic contaminants from supercritical carbon dioxide. This has application in processes used for continuous cleaning and extraction of parts and waste materials. A secondary objective is to increase the fundamental understanding of photocatalytic chemistry. Cleaning and extraction using supercritical carbon dioxide (scCO{sub 2}) can be applied to the solution of a wide range of environmental and pollution prevention problems in the DOE complex. Work is being done that explores scCO{sub 2} in applications ranging from cleaning contaminated soil to cleaning components constructed from plutonium. The rationale for use of scCO{sub 2} are based on the benign nature, availability and low cost, attractive solvent properties, and energy efficient separation of the extracted solute from the solvent by moderate temperature or pressure changes. To date, R and D has focussed on the methods and applications of the extraction steps of the process. Little has been done that addresses methods to polish the scCO{sub 2} for recycle in the cleaning or extraction operations. In many applications it will be desirable to reduce the level of contamination from that which would occur at steady state operation of a process. This proposal addresses chemistry to achieve that. This would be an alternative to removing a fraction of the contaminated scCO{sub 2} for disposal and using makeup scCO{sub 2}. A chemical polishing operation can reduce the release of CO{sub 2} from the process. It can also reduce the consumption of reagents that may be used in the process to enhance extraction and cleaning. A polishing operation will also reduce or avoid formation of an additional waste stream. Photocatalytic and other photochemical oxidation chemistry have not been investigated in scCO{sub 2}. The large base of information for these reactions in water, organic solvents, or air suggest that the chemistry will work in carbon dioxide. There are compelling reasons to believe that the properties of scCO{sub 2} should increase the performance of photocatalytic chemistry over that found in more conventional fluid phases.'

Blake, D.M.; Bryant, D.L.; Reinsch, V.

1997-09-30T23:59:59.000Z

47

Denitrifying Alphaproteobacteria from the Arabian Sea That Express nosZ, the Gene Encoding Nitrous Oxide Reductase, in Oxic and Suboxic Waters  

Science Journals Connector (OSTI)

...the present study a closely related (99% nucleotide identity...clone BATS14_163), a closely related denitrifier (Fig. 2), were...atmospheric carbon dioxide. Policy document 12/05. Royal Society...liberates the climate-changing gas dimethylsulfide in several marine...

Michael Wyman; Sylvia Hodgson; Clare Bird

2013-02-08T23:59:59.000Z

48

The Scientific Basis of Tobacco Product Regulation  

E-Print Network [OSTI]

contains nitric oxide, nitrogen dioxide and nitrous oxide,nitric oxide, while nitrogen dioxide is rapidly formedreadily oxidized to nitrogen dioxide, a pulmonary irritant.

World Health Organization

2008-01-01T23:59:59.000Z

49

Formation of submicron oxide widths on aluminum in the presence of keV electron beams and CO/sub 2/ or N/sub 2/O  

SciTech Connect (OSTI)

The purpose of this paper is to report the size of oxide islands or line widths that can be grown as smaller diameter electron beams are used for the oxidation. The implications of the potential lateral resolution available between oxide lines for electronic materials are discussed. The localize dioxide growth on thin Al films occurs in the presence of .5 to 10 keV electron beams and high vacuum level pressures of carbon dioxide or nitrous oxide. Auger electron spectroscopy shows saturation of the O (KLL) signal and depletion of the Al (LMM) signal after an exposure of 5000 l carbon dioxide with a 2 keV beam of 7 A/sq. cm. The oxide is spatially restricted to the beam impact region and is stable for long periods of time in vacuum. The most plausible mechanism for this oxide growth is dissociation of the carbon dioxide or the nitrous oxide by the electron beam in the region of impingement on or near the surface. Oxygen atoms thus formed can then react with the Al, and carbon monoxide or nitrogen desorbs.

Pitts, J.R.; Massopust, T.P.; Czanderna, A.W.; Kazmerski, L.L.

1986-03-01T23:59:59.000Z

50

Current emission trends for nitrogen oxides, sulfur dioxide, and volatile organic compounds by month and state: Methodology and results  

SciTech Connect (OSTI)

This report presents estimates of monthly sulfur dioxide (SO{sub 2}), nitrogen oxides (NO{sub x}), and nonmethane voltatile organic compound (VOC) emissions by sector, region, and state in the contiguous United States for the years 1975 through 1988. This work has been funded as part of the National Acid Precipitation Assessment Program`s Emissions and Controls Task Group by the US Department of Energy (DOE) Office of Fossil Energy (FE). The DOE project officer is Edward C. Trexler, DOE/FE Office of Planning and Environment.

Kohout, E.J.; Miller, D.J.; Nieves, L.A.; Rothman, D.S.; Saricks, C.L.; Stodolsky, F.; Hanson, D.A.

1990-08-01T23:59:59.000Z

51

Current emission trends for nitrogen oxides, sulfur dioxide, and volatile organic compounds by month and state: Methodology and results  

SciTech Connect (OSTI)

This report presents estimates of monthly sulfur dioxide (SO{sub 2}), nitrogen oxides (NO{sub x}), and nonmethane voltatile organic compound (VOC) emissions by sector, region, and state in the contiguous United States for the years 1975 through 1988. This work has been funded as part of the National Acid Precipitation Assessment Program's Emissions and Controls Task Group by the US Department of Energy (DOE) Office of Fossil Energy (FE). The DOE project officer is Edward C. Trexler, DOE/FE Office of Planning and Environment.

Kohout, E.J.; Miller, D.J.; Nieves, L.A.; Rothman, D.S.; Saricks, C.L.; Stodolsky, F.; Hanson, D.A.

1990-08-01T23:59:59.000Z

52

Carbon dioxide fixation by Metallosphaera yellowstonensis and acidothermophilic iron-oxidizing microbial communities from Yellowstone National Park  

SciTech Connect (OSTI)

The fixation of inorganic carbon (as carbon dioxide) has been documented in all three domains of life and results in the biosynthesis of a diverse suite of organic compounds that support the growth of heterotrophic organisms. The primary aim of this study was to assess the importance of carbon dioxide fixation in high-temperature Fe(III)-oxide mat communities and in pure cultures of one of the dominant Fe(II)-oxidizing organisms (Metallosphaera yellowstonensis strain MK1) present in situ. Protein-encoding genes of the complete 3-hydroxypropionate/4-hydroxybutyrate (3-HP/4-HB) carbon fixation pathway were identified in pure-cultures of M. yellowstonensis strain MK1. Metagenome sequencing from the same environments also revealed genes for the 3-HP/4-HB pathway belonging to M. yellowstonensis populations, as well as genes for a complete reductive TCA cycle from Hydrogenobaculum spp. (Aquificales). Stable isotope (13CO2) labeling was used to measure the fixation of CO2 by M. yellowstonensis strain MK1, and in ex situ assays containing live Fe(III)-oxide microbial mats. Results showed that M. yellowstonensis strain MK1 fixes CO2 via the 3-HP/4-HB pathway with a fractionation factor of ~ 2.5 ‰. Direct analysis of the 13C composition of dissolved inorganic C (DIC), dissolved organic C (DOC), landscape C and microbial mat C showed that mat C is comprised of both DIC and non-DIC sources. The estimated contribution of DIC carbon to biomass C (> ~ 35%) is reasonably consistent with the relative abundance of known chemolithoautotrophs and corresponding CO2 fixation pathways detected in metagenome sequence. The significance of DIC as a major source of carbon for Fe-oxide mat communities provides a foundation for examining microbial interactions in these systems that are dependent on the activity of autotrophic organisms such as Hydrogenobaculum and Metallosphaera spp.

Jennings, Ryan; Whitmore, Laura M.; Moran, James J.; Kreuzer, Helen W.; Inskeep, William P.

2014-05-01T23:59:59.000Z

53

Transferring oxygen isotopes to 1,2,4-benzotriazine 1-oxides forming the corresponding 1,4-dioxides by using the HOF$CH3CN complex  

E-Print Network [OSTI]

Transferring oxygen isotopes to 1,2,4-benzotriazine 1-oxides forming the corresponding 1,4-dioxides Available online 14 August 2012 Keywords: Oxygen transfer 18 O isotope Tirapazamine HOF$CH3CN F2/N2 N is their ability to capitalize on the low oxygen (hypoxic) environment found in many solid tumors. The lead

Gates, Kent. S.

54

Global oceanic production of nitrous oxide  

Science Journals Connector (OSTI)

...1sigma) based on gas-exchange parametrization...upper 500 m of the water column. -The...its effect on solubility. -Our estimates...emissions based on gas-exchange parametrization...load of organic nitrogen. This fertilization...also affect the solubility of N2O. Rising...created by warming water masses after their...

2012-01-01T23:59:59.000Z

55

3, 729764, 2006 Nitrous oxide in the  

E-Print Network [OSTI]

. At the time of our cruise, water renewal had proceeded to the eastern Gotland Basin, whereas the western Gotland Basin was still unaffected by the inflow. The deep water renewal was detectable concentrations: Shallow stations in the10 Kiel Bight and Pomeranian Bight were well-ventilated with uniform N2O

Paris-Sud XI, Université de

56

Nitrous oxide emissions from wastewater treatment processes  

Science Journals Connector (OSTI)

...samples followed by GC analysis has been used in both laboratory scale reactors and full-scale plants...two laboratory scale reactors. Foley et al. [23...measurements. Combining the analyses of both the microsensor...significantly increases the reliability of data. Similar to...

2012-01-01T23:59:59.000Z

57

Diphosphine Dioxide Cages and Hydrogen Peroxide Adducts of Phosphine Oxides: Syntheses and Applications in Surface Science  

E-Print Network [OSTI]

the P=O group for probing the surface acidity of oxides. (c) Most importantly, getting more insight regarding the nature of the P=O/surface interaction. Hereby, the mobility of the adsorbed species is of fundamental interest. In the classical 31P MAS...

Hilliard, Casie Renee

2013-12-09T23:59:59.000Z

58

REDUCTION AND SEQUESTRATION OF PERTECHNETATE TO TECHNETIUM DIOXIDE AND PROTECTION FROM RE-OXIDATION  

SciTech Connect (OSTI)

This effort is part of the technetium management initiative and provides data for the handling and disposition of technetium. To that end, the objective of this effort was to challenge tin(II)apatite (Sn(II)apatite) against double-shell tank 241-AN-I0S simulant spiked with pertechnetate (TcO{sub 4}{sup -}). The Sn(II)apatite used in this effort was synthesized on site using a recipe developed at and provided by Sandia National Laboratories; the synthesis provides a high quality product while requiring minimal laboratory effort. The Sn(II)apatite reduces pertechnetate from the mobile +7 oxidation state to the non-mobile +4 oxidation state. It also sequesters the technetium and does not allow for re-oxidization to the mobile +7 state under acidic or oxygenated conditions within the tested period of time (6 weeks). Previous work indicated that the Sn(II)apatite can achieve an ANSI leachability index in Cast Stone of 12.8. The technetium distribution coefficient for Sn(II)apatite exhibits a direct correlation with the pH of the contaminated media. Table 1 shows Sn(II)apatite distribution coefficients as a function of pH. The asterisked numbers indicate that the lower detection limit of the analytical instrument was used to calculate the distribution coefficient as the concentration of technetium left in solution was less than the detection limit.

DUNCAN JB; JOHNSON JM; MOORE WP; HAGERTY KJ; RHODES RN; MOORE RC

2012-07-11T23:59:59.000Z

59

SYNGAS PRODUCTION VIA HIGH-TEMPERATURE CO-ELECTROLYSIS OF STEAM AND CARBON DIOXIDE IN A SOLID-OXIDE STACK  

SciTech Connect (OSTI)

This paper presents results of recent experiments conducted at the INL studying coelectrolysis of steam and carbon dioxide in a 10-cell high-temperature solid-oxide electrolysis stack. Coelectrolysis is complicated by the fact that the reverse shift reaction occurs concurrently with the electrolytic reduction reactions. All reactions must be properly accounted for when evaluating results. Electrochemical performance of the stack was evaluated over a range of temperatures, compositions, and flow rates. The apparatus used for these tests is heavily instrumented, with precision mass-flow controllers, on-line dewpoint and CO2 sensors, and numerous pressure and temperature measurement stations. It also includes a gas chromatograph for analyzing outlet gas compositions. Comparisons of measured compositions to predictions obtained from a chemical equilibrium co-electrolysis model are presented, along with corresponding polarization curves. Results indicate excellent agreement between predicted and measured outlet compositions. Coelectrolysis significantly increases the yield of syngas over the reverse water gas shift reaction equilibrium composition. The process appears to be a promising technique for large-scale syngas production.

Carl M. Stoots; James E. O'Brien; Joseph J. Hartvigsen

2007-06-01T23:59:59.000Z

60

Sulfur isotope fractionation during oxidation of sulfur dioxide: gas-phase oxidation by OH radicals and aqueous oxidation by H2O2, O3 and iron catalysis  

E-Print Network [OSTI]

The oxidation of SO[subscript 2] to sulfate is a key reaction in determining the role of sulfate in the environment through its effect on aerosol size distribution and composition. Sulfur isotope analysis has been used to ...

Harris, E.

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Sorption, Dilation, and Partial Molar Volumes of Carbon Dioxide and Ethane in Cross-Linked Poly(ethylene oxide)  

Science Journals Connector (OSTI)

First, carbon dioxide is a common impurity in natural gas that must be removed for heating value improvement. ... A database of PMV values for these two gases in liquids and rubbery polymers was constructed, and a correlation between PMV and solubility parameter was observed, so the chemical structure of the polymer can influence the PMV of the sorbed gas. ... Cylinders of ethane (99% purity) and carbon dioxide (99.999% purity) were purchased from Airgas Southwest Inc. (Corpus Christi, TX). ...

Cláudio P. Ribeiro, Jr.; Benny D. Freeman

2008-11-07T23:59:59.000Z

62

Communication: CO oxidation by silver and gold cluster cations: Identification of different active oxygen species  

SciTech Connect (OSTI)

The oxidation of carbon monoxide with nitrous oxide on mass-selected Au{sub 3}{sup +} and Ag{sub 3}{sup +} clusters has been investigated under multicollision conditions in an octopole ion trap experiment. The comparative study reveals that for both gold and silver cations carbon dioxide is formed on the clusters. However, whereas in the case of Au{sub 3}{sup +} the cluster itself acts as reactive species that facilitates the formation of CO{sub 2} from N{sub 2}O and CO, for silver the oxidized clusters Ag{sub 3}O{sub x}{sup +} (n= 1-3) are identified as active in the CO oxidation reaction. Thus, in the case of the silver cluster cations N{sub 2}O is dissociated and one oxygen atom is suggested to directly react with CO, whereas a second kind of oxygen strongly bound to silver is acting as a substrate for the reaction.

Popolan, Denisia M.; Bernhardt, Thorsten M. [Institute of Surface Chemistry and Catalysis, University of Ulm, Albert-Einstein-Allee 47, 89069 Ulm (Germany)

2011-03-07T23:59:59.000Z

63

The Future of Precipitation: Global and Regional Isidoro Orlanski  

E-Print Network [OSTI]

destruction of ozone by chlorine; (1985) Farman et al: ozone hole Carbon dioxide methane Nitrous oxide CFCs

64

Bisphosphine dioxides  

DOE Patents [OSTI]

A process is described for the production of organic bisphosphine dioxides from organic bisphosphonates. The organic bisphosphonate is reacted with a Grignard reagent to give relatively high yields of the organic bisphosphine dioxide.

Moloy, K.G.

1990-02-20T23:59:59.000Z

65

BASIC ENGINEERING RESEARCH FOR D&D OF R REACTOR STORAGE POND SLUDGE: ELECTROKINETICS, CARBON DIOXIDE EXTRACTION, AND SUPERCRITICAL WATER OXIDATION  

SciTech Connect (OSTI)

Large quantities of mixed low level waste (MLLW) that fall under the Toxic Substances Control Act (TSCA) exist and will continue to be generated during D&D operations at DOE sites across the country. Currently, the volume of these wastes is approximately 23,500 m3, and the majority of these wastes (i.e., almost 19,000 m3) consist of PCBs and PCB-contaminated materials. Further, additional PCB-contaminated waste will be generated during D&D operations in the future. The standard process for destruction of this waste is incineration, which generates secondary waste that must be disposed, and the TSCA incinerator at Oak Ridge has an uncertain future. Beyond incineration, no proposed process for the recovery and/or destruction of these persistent pollutants has emerged as the preferred choice for DOE cleanup. The main objective of the project was to investigate and develop a deeper understanding of the thermodynamic and kinetic reactions involved in the extraction and destruction of polychlorinated biphenyls (PCBs) from low-level mixed waste solid matrices in order to provide data that would permit the design of a combined-cycle extraction/destruction process. The specific research objectives were to investigate benign dense-fluid extraction with either carbon dioxide (USC) or hot water (CU), followed by destruction of the extracted PCBs via either electrochemical (USC) or hydrothermal (CU) oxidation. Two key advantages of the process are that it isolates and concentrates the PCBs from the solid matrices (thereby reducing waste volume greatly and removing the remaining low-level mixed waste from TSCA control), and little, if any, secondary solvent or solid wastes are generated. This project was a collaborative effort involving the University of South Carolina (USC), Clemson University (CU), and Westinghouse Savannah River Company (WSRC) (including the Savannah River Technology Center, Facilities Decommissioning Division and Regulatory Compliance). T he project was directed and coordinated by the South Carolina Universities Research and Education Foundation (SCUREF), a consortium of the four public research universities in South Carolina. The original plan was to investigate two PCB extraction processes (supercritical carbon dioxide and hot, pressurized water) and two PCB destruction processes (electrochemical oxidation and hydrothermal oxidation). However, at approximately the mid-point of the three year project, it was decided to focus on the more promising extraction process (supercritical carbon dioxide) and the more promising destruction process (supercritical water oxidation). This decision was taken because the investigation of two processes simultaneously by each university was stretching resources too thin, and because the electrochemical oxidation process needed more concentrated research before it would be ready for application to PCB destruction. The solid matrix chosen for experimental work was Toxi-dry, a commonly used adsorbent made from plant material that is used in cleanup of spills and/or liquid solvents. The Toxi-dry was supplied by the research team member from the Facilities Decommissioning Division, WSRC. This adsorbent is a major component of job control waste.

Matthews, Michael A.; Bruce,David; Davis,Thomas; Thies, Mark; Weidner, John; White, Ralph

2001-12-31T23:59:59.000Z

66

UV-vis spectroscopy of iodine adsorbed on alkali-metal-modified zeolite catalysts for addition of carbon dioxide to ethylene oxide  

SciTech Connect (OSTI)

The basicity of alkali-metal-exchange (Na, K, Cs) zeolites X and Y was probed by UV-vis diffuse reflectance spectroscopy of adsorbed iodine. The observed blue shift in the visible absorption spectrum of adsorbed iodine, compared to gaseous iodine, correlated well with the negative charge on the framework oxygen atoms calculated from the Sanderson electronegativity equalization principle. The blue shifts associated with iodine adsorbed on classical catalytic supports like silica, alumina, and magnesia suggest that the iodine adsorption technique for probing basicity is applicable to a wide variety of solids. Iodine was also adsorbed on X and Y zeolites containing occluded cesium oxide formed by decomposition of impregnated cesium acetate. However, the iodine appeared to irreversibly react on these strongly basic samples, possibly forming an adsorbed triiodide ions. As a complement to the adsorption studies, the activity of alkali-metal-containing zeolites for the base-catalyzed formation of ethylene carbonate from ethylene oxide and carbon dioxide was investigated. Among the ion-exchanged zeolites, the cesium form of zeolite X exhibited the highest activity for ethylene carbonate formation. The catalytic activity of a zeolite containing occluded cesium was even higher than that of a cesium-exchanged zeolite. The presence of water adsorbed in zeolite pores promoted the rate of ethylene carbonate formation for both cesium-exchanged and cesium-impregnated zeolite X.

Doskocil, E.J.; Bordawekar, S.V.; Kaye, B.G.; Davis, R.J. [Univ. of Virginia, Charlottesville, VA (United States). Dept. of Chemical Engineering] [Univ. of Virginia, Charlottesville, VA (United States). Dept. of Chemical Engineering

1999-07-29T23:59:59.000Z

67

6/4/2013 Page 1 of 12 Nitrogen Dioxide SOP Standard Operating Procedures  

E-Print Network [OSTI]

6/4/2013 Page 1 of 12 Nitrogen Dioxide SOP Standard Operating Procedures Nitrogen Dioxide and Nitric Oxide Print a copy and insert into your laboratory the precautions and safe handling procedures for the use of Nitrogen Dioxide

Cohen, Ronald C.

68

A kinetic and adsorption study of CO oxidation over unsupported fine gold powder and over gold supported on titanium dioxide  

SciTech Connect (OSTI)

The catalytic oxidation of CO with O{sub 2} and adsorption of CO{sub 2} and O{sub 2} on Au deposited on TiO{sub 2} (AuTiO{sub 2}, mean diameter of gold particles 3.5 nm), TiO{sub 2}, and unsupported Au powder (mean diameter 76 nm) have been investigated by using a closed recirculation reaction system. The catalytic oxidation of CO with O{sub 2} on Au/TiO{sub 2} measured at 253--293 K proceeded very rapidly. In the same temperature range, fine gold powder was catalytically active, while TiO{sub 2} alone was entirely inactive for the oxidation. The rate constant of CO oxidation per unit of surface area of gold was larger by two orders of magnitude for Au/TiO{sub 2} than for Au powder. Adsorption of CO and CO{sub 2} occurred almost instantaneously and reversibly on preoxidized Au/TiO{sub 2}, whereas a slow increase in the O{sub 2} pressure was observed at 273 K in the absence of evacuation. A similar increase of O{sub 2} pressure was observed from oxidized TiO{sub 2}, but Au powder did not show any increase. The increase was ascribed to the desorption of weakly adsorbed O{sub 2} on the support surface of Au/TiO{sub 2}. The rate of reduction of preoxidized Au/TiO{sub 2} with CO almost corresponded to the increase in the O{sub 2} pressure and was far smaller than the rate of the catalytic oxidation of CO with O{sub 2} on the catalyst, indicating that molecular oxygen weakly adsorbed on the support surface of Au/TiO{sub 2} contributes only partly to the catalytic oxidation of CO. During the oxidation, O{sub 2} in the gas phase may be directly activated on the surface of deposited gold particles and/or on the very narrow perimeter interface between the gold and the support.

Iizuka, Yasuo; Tode, Toshihisa; Takao, Toshiaki; Yatsu, Kenichiro; Takeuchi, Toshiaki; Tsubota, Susumu; Haruta, Masatake

1999-10-01T23:59:59.000Z

69

Personal and Ambient Air Pollution is Associated with Increased Exhaled Nitric Oxide in Children with Asthma  

E-Print Network [OSTI]

1994. Nitric oxide and nitrogen dioxide: Method 6014. In:Molecular mechanisms of nitrogen dioxide induced epithelialEC, OC), and 24-hr nitrogen dioxide. Ambient exposures

2006-01-01T23:59:59.000Z

70

Low Temperature Deposition of Metal Oxide Thin Films in Supercritical Carbon Dioxide using Metal-organic Precursors  

E-Print Network [OSTI]

and are driven by the energy provided by a heated substrate. Both these vacuum-based techniques require in the precursor adsorption, oxidation and by-product desorption. [5] Use of solvation energy may provide a viable. Pressurized CO2 was delivered using an ISCO 260D syringe pump through a high- pressure manifold. Resistive

Gougousi, Theodosia

71

Availability of Nitrous Nitrogen to Plants.  

E-Print Network [OSTI]

V, .=DL ULL LI~C a~ailability 01 ILILKLL~: IIILIU~~I~ LU curn, l~aa, 8011 31LY3 1 27.3 .53 .I447 1 I 1 5: 1250 .I349 ic nitrogen ( 37.P' 1 -59 1 .2195 ru.. nv / 36.6 .57 1 .2086 I -2141 1 .O7b/ I 1. gm. nitrous nitrogen 30.2 1 .64 1 .I933 1... .12 -.01 ' .09 V1 -- I w 01 ---- I ------ el M - 1 --O6 X * ---- ------ U1 $ !z - --- i d $ --- - I -20 2 Y * F - I M 4 M .34 I --- .20 M .14 5 nitrogen --- --- -.02 .14 -.48 -.01 -12 .18 .OS...

Fraps, G. S. (George Stronach); Sterges, A. J.

1935-01-01T23:59:59.000Z

72

Three Dimensional CFD Model of a Planar Solid Oxide Electrolysis Cell for Co-Electrolysis of Steam and Carbon-Dioxide  

SciTech Connect (OSTI)

A three-dimensional computational fluid dynamics (CFD) model has been created to model high temperature co-electrolysis of steam and carbon dioxide in a planar solid oxide electrolyzer (SOE). A research program is under way at the Idaho National Laboratory (INL) to simultaneously address the research and scale-up issues associated with the implementation of planar solid-oxide electrolysis cell technology for syn-gas production from CO2 and steam. Various runs have been performed under different run conditions to help assess the performance of the SOE. An experimental study is also being performed at the INL to assess the SOE. Model results provide detailed profiles of temperature, Nernst potential, operating potential, anode-side gas composition, cathode-side gas composition, current density and syn-gas production over a range of stack operating conditions. Typical results of current density versus cell potential, cell current versus H2 and CO production, temperature, and voltage potential are all presented within this paper. Plots of mole fraction of CO2, CO, H2, H2O, O2, are presented. Currently there is strong interest in the large-scale production of syn-gas from CO2 and steam to be reformed into a usable transportation fuel. This process takes the carbon-neutral approach where the amount of CO2 in the atmosphere does not increase. Consequently, there is a high level of interest in production of syn-gas from CO2 and steam electrolysis. Worldwide, the demand for light hydrocarbon fuels like gasoline and diesel oil is increasing. To satisfy this demand, oil companies have begun to utilize oil deposits of lower hydrogen. In the mean time, with the price of oil currently over $70 / barrel, synthetically-derived hydrocarbon fuels (synfuels) have become economical. Synfuels are typically produced from syngas – hydrogen (H2) and carbon monoxide (CO) -- using the Fischer-Tropsch process, discovered by Germany before World War II. South Africa has used synfuels to power a significant number of their buses, trucks, and taxicabs. The Idaho National Laboratory (INL), in conjunction with Ceramatec Inc. (Salt Lake City, USA) has been researching for several years the use of solid-oxide fuel cell technology to electrolyze steam for large-scale nuclear-powered hydrogen production. Now, an experimental research project is underway at the INL to investigate the feasibility of producing syngas by simultaneously electrolyzing at high-temperature steam and carbon dioxide (CO2) using solid oxide fuel cell technology. High-temperature nuclear reactors have the potential for substantially increasing the efficiency of syn-gas production from CO2 and water, with no consumption of fossil fuels, and no production of greenhouse gases. Thermal CO2-splitting and water splitting for syn-gas production can be accomplished via high-temperature electrolysis or thermochemical processes, using high-temperature nuclear process heat. In order to achieve competitive efficiencies, both processes require high-temperature operation (~850°C). High-temperature electrolytic CO2 and water splitting supported by nuclear process heat and electricity has the potential to produce syn-gas with an overall system efficiency near those of the thermochemical processes. Specifically, a high-temperature advanced nuclear reactor coupled with a high-efficiency high-temperature electrolyzer could achieve a competitive thermal-to-syn-gas conversion efficiency of 45 to

G. Hawkes; J. O'Brien; C. Stoots; S. Herring; R. Jones

2006-11-01T23:59:59.000Z

73

Basic Engineering Research for D and D of R Reactor Storage Pond Sludge: Electrokinetics, Carbon Dioxide Extraction, and Supercritical Water Oxidation  

SciTech Connect (OSTI)

Large quantities of mixed low level waste (MLLW) that fall under the Toxic Substances Control Act (TSCA) exist and will continue to be generated during D and D operations at DOE sites across the country. The standard process for destruction of MLLW is incineration, which has an uncertain future. The extraction and destruction of PCBs from MLLW was the subject of this research Supercritical Fluid Extraction (SFE) with carbon dioxide with 5% ethanol as cosolvent and Supercritical Waster Oxidation (SCWO) were the processes studied in depth. The solid matrix for experimental extraction studies was Toxi-dry, a commonly used absorbent made from plant material. PCB surrogates were 1.2,4-trichlorobenzene (TCB) and 2-chlorobiphenyl (2CBP). Extraction pressures of 2,000 and 4,000 psi and temperatures of 40 and 80 C were studied. Higher extraction efficiencies were observed with cosolvent and at high temperature, but pressure little effect. SCWO treatment of the treatment of the PCB surrogates resulted in their destruction below detection limits.

Michael A. Matthews; David A. Bruce,; Thomas A. Davis; Mark C. Thies; John W. Weidner; Ralph E. White

2002-04-01T23:59:59.000Z

74

Basic Engineering Research for D&D of R. Reactor Storage Pond Sludge: Electrokinetics, Carbon Dioxide Extraction, and Supercritical Water Oxidation  

SciTech Connect (OSTI)

Collaborating researchers at the University of South Carolina (USC), Clemson University (CU), and the Savannah River Site (SRS) are investigating the fundamentals of a combined extraction and destruction process for the decontamination and decommissioning (D&D) of PCB-contaminated materials as found at DOE sites. Currently, the volume of PCBs and PCB contaminated wastes at DOE sites nationwide is approximately 19,000 m3. While there are a number of existing and proposed processes for the recovery and/or destruction of these persistent 4 pollutants, none has emerged as the preferred choice. Therefore, this research focuses on combining novel processes to solve the problem. The research objectives are to investigate benign dense-fluid extraction with either carbon dioxide (USC) or hot water (CU), followed by destruction of the extracted PCBs via either electrochemical (USC) or hydrothermal (CU) oxidation. Based on the results of these investigations, a combined extraction and destruction process that incorporates the most successful elements of the various processes will be recommended for application to contaminated DOE sites.

Hamilton, Edward A.; Bruce, David A.; Oji, Lawrence; White, Ralph E.; Matthews, Michael A.; Thies, Mark C.

1999-06-01T23:59:59.000Z

75

COMBUSTION SOURCES OF UNREGULATED GAS PHASE NITROGENEOUS SPECIES  

E-Print Network [OSTI]

OXIDES OF NITROGEN Nitrogen Dioxide (N0 2) Nitrous Oxide (NFigure 7. Emissions of nitrogen dioxide from gas turbines (by AiResearch(8)) . Nitrogen dioxide emissions from a

Matthews, Ronald D.

2013-01-01T23:59:59.000Z

76

Glutamate Surface Speciation on Amorphous Titanium Dioxide and  

E-Print Network [OSTI]

Glutamate Surface Speciation on Amorphous Titanium Dioxide and Hydrous Ferric Oxide D I M I T R I (HFO) and titanium dioxide exhibit similar strong attachment of many adsorbates including biomolecules on amorphous titanium dioxide. The results indicate that glutamate adsorbs on HFO as a deprotonated divalent

Sverjensky, Dimitri A.

77

Nitrous Oxide Production in the Gulf of Mexico Hypoxic Zone  

E-Print Network [OSTI]

% of the annual freshwater discharge, 98.5% of the annual nitrogen load, and 98% of the annual phosphorus load into the zone most likely to influence hypoxia (Rabalais et al. 2007). Ecosystem responses to hypoxia include diminished biodiversity and altered...

Visser, Lindsey A.

2010-10-12T23:59:59.000Z

78

AT A GLANCE Title: Hydrogen, Methane and Nitrous oxide: Trend  

E-Print Network [OSTI]

to increases in atmospheric molecular hydrogen (H2) and reductions of fossil fuel burning emissions burning emissions have been calculated with one of the models. MAIN RESULTS Improved methane emissions (from ruminants and waste) is larger. First robust estimates of the uptake of hydrogen by

Haak, Hein

79

Nitrous oxide emission from denitrification in stream and river networks  

Science Journals Connector (OSTI)

...82071; e Environmental Sciences Division, Oak Ridge National Laboratory , Oak Ridge, TN 37831; f Department of Ecology and Evolutionary Biology...experiments on their lands. We also acknowledge the many workers who helped with the Lotic Intersite Nitrogen experiments...

Jake J. Beaulieu; Jennifer L. Tank; Stephen K. Hamilton; Wilfred M. Wollheim; Robert O. Hall; Jr.; Patrick J. Mulholland; Bruce J. Peterson; Linda R. Ashkenas; Lee W. Cooper; Clifford N. Dahm; Walter K. Dodds; Nancy B. Grimm; Sherri L. Johnson; William H. McDowell; Geoffrey C. Poole; H. Maurice Valett; Clay P. Arango; Melody J. Bernot; Amy J. Burgin; Chelsea L. Crenshaw; Ashley M. Helton; Laura T. Johnson; Jonathan M. O'Brien; Jody D. Potter; Richard W. Sheibley; Daniel J. Sobota; Suzanne M. Thomas

2011-01-01T23:59:59.000Z

80

Decomposition of nitrous oxide on AlFe-PILC catalyst  

Science Journals Connector (OSTI)

Two AlFe-PILC catalysts were prepared with different OH/metal...2O) decomposition reactions. The 100% conversion of N2O with NH3into N2and H2O was achieved below 500oC with both applied catalysts. However, the ac...

Ern? E. Kiss; Tatjana J Vuli?…

2005-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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.


81

UK emissions of the greenhouse gas nitrous oxide  

Science Journals Connector (OSTI)

...other land use, (v) waste, and (vi) other sources...forestry (LULUCF) and waste are similarly proportioned...8 per cent and manure storage systems for 6 per cent...is reported here from long-term monitoring of greenhouse...are still not enough long-term datasets to provide the...

2012-01-01T23:59:59.000Z

82

Methane and nitrous oxide in the ice core record  

Science Journals Connector (OSTI)

...observed changes would lead to other feedbacks in atmospheric chemistry, which need to be included in future coupled Earth system models. The pre-industrial Holocene also shows interesting and significant changes, and a debate still exists about...

2007-01-01T23:59:59.000Z

83

UK emissions of the greenhouse gas nitrous oxide  

Science Journals Connector (OSTI)

...ranges from 33 to 170 per cent for fuel combustion processes and 195 per cent for other combustion processes (annex 7 of MacCarthy et al. [11...manure storage and N fertilizers. Combustion processes are the main source of NO x and microbial...

2012-01-01T23:59:59.000Z

84

Technology Innovations and Experience Curves for Nitrogen Oxides Control Technologies  

E-Print Network [OSTI]

red power plants. Nitrogen dioxide (NO 2 ) is one of the sixeffects, including nitrogen dioxide (NO 2 ) and ground-levelgradually oxidized to nitrogen dioxide (NO 2 ) once emitted

Yeh, Sonia; Rubin, Edward S.; Taylor, Margaret R.

2007-01-01T23:59:59.000Z

85

Nitrogen dioxide detection  

DOE Patents [OSTI]

Method and apparatus for detecting the presence of gaseous nitrogen dioxide and determining the amount of gas which is present. Though polystyrene is normally an insulator, it becomes electrically conductive in the presence of nitrogen dioxide. Conductance or resistance of a polystyrene sensing element is related to the concentration of nitrogen dioxide at the sensing element.

Sinha, Dipen N. (Los Alamos, NM); Agnew, Stephen F. (Los Alamos, NM); Christensen, William H. (Buena Park, CA)

1993-01-01T23:59:59.000Z

86

DISSOLUTION OF NEPTUNIUM OXIDE RESIDUES  

SciTech Connect (OSTI)

This report describes the development of a dissolution flowsheet for neptunium (Np) oxide (NpO{sub 2}) residues (i.e., various NpO{sub 2} sources, HB-Line glovebox sweepings, and Savannah River National Laboratory (SRNL) thermogravimetric analysis samples). Samples of each type of materials proposed for processing were dissolved in a closed laboratory apparatus and the rate and total quantity of off-gas were measured. Samples of the off-gas were also analyzed. The quantity and type of solids remaining (when visible) were determined after post-dissolution filtration of the solution. Recommended conditions for dissolution of the NpO{sub 2} residues are: Solution Matrix and Loading: {approx}50 g Np/L (750 g Np in 15 L of dissolver solution), using 8 M nitric acid (HNO{sub 3}), 0.025 M potassium fluoride (KF) at greater than 100 C for at least 3 hours. Off-gas: Analysis of the off-gas indicated nitric oxide (NO), nitrogen dioxide (NO{sub 2}) and nitrous oxide (N{sub 2}O) as the only identified components. No hydrogen (H{sub 2}) was detected. The molar ratio of off-gas produced per mole of Np dissolved ranged from 0.25 to 0.4 moles of gas per mole of Np dissolved. A peak off-gas rate of {approx}0.1 scfm/kg bulk oxide was observed. Residual Solids: Pure NpO{sub 2} dissolved with little or no residue with the proposed flowsheet but the NpCo and both sweepings samples left visible solid residue after dissolution. For the NpCo and Part II Sweepings samples the residue amounted to {approx}1% of the initial material, but for the Part I Sweepings sample, the residue amounted to {approx}8 % of the initial material. These residues contained primarily aluminum (Al) and silicon (Si) compounds that did not completely dissolve under the flowsheet conditions. The residues from both sweepings samples contained minor amounts of plutonium (Pu) particles. Overall, the undissolved Np and Pu particles in the residues were a very small fraction of the total solids.

Kyser, E

2009-01-12T23:59:59.000Z

87

Viscosity of tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

88

Carbon dioxide capture process with regenerable sorbents  

DOE Patents [OSTI]

A process to remove carbon dioxide from a gas stream using a cross-flow, or a moving-bed reactor. In the reactor the gas contacts an active material that is an alkali-metal compound, such as an alkali-metal carbonate, alkali-metal oxide, or alkali-metal hydroxide; or in the alternative, an alkaline-earth metal compound, such as an alkaline-earth metal carbonate, alkaline-earth metal oxide, or alkaline-earth metal hydroxide. The active material can be used by itself or supported on a substrate of carbon, alumina, silica, titania or aluminosilicate. When the active material is an alkali-metal compound, the carbon-dioxide reacts with the metal compound to generate bicarbonate. When the active material is an alkaline-earth metal, the carbon dioxide reacts with the metal compound to generate carbonate. Spent sorbent containing the bicarbonate or carbonate is moved to a second reactor where it is heated or treated with a reducing agent such as, natural gas, methane, carbon monoxide hydrogen, or a synthesis gas comprising of a combination of carbon monoxide and hydrogen. The heat or reducing agent releases carbon dioxide gas and regenerates the active material for use as the sorbent material in the first reactor. New sorbent may be added to the regenerated sorbent prior to subsequent passes in the carbon dioxide removal reactor.

Pennline, Henry W. (Bethel Park, PA); Hoffman, James S. (Library, PA)

2002-05-14T23:59:59.000Z

89

Standard specification for uranium oxides with a 235U content of less than 5 % for dissolution prior to conversion to nuclear-grade uranium dioxide  

E-Print Network [OSTI]

1.1 This specification covers uranium oxides, including processed byproducts or scrap material (powder, pellets, or pieces), that are intended for dissolution into uranyl nitrate solution meeting the requirements of Specification C788 prior to conversion into nuclear grade UO2 powder with a 235U content of less than 5 %. This specification defines the impurity and uranium isotope limits for such urania powders that are to be dissolved prior to processing to nuclear grade UO2 as defined in Specification C753. 1.2 This specification provides the nuclear industry with a general standard for such uranium oxide powders. It recognizes the diversity of conversion processes and the processes to which such powders are subsequently to be subjected (for instance, by solvent extraction). It is therefore anticipated that it may be necessary to include supplementary specification limits by agreement between the buyer and seller. 1.3 The scope of this specification does not comprehensively cover all provisions for prevent...

American Society for Testing and Materials. Philadelphia

2005-01-01T23:59:59.000Z

90

Intrasphere and extrasphere effects of the influence of ammine complexes of transition metals on their catalytic activity in reactions of oxidation of manganese sulfate to the dioxide by atmospheric oxygen  

SciTech Connect (OSTI)

Manganese(II) sulfate is a waste product from the large-tonnage redox process for production of anthraquinone from aniline. Recovery of the original manganese dioxide and removal of manganese(II) sulfate from the wastewaters are economically and ecologically necessary. Liquid-phase low-temperature conversion of manganese(II) sulfate by the action of atmospheric oxygen blown through an aqueous solution of the salt containing ammine complexes of transition metals was studied earlier. It was shown that it does not depend only on intrasphere cations or extrasphere anions; it may be influenced by the effects of their interactions. The purpose of the present work was to study this influence in a complete factorial experiment of the CFE-3T type. It was found that homogeneous catalysis of oxidation of manganese(II) sulfate by atmospheric oxygen in presence of transition-metal ammines is determined to a considerable extent by the effects of pair interactions between complex-forming cations and extrasphere anions.

Eremeev, A.P.; Veselovskii, P.F.

1986-12-10T23:59:59.000Z

91

What's Next for Vanadium Dioxide?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

How Atomic Vibrations Transform Vanadium Dioxide How Atomic Vibrations Transform Vanadium Dioxide Calculations Confirm Material's Potential for Next-Generation Electronics, Energy...

92

sulfur dioxide emissions | OpenEI  

Open Energy Info (EERE)

sulfur dioxide emissions sulfur dioxide emissions Dataset Summary Description Emissions from energy use in buildings are usually estimated on an annual basis using annual average multipliers. Using annual numbers provides a reasonable estimation of emissions, but it provides no indication of the temporal nature of the emissions. Therefore, there is no way of understanding the impact on emissions from load shifting and peak shaving technologies such as thermal energy storage, on-site renewable energy, and demand control. Source NREL Date Released April 11th, 2011 (3 years ago) Date Updated April 11th, 2011 (3 years ago) Keywords buildings carbon dioxide emissions carbon footprinting CO2 commercial buildings electricity emission factors ERCOT hourly emission factors interconnect nitrogen oxides

93

Titanium dioxide based high temperature carbon monoxide selective sensor  

E-Print Network [OSTI]

Titanium dioxide based high temperature carbon monoxide selective sensor Nancy O. Savagea , Sheikh as a trap for the oxidation products of CO and CH4. Upon oxidation of CO on ALC, carbonate species were detected, whereas the reaction of CH4 produced negligible carbonate species. The insensitivity of the ALC

Dutta, Prabir K.

94

Applicability of Anaerobic Nitrate-Dependent Fe(II) Oxidation to Microbial Enhanced Oil Recovery (MEOR)  

Science Journals Connector (OSTI)

Furthermore, both of the substrates of the NDFO organisms [Fe(II) and nitrate] and the various end products of the metabolism [Fe(III), nitrite, nitric oxide, and nitrous oxide] all have known anti-souring and sulfide-scouring activities. ... A glass wool pad was placed on the bottom of the bead beds to prevent beads from falling into the inlet tubing. ...

Hongbo Zhu; Han K. Carlson; John D. Coates

2013-06-25T23:59:59.000Z

95

Oxidative Reforming of Biodiesel Over Molybdenum (IV) Oxide  

E-Print Network [OSTI]

as potential feedstock in solid oxide fuel cells. Petroleum based fuels become scarcer daily, and biodiesel for use in solid oxide fuel cells. This cutting edge area of research continues to be important as energy prove useful for solid oxide fuel cells. METHODS Commercial molybdenum dioxide was used for all tests

Collins, Gary S.

96

Air Pollution Grant Ideas Possible air pollutants to study: SO2, H2S, NO2, NH3, CO, CO2, O3.  

E-Print Network [OSTI]

. Nitrogen Dioxide: Nitrogen dioxide (NO2) is one of a group of highly reactive gasses known as "oxides://www.gradko.co.uk/ram/ Gradko tubes - http://www.gradko.co.uk/pdf/Nitrogen_Dioxide.pdf Grants and Funding Allegheny County of nitrogen," or "nitrogen oxides (NOx)." Other nitrogen oxides include nitrous acid and nitric acid. While

Short, Daniel

97

CARBON DIOXIDE EMISSION REDUCTION  

E-Print Network [OSTI]

.5 Primary Energy Use and Carbon Dioxide Emissions for Selected US Chemical Subsectors in 1994 ...............................................................................................................16 Table 2.7 1999 Energy Consumption and Specific Energy Consumption (SEC) in the U.S. Cement Efficiency Technologies and Measures in Cement Industry.................22 Table 2.9 Energy Consumption

Delaware, University of

98

Development of non-premixed porous inserted regenerative thermal oxidizer  

Science Journals Connector (OSTI)

In this study, a porous inserted regenerative thermal oxidizer (PRTO) system was developed for a... x emissions and high radiant efficiency. Zirconium dioxide (ZrO2...) ceramic ...

Jun-chun Zhang; Le-ming Cheng; Cheng-hang Zheng…

2013-09-01T23:59:59.000Z

99

NETL: Carbon Dioxide 101 FAQs  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is carbon dioxide? is carbon dioxide? CO2 Dipole Carbon Dioxide Carbon dioxide (chemical name CO2) is a clear gas composed of one atom of carbon (C) and two atoms of oxygen (O). Carbon dioxide is one of many chemical forms of carbon on the Earth. It does not burn, and in standard temperature and pressure conditions it is stable, inert, and non-toxic. Carbon dioxide occurs naturally in small amounts (about 0.04%) in the Earth's atmosphere. The volume of CO2 in the atmosphere is equivalent to one individual in a crowd of 2,500. Carbon dioxide is produced naturally by processes deep within the Earth. This CO2 can be released at the surface by volcanoes or might be trapped in natural underground geologic CO2 deposits, similar to underground deposits of oil and natural gas. As a major greenhouse gas, CO2 helps create and

100

Voluntary Reporting of Greenhouse Gases Program - Electricity Factors  

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

Voluntary Reporting Program > Coefficients Voluntary Reporting Program > Coefficients Voluntary Reporting of Greenhouse Gases Program (Voluntary Reporting of Greenhouse Gases Program Fuel Carbon Dioxide Emission Coefficients) Voluntary Reporting of Greenhouse Gases Program Fuel Emission Coefficients Table 1: Carbon Dioxide Emission Factors for Stationary Combustion Table 2: Carbon Dioxide Emission Factors for Transportation Fuels Table 3: Generic Methane and Nitrous Oxide Emission Factors for Stationary Fuel Combustion Table 4: Specific Methane and Nitrous Oxide Emission Factors for Biogenic Fuel Sources Table 5: Methane and Nitrous Oxide Emissions Factors for Highway Vehicles Table 6: Methane and Nitrous Oxide Emission Factors for Alternative Fuel Vehicles Table 7: Methane and Nitrous Oxide Emission Factors for Non-Highway Mobile Combustion

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

CARBON DIOXIDE FIXATION.  

SciTech Connect (OSTI)

Solar carbon dioxide fixation offers the possibility of a renewable source of chemicals and fuels in the future. Its realization rests on future advances in the efficiency of solar energy collection and development of suitable catalysts for CO{sub 2} conversion. Recent achievements in the efficiency of solar energy conversion and in catalysis suggest that this approach holds a great deal of promise for contributing to future needs for fuels and chemicals.

FUJITA,E.

2000-01-12T23:59:59.000Z

102

Refractive index of tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

103

Dielectric constant of tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

104

The Viscosity of Carbon Dioxide  

Science Journals Connector (OSTI)

26 July 1912 research-article The Viscosity of Carbon Dioxide P. Phillips The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings...

1912-01-01T23:59:59.000Z

105

Photosynthesis and carbon dioxide fixation  

Science Journals Connector (OSTI)

Photosynthesis and carbon dioxide fixation ... Photosynthetic pigments, photosystems, the Calvin cycle, the Hatch-Slack pathway, photorespiration, and photosynthetic yield improvement. ...

Muriel B. Bishop; Carl B. Bishop

1987-01-01T23:59:59.000Z

106

Unexpected nondenitrifier nitrous oxide reductase gene diversity and abundance in soils  

Science Journals Connector (OSTI)

...with a Dionex DX-500 ion chromatograph with an EG40 eluent (methane-sulfonic acid) generator and a CS12A column (13). 7 References...BURPS1106A_2115 YP_001066380 Burkholderia pseudomallei 1106a-HHV NC_009076 BURPS1710b_2255 YP_333650 Burkholderia pseudomallei...

Robert A. Sanford; Darlene D. Wagner; Qingzhong Wu; Joanne C. Chee-Sanford; Sara H. Thomas; Claribel Cruz-García; Gina Rodríguez; Arturo Massol-Deyá; Kishore K. Krishnani; Kirsti M. Ritalahti; Silke Nissen; Konstantinos T. Konstantinidis; Frank E. Löffler

2012-01-01T23:59:59.000Z

107

Nitrous oxide emissions. Topical report, July 1, 1990--June 30, 1993  

SciTech Connect (OSTI)

Published N{sub 2}O emissions data for experimental studies examining large numbers of coals are generally scarce at the pilot-scale fluidized-bed combustion (FBC) level, although some data are available at the laboratory scale. The primary objective of this study was to determine the atmospheric contribution of N{sub 2}O derived from coal combustion. Additionally, the goal was to establish a comprehensive engineering model to assist in the prediction of N{sub 2}O emissions based upon operating and design considerations. To meet the overall objectives of determining the overall contribution of N{sub 2}O derived from FBC and developing an engineering model seven tasks were originally proposed. The objective of each task as originally proposed and finally executed is presented in this topical report. The seven tasks were: (1) literature survey; (2) equipment design and test plan development; (3) experimental techniques; (4) pilot-scale determination of the impacts of coal properties and operating conditions on N{sub 2}O emissions; (5) role of coal char on N{sub 2}O formation and destruction; (6) homogeneous versus heterogeneous reactions; and (7) modeling of N{sub 2}O emissions.

Collings, M.E.; Mann, M.D.

1993-12-01T23:59:59.000Z

108

The potential of mean force of nitrous oxide in a 1,2-dimyristoylphosphatidylcholine lipid bilayer  

E-Print Network [OSTI]

specific binding sites. The penetration bar- rier correlates strongly with the action rate penetration and partitioning between lipid and water is an important step toward elucidating the function of N2O as a general anesthetic. After all, N2O has to penetrate through mem- branes before it reaches

109

Activation of Pd-Ag Catalyst for Selective Hydrogenation of Acetylene via Nitrous Oxide Addition  

Science Journals Connector (OSTI)

Hydrogenation of acetylene in the presence of a large excess of ethylene has been investigated on the Pd-Ag catalyst under 60°C and a space velocity...?1.... It was found that an enhancement in the performance of...

Piyasan Praserthdam; Suphot Phatanasri…

2000-05-01T23:59:59.000Z

110

Quantification of and Controls on Dinitrogen and Nitrous Oxide Fluxes from Terrestrial Ecosystems  

E-Print Network [OSTI]

and lowest in a mixed conifer forest soil from the Blodgettin a northern hardwood-conifer forest. Soil Science Societyfir Yellow pine forest Mixed conifer and hardwood Oak

Yang, Wendy Hui-I

2010-01-01T23:59:59.000Z

111

Biological sources and sinks of nitrous oxide and strategies to mitigate emissions  

Science Journals Connector (OSTI)

...of organic nitrogen (eutrophication...m of the water column...affect the solubility of N2O...with other gases CO2, CH4...to yield nitrogen gas, e.g...laughing gas. Water Atmos. 15...2005 Global nitrogen enrichment...

2012-01-01T23:59:59.000Z

112

On-Board Measurement of Ammonia and Nitrous Oxide Using Feedback...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Resonance and Low Pressure Sampling A first set of results has found that LASAR and VLPS data in the laboratory closely correlate with real-time, in-use measurement of NH3 and NO...

113

Unexpected nondenitrifier nitrous oxide reductase gene diversity and abundance in soils  

Science Journals Connector (OSTI)

...contributors to N2O consumption. Apparently, a large...contributions to N2O consumption will advance understanding...flux models. Fossil fuel combustion, agricultural practices...electron donor, and the vessels were inoculated with...contributing to N 2 O consumption in soils...

Robert A. Sanford; Darlene D. Wagner; Qingzhong Wu; Joanne C. Chee-Sanford; Sara H. Thomas; Claribel Cruz-García; Gina Rodríguez; Arturo Massol-Deyá; Kishore K. Krishnani; Kirsti M. Ritalahti; Silke Nissen; Konstantinos T. Konstantinidis; Frank E. Löffler

2012-01-01T23:59:59.000Z

114

Photolysis of Nitrous Oxide Isotopomers Studied by Time-Dependent Hermite Propagation  

Science Journals Connector (OSTI)

The model agrees with available experimental enrichment factors and stratospheric balloon infrared remote sensing data to within the estimated error. ...

Matthew S. Johnson; Gert Due Billing; Alytis Gruodis; Maurice H. M. Janssen

2001-09-05T23:59:59.000Z

115

Biological sources and sinks of nitrous oxide and strategies to mitigate emissions  

Science Journals Connector (OSTI)

...used to produce biodiesel and bioethanol...replacement of the fossil fuel by biofuel. It...cereals include engineering bacteria to recognize...considered was the introduction of the nitrogenase...It provides an introduction and background...microbiology, (ii) engineering crop plants to...

2012-01-01T23:59:59.000Z

116

Nitrous oxide emissions from soils: how well do we understand the processes and their controls?  

Science Journals Connector (OSTI)

...1365-2486.2010.02351.x ) 56 Birch, HF , Friend, MT. 1956 Humus decomposition...covariance measurements using quantum cascade laser spectrometery over a Swiss forest. Biogeosciences...review of applications of model-data fusion to studies of terrestrial carbon fluxes...

2013-01-01T23:59:59.000Z

117

Process for sequestering carbon dioxide and sulfur dioxide  

DOE Patents [OSTI]

A process for sequestering carbon dioxide, which includes reacting a silicate based material with an acid to form a suspension, and combining the suspension with carbon dioxide to create active carbonation of the silicate-based material, and thereafter producing a metal salt, silica and regenerating the acid in the liquid phase of the suspension.

Maroto-Valer, M. Mercedes (State College, PA); Zhang, Yinzhi (State College, PA); Kuchta, Matthew E. (State College, PA); Andresen, John M. (State College, PA); Fauth, Dan J. (Pittsburgh, PA)

2009-10-20T23:59:59.000Z

118

Carbon dioxide capture and geological storage  

Science Journals Connector (OSTI)

...Blundell and Fraser Armstrong Carbon dioxide capture and geological storage Sam...Nottingham NG12 5GG, UK Carbon dioxide capture and geological storage is a...80-90%. It involves the capture of carbon dioxide at a large industrial...

2007-01-01T23:59:59.000Z

119

Carbon dioxide and climate  

SciTech Connect (OSTI)

Scientific and public interest in greenhouse gases, climate warming, and global change virtually exploded in 1988. The Department's focused research on atmospheric CO{sub 2} contributed sound and timely scientific information to the many questions produced by the groundswell of interest and concern. Research projects summarized in this document provided the data base that made timely responses possible, and the contributions from participating scientists are genuinely appreciated. In the past year, the core CO{sub 2} research has continued to improve the scientific knowledge needed to project future atmospheric CO{sub 2} concentrations, to estimate climate sensitivity, and to assess the responses of vegetation to rising concentrations of CO{sub 2} and to climate change. The Carbon Dioxide Research Program's goal is to develop sound scientific information for policy formulation and governmental action in response to changes of atmospheric CO{sub 2}. The Program Summary describes projects funded by the Carbon Dioxide Research Program during FY 1990 and gives a brief overview of objectives, organization, and accomplishments.

Not Available

1990-10-01T23:59:59.000Z

120

Supercritical fluid carbon dioxide cleaning of plutonium parts  

SciTech Connect (OSTI)

Supercritical fluid carbon dioxide is under investigation in this work for use as a cleaning solvent for the final cleaning of plutonium parts. These parts must be free of organic residue to avoid corrosion in the stockpile. Initial studies on stainless steel and full-scale mock-up parts indicate that the oils of interest are easily and adequately cleaned from the metal surfaces with supercritical fluid carbon dioxide. Results from compatibility studies show that undesirable oxidation or other surface reactions are not occurring during exposure of plutonium to the supercritical fluid. Cleaning studies indicate that the oils of interest are removed from the plutonium surface under relatively mild conditions. These studies indicate that supercritical fluid carbon dioxide is a very promising cleaning medium for this application.

Hale, S.J.

1991-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Computational studies of environmentally-related topics: part I. elucidating mechanisms of rhenium-mediated carbon dioxide conversion : part II. investigating vinyl radical and methyl peroxy radical combustion intermediates.  

E-Print Network [OSTI]

??Combustion processes are a major contributor of pollutants in the atmosphere; they emit particles of soot, and greenhouse gases like carbon dioxide and nitrogen oxides.… (more)

Agarwal, Jay

2013-01-01T23:59:59.000Z

122

Biological and environmental efficiency of high producing dairy systems through application of life cycle analysis   

E-Print Network [OSTI]

Dairy production systems are an important global contributor to anthropogenic greenhouse gas (GHG) emissions including methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2). Due to the role GHG play in climate ...

Ross, Stephen Alexander

2014-11-27T23:59:59.000Z

123

Preliminary GHG Emissions Inventory for the Slovak Republic  

Science Journals Connector (OSTI)

This paper presents preliminary results of a greenhouse gas emissions inventory for the Slovak Republic. The key gases included are carbon dioxide, methane, and nitrous oxide. Chlorofluorocarbons are excluded ...

Katarína Mare?kova; Pavol Bielek; Stanislav Kucirek…

1996-01-01T23:59:59.000Z

124

GHG Emissions from Boreal Reservoirs and Natural Aquatic Ecosystems  

Science Journals Connector (OSTI)

Carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) gross fluxes were measured at the air-water interface of 205 aquatic ecosystems in the Canadian boreal region from 1993 to 2003. Fluxes were obtained wi...

Alain Tremblay; Jean Therrien; Bill Hamlin…

2005-01-01T23:59:59.000Z

125

2006 Federal Energy and Water Management Award Winners | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

in annual energy costs, but will also save 650,000 gallons of diesel fuel and reduce air pollution by 26 tons of sulfur dioxide and 15 tons of nitrous oxide. With the wind...

126

Proceedings of the TAPPI 1986 environmental conference  

SciTech Connect (OSTI)

These proceedings collect papers given at a conference on the environment. Topics include the paper industry; solid electrolytes; combustion products; scrubbers and gaseous wastes including nitrous oxides and sulfur dioxide.

Not Available

1986-01-01T23:59:59.000Z

127

Carbon Dioxide Sequestration Industrial-scale processes are available for separating carbon dioxide from the post-  

E-Print Network [OSTI]

Carbon Dioxide Sequestration Industrial-scale processes are available for separating carbon dioxide dioxide separation and sequestration because the lower cost of carbon dioxide separation from for injection of carbon dioxide into oil or gas-bearing formations. An advantage of sequestration involving

128

Reducing carbon dioxide to products  

DOE Patents [OSTI]

A method reducing carbon dioxide to one or more products may include steps (A) to (C). Step (A) may bubble said carbon dioxide into a solution of an electrolyte and a catalyst in a divided electrochemical cell. The divided electrochemical cell may include an anode in a first cell compartment and a cathode in a second cell compartment. The cathode may reduce said carbon dioxide into said products. Step (B) may adjust one or more of (a) a cathode material, (b) a surface morphology of said cathode, (c) said electrolyte, (d) a manner in which said carbon dioxide is bubbled, (e), a pH level of said solution, and (f) an electrical potential of said divided electrochemical cell, to vary at least one of (i) which of said products is produced and (ii) a faradaic yield of said products. Step (C) may separate said products from said solution.

Cole, Emily Barton; Sivasankar, Narayanappa; Parajuli, Rishi; Keets, Kate A

2014-09-30T23:59:59.000Z

129

decommissioning of carbon dioxide (CO  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

decommissioning of carbon dioxide (CO decommissioning of carbon dioxide (CO 2 ) storage wells. The manual builds on lessons learned through NETL research; the experiences of the Regional Carbon Sequestration Partnerships' (RCSPs) carbon capture, utilization, and storage (CCUS) field tests; and the acquired knowledge of industries that have been actively drilling wells for more than 100 years. In addition, the BPM provides an overview of the well-

130

Recuperative supercritical carbon dioxide cycle  

DOE Patents [OSTI]

A power plant includes a closed loop, supercritical carbon dioxide system (CLS-CO.sub.2 system). The CLS-CO.sub.2 system includes a turbine-generator and a high temperature recuperator (HTR) that is arranged to receive expanded carbon dioxide from the turbine-generator. The HTR includes a plurality of heat exchangers that define respective heat exchange areas. At least two of the heat exchangers have different heat exchange areas.

Sonwane, Chandrashekhar; Sprouse, Kenneth M; Subbaraman, Ganesan; O'Connor, George M; Johnson, Gregory A

2014-11-18T23:59:59.000Z

131

The catalytic oxidation of propylene: investigation of catalyst activity.  

E-Print Network [OSTI]

- thur oxidation resulted in the formation oi' dioxymsthylperoxides acetalde- hydes formic aoids carbon monoxide, carbon dioxide~ hydrogen and water, &t temperatures above 500 degrees Centigrade the polymer1sation of eth- ylene became significant... that water vapor exerted a catalytio effeot on the oxidation of ethylene, while carbon dioxide showed no aooelerating effeot. Davis (ll) observed that water vapor possessed a oatalytio ei'- feet on ths oxidation of olefins. Thompson and Hinshslwood (SS...

Woodham, John Frank

1953-01-01T23:59:59.000Z

132

Supporting Information for Impact of Chlorine Emissions from Sea-Salt Aerosol on Coastal Urban Ozone  

E-Print Network [OSTI]

DIOXIDE H2O2 HYDROGEN PEROXIDE NH3 AMMONIA NIT AEROSOL NITRATE SO2 SULFUR DIOXIDE SO3 SULFUR TRIOXIDE OSD extensions* NO NITRIC OXIDE NO2 NITROGEN DIOXIDE O3 OZONE HONO NITROUS ACID HNO3 NITRIC ACID HNO4 PERNITRIC ACID N2O5 NITROGEN PENTOXIDE NO3 NITRATE RADICAL HO2 HYDROPEROXY RADICAL CO CARBON MONOXIDE CO2 CARBON

Dabdub, Donald

133

Investigation of the Atmospheric Ozone Impacts of Methyl Iodide  

E-Print Network [OSTI]

J. R. Holmes (1977): “Nitrogen Dioxide Photolysis in the LosO3 Ozone NO Nitric Oxide NO2 Nitrogen Dioxide NO3 NitrateNitrogen Pentoxide HONO Nitrous Acid HNO3 Nitric Acid HNO4 Peroxynitric Acid HO2H Hydrogen Peroxide CO Carbon Monoxide SO2 Sulfur Dioxide

Carter, W P L

2007-01-01T23:59:59.000Z

134

Weyburn Carbon Dioxide Sequestration Project  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Weyburn Carbon DioxiDe SequeStration Weyburn Carbon DioxiDe SequeStration ProjeCt Background Since September 2000, carbon dioxide (CO 2 ) has been transported from the Dakota Gasification Plant in North Dakota through a 320-km pipeline and injected into the Weyburn oilfield in Saskatchewan, Canada. The CO 2 has given the Weyburn field, discovered 50 years ago, a new life: 155 million gross barrels of incremental oil are slated to be recovered by 2035 and the field is projected to be able to store 30 million tonnes of CO 2 over 30 years. CO 2 injection began in October of 2005 at the adjacent Midale oilfield, and an additional 45-60 million barrels of oil are expected to be recovered during 30 years of continued operation. A significant monitoring project associated with the Weyburn and Midale commercial

135

Carbon Dioxide: Threat or Opportunity?  

E-Print Network [OSTI]

tion will be by direct combustion for the generation of power, but an increasing proportion will be con verted to syngas for chemical and fuel uses. Coal gasification is projected to become a major industry in the next decade. For every ton of coal... entering the gasification process, 1.88 lons of carbon dio xide are produced. This carbon dioxide is removed in virtually pure form by existing technology. This same technology can be applied to remove carbon dioxide from stack gases produced by power...

McKinney, A. R.

1982-01-01T23:59:59.000Z

136

Capture of carbon dioxide from ambient air  

Science Journals Connector (OSTI)

Carbon dioxide capture from ambient air could compensate for all carbon dioxide emissions to the atmosphere. Such capture would, for example, make it possible to use liquid, carbon-based fuels in cars or airplane...

K.S. Lackner

2009-09-01T23:59:59.000Z

137

Carbon Dioxide and Methane Emissions from Estuaries  

Science Journals Connector (OSTI)

Carbon dioxide and methane emissions from estuaries are reviewed in relation with biogeochemical processes and carbon cycling. In estuaries, carbon dioxide and methane emissions show a large spatial and temporal ...

Gwenaël Abril; Alberto Vieira Borges

2005-01-01T23:59:59.000Z

138

Fuel saving, carbon dioxide emission avoidance, and syngas production by tri-reforming of flue gases from coal- and gas-fired power stations, and by the carbothermic reduction of iron oxide  

Science Journals Connector (OSTI)

Flue gases from coal, gas, or oil-fired power stations, as well as from several heavy industries, such as the production of iron, lime and cement, are major anthropogenic sources of global CO2 emissions. The newly proposed process for syngas production based on the tri-reforming of such flue gases with natural gas could be an important route for CO2 emission avoidance. In addition, by combining the carbothermic reduction of iron oxide with the partial oxidation of the carbon source, an overall thermoneutral process can be designed for the co-production of iron and syngas rich in CO. Water-gas shift (WGS) of CO to H2 enables the production of useful syngas. The reaction process heat, or the conditions for thermoneutrality, are derived by thermochemical equilibrium calculations. The thermodynamic constraints are determined for the production of syngas suitable for methanol, hydrogen, or ammonia synthesis. The environmental and economic consequences are assessed for large-scale commercial production of these chemical commodities. Preliminary evaluations with natural gas, coke, or coal as carbon source indicate that such combined processes should be economically competitive, as well as promising significant fuel saving and CO2 emission avoidance. The production of ammonia in the above processes seems particularly attractive, as it consumes the nitrogen in the flue gases.

M. Halmann; A. Steinfeld

2006-01-01T23:59:59.000Z

139

Transition metal-promoted oxygen ion conductors as oxidation catalyst  

SciTech Connect (OSTI)

A novel metal oxide composite catalyst for the complete oxidation of carbon monoxide and hydrocarbons was prepared by combining oxygen ion conducting materials with active transition metals. The oxygen ion conductors used were typical fluorite-type oxides, such as ceria, zirconia, and others. Active base metal catalysts, such as copper, were used as additives to promote the catalytic properties of oxygen ion conductors. The intimate contact of the two kinds of materials gave rise to a highly active oxidation catalyst. On Cu-Ce-O composite catalysts, 95% of carbon monoxide was oxidized by air at {approximately} 100 C. Complete methane oxidation on the same catalyst took place at {approximately} 550 C. When the stoichiometric amount of sulfur dioxide was sued to oxidize carbon monoxide, 96% of sulfur dioxide was reduced to elemental sulfur at temperatures above 460 C with 99% of sulfur dioxide conversion. This type of composite catalyst also showed excellent resistance to water poisoning.

Liu, W.; Sarofim, A. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Chemical Engineering; Flytzani-Stephanopoulos, M. [Tufts Univ., Medford, MA (United States). Dept. of Chemical Engineering

1994-12-31T23:59:59.000Z

140

Carbon dioxide storage professor Martin Blunt  

E-Print Network [OSTI]

Carbon dioxide storage professor Martin Blunt executive summary Carbon Capture and Storage (CCS) referS to the Set of technologies developed to capture carbon dioxide (Co2) gas from the exhausts of technologies developed to capture carbon dioxide (Co2) gas from the exhausts of power stations and from other

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Sulfur dioxide and nitrogen dioxide levels inside and outside homes and the implications on health effects research  

Science Journals Connector (OSTI)

Sulfur dioxide and nitrogen dioxide levels inside and outside homes and the implications on health effects research ...

John D. Spengler; Benjamin G. Ferris Jr.; Douglas W. Dockery; Frank E. Speizer

1979-10-01T23:59:59.000Z

142

THE NITROGEN OXIDES CONTROVERSY  

E-Print Network [OSTI]

including observed nitrogen dioxide," Pure App. Geophys.HN0 ) and probably nitrogen dioxide (N0 ) at a few parts perorganic molecule and nitrogen dioxide. Several examples

Johnston, Harold S.

2012-01-01T23:59:59.000Z

143

Coking of coal batch with different content of oxidized coal  

Science Journals Connector (OSTI)

The use of oxidized coal in coking batch increases the analytical moisture content and ... increases the oxygen content; reduces the gross coke yield and the yield of tar, benzene ... of carbon dioxide, pyrogenet...

D. V. Miroshnichenko; I. D. Drozdnik; Yu. S. Kaftan; N. B. Bidolenko…

2012-05-01T23:59:59.000Z

144

Interactions of Fluorine Redistribution and Nitrogen Incorporation with Boron Diffusion in Silicon Dioxide  

E-Print Network [OSTI]

Interactions of Fluorine Redistribution and Nitrogen Incorporation with Boron Diffusion in Silicon Dioxide Mitra Navi and Scott Dunham Department of Electrical and Computer Engineering Boston University diffusion. Gate oxides were grown with nitrogen contents varying from 0 to 1.4%. A series of SIMS mea

Dunham, Scott

145

Capturing Carbon Dioxide From Air  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Capturing Carbon Dioxide From Air Capturing Carbon Dioxide From Air Klaus S. Lackner (kl2010@columbia.edu; 212-854-0304) Columbia University 500 West 120th Street New York, NY 10027 Patrick Grimes (pgrimes@worldnet.att.net; 908-232-1134) Grimes Associates Scotch Plains, NJ 07076 Hans-J. Ziock (ziock@lanl.gov; 505-667-7265) Los Alamos National Laboratory P.O.Box 1663 Los Alamos, NM 87544 Abstract The goal of carbon sequestration is to take CO 2 that would otherwise accumulate in the atmosphere and put it in safe and permanent storage. Most proposed methods would capture CO 2 from concentrated sources like power plants. Indeed, on-site capture is the most sensible approach for large sources and initially offers the most cost-effective avenue to sequestration. For distributed, mobile sources like cars, on-board capture at affordable cost would not be

146

Reductive Sequestration of Carbon Dioxide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Reductive Sequestration of Carbon Dioxide Reductive Sequestration of Carbon Dioxide T. Mill (ted.mill@sri.com; 650-859-3605) SRI, PS273 333 Ravenswood Menlo Park, CA 94025 D. Ross (dsross3@yahoo.com; 650-327-3842) U.S. Geological Survey, Bldg 15 MS 999 345 Middlefield Rd. Menlo Park, CA 94025 Introduction The United States currently meets 80% of its energy needs by burning fossil fuels to form CO 2 . The combustion-based production of CO 2 has evolved into a major environmental challenge that extends beyond national borders and the issue has become as politically charged as it is technologically demanding. Whereas CO 2 levels in the atmosphere had remained stable over the 10,000 years preceeding the industrial revolution, that event initiated rapid growth in CO 2 levels over the past 150 years (Stevens, 2000). The resulting accelerating accumulation of

147

IEP - Carbon Dioxide: Regulatory Drivers  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

IEP - Carbon Dioxide (CO2) Regulatory Drivers In July 7, 2009 testimony before the U.S. Senate Committee on Environment and Public Works, Secretary of Energy Steven Chu made the following statements:1 "...Overwhelming scientific evidence shows that carbon dioxide from human activity has increased the atmospheric level of CO2 by roughly 40 percent, a level one- third higher than any time in the last 800,000 years. There is also a consensus that CO2 and other greenhouse gas emissions have caused our planet to change. Already, we have seen the loss of about half of the summer arctic polar ice cap since the 1950s, a dramatically accelerating rise in sea level, and the loss of over two thousand cubic miles of glacial ice, not on geological time scales but over a mere hundred years.

148

Method for Sequestering Carbon Dioxide and Sulfur Dioxide Utilizing a Plurality of Waste Streams  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sequestering Carbon Dioxide and Sulfur Dioxide Sequestering Carbon Dioxide and Sulfur Dioxide Utilizing a Plurality of Waste Streams Opportunity The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing United States Patent Number 7,922,792 entitled "Method for Sequestering Carbon Dioxide and Sulfur Dioxide Utilizing a Plurality of Waste Streams." Disclosed in this patent is the invention of a neutralization/sequestration method that concomitantly treats bauxite residues from aluminum production processes, as well as brine wastewater from oil and gas production processes. The method uses an integrated approach that coincidentally treats multiple industrial waste by-product streams. The end results include neutralizing caustic

149

Chemisorption and anodic oxidation of aromatic molecules on Pd electrode surfaces: studies by UHV-EC-STM  

E-Print Network [OSTI]

yields an edge-vertical oriented diphenolic species. (iii) The extent of anodic oxidation of the chemisorbed organic strongly depends upon its initial orientation; only the flat-adsorbed species are oxidized completely to carbon dioxide. (iv...

Chen, Xiaole

2006-04-12T23:59:59.000Z

150

Dielectric constant of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) pyridine  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

151

Viscosity of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) ethylbenzene  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

152

Dielectric constant of the mixture (1) water; (2) tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

153

Viscosity of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) 1,4-dimethylbenzene  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

154

Viscosity of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) toluene  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

155

Refractive index of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) 1-methylnapthalene  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

156

Viscosity of the mixture (1) 1,3-dioxolane; (2) tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

157

Viscosity of the mixture (1) water; (2) tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

158

Viscosity of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) 1,3-dimethylbenzene  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

159

Viscosity of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) benzene  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

160

Viscosity of the mixture (1) tetrahydrofuran; (2) tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Viscosity of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) 1,2-dimethylbenzene  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2009-01-01T23:59:59.000Z

162

An analysis of the impact of having uranium dioxide mixed in with plutonium dioxide  

SciTech Connect (OSTI)

An assessment was performed to show the impact on airborne release fraction, respirable fraction, dose conversion factor and dose consequences of postulated accidents at the Plutonium Finishing Plant involving uranium dioxide rather than plutonium dioxide.

MARUSICH, R.M.

1998-10-21T23:59:59.000Z

163

Putting the pressure on carbon dioxide | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Putting the pressure on carbon dioxide Improving the chances for fuel recovery and carbon sequestration Artwork from this research graces the cover of Environmental Science...

164

Sandia National Laboratories: reducing carbon dioxide emissions  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

carbon dioxide emissions Measurements of Thermal Stratification in a Homogenous Charge Compression Ignition Engine On February 27, 2013, in CRF, Energy, Facilities, News, News &...

165

Club Convergence in Carbon Dioxide Emissions  

Science Journals Connector (OSTI)

We examine convergence in carbon dioxide emissions among 128 countries for the period 1960–...2 emissions among all the countries under scrutiny in...

Ekaterini Panopoulou; Theologos Pantelidis

2009-09-01T23:59:59.000Z

166

Methanol partial oxidation reformer  

DOE Patents [OSTI]

A partial oxidation reformer comprising a longitudinally extending chamber having a methanol, water and an air inlet and an outlet. An igniter mechanism is near the inlets for igniting a mixture of methanol and air, while a partial oxidation catalyst in the chamber is spaced from the inlets and converts methanol and oxygen to carbon dioxide and hydrogen. Controlling the oxygen to methanol mole ratio provides continuous slightly exothermic partial oxidation reactions of methanol and air producing hydrogen gas. The liquid is preferably injected in droplets having diameters less than 100 micrometers. The reformer is useful in a propulsion system for a vehicle which supplies a hydrogen-containing gas to the negative electrode of a fuel cell.

Ahmed, Shabbir (Bolingbrook, IL); Kumar, Romesh (Naperville, IL); Krumpelt, Michael (Naperville, IL)

1999-01-01T23:59:59.000Z

167

Methanol partial oxidation reformer  

DOE Patents [OSTI]

A partial oxidation reformer comprising a longitudinally extending chamber having a methanol, water and an air inlet and an outlet. An igniter mechanism is near the inlets for igniting a mixture of methanol and air, while a partial oxidation catalyst in the chamber is spaced from the inlets and converts methanol and oxygen to carbon dioxide and hydrogen. Controlling the oxygen to methanol mole ratio provides continuous slightly exothermic partial oxidation reactions of methanol and air producing hydrogen gas. The liquid is preferably injected in droplets having diameters less than 100 micrometers. The reformer is useful in a propulsion system for a vehicle which supplies a hydrogen-containing gas to the negative electrode of a fuel cell.

Ahmed, Shabbir (Bolingbrook, IL); Kumar, Romesh (Naperville, IL); Krumpelt, Michael (Naperville, IL)

2001-01-01T23:59:59.000Z

168

Methanol partial oxidation reformer  

DOE Patents [OSTI]

A partial oxidation reformer is described comprising a longitudinally extending chamber having a methanol, water and an air inlet and an outlet. An igniter mechanism is near the inlets for igniting a mixture of methanol and air, while a partial oxidation catalyst in the chamber is spaced from the inlets and converts methanol and oxygen to carbon dioxide and hydrogen. Controlling the oxygen to methanol mole ratio provides continuous slightly exothermic partial oxidation reactions of methanol and air producing hydrogen gas. The liquid is preferably injected in droplets having diameters less than 100 micrometers. The reformer is useful in a propulsion system for a vehicle which supplies a hydrogen-containing gas to the negative electrode of a fuel cell. 7 figs.

Ahmed, S.; Kumar, R.; Krumpelt, M.

1999-08-17T23:59:59.000Z

169

Methanol partial oxidation reformer  

DOE Patents [OSTI]

A partial oxidation reformer is described comprising a longitudinally extending chamber having a methanol, water and an air inlet and an outlet. An igniter mechanism is near the inlets for igniting a mixture of methanol and air, while a partial oxidation catalyst in the chamber is spaced from the inlets and converts methanol and oxygen to carbon dioxide and hydrogen. Controlling the oxygen to methanol mole ratio provides continuous slightly exothermic partial oxidation reactions of methanol and air producing hydrogen gas. The liquid is preferably injected in droplets having diameters less than 100 micrometers. The reformer is useful in a propulsion system for a vehicle which supplies a hydrogen-containing gas to the negative electrode of a fuel cell. 7 figs.

Ahmed, S.; Kumar, R.; Krumpelt, M.

1999-08-24T23:59:59.000Z

170

Climate Finance 35 Understanding the Causes and  

E-Print Network [OSTI]

change issue is well un- derstood: greenhouse gases (GHG) emitted in the process of electricity #12 arises from long-lived gases (carbon dioxide, methane, halocarbons, and nitrous oxide) because half- century. Carbon dioxide from the combustion of fossil fuels (coal, oil, and natu- ral gas

Oppenheimer, Michael

171

Spatially Differentiated Trade of Permits for Multipollutant Electric Power Supply Chains  

E-Print Network [OSTI]

regulations to control multiple pollutants. The Regional Clean Air Incentives Market (RECLAIM) program). Berlin, Germany: Springer, in press. 1 Introduction Electric power plants emit several different air pollutants, such as carbon dioxide (CO2), sulfur dioxide (SO2), nitrous oxide (NOx), and mercury (Hg

Nagurney, Anna

172

Carbon Dioxide Capture from Coal-Fired  

E-Print Network [OSTI]

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis May 2005 MIT LFEE 2005 are valued using the "real options" valuation methodology in an uncertain carbon dioxide (CO2) price (baseline IGCC), and IGCC with pre-investments that make future retrofit for CO2 capture less expensive (pre

173

Optimize carbon dioxide sequestration, enhance oil recovery  

E-Print Network [OSTI]

- 1 - Optimize carbon dioxide sequestration, enhance oil recovery January 8, 2014 Los Alamos simulation to optimize carbon dioxide (CO2) sequestration and enhance oil recovery (CO2-EOR) based on known production. Due to carbon capture and storage technology advances, prolonged high oil prices

174

Predicting Future Atmospheric Carbon Dioxide Levels  

Science Journals Connector (OSTI)

...Predicting future atmospheric carbon dioxide levels...1978012175 air atmosphere biosphere carbon...Predicting future atmospheric carbon dioxide levels...re-quired 5-Mhz bandwidth, which...synchronization rate of 16 khz and the picture...the interstellar plasma. For UHF frequencies...

U. Siegenthaler; H. Oeschger

1978-01-27T23:59:59.000Z

175

Haverford Researchers Create Carbon Dioxide-Separating Polymer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Haverford College Researchers Create Carbon Dioxide-Separating Polymer Haverford College Researchers Create Carbon Dioxide-Separating Polymer August 1, 2012 | Tags: Basic Energy...

176

Table 2. 2011 State energy-related carbon dioxide emisssions...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

2011 State energy-related carbon dioxide emissions by fuel million metric tons of carbon dioxide shares State Coal Petroleum Natural Gas Total Coal Petroleum Natural Gas Alabama...

177

carbon dioxide emissions | OpenEI  

Open Energy Info (EERE)

dioxide emissions dioxide emissions Dataset Summary Description Total annual carbon dioxide emissions by country, 2005 to 2009 (million metric tons). Compiled by Energy Information Administration (EIA). Source EIA Date Released Unknown Date Updated Unknown Keywords carbon dioxide emissions EIA world Data text/csv icon total_carbon_dioxide_emissions_from_the_consumption_of_energy_2005_2009million_metric_tons.csv (csv, 12.3 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Time Period 2005 - 2009 License License Other or unspecified, see optional comment below Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating

178

EIA - Greenhouse Gas Emissions - Carbon Dioxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

2. Carbon Dioxide Emissions 2. Carbon Dioxide Emissions 2.1. Total carbon dioxide emissions Annual U.S. carbon dioxide emissions fell by 419 million metric tons in 2009 (7.1 percent), to 5,447 million metric tons (Figure 9 and Table 6). The annual decrease-the largest over the 19-year period beginning with the 1990 baseline-puts 2009 emissions 608 million metric tons below the 2005 level, which is the Obama Administration's benchmark year for its goal of reducing U.S. emissions by 17 percent by 2020. The key factors contributing to the decrease in carbon dioxide emissions in 2009 included an economy in recession with a decrease in gross domestic product of 2.6 percent, a decrease in the energy intensity of the economy of 2.2 percent, and a decrease in the carbon intensity of energy supply of

179

Global metaanalysis of the nonlinear response of soil nitrous oxide (N2O) emissions to fertilizer nitrogen  

Science Journals Connector (OSTI)

...programs, the US Department of Energy Office of Science (Grant DE-FCO2-07ER64494) and Office of Energy Efficiency and Renewable Energy (Grant DE-ACO5-76RL01830...Tsukuba 36°02 N 140°12 E 12 Brazil Capivari, San Paolo 22°93...

Iurii Shcherbak; Neville Millar; G. Philip Robertson

2014-01-01T23:59:59.000Z

180

Global metaanalysis of the nonlinear response of soil nitrous oxide (N2O) emissions to fertilizer nitrogen  

Science Journals Connector (OSTI)

...selected field studies from the literature where in situ measurements of...and in studies identified in reviews by Bouwman (8), Jungkunst...Dataset S1) when available: literature reference; location...fertilizer. Glob Change Biol Bioenergy 16(1):156 ZZQQhy170...

Iurii Shcherbak; Neville Millar; G. Philip Robertson

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Association of Earthworm-Denitrifier Interactions with Increased Emission of Nitrous Oxide from Soil Mesocosms Amended with Crop Residue  

Science Journals Connector (OSTI)

...mug C kg1, and total mineral N content (extraction...respectively. We used a soda-lime filter during N2O measurements...within 48 h of sampling. Mineral N was extracted using...were also ball milled. Mineral N and MBN was converted...Netherlands) with a SYBR green detection system. Each...

Lucas D. Nebert; Jaap Bloem; Ingrid M. Lubbers; Jan Willem van Groenigen

2011-04-22T23:59:59.000Z

182

Nitrous oxide as a substitute for sulfur hexafluoride in the ANSI/ASHRAE 110 Method of hood performance evaluation .  

E-Print Network [OSTI]

??The ANSI/ASHRAE 110 Method is the standard test for laboratory hood containment performance. Sulfur hexafluoride is specified as the gas most suitable for this test… (more)

Guffey, Eric J. (Eric Jemison)

2011-01-01T23:59:59.000Z

183

A post-Kyoto partner: Considering the stratospheric ozone regime as a tool to manage nitrous oxide  

Science Journals Connector (OSTI)

...There is a balance between ozone production...because the mass of N 2 O...such as wastewater, are developing...such as wastewater treatment and aquaculture...coal power plants) emit N...how to balance funding...nitric acid plants in the United...

David Kanter; Denise L. Mauzerall; A. R. Ravishankara; John S. Daniel; Robert W. Portmann; Peter M. Grabiel; William R. Moomaw; James N. Galloway

2013-01-01T23:59:59.000Z

184

Biodegradation of monoaromatic hydrocarbons by aquifer microorganisms using oxygen, nitrate, or nitrous oxide as the terminal electron acceptor.  

Science Journals Connector (OSTI)

...I. Mayfield. 1986. Remediation of gasoline-contaminated...Aerobic denitrification as an innovative method for in-situ biological remediation of contaminated sub- surface...underground storage tanks: remediation with emphasis on in situ...

S R Hutchins

1991-08-01T23:59:59.000Z

185

Nitrous oxide as a substitute for sulfur hexafluoride in the ANSI/ASHRAE 110 Method of hood performance evaluation  

E-Print Network [OSTI]

The ANSI/ASHRAE 110 Method is the standard test for laboratory hood containment performance. Sulfur hexafluoride is specified as the gas most suitable for this test and is most commonly used. Sulfur hexafluoride use has ...

Guffey, Eric J. (Eric Jemison)

2011-01-01T23:59:59.000Z

186

tall tower facility and instrumentation New coNstraiNts oN the Nitrous oxide budget of agricultural ecosystems  

E-Print Network [OSTI]

thick. The FAO classification is Chernozem. The field site has been under cultivation for the past 125. The tall tower source footprint is dominated by agricultural land use. The domi- nant crop types include measured at 100 m using a three dimensional sonic anemometer- thermometer for computation of energy, water

Minnesota, University of

187

Molybdenum Dioxide As A Solid Oxide Fuel Cell Anodic Catalyst  

E-Print Network [OSTI]

-Marins, Sean Parris, and Caleb Ellefson Introduction to Multiscale Engineering School of Mechanical and Materials Engineering This work was supported by the National Science Foundation's REU program Introduction in fuels such as biodiesel or jet fuel, SOFC anodes are poisoned, rendering them useless. Research

Collins, Gary S.

188

SYNTHESIS OF SULFUR-BASED WATER TREATMENT AGENT FROM SULFUR DIOXIDE WASTE STREAMS  

SciTech Connect (OSTI)

We propose a process that uses sulfur dioxide from coal combustion as a raw material to synthesize polymeric ferric sulfate (PFS), a water treatment agent. The process uses sodium chlorate as an oxidant and ferrous sulfate as an absorbent. The major chemical mechanisms in this reaction system include oxidation, hydrolysis, and polymerization. Oxidation determines sulfur conversion efficiency while hydrolysis and polymerization control the quality of product. Many factors, including SO{sub 2} inlet concentration, flow rate of simulated flue gas, reaction temperature, addition rate of oxidant and stirring rate, may affect the efficiencies of SO{sub 2} removal. Currently, the effects of SO{sub 2} inlet concentration, the flow rate of simulated flue gas and addition rate of flue gas on removal efficiencies of SO{sub 2}, are being investigated. Experiments shown in this report have demonstrated that the conversion efficiencies of sulfur dioxide with ferrous sulfate as an absorbent are in the range of 60-80% under the adopted process conditions. However, the conversion efficiency of sulfur dioxide may be improved by optimizing reaction conditions to be investigated. Partial quality indices of the synthesized products, including Fe{sup 2+} concentration and total iron concentration, have been evaluated.

Robert C. Brown; Maohong Fan

2001-12-01T23:59:59.000Z

189

Enzymatic conversion of carbon dioxide to methanol: Enhanced methanol production in silica sol-gel matrices  

SciTech Connect (OSTI)

Strategies for effective conversion of atmospheric CO{sub 2} to methanol offer promising new technologies not only for recycling of the greenhouse gas but also for an efficient production of fuel alternatives. Partial hydrogenation of carbon dioxide has been accomplished by means of heterogeneous catalysis, electrocatalysis, and photocatalysis. Oxide-based catalysts are predominantly used for industrial fixation of carbon dioxide. A unique approach in this direction involves the use of enzymes as catalysts for conversion of carbon dioxide to methanol. The use of enzymes is particularly appealing since it provides a facile low-temperature route for generation of methanol directly from gaseous carbon dioxide. The authors report an enzymatically coupled sequential reduction of carbon dioxide to methanol by using a series of reactions catalyzed by three different dehydrogenases. Overall, the process involves an initial reduction of CO{sub 2} to formate catalyzed by formate dehydrogenase (F{sub ate}DH), followed by reduction of formate to formaldehyde by formaldehyde dehydrogenase (F{sub ald}DH), and finally formaldehyde is reduced to methanol by alcohol dehydrogenase (ADH). In this process, reduced nicotinamide adenine dinucleotide (NADH) acts as a terminal electron donor for each dehydrogenase-catalyzed reduction.

Obert, R.; Dave, B.C.

1999-12-29T23:59:59.000Z

190

NETL: Carbon Dioxide 101 FAQs  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is the greenhouse effect? is the greenhouse effect? Greenhouse Effect Greenhouse Effect The greenhouse effect is used to describe the phenomenon whereby the Earth's atmosphere traps solar radiation, caused by the presence of gases, such as carbon dioxide (CO2), methane (CH4), and water vapor (H2O), in the atmosphere that allow incoming sunlight to pass through but absorb heat radiated back from the Earth's surface, resulting in higher temperatures. The greenhouse effect gets its name from what actually happens in a greenhouse. In a greenhouse, short wavelength visible sunlight shines through the glass panes and warms the air and the plants inside. The radiation emitted from the heated objects is of longer wavelength and is unable to pass through the glass barrier, maintaining a warm temperature

191

Modeling of UO{sub 2} oxidation in steam atmosphere  

SciTech Connect (OSTI)

Nuclear fuel oxidation is an important phenomenon affecting fission product behavior. As indicated by a number of studies, uranium dioxide shows a very wide range of nonstoichiometric states. In steam, fuel oxidation produces a hyperstoichiometric composition, changing the transport properties. Variation of stoichiometry changes diffusion coefficients for oxygen, noble gases, and fission products substantially, affecting the release of fission products.

Dobrov, B.V.; Likhanskii, V.V. [Triniti Research Center, Triniti, Moscow (Russian Federation); Ozrin, V.D. [Nuclear Safety Institute IBREA, Moscow (Russian Federation)] [and others

1997-12-01T23:59:59.000Z

192

Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, January 1, 1995--March 31, 1995  

SciTech Connect (OSTI)

During this quarter, progress was made on the following tasks: TPD techniques were employed to study the reaction mechanism of the selective catalytic reduction of nitrogen oxide with ammonia over iron oxide pillared clay catalyst; and a sulfur dioxide resistant iron oxide/titanium oxide catalyst was developed.

Li, W.B.; Yang, R.T.

1995-12-01T23:59:59.000Z

193

Enhanced light-conversion efficiency of titanium-dioxide dye-sensitized solar cells with the addition of  

E-Print Network [OSTI]

Enhanced light-conversion efficiency of titanium- dioxide dye-sensitized solar cells attributed to a slightly enhanced dye-adsorption behavior and a change in the TiO2 surface chemistry due oxide have been studied to modify the surface chemistry through pH changes to enhance the adsorption

Cao, Guozhong

194

Method for combined removal of mercury and nitrogen oxides from off-gas streams  

DOE Patents [OSTI]

A method for removing elemental Hg and nitric oxide simultaneously from a gas stream is provided whereby the gas stream is reacted with gaseous chlorinated compound to convert the elemental mercury to soluble mercury compounds and the nitric oxide to nitrogen dioxide. The method works to remove either mercury or nitrogen oxide in the absence or presence of each other.

Mendelsohn, Marshall H. (Downers Grove, IL); Livengood, C. David (Lockport, IL)

2006-10-10T23:59:59.000Z

195

Carbon Dioxide Information Analysis Center (CDIAC)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Latest Estimates Latest Estimates Atmos CO2 Level 397.31 ppm Fossil CO2 Emissions 9,167 MMT Carbon Global Temp Anomaly +0.56°C / +1.01°F Global Sea Level Rise +2.9 ± 0.4 mm/y Carbon Dioxide Information Analysis Center The Carbon Dioxide Information Analysis Center (CDIAC) is the primary climate-change data and information analysis center of the U.S. Department of Energy (DOE). CDIAC is located at DOE's Oak Ridge National Laboratory (ORNL) and includes the World Data Center for Atmospheric Trace Gases. CDIAC's data holdings include estimates of carbon dioxide emissions from fossil-fuel consumption and land-use changes; records of atmospheric concentrations of carbon dioxide and other radiatively active trace gases; carbon cycle and terrestrial carbon management datasets and analyses; and

196

Carbon Dioxide Emission Factors for Coal  

Reports and Publications (EIA)

The Energy Information Administration (EIA) has developed factors for estimating the amount of carbon dioxide emitted, accounting for differences among coals, to reflect the changing "mix" of coal in U.S. coal consumption.

1994-01-01T23:59:59.000Z

197

Storage of Carbon Dioxide in Offshore Sediments  

Science Journals Connector (OSTI)

...Carbon Dioxide in Offshore Sediments 10...efforts to increase energy efficiency; efforts...sources, including renewable and nuclear energy; and investment...repositories. Offshore geological repositories...between Scotland and Norway and far out of...

Daniel P. Schrag

2009-09-25T23:59:59.000Z

198

Displacement of crude oil by carbon dioxide  

E-Print Network [OSTI]

DISPLACEMENT OF CRUDE OIL BY CARBON DIOXIDE A Thesis by OLUSEGUN OMOLE Submitted to the Graduate College of Texas ASM University in part';al fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1980 Major Subject...: Petroleum Engineering DISPLACEMENT OF CRUDE OIL BY CARBON DIOXIDE A Thesis by OLUSEGUN OMOLE Approved as to style and content by: hairman of Committee / (Member (Member (Member (Hea o Depart ent December 1980 ABSTRACT Displacement of Crude Oil...

Omole, Olusegun

1980-01-01T23:59:59.000Z

199

Non-destructive radiocarbon and stable isotopic analyses of archaeological materials using plasma oxidation  

E-Print Network [OSTI]

Plasma oxidation, an alternative to combustion, is shown to be a non-destructive method for obtaining radiocarbon dates on perishable organic artifacts. Electrically excited oxygen gently converts organic carbon to carbon dioxide. Radiocarbon...

Steelman, Karen Lynn

2005-11-01T23:59:59.000Z

200

Application of a cw quantum cascade laser CO2 analyser to catalytic oxidation reaction monitoring  

Science Journals Connector (OSTI)

Catalytic oxidation reaction monitoring has been performed for the first time with a trace gas carbon dioxide analyser based on a continuous wave (cw), thermoelectrically cooled (TEC), distributed feedback (DFB)

V. L. Kasyutich; D. Poulidi; M. Jalil; I. S. Metcalfe; P. A. Martin

2013-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Dielectric constant of the mixture (1) ethane-1,2-diol; (2) tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

202

Refractive index of the mixture (1) ethane-1,2-diol; (2) tetrahydrothiophene-1,1-dioxide  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

203

Dielectric constant of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) 2-(2-hydroxyethoxy)-ethanol  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

204

Refractive index of the mixture (1) tetrahydrothiophene-1,1-dioxide; (2) 2-(2-hydroxyethoxy)-ethanol  

Science Journals Connector (OSTI)

Substance name(s): tetrahydrothiophene-1,1-dioxide; tetrahydrothiophene-S,S-dioxide; tetrahydro-thiophene-1,1 ... ,1-dioxide; thiacyclopentane dioxide; tetramethylene sulfone; tetrahydrothiophene 1...

Ch. Wohlfarth

2008-01-01T23:59:59.000Z

205

Oriented conductive oxide electrodes on SiO2/Si and glass  

DOE Patents [OSTI]

A thin film structure is provided including a silicon substrate with a layer of silicon dioxide on a surface thereof, and a layer of cubic oxide material deposited upon the layer of silicon dioxide by ion-beam-assisted-deposition, said layer of cubic oxide material characterized as biaxially oriented. Preferably, the cubic oxide material is yttria-stabilized zirconia. Additional thin layers of biaxially oriented ruthenium oxide or lanthanum strontium cobalt oxide are deposited upon the layer of yttria-stabilized zirconia. An intermediate layer of cerium oxide is employed between the yttria-stabilized zirconia layer and the lanthanum strontium cobalt oxide layer. Also, a layer of barium strontium titanium oxide can be upon the layer of biaxially oriented ruthenium oxide or lanthanum strontium cobalt oxide. Also, a method of forming such thin film structures, including a low temperature deposition of a layer of a biaxially oriented cubic oxide material upon the silicon dioxide surface of a silicon dioxide/silicon substrate is provided.

Jia, Quanxi (Los Alamos, NM); Arendt, Paul N. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

206

Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4: April 9, 2007 4: April 9, 2007 Carbon Dioxide Emissions to someone by E-mail Share Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Facebook Tweet about Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Twitter Bookmark Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Google Bookmark Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Delicious Rank Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Digg Find More places to share Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on AddThis.com... Fact #464: April 9, 2007 Carbon Dioxide Emissions Carbon dioxide (CO2) emissions from the transportation sector began to

207

Corrosion of austenitic and ferritic-martensitic steels exposed to supercritical carbon dioxide  

SciTech Connect (OSTI)

Supercritical carbon dioxide (S-CO{sub 2}) is a potential coolant for advanced nuclear reactors. The corrosion behavior of austenitic steels (alloys 800H and AL-6XN) and ferritic-martensitic (FM) steels (F91 and HCM12A) exposed to S-CO{sub 2} at 650 C and 20.7 MPa is presented in this work. Oxidation was identified as the primary corrosion phenomenon. Alloy 800H had oxidation resistance superior to AL-6XN. The FM steels were less corrosion resistant than the austenitic steels, which developed thick oxide scales that tended to exfoliate. Detailed microstructure characterization suggests the effect of alloying elements such as Al, Mo, Cr, and Ni on the oxidation of the steels.

Tan, Lizhen [ORNL; Anderson, Mark [University of Wisconsin, Madison; Taylor, D [Bechtel Marine Propulsion Corporation; Allen, Todd R. [University of Wisconsin, Madison

2011-01-01T23:59:59.000Z

208

Increased Cytotoxicity of Oxidized Flame Soot  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Increased Cytotoxicity of Oxidized Flame Soot Increased Cytotoxicity of Oxidized Flame Soot Title Increased Cytotoxicity of Oxidized Flame Soot Publication Type Journal Article Year of Publication 2012 Authors Holder, Amara L., Brietta J. Carter, Regine Goth-Goldstein, Donald Lucas, and Catherine P. Koshland Journal Atmospheric Pollution Research Volume 3 Start Page 25 Issue 1 Pagination 25-31 Date Published 01/2012 Keywords health effects, ozone, soot, toxicity Abstract Combustion-generated particles released into the atmosphere undergo reactions with oxidants, which can change the particles' physiochemical characteristics. In this work, we compare the physical and chemical properties and cellular response of particles fresh from a flame with those oxidized by ozone and nitrogen dioxide. The reaction with ozone and nitrogen dioxide does not significantly modify the physical characteristics of the particles (primary particle size, fractal dimension, and surface area). However, oxidation affects the chemical characteristics of the particles, creating more oxygen and nitrogen containing functional groups, and increases their hydrophilicity. In addition, oxidized soot generates more reactive oxygen species, as measured by the dithiothreitol (DTT) assay. Furthermore, oxidized soot is 1.5-2 times more toxic than soot that was not reacted with ozone, but the inflammatory response, measured by interleukin-8 (IL-8) secretion, is unchanged. These results imply that combustion-generated particles released into the atmosphere will have an increased toxicity on or after high ozone days.

209

Fertilizer and Nitrogen 1 billion tons of artificial nitrogen fertilizer used annually.  

E-Print Network [OSTI]

Fertilizer and Nitrogen 1 billion tons of artificial nitrogen fertilizer used annually. Emissions. (fertilizers that use nitric acid or ammonium bicarbonate result in emissions of nitrogen oxides, nitrous oxide, ammonia and carbon dioxide into the atmosphere.) ~Indirect: Phosphorus in excess causes eutrophication

Toohey, Darin W.

210

Winter and summer nitrous oxide and nitrogen oxides fluxes from a seasonally snow-covered subalpine meadow at Niwot Ridge, Colorado  

E-Print Network [OSTI]

of Geography, University of Colorado, Boulder, CO, USA M. W.Alpine Research, University of Colorado, Boulder, CO, USA D.Sciences, University of Colorado, Boulder, CO, USA B. Hall

2009-01-01T23:59:59.000Z

211

SEQUESTERING CARBON DIOXIDE IN COALBEDS  

SciTech Connect (OSTI)

The authors' long-term goal is to develop accurate prediction methods for describing the adsorption behavior of gas mixtures on solid adsorbents over complete ranges of temperature, pressure, and adsorbent types. The originally-stated, major objectives of the current project are to: (1) measure the adsorption behavior of pure CO{sub 2}, methane, nitrogen, and their binary and ternary mixtures on several selected coals having different properties at temperatures and pressures applicable to the particular coals being studied, (2) generalize the adsorption results in terms of appropriate properties of the coals to facilitate estimation of adsorption behavior for coals other than those studied experimentally, (3) delineate the sensitivity of the competitive adsorption of CO{sub 2}, methane, and nitrogen to the specific characteristics of the coal on which they are adsorbed; establish the major differences (if any) in the nature of this competitive adsorption on different coals, and (4) test and/or develop theoretically-based mathematical models to represent accurately the adsorption behavior of mixtures of the type for which measurements are made. As this project developed, an important additional objective was added to the above original list. Namely, we were encouraged to interact with industry and/or governmental agencies to utilize our expertise to advance the state of the art in coalbed adsorption science and technology. As a result of this additional objective, we participated with the Department of Energy and industry in the measurement and analysis of adsorption behavior as part of two distinct investigations. These include (a) Advanced Resources International (ARI) DOE Project DE-FC26-00NT40924, ''Adsorption of Pure Methane, Nitrogen, and Carbon Dioxide and Their Mixtures on Wet Tiffany Coal'', and (b) the DOE-NETL Project, ''Round Robin: CO{sub 2} Adsorption on Selected Coals''. These activities, contributing directly to the DOE projects listed above, also provided direct synergism with the original goals of our work. Specific accomplishments of this project are summarized below in three broad categories: experimentation, model development, and coal characterization.

K.A.M. Gasem; R.L. Robinson, Jr.; J.E. Fitzgerald; Z. Pan; M. Sudibandriyo

2003-04-30T23:59:59.000Z

212

A Vortex Contactor for Carbon Dioxide Separations  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Vortex Contactor for Carbon Dioxide Separations Vortex Contactor for Carbon Dioxide Separations Kevin T. Raterman (ratekt@inel.gov; 208-526-5444) Michael McKellar (mgq@inel.gov; 208-526-1346) Anna Podgorney (poloak@inel.gov; 208-526-0064) Douglas Stacey (stacde@inel.gov; 208-526-3938) Terry Turner (tdt@inel.gov; 208-526-8623) Idaho National Engineering and Environmental Laboratory P.O. Box 1625 Idaho Falls, Idaho 83415-2110 Brian Stokes (bxs9@pge.com; 415-972-5591) John Vranicar (jjv2@pge.com; 415-972-5591) Pacific Gas & Electric Company 123 Mission Street San Francisco, CA 94105 Introduction Many analysts 1,2,3 identify carbon dioxide (CO 2 ) capture and separation as a major roadblock in efforts to cost effectively mitigate greenhouse gas emissions via sequestration. An assessment 4 conducted by the International Energy Agency (IEA)

213

Reaction of titanium polonides with carbon dioxide  

SciTech Connect (OSTI)

It has been ascertained that heating titanium and tantalum in carbon dioxide to temperatures of 500 or 800/sup 0/C alters the composition of the gas phase, causing the advent of carbon monoxide and lowering the oxygen content. Investigation of the thermal stability of titanium polonides in a carbon dioxide medium has shown that titanium mono- and hemipolonides are decomposed at temperatures below 350/sup 0/C. The temperature dependence of the vapor pressure of polonium produced in the decomposition of these polonides in a carbon dioxide medium have been determined by a radiotensimetric method. The enthalpy of the process, calculated from this relationship, is close to the enthalpy of vaporization of elementary polonium in vacuo.

Abakumov, A.S.; Malyshev, M.L.; Reznikova, N.F.

1987-05-01T23:59:59.000Z

214

EIA - International Energy Outlook 2007 - Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Relaated Carbon Dioxide Emissions Energy-Relaated Carbon Dioxide Emissions International Energy Outlook 2007 Chapter 7 - Energy-Related Carbon Dioxide Emissions In 2004, non-OECD emissions of carbon dioxide were greater than OECD emissions for the first time. In 2030, carbon dioxide emissions from the non-OECD countries are projected to exceed those from the OECD countries by 57 percent. Figure 77. World Energy-Related Carbon Dioxide Emissions by Region, 2003-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center on 202-585-8800. Figure Data Figure 78. World energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy at 202-586-8800. Figure Data Carbon dioxide is the most abundant anthropogenic (human-caused) greenhouse

215

EIA - International Energy Outlook 2008-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Related Carbon Dioxide Emissions Energy-Related Carbon Dioxide Emissions International Energy Outlook 2008 Chapter 7 - Energy-Related Carbon Dioxide Emissions In 2005, non-OECD emissions of carbon dioxide exceeded OECD emissions by 7 percent. In 2030, carbon dioxide emissions from the non-OECD countries are projected to exceed those from the OECD countries by 72 percent. Figure 75. World Energy-Related Carbon Dioxide Emissions, 2005-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 76. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 77. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the OECD Economies, 2005-2030 (Percent per Year). Need help, contact the National Energy Information Center at 202-586-8800.

216

Breath is a mixture of nitrogen, oxygen, carbon dioxide, water  

E-Print Network [OSTI]

12 SCIENCE Breath is a mixture of nitrogen, oxygen, carbon dioxide, water vapour, inert gases. On the basis of proton affinity, the major constituents of air and breath (nitrogen, oxygen, carbon dioxide

217

A methodology for forecasting carbon dioxide flooding performance  

E-Print Network [OSTI]

A methodology was developed for forecasting carbon dioxide (CO2) flooding performance quickly and reliably. The feasibility of carbon dioxide flooding in the Dollarhide Clearfork "AB" Unit was evaluated using the methodology. This technique is very...

Marroquin Cabrera, Juan Carlos

2012-06-07T23:59:59.000Z

218

Graph Model for Carbon Dioxide Emissions from Metallurgical Plants  

Science Journals Connector (OSTI)

Mathematical models are presented for estimating carbon dioxide emissions from metallurgical processes. The article also presents ... in graph form to calculate transit and net emissions of carbon dioxide based o...

Yu. N. Chesnokov; V. G. Lisienko; A. V. Lapteva

2013-03-01T23:59:59.000Z

219

E-Print Network 3.0 - arterial carbon dioxide Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

reactivity. inserm-00495071... , manufactured nanoparticles, especially carbon or titanium dioxide nanoparticles, could be relevant surrogate... of carbon or titanium dioxide...

220

The Greenness of Cities: Carbon Dioxide Emissions and Urban Development  

E-Print Network [OSTI]

carbon dioxide emissions per 1,000 cubic feet of natural gas. In this case, there is much less energy

Glaeser, Edward L.; Kahn, Matthew E.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Oxidative Degradation of BPA Using TiO2 in Water, and Transition of Estrogenic Activity in the Degradation Pathways  

Science Journals Connector (OSTI)

The oxidative degradation behavior of bisphenol A (BPA) using titanium dioxide (TiO2...) in water was investigated. The main purposes were to clarify the relationship with estrogenic activity from the degradation...

Kei Nomiyama; Teiji Tanizaki; Toyokazu Koga…

2007-01-01T23:59:59.000Z

222

Designed amyloid fibers as materials for selective carbon dioxide capture  

E-Print Network [OSTI]

Designed amyloid fibers as materials for selective carbon dioxide capture Dan Lia,b,c,1 , Hiroyasu demonstrate that amyloids, self-assembling protein fibers, are effective for selective carbon dioxide capture formation rate is fast enough to capture carbon dioxide by dynamic separation, undiminished by the presence

223

Array of titanium dioxide nanostructures for solar energy utilization  

DOE Patents [OSTI]

An array of titanium dioxide nanostructures for solar energy utilization includes a plurality of nanotubes, each nanotube including an outer layer coaxial with an inner layer, where the inner layer comprises p-type titanium dioxide and the outer layer comprises n-type titanium dioxide. An interface between the inner layer and the outer layer defines a p-n junction.

Qiu, Xiaofeng; Parans Paranthaman, Mariappan; Chi, Miaofang; Ivanov, Ilia N; Zhang, Zhenyu

2014-12-30T23:59:59.000Z

224

Thermal Infrared Radiation and Carbon Dioxide in the Atmosphere  

E-Print Network [OSTI]

dioxide Water vapor #12;Atmospheric composition (parts per million by volume) · Nitrogen (N2) 780Thermal Infrared Radiation and Carbon Dioxide in the Atmosphere Bill Satzer 3M Company #12;Outline,840 · Oxygen (O2) 209,460 · Argon (Ar) 9340 · Carbon dioxide (CO2) 394 · Methane (CH4) 1.79 · Ozone (O3) 0

Olver, Peter

225

World Energy Consumption and Carbon Dioxide Emissions: 1950 2050  

E-Print Network [OSTI]

-U" relation with a within- sample peak between carbon dioxide emissions (and energy use) per capita and perWorld Energy Consumption and Carbon Dioxide Emissions: 1950 Ã? 2050 Richard Schmalensee, Thomas M. Stoker, andRuth A. Judson* Emissions of carbon dioxide from combustion of fossil fuels, which may

226

Fabrication of Cerium Oxide and Uranium Oxide Microspheres for Space Nuclear Power Applications  

SciTech Connect (OSTI)

Cerium oxide and uranium oxide microspheres are being produced via an internal gelation sol-gel method to investigate alternative fabrication routes for space nuclear fuels. Depleted uranium and non-radioactive cerium are being utilized as surrogates for plutonium-238 (Pu-238) used in radioisotope thermoelectric generators and for enriched uranium required by nuclear thermal rockets. While current methods used to produce Pu-238 fuels at Los Alamos National Laboratory (LANL) involve the generation of fine powders that pose a respiratory hazard and have a propensity to contaminate glove boxes, the sol-gel route allows for the generation of oxide microsphere fuels through an aqueous route. The sol-gel method does not generate fine powders and may require fewer processing steps than the LANL method with less operator handling. High-quality cerium dioxide microspheres have been fabricated in the desired size range and equipment is being prepared to establish a uranium dioxide microsphere production capability.

Jeffrey A. Katalenich; Michael R. Hartman; Robert C. O'Brien

2013-02-01T23:59:59.000Z

227

Recovery Act: Carbon Dioxide-Water Emulsion for Enhanced Oil Recovery and Permanent Sequestration of Carbon Dioxid  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Dioxide-Water Carbon Dioxide-Water Emulsion for Enhanced Oil Recovery and Permanent Sequestration of Carbon Dioxide Background The U.S. Department of Energy (DOE) distributed a portion of American Recovery and Reinvestment Act (ARRA) funds to advance technologies for chemical conversion of carbon dioxide (CO 2 ) captured from industrial sources. The focus of the research projects is permanent sequestration of CO 2 through mineralization or development

228

CARBON DIOXIDE AND OUR OCEAN LEGACY  

E-Print Network [OSTI]

to energy-consuming activities that burn fossil fuels. On a yearly basis, the average Ameri- can produces 22 of carbon dioxide from the atmosphere, or nearly half of the fossil fuel carbon emissions over this period sea life that depend on the health and avail- ability of these shelled organisms. At present, ocean

229

Predicting Future Atmospheric Carbon Dioxide Levels  

Science Journals Connector (OSTI)

...re-quired 5-Mhz bandwidth...interstellar plasma. For UHF frequencies of 500 Mhz, this amounts...chang-ing the atmospheric carbon dioxide...in the polar areas. Although...The shaded area indicates the...per-missible atmospheric CO2 level might...emission rates are largest between 2000...

U. Siegenthaler; H. Oeschger

1978-01-27T23:59:59.000Z

230

Synthetic fuels, carbon dioxide and climate  

Science Journals Connector (OSTI)

The observed increase in atmospheric carbon dioxide (CO2) has been attributed to the use of fossil fuels. There is concern that the generation and use of synthetic fuels derived from oil shale and coal will accelerate the increase of CO2.

Alex R. Sapre; John R. Hummel; Ruth A. Reck

1982-01-01T23:59:59.000Z

231

Introduction Air Quality and Nitrogen Dioxide  

E-Print Network [OSTI]

- Global update 2005. Primary sources of air pollutants include combustion products from power generationIntroduction Air Quality and Nitrogen Dioxide Air pollution can be defined as "the presence effects to man and/or the environment". (DEFRA) "Clean air is considered to be a basic requirement

232

Hydroelectric Reservoirs -the Carbon Dioxide and Methane  

E-Print Network [OSTI]

Hydroelectric Reservoirs - the Carbon Dioxide and Methane Emissions of a "Carbon Free" Energy an overview on the greenhouse gas production of hydroelectric reservoirs. The goals are to point out the main how big the greenhouse gas emissions from hydroelectric reservoirs are compared to thermo-power plants

Fischlin, Andreas

233

DOE Hydrogen Analysis Repository: Carbon Dioxide Compression, Transport,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Dioxide Compression, Transport, and Storage Carbon Dioxide Compression, Transport, and Storage Project Summary Full Title: Techno-Economic Models for Carbon Dioxide Compression, Transport, and Storage & Correlations for Estimating Carbon Dioxide Density and Viscosity Project ID: 195 Principal Investigator: David McCollum Brief Description: This project addresses several components of carbon capture and storage (CCS) costs, provides technical models for determining the engineering and infrastructure requirements of CCS, and describes some correlations for estimating CO2 density and viscosity. Keywords: Pipeline, transportation, greenhouse gases (GHG), costs, technoeconomic analysis Purpose Estimate costs of carbon dioxide capture, compression, transport, storage, etc., and provide some technical models for determining the engineering and

234

SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

10-Megawatt Supercritical Carbon 10-Megawatt Supercritical Carbon Dioxide Turbine to someone by E-mail Share SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Facebook Tweet about SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Twitter Bookmark SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Google Bookmark SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Delicious Rank SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Digg Find More places to share SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative

235

International Energy Outlook 2006 - Energy-Related Carbon Dioxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

Eneregy-Related Carbon Dioxide Emissions Eneregy-Related Carbon Dioxide Emissions International Energy Outlook 2006 Chapter 7: Energy-Related Carbon Dioxide Emissions In the coming decades, actions to limit greenhouse gas emissions could affect patterns of energy use around the world and alter the level and composition of energy-related carbon dioxide emissions by energy source. Figure 65. World Carbon Dioxide Emissions by Region, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 66. World Carbon Dioxide Emissions by Fuel Type, 1980-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Carbon dioxide is one of the most prevalent greenhouse gases in the

236

EIA - 2010 International Energy Outlook - Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Related Carbon Dioxide Emissions Energy-Related Carbon Dioxide Emissions International Energy Outlook 2010 Energy-Related Carbon Dioxide Emissions In 2007, non-OECD energy-related emissions of carbon dioxide exceeded OECD emissions by 17 percent. In the IEO2010 Reference case, energy-related carbon dioxide emissions from non-OECD countries in 2035 are about double those from OECD countries. Overview Because anthropogenic emissions of carbon dioxide result primarily from the combustion of fossil fuels, world energy use continues to be at the center of the climate change debate. In the IEO2010 Reference case, world energy-related carbon dioxide emissions29 grow from 29.7 billion metric tons in 2007 to 33.8 billion metric tons in 2020 and 42.4 billion metric tons in 2035 (Table 18).30

237

Kinetics of the heterogeneous photocatalytic oxidation of isopropanol  

SciTech Connect (OSTI)

Intrinsic kinetics for the ambient temperature photocatalytic oxidation (PCO) of dilute isopropanol (IPA) in humid air over near-ultraviolet (UV) irradiated titanium dioxide have been determined using a continuous microreactor flow system. The IPA disappearance rate exhibits a Langmuir-Hinshelwood-Hougen-Watson (LHHW) type dependence on IPA concentration. The rate is nearly first order in UV irradiance at low UV flux. The rate is independent of relative humidity R{sub H} at low R{sub H} levels, but is enhanced by water vapor concentration at higher levels. This relatively unique behavior is likely a direct consequence of the adsorption strength of alcohols on titania, which in general is considerably higher than the corresponding adsorption strengths for other classes of organic compounds. In addition to carbon dioxide, acetone is generated as a product of IPA destruction. This acetone is itself photocatalytically oxidized to carbon dioxide and water vapor at longer residence time. 10 refs., 3 figs.

Ameen, M.; Kalaga, M.; Annapragada, R.; Raupp, G.B. [Arizona State Univ., Tempe, AZ (United States)

1996-12-31T23:59:59.000Z

238

Role of Moisture in Adsorption, Photocatalytic Oxidation, and  

E-Print Network [OSTI]

various Hg emission sources. A novel low-cost methodology using titanium dioxide (TiO2) nanoparticlesRole of Moisture in Adsorption, Photocatalytic Oxidation, and Reemission of Elemental Mercury gas. Without UV irradiation, Hg0 adsorption was found to be insignificant, but it could be enhanced

Li, Ying

239

Carbon Dioxide Capture Process with Regenerable Sorbents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dioxide Capture Process with Regenerable Sorbents Dioxide Capture Process with Regenerable Sorbents sorbent material. Additionally, the design of the system incorporates a cross- flow moving-bed reactor where the gas flows horizontally through a "panel" of solid sorbent that is slowly moving down-wards under gravity flow. With the expanded use of fossil fuels expected throughout the world, the increase in CO 2 emissions may prove to contribute even more significantly to global climate change. To address this problem, carbon sequestration scientists and engineers have proposed a number of methods to remove CO 2 from gas streams, such as chemical absorption with a solvent, membrane separation, and cryogenic fractionation. However, all of these methods are expensive and possibly cost-prohibitive for a specific application.

240

Atmospheric Carbon Dioxide Record from Mauna Loa  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

SIO Air Sampling Network » Mauna Loa SIO Air Sampling Network » Mauna Loa Atmospheric Carbon Dioxide Record from Mauna Loa DOI: 10.3334/CDIAC/atg.035 graphics Graphics data Data Investigators R.F. Keeling, S.C. Piper, A.F. Bollenbacher and J.S. Walker Carbon Dioxide Research Group Scripps Institution of Oceanography University of California La Jolla, California 92093-0444, U.S.A. Period of Record 1958-2008 Methods Air samples at Mauna Loa are collected continuously from air intakes at the top of four 7-m towers and one 27-m tower. Four air samples are collected each hour for the purpose of determining the CO2 concentration. Determinations of CO2 are made by using a Siemens Ultramat 3 nondispersive infrared gas analyzer with a water vapor freeze trap. This analyzer registers the concentration of CO2 in a stream of air flowing at ~0.5

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Carbon dioxide utilization and seaweed production  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

dioxide utilization and seaweed production dioxide utilization and seaweed production V.R.P.Sinha World Bank Project Bangladesh Fisheries Research Institute, Mymensingh, Bangladesh e-mails; vrpsinha@ mymensingh.net, vidyut_s@hotmail.com Lowell Fraley L.D. Fraley & Associates, LLC, P.O. Box 1525, Sugarland, TX 77487, USA, e-mail idf@hia.net BS Chowdhry ISS Consultants, Inc. 13111 Westheimer, Suite 303, Houston, Texas 77077, USA, e-mail bsc@issci.com Abstract: Stronger growth in many plants stimulated by increased CO 2 concentration should lead to greater biological productivity with an expected increase in the photosynthetic storage of carbon. Thus, the biosphere will serve as a sink for CO 2 , though it will also act as a source too, because of respiration. Normally net photosynthesis dominates in summer and

242

Coal Bed Sequestration of Carbon Dioxide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

COAL BED SEQUESTRATION OF CARBON DIOXIDE COAL BED SEQUESTRATION OF CARBON DIOXIDE R. Stanton (rstanton@usgs.gov; 703-648-6462) U.S. Geological Survey MS 956 National Center Reston, VA 20192 R. Flores (rflores@usgs.gov; 303-236-7774) U.S. Geological Survey MS 939, Denver Federal Center Denver, CO 80225 P.D. Warwick (pwarwick@usgs.gov; 703-648-6469) H. Gluskoter (halg@usgs.gov; 703-648-6429) U.S. Geological Survey MS 956 National Center Reston, VA 20192 G.D. Stricker (303-236-7763) U.S. Geological Survey MS 939, Denver Federal Center Denver, CO 80225 Introduction Geologic sequestration of CO 2 generated from fossil fuel combustion may be an environmentally attractive method to reduce the amount of greenhouse gas emissions. Of the geologic options, sequestering CO

243

The urgent need for carbon dioxide sequestration  

SciTech Connect (OSTI)

The danger of global warming has put in question the use of fossil fuels which constitute the most abundant and most reliable energy resource. Meeting the ever growing world demand for cheap energy, while simultaneously achieving the required drastic reduction in CO{sub 2} emissions can only be accomplished by actively preventing carbon dioxide generated in the combustion of fuels from accumulating in the atmosphere, i.e. by sequestration. Sequestration is possible and economically viable and is currently the only realistic solution to the dilemma of CO{sub 2} emissions. The authors have developed a very promising approach that disposes of carbon dioxide by chemically combining it in an exothermic reaction with readily available minerals to form carbonates. The resulting carbonates are stable solids that are known to be environmentally benign and to be stable on geological time scales. This stands in contrast to most other methods that do not appear to fully solve the long term problem.

Lackner, K.S.; Butt, D.P.; Jensen, R.; Ziock, H.

1998-09-01T23:59:59.000Z

244

Carbon Dioxide Emissions from Industrialized Countries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6 6 Carbon Dioxide Emissions from Industrialized Countries Extended discussion here Carbon emissions per capita 1973 vs. 1991 by major end use. (Denmark comparison is 1972 and 1991) With the third Conference of the Parties (COP-3) in Kyoto approaching, there is a great deal of excitement over policies designed to reduce future carbon dioxide (CO2) emissions from fossil fuels. At COP-3, more than 130 nations will meet to create legally binding targets for CO2 reductions. Accordingly, we have analyzed the patterns of emissions arising from the end uses of energy (and electricity production) in ten industrialized countries, with surprising and, in some cases, worrisome results. The surprise is that emissions in many countries in the early 1990s were lower than in the 1970s in an absolute sense and on a per capita basis; the worry

245

Advanced byproduct recovery: Direct catalytic reduction of sulfur dioxide to elemental sulfur. Fourth quarterly technical progress report  

SciTech Connect (OSTI)

The team of Arthur D. Little, Tufts University and Engelhard Corporation are conducting Phase 1 of a four and a half year, two-phase effort to develop and scale-up an advanced byproduct recovery technology that is a direct, single-stage, catalytic process for converting sulfur dioxide to elemental sulfur. This catalytic process reduces SO{sub 2} over a fluorite-type oxide (such as ceria and zirconia). The catalytic activity can be significantly promoted by active transition metals, such as copper. More than 95% elemental sulfur yield, corresponding to almost complete sulfur dioxide conversion, was obtained over a Cu-Ce-O oxide catalyst as part of an on-going DOE-sponsored, University Coal Research Program. This type of mixed metal oxide catalyst has stable activity, high selectivity for sulfur production, and is resistant to water and carbon dioxide poisoning. Tests with CO and CH{sub 4} reducing gases indicate that the catalyst has the potential for flexibility with regard to the composition of the reducing gas, making it attractive for utility use. The performance of the catalyst is consistently good over a range of SO{sub 2} inlet concentration (0.1 to 10%) indicating its flexibility in treating SO{sub 2} tail gases as well as high concentration streams.

NONE

1997-01-01T23:59:59.000Z

246

Carbon dioxide in Arctic and subarctic regions  

SciTech Connect (OSTI)

A three year research project was presented that would define the role of the Arctic ocean, sea ice, tundra, taiga, high latitude ponds and lakes and polar anthropogenic activity on the carbon dioxide content of the atmosphere. Due to the large physical and geographical differences between the two polar regions, a comparison of CO/sub 2/ source and sink strengths of the two areas was proposed. Research opportunities during the first year, particularly those aboard the Swedish icebreaker, YMER, provided additional confirmatory data about the natural source and sink strengths for carbon dioxide in the Arctic regions. As a result, the hypothesis that these natural sources and sinks are strong enough to significantly affect global atmospheric carbon dioxide levels is considerably strengthened. Based on the available data we calculate that the whole Arctic region is a net annual sink for about 1.1 x 10/sup 15/ g of CO/sub 2/, or the equivalent of about 5% of the annual anthropogenic input into the atmosphere. For the second year of this research effort, research on the seasonal sources and sinks of CO/sub 2/ in the Arctic will be continued. Particular attention will be paid to the seasonal sea ice zones during the freeze and thaw periods, and the tundra-taiga regions, also during the freeze and thaw periods.

Gosink, T. A.; Kelley, J. J.

1981-03-01T23:59:59.000Z

247

Metal Oxides  

Science Journals Connector (OSTI)

Metal oxides are the class of materials having the widest application in gas sensors. This chapter presents information related to the application of various metal oxides in gas sensors designed on different p...

Ghenadii Korotcenkov

2013-01-01T23:59:59.000Z

248

Solid oxide electrochemical reactor science.  

SciTech Connect (OSTI)

Solid-oxide electrochemical cells are an exciting new technology. Development of solid-oxide cells (SOCs) has advanced considerable in recent years and continues to progress rapidly. This thesis studies several aspects of SOCs and contributes useful information to their continued development. This LDRD involved a collaboration between Sandia and the Colorado School of Mines (CSM) ins solid-oxide electrochemical reactors targeted at solid oxide electrolyzer cells (SOEC), which are the reverse of solid-oxide fuel cells (SOFC). SOECs complement Sandia's efforts in thermochemical production of alternative fuels. An SOEC technology would co-electrolyze carbon dioxide (CO{sub 2}) with steam at temperatures around 800 C to form synthesis gas (H{sub 2} and CO), which forms the building blocks for a petrochemical substitutes that can be used to power vehicles or in distributed energy platforms. The effort described here concentrates on research concerning catalytic chemistry, charge-transfer chemistry, and optimal cell-architecture. technical scope included computational modeling, materials development, and experimental evaluation. The project engaged the Colorado Fuel Cell Center at CSM through the support of a graduate student (Connor Moyer) at CSM and his advisors (Profs. Robert Kee and Neal Sullivan) in collaboration with Sandia.

Sullivan, Neal P. (Colorado School of Mines, Golden, CO); Stechel, Ellen Beth; Moyer, Connor J. (Colorado School of Mines, Golden, CO); Ambrosini, Andrea; Key, Robert J. (Colorado School of Mines, Golden, CO)

2010-09-01T23:59:59.000Z

249

HYBRID HETEROGENEOUS CATALYSTS FOR HYDROGENATION OF CARBON DIOXIDE  

SciTech Connect (OSTI)

HYBRID HETEROGENEOUS CATALYSTS FOR HYDROGENATION OF CARBON DIOXIDE Lucia M. Petkovic, Harry W. Rollins, Daniel M. Ginosar, and Kyle C. Burch Idaho National Laboratory P.O. Box 1625 Idaho Falls, ID 83415-2208 Introduction Anthropogenic emissions of carbon dioxide, a gas often associated with global warming, have increased considerably since the beginning of the industrial age.1 In the U.S., stationary CO2 sources, such as electricity generation plants, produce about one-third of the anthropogenic CO2 generation. Reports2 indicate that the power required to recover 90% of the CO2 from an integrated coal-fired power-plant is about 10% of the power-plant capacity. This energy requirement can be reduced to less than 1% if the recovered CO2 is applied to the production of synthetic fuels. However, the lack of efficient catalysts along with the costs of energy and hydrogen has prevented the development of technologies for direct hydrogenation of CO2.3 Although the cost of hydrogen for hydrogenating CO2 is not economically attractive at present, the future production of hydrogen by nuclear power sources could completely change this scenario.2 Still, an efficient catalyst will be essential for commercial application of those processes. The objective of the work presented here was the development of hybrid catalysts for one-step carbon dioxide hydrogenation to liquid fuels. The hybrid catalysts, which were prepared by two novel techniques, included a copper/zinc oxide catalytic function distributed within an acidic zeolitic matrix. Results of catalyst activity and selectivity studies at atmospheric pressure are presented in this contribution. Experimental Catalysts were prepared by two novel techniques and under several different conditions to produce copper/zinc oxide/zeolite materials. Once synthesized, samples were pelletized and the fraction between 40-60 mesh was utilized for the experiments. Two hundred milligrams of catalyst were loaded in a U-tube stainless steel reactor and a flow of 100 cm3/min of a 10:90 H2:Ar mixture was passed through the catalyst bed while the temperature was increased from room temperature to 513 K at 1.8 K/min and held at 513 K for 15 h. A reactant gas mixture composed by 10 cm3/min of CO2 and 30 cm3/min of H2 was then passed through the catalyst bed and the reaction products monitored by on-line gas chromatographic analyses using an SRI Multiple Gas Analyzer #2 equipped with 3 columns (MoleSieve 13X, Hayesep-D, and MXT-1) and 3 detectors (TCD, FID, and FID-methanizer). This GC system allowed for quantification of inert gases, CO, CO2, methanol, dimethylether, higher alcohols, water, and hydrocarbons up to C20. One hundred milligrams of a commercial syngas-to-methanol catalyst along with the same amount of a commercial zeolite catalyst was utilized under the same reaction conditions for comparison purposes. These catalysts were utilized either in two-layers (Com1) or mixed together (Com2). Results and Discussion Under the conditions applied in this study, the main reaction products were CO, CH3OH, CH3OCH3, and H2O. Methanol and dimethylether production rates and selectivities with respect to CO formation are presented in Figures 1 and 2, respectively. Although the activity of the synthesized catalysts did not surpass the commercial catalysts, the selectivity to oxygenates with respect to CO on most of the synthesized catalysts were better than on the commercial catalysts. For example, cat

Licia M. Petkovic; Harry W. Rollins; Daniel M. Ginosar; Kyle C. Burch

2006-09-01T23:59:59.000Z

250

INDUSTRIAL EFFLUENT TREATMENT USING IONIZING RADIATION COMBINED TO TITANIUM DIOXIDE  

SciTech Connect (OSTI)

The Advanced Oxidation Process (AOP) with OH radicals are the most efficient to mineralize organic compounds, and there are various methods to generate OH radicals as the use of ozone, hydrogen peroxide and ultra-violet radiation and ionizing radiation. The irradiation of aqueous solutions with high-energy electrons results in the excitation and ionizing of the molecules and rapid (10{sup -14} - 10{sup -9} s) formation of reactive intermediates. These reactive species will react with organic compounds present in industrial effluent inducing their decomposition. Titanium dioxide (TiO{sub 2}) catalyzed photoreaction is used to remove a wide range of pollutants in air and water media, combined to UV/VIS light, FeO{sub 2}, and H{sub 2}O{sub 2}, but as far as known there is no report on the combination with ionizing radiation. In some recent studies, the removal of organic pollutants in industrial effluent, such as Benzene, Toluene, and Xylene from petroleum production using ionizing radiation was investigated. It has been ob served that none of the methods can be used individually in wastewater treatment applications with good economics and high degree of energy efficiency. In the present work, the efficiency of ionizing radiation in presence of TiO{sub 2} to treat industrial effluent was evaluated. The main aim to combine these technologies is to improve the efficiency for very hard effluents and to reduce the processing cost for future implementation to large-scale design.

Duarte, C.L.; Oikawa, H.; Mori, M.N.; Sampa, M.H.O.

2004-10-04T23:59:59.000Z

251

Why Sequence Sulfur-Oxidizing Bacteria?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sulfur-Oxidizing Bacteria? Sulfur-Oxidizing Bacteria? Several environmental problems, such as acid rain, biocorrosion, etc., are caused by sulfur compounds, such as sulfur dioxide (SO2) and hydrogen sulfide (H2S). A sustainable process to remove these sulfur compounds is the production of elemental sulfur from H2S-containing gas streams by the use of sulfide-oxidizing bacteria. In this process, H2S is absorbed into the alkaline solution in the scrubber unit, followed by the biological oxidation of H2S to elemental sulfur and the recycling of water. With this two-step process, a variety of gas streams (i.e., natural gas, synthesis gas, biogas, and refinery gas) can be treated. For the treatment of sulfate-containing waste streams, an extra step has to be introduced: the transformation of sulfate into H2S by sulfate-reducing bacteria. In

252

Iridium material for hydrothermal oxidation environments  

DOE Patents [OSTI]

A process for hydrothermal oxidation of combustible materials in which, during at least a part of the oxidation, corrosive material is present and makes contact with at least a portion of the apparatus over a contact area on the apparatus. At least a portion of the contact surface area comprises iridium, iridium oxide, an iridium alloy, or a base metal overlaid with an iridium coating. Iridium has been found to be highly resistant to environments encountered in the process of hydrothermal oxidation. Such environments typically contain greater than 50 mole percent water, together with oxygen, carbon dioxide, and a wide range of acids, bases and salts. Pressures are typically about 27.5 to about 1000 bar while temperatures range as high as 800.degree. C.

Hong, Glenn T. (Tewksbury, MA); Zilberstein, Vladimir A. (Brookline, MA)

1996-01-01T23:59:59.000Z

253

Removing sulphur oxides from a fluid stream  

DOE Patents [OSTI]

A process for removing sulphur oxides from a fluid stream, such as flue gas, comprising: providing a non-aqueous absorption liquid containing at least one hydrophobic amine, the liquid being incompletely miscible with water; treating the fluid stream in an absorption zone with the non-aqueous absorption liquid to transfer at least part of the sulphur oxides into the non-aqueous absorption liquid and to form a sulphur oxide-hydrophobic amine-complex; causing the non-aqueous absorption liquid to be in liquid-liquid contact with an aqueous liquid whereby at least part of the sulphur oxide-hydrophobic amine-complex is hydrolyzed to release the hydrophobic amine and sulphurous hydrolysis products, and at least part of the sulphurous hydrolysis products is transferred into the aqueous liquid; separating the aqueous liquid from the non-aqueous absorption liquid. The process mitigates absorbent degradation problems caused by sulphur dioxide and oxygen in flue gas.

Katz, Torsten; Riemann, Christian; Bartling, Karsten; Rigby, Sean Taylor; Coleman, Luke James Ivor; Lail, Marty Alan

2014-04-08T23:59:59.000Z

254

EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment,  

Broader source: Energy.gov (indexed) [DOE]

336: Ocean Sequestration of Carbon Dioxide Field Experiment, 336: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania SUMMARY This EA evaluates the environmental impacts for the U.S. Department of Energy National Energy Technology Laboratory's proposal to participate with a group of international organizations in an experiment to evaluate the dispersion and diffusion of liquid carbon dioxide droplets in ocean waters. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD May 4, 2001 EA-1336: Finding of No Significant Impact Ocean Sequestration of Carbon Dioxide Field Experiment May 4, 2001 EA-1336: Final Environmental Assessment Ocean Sequestration of Carbon Dioxide Field Experiment

255

Improving Repository Performance by Using DU Dioxide Fill  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DU Dioxide Fill DU Dioxide Fill Improving Repository Performance by Using DU Dioxide Fill Fills may improve repository performance by acting as sacrificial materials, which delay the degradation of SNF uranium dioxide. Because fill and SNF have the same chemical form of uranium (uranium dioxide), the DU dioxide in a repository is the only fill which has the same behavior as that of the SNF. In the natural environment, some uranium ore deposits have remained intact for very long periods of time. The outer parts of the ore deposit degrade while the inner parts of the deposit are protected. The same approach is proposed herein for protecting SNF. The application could use half or more of the DU inventory in the United States. Behavior of Uranium and Potential Behavior of a Waste Package with SNF and Fill

256

Building Technologies Office: Nano-Enabled Titanium Dioxide Ultraviolet  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nano-Enabled Titanium Nano-Enabled Titanium Dioxide Ultraviolet Protective Layers for Cool-Color Roofing Research Project to someone by E-mail Share Building Technologies Office: Nano-Enabled Titanium Dioxide Ultraviolet Protective Layers for Cool-Color Roofing Research Project on Facebook Tweet about Building Technologies Office: Nano-Enabled Titanium Dioxide Ultraviolet Protective Layers for Cool-Color Roofing Research Project on Twitter Bookmark Building Technologies Office: Nano-Enabled Titanium Dioxide Ultraviolet Protective Layers for Cool-Color Roofing Research Project on Google Bookmark Building Technologies Office: Nano-Enabled Titanium Dioxide Ultraviolet Protective Layers for Cool-Color Roofing Research Project on Delicious Rank Building Technologies Office: Nano-Enabled Titanium Dioxide

257

A study of the physical, chemical and biological properties of TiO2 coatings produced by micro-arc oxidation in a Ca–P-based electrolyte  

Science Journals Connector (OSTI)

In this work, a porous and homogeneous titanium dioxide layer was grown on commercially pure titanium substrate using a micro-arc oxidation (MAO) process and Ca–P-based...2 coatings were characterized by X-ray di...

Amanda dos Santos; Joyce R. Araujo…

2014-07-01T23:59:59.000Z

258

MEASURING GASEOUS EMISSIONS FROM STORED PIG SLURRY S. Espagnol1  

E-Print Network [OSTI]

2 MEASURING GASEOUS EMISSIONS FROM STORED PIG SLURRY S. Espagnol1 , L. Loyon2 , F. Guiziou2 , P to measure emissions factors of ammonia (NH3), nitrous oxide (N2O) methane (CH4) and carbon dioxide (CO2) from stored pig slurry and measured the variations of the emissions in time and space. In 2006, dynamic

Boyer, Edmond

259

GISS ICP at Columbia University SSttuuddyyiinngg GGlloobbaall CChhaannggee aanndd tthhee EEnnvviirroonnmmeenntt  

E-Print Network [OSTI]

large quantities of fossil fuels such as petroleum, coal and natural gas. Burning fossil fuels release additional greenhouse gases, such as nitrous oxide, methane and carbon dioxide into the atmosphere storage in the trees. We can study this forest carbon as well, with land-use variations (fire) as we began

260

Biogeosciences, 1, 111, 2005 www.biogeosciences.net/bg/1/1/  

E-Print Network [OSTI]

and upscaling using the DNDC model H. Pathak1,*, C. Li2, and R. Wassmann3 1Unit of Simulation and Informatics) model was evaluated for its ability to simulate methane (CH4), nitrous oxide (N2O) and carbon dioxide/climate/land use database. Continuous flooding of rice fields (42.25 million ha) resulted in annual net emissions

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Environmental costs and benefits of urban forests  

E-Print Network [OSTI]

regulation Nutrient regulation Supporting service Regulating service Energy use Water use Pollutant emissions emissions Energy use Water use #12;Carbon dioxide CO2 H2O Nitrous oxide (N2O) Methane (CH4) Energy #12;Question: Should we plant trees to offset greenhouse gas emissions? Hypothesis: tree planting in cities can

Rose, Michael R.

262

Atmos. Chem. Phys., 10, 59996006, 2010 www.atmos-chem-phys.net/10/5999/2010/  

E-Print Network [OSTI]

of greenhouse gases (GHG) such as carbon dioxide, methane and nitrous oxide, as a result of anthropogenic stratocumulus clouds via injec- tion of cloud condensation nuclei into low-level stratocumu- lus clouds has been investigated by Jones et al. (2009) us- ing one of the models used in the present study. They sug- gest that

Meskhidze, Nicholas

263

An Intercomparison of Ground-Based Solar FTIR Measurements of Atmospheric Gases at Eureka, Canada  

Science Journals Connector (OSTI)

The authors report the results of an intercomparison of vertical column amounts of hydrogen chloride (HCl), hydrogen fluoride (HF), nitrous oxide (N2O), nitric acid (HNO3), methane (CH4), ozone (O3), carbon dioxide (CO2), and nitrogen (N2) ...

C. Paton-Walsh; R. L. Mittermeier; W. Bell; H. Fast; N. B. Jones; A. Meier

2008-11-01T23:59:59.000Z

264

Carbon Dioxide Capture by Absorption with Potassium Carbonate  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Dioxide Capture by Absorption Carbon Dioxide Capture by Absorption with Potassium Carbonate Background Although alkanolamine solvents, such as monoethanolamine (MEA), and solvent blends have been developed as commercially-viable options for the absorption of carbon dioxide (CO 2 ) from waste gases, natural gas, and hydrogen streams, further process improvements are required to cost-effectively capture CO 2 from power plant flue gas. The promotion of potassium carbonate (K

265

Failure of ozone and nitrogen dioxide to enhance lung tumor development in hamsters  

SciTech Connect (OSTI)

We tested the hypothesis that the two common oxidant air pollutants, ozone and nitrogen dioxide, modulate the development of respiratory tract tumors in Syrian golden hamsters. The animals received subcutaneous injections of the carcinogen diethylnitrosamine (20 mg/kg) twice a week while being exposed continuously to an atmosphere of 0.8 parts per million (ppm)* of ozone or 15 ppm of nitrogen dioxide. Animals were killed 16 weeks or 24 to 32 weeks after the beginning of the treatment. Ozone delayed the appearance of tracheal tumors and reduced the incidence of tumors in the lung periphery. A suspected neuroendocrine differentiation of those lung tumors could not be established by immunocytochemistry due to overfixation of tissues. On the other hand, ozone seemed to mitigate development of hepatotoxic lesions mediated by diethylnitrosamine. In animals treated with diethylnitrosamine and exposed to nitrogen dioxide, fewer tracheal tumors and no lung tumors were found. Only a few lung tumors were produced in animals treated with diethylnitrosamine and kept in an atmosphere of 65% oxygen. The previously observed neuroendocrine nature of tumors induced by simultaneous exposure to diethylnitrosamine and hyperoxia could not be established because the long fixation of tissues precluded immunocytochemical stains. Animals treated with diethylnitrosamine and kept in filtered air while being housed in wire-mesh cages developed fewer lung tumors than animals given the same treatment and kept on conventional bedding in shoebox cages. Although all inhalants tested are known to produce substantial cell proliferation in the respiratory tract, it was not possible to document whether this would enhance lung tumor development. The role of the two common air pollutants, ozone and nitrogen dioxide, as possible additional risks in the pathogenesis of lung cancer in animals continues to remain uncertain.

Witschi, H.; Breider, M.A.; Schuller, H.M. (Univ. of California, Davis, CA (United States))

1993-09-01T23:59:59.000Z

266

Polyamine-Tethered Porous Polymer Networks for Carbon Dioxide...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Polyamine-Tethered Porous Polymer Networks for Carbon Dioxide Capture from Flue Gas Previous Next List Weigang Lu, Julian P. Sculley, Daqiang Yuan, Rajamani Krishna, Zhangwen Wei,...

267

Carbon Dioxide Capture and Storage Demonstration in Developing...  

Open Energy Info (EERE)

Key Policy Issues and Barriers Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Carbon Dioxide Capture and Storage Demonstration in Developing Countries: Analysis of Key...

268

Synthesis, Structure, and Carbon Dioxide Capture Properties of...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Synthesis, Structure, and Carbon Dioxide Capture Properties of Zeolitic Imidazolate Frameworks Previous Next List Anh Phan, Christian J. Doonan, Fernando J. Uribe-Romo, Carolyn B....

269

Dissociation of carbon dioxide in atmospheric pressure microchannel plasma devices.  

E-Print Network [OSTI]

??Plasma discharge of carbon dioxide at atmospheric pressure was successfully demonstrated in microchannel plasma devices at breakdown voltages lower than 1 kVRMS. Optical emissions of… (more)

Oh, Taegon

2013-01-01T23:59:59.000Z

270

Carbon dioxide sequestration underground laser based detection system.  

E-Print Network [OSTI]

??Carbon dioxide (CO 2) is a known greenhouse gas. Due to the burning of fossil fuels by industrial and power plants the atmospheric concentration of… (more)

Barr, Jamie Lynn.

2009-01-01T23:59:59.000Z

271

Los Alamos probes mysteries of uranium dioxide's thermal conductivity  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of nuclear materials into the hands of terrorists and other non-state actors. The depleted uranium dioxide crystals used for the thermal conductivity measurements were...

272

Carbon dioxide absorbent and method of using the same  

SciTech Connect (OSTI)

In accordance with one aspect, the present invention provides a composition which contains the amino-siloxane structures I, or III, as described herein. The composition is useful for the capture of carbon dioxide from process streams. In addition, the present invention provides methods of preparing the amino-siloxane composition. Another aspect of the present invention provides methods for reducing the amount of carbon dioxide in a process stream employing the amino-siloxane compositions of the invention, as species which react with carbon dioxide to form an adduct with carbon dioxide.

Perry, Robert James; O'Brien, Michael Joseph

2014-06-10T23:59:59.000Z

273

Per Capita Carbon Dioxide Emissions: Convergence or Divergence?  

Science Journals Connector (OSTI)

Understanding and considering the distribution of per capita carbon dioxide (CO2) emissions is important in designing international climate change ... incentives for participation. I evaluate historic internation...

Joseph E. Aldy

2006-04-01T23:59:59.000Z

274

Neutron reflectometry characterization of interface width between sol-gel titanium dioxide and silicon dioxide thin films  

SciTech Connect (OSTI)

Neutron reflectometry (NR) was used to directly measure the interface width between a titanium dioxide and a silicon dioxide film deposited by sol-gel processing. In a bilayer heated to 450 C, NR measurements showed that the interface width is 0.8 nm. This width is the same as the roughness of a sol-gel silicon dioxide surface after the same heat treatment, suggesting no interdiffusion or mixing at the bilayer interface.

Keddie, J.L.; Norton, L.J.; Kramer, E.J.; Giannelis, E.P. (Cornell Univ., Ithaca, NY (United States). Dept. of Materials Science and Engineering)

1993-10-01T23:59:59.000Z

275

Method for extracting and sequestering carbon dioxide  

DOE Patents [OSTI]

A method and apparatus to extract and sequester carbon dioxide (CO.sub.2) from a stream or volume of gas wherein said method and apparatus hydrates CO.sub.2, and reacts the resulting carbonic acid with carbonate. Suitable carbonates include, but are not limited to, carbonates of alkali metals and alkaline earth metals, preferably carbonates of calcium and magnesium. Waste products are metal cations and bicarbonate in solution or dehydrated metal salts, which when disposed of in a large body of water provide an effective way of sequestering CO.sub.2 from a gaseous environment.

Rau, Gregory H. (Castro Valley, CA); Caldeira, Kenneth G. (Livermore, CA)

2005-05-10T23:59:59.000Z

276

Capture of carbon dioxide by hybrid sorption  

DOE Patents [OSTI]

A composition, process and system for capturing carbon dioxide from a combustion gas stream. The composition has a particulate porous support medium that has a high volume of pores, an alkaline component distributed within the pores and on the surface of the support medium, and water adsorbed on the alkaline component, wherein the proportion of water in the composition is between about 5% and about 35% by weight of the composition. The process and system contemplates contacting the sorbent and the flowing gas stream together at a temperature and for a time such that some water remains adsorbed in the alkaline component when the contact of the sorbent with the flowing gas ceases.

Srinivasachar, Srivats

2014-09-23T23:59:59.000Z

277

A Vortex Contactor for Carbon Dioxide Separations  

SciTech Connect (OSTI)

Many analysts identify carbon dioxide (CO2) capture and separation as a major roadblock in efforts to cost effectively mitigate greenhouse gas emissions via sequestration. An assessment 4 conducted by the International Energy Agency (IEA) Greenhouse Gas Research and Development Programme cited separation costs from $35 to $264 per tonne of CO2 avoided for a conventional coal fired power plant utilizing existing capture technologies. Because these costs equate to a greater than 40% increase in current power generation rates, it appears obvious that a significant improvement in CO2 separation technology is required if a negative impact on the world economy is to be avoided.

Raterman, Kevin Thomas; Mc Kellar, Michael George; Turner, Terry Donald; Podgorney, Anna Kristine; Stacey, Douglas Edwin; Stokes, B.; Vranicar, J.

2001-05-01T23:59:59.000Z

278

The effect of phosphorus on the formation of tungsten dioxide: A novel morphology  

SciTech Connect (OSTI)

The industrial production of tungsten is based on the hydrogen reduction of tungsten oxides, ammonium paratungstate (APT) or ammonium tungsten oxide bronze (ATOB). Hydrogen reduction is applied when high purity tungsten is required and when the addition of other elements or compounds (dopants) is desired for modification of the properties of the metal powder. The first stage of the reduction is finished when WO{sub 2} is formed and it seems that the efficient incorporation of the additives starts mainly at this reduction step. The study reported here was undertaken to investigate the effect of phosphorus dope on the morphology of the intermediate tungsten dioxide and analyze its influence on the grain size of the final tungsten metal powder. The authors observed star shaped morphology of WO{sub 2}, a structure which has not been describe in the literature. Contrary to the well-known cauliflower shaped tungsten dioxide, these starlets are not pseudomorphic to the initial ATOB particles; they grow separately and have a great influence on the grain size of the final metal powder.

Hegedus, E.; Neugebauer, J. [Hungarian Academy of Sciences, Budapest (Hungary). Research Inst. for Technical Physics and Materials Science] [Hungarian Academy of Sciences, Budapest (Hungary). Research Inst. for Technical Physics and Materials Science

1999-02-19T23:59:59.000Z

279

Carbon dioxide capture and storage: Seven years after the IPCC special report  

Science Journals Connector (OSTI)

Carbon dioxide capture and storage (CCS) entails separating carbon dioxide from coal-, biomass- or gas ... or other large industrial sources, transporting the carbon dioxide by pipeline, injecting it deep undergr...

Haroon Kheshgi; Heleen de Coninck…

2012-08-01T23:59:59.000Z

280

Retrieval of ozone and nitrogen dioxide concentrations from Stratospheric Aerosol and Gas Experiment III (SAGE III)  

E-Print Network [OSTI]

Retrieval of ozone and nitrogen dioxide concentrations from Stratospheric Aerosol and Gas extinction. We retrieve ozone and nitrogen dioxide number densities and aerosol extinction from transmission), Retrieval of ozone and nitrogen dioxide concentrations from Stratospheric Aerosol and Gas Experiment III

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates  

E-Print Network [OSTI]

Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates #12 Satellite observations of ozone and nitrogen dioxide: from retrievals to emission es- timates / by Bas Subject headings: satellite retrieval / nitrogen dioxide / ozone / air pollution / emis- sion estimates

Haak, Hein

282

Model Documentation for the MiniCAM  

SciTech Connect (OSTI)

The MiniCAM, short for the Mini-Climate Assessment Model, is an integrated assessment model of moderate complexity focused on energy and agriculture sectors. The model produces emissions of greenhouse gases (carbon dioxide, methane and nitrous oxide) and other radiatively important substances such as sulfur dioxide. Through incorporation of the simple climate model MAGICC, the consequences of these emissions for climate change and sea-level rise can be examined. The MiniCAM is designed to be fast and flexible.

Brenkert, Antoinette L.; Smith, Steven J.; Kim, Son H.; Pitcher, Hugh M.

2003-07-17T23:59:59.000Z

283

Carbon dioxide adsorption and methanation on ruthenium  

SciTech Connect (OSTI)

The adsorption and methanation of carbon dioxide on a ruthenium-silica catalyst were studied using temperature-programmed desorption (TPD) and temperature-programmed reaction (TPR). Carbon dioxide adsorption was found to be activated; CO/sub 2/ adsorption increased significantly as the temperature increased from 298 to 435 K. During adsorption, some of the CO/sub 2/ dissociated to carbon monoxide and oxygen; upon hydrogen exposure at room temperature, the oxygen reacted to water. Methanation of adsorbed CO and of adsorbed CO/sub 2/, using TPR in flowing hydrogen, yielded a CH/sub 4/ peak with a peak temperature of 459 K for both adsorbates, indicating that both reactions follow the same mechanism after adsorption. This peak temperature did not change with initial surface coverage of CO, indicating that methanation is first order in CO coverage. The desorption and reaction spectra for Ru/SiO/sub 2/ were similar to those previously obtained for Ni/SiO/sub 2/, but both CO/sub 2/ formation and CH/sub 4/ formation proceeded faster on Ru. Also, the details of CO desorption and the changes in CO/sub 2/ and CO desorptions with initial coverage were different on the two metals. 5 figures, 3 tables.

Zagli, E.; Falconer, J.L.

1981-05-01T23:59:59.000Z

284

EIA - International Energy Outlook 2009-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Related Carbon Dioxide Emissions Energy-Related Carbon Dioxide Emissions International Energy Outlook 2009 Chapter 8 - Energy-Related Carbon Dioxide Emissions In 2006, non-OECD energy-related emissions of carbon dioxide exceeded OECD emissions by 14 percent. In 2030, energy-related carbon dioxide emissions from the non-OECD countries are projected to exceed those from the OECD countries by 77 percent. Figure 80. World Energy-Related Carbon Dioxide Emissions, 2006-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 81. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 82. U.S. Energy-Related Carbon Dioxide Emissions by Fuel in IEO2008 and IEO2009, 2006, 2015, and 2030 (billion metric tons). Need help, contact the National Energy Information Center at 202-586-8800.

285

Carbon Dioxide Capture DOI: 10.1002/anie.200902836  

E-Print Network [OSTI]

Carbon Dioxide Capture DOI: 10.1002/anie.200902836 Highly Selective CO2 Capture in Flexible 3D Coordination Polymer Networks** Hye-Sun Choi and Myunghyun Paik Suh* Carbon dioxide capture has been warming, and the development of efficient methods for capturing CO2 from industrial flue gas has become

Paik Suh, Myunghyun

286

Carbon Dioxide Capture by Chemical Absorption: A Solvent Comparison Study  

E-Print Network [OSTI]

1 Carbon Dioxide Capture by Chemical Absorption: A Solvent Comparison Study by Anusha Kothandaraman Students #12;2 #12;3 Carbon Dioxide Capture by Chemical Absorption: A Solvent Comparison Study by Anusha with electricity generation accounting for 40% of the total1 . Carbon capture and sequestration (CCS) is one

287

Pilot Plant Study of Carbon Dioxide Capture by Aqueous Monoethanolamine  

E-Print Network [OSTI]

i Pilot Plant Study of Carbon Dioxide Capture by Aqueous Monoethanolamine Topical Report Prepared Pilot Plant Study of Carbon Dioxide Capture by Aqueous Monoethanolamine Ross Edward Dugas, M capture using monoethanolamine (MEA). MEA is an appropriate choice for a baseline study since

Rochelle, Gary T.

288

Carbon Dioxide Capture DOI: 10.1002/anie.201000431  

E-Print Network [OSTI]

Carbon Dioxide Capture DOI: 10.1002/anie.201000431 Carbon Dioxide Capture: Prospects for New] Carbon capture and storage (CCS) schemes embody a group of technologies for the capture of CO2 from power to the atmosphere could be reduced by 80­90% for a modern conventional power plant equipped with carbon capture

289

Exhaust Gas Sensor Based On Tin Dioxide For Automotive Application  

E-Print Network [OSTI]

Exhaust Gas Sensor Based On Tin Dioxide For Automotive Application Arthur VALLERON a,b , Christophe, Engineering Materials Department The aim of this paper is to investigate the potentialities of gas sensor based on semi-conductor for exhaust gas automotive application. The sensing element is a tin dioxide

Paris-Sud XI, Université de

290

Carbon dioxide sequestration in concrete in different curing environments  

E-Print Network [OSTI]

Carbon dioxide sequestration in concrete in different curing environments Y.-m. Chun, T.R. Naik, USA ABSTRACT: This paper summarizes the results of an investigation on carbon dioxide (CO2) sequestration in concrete. Concrete mixtures were not air entrained. Concrete mixtures were made containing

Wisconsin-Milwaukee, University of

291

Method for synthesis of titanium dioxide nanotubes using ionic liquids  

SciTech Connect (OSTI)

The invention is directed to a method for producing titanium dioxide nanotubes, the method comprising anodizing titanium metal in contact with an electrolytic medium containing an ionic liquid. The invention is also directed to the resulting titanium dioxide nanotubes, as well as devices incorporating the nanotubes, such as photovoltaic devices, hydrogen generation devices, and hydrogen detection devices.

Qu, Jun; Luo, Huimin; Dai, Sheng

2013-11-19T23:59:59.000Z

292

Method for Increasing Atmospheric Carbon Dioxide in Bacteriological Incubators  

Science Journals Connector (OSTI)

...Method for Increasing Atmospheric Carbon Dioxide in...Method for Increasing Atmospheric Carbon Dioxide in...experience with water-jacket incubators...that the area of water used be the maximum...does not create condensation. For culturing...was made of the recovery of Mycobacterium...

Alfred G. Karslon; Patrick E. Caskey

1969-07-01T23:59:59.000Z

293

Carbon Dioxide, Global Warming, and Michael Crichton's "State of Fear"  

E-Print Network [OSTI]

Carbon Dioxide, Global Warming, and Michael Crichton's "State of Fear" Bert W. Rust Mathematical- tioned the connection between global warming and increasing atmospheric carbon dioxide by pointing out of these plots to global warming have spilled over to the real world, inviting both praise [4, 17] and scorn [15

Rust, Bert W.

294

The surface science of titanium dioxide Ulrike Diebold*  

E-Print Network [OSTI]

The surface science of titanium dioxide Ulrike Diebold* Department of Physics, Tulane University, New Orleans, LA 70118, USA Manuscript received in final form 7 October 2002 Abstract Titanium dioxide is reviewed on the adsorption and reaction of a wide variety of inorganic molecules (H2, O2, H2O, CO, CO2, N2

Diebold, Ulrike

295

Absorption of Carbon Dioxide in Aqueous Piperazine/Methyldiethanolamine  

E-Print Network [OSTI]

Absorption of Carbon Dioxide in Aqueous Piperazine/Methyldiethanolamine Sanjay Bishnoi and Gary T dioxide absorption in 0.6 M piperazine PZ r4 M methyldiethanolamine ( )MDEA was measured in a wetted wall loading. The absorption rate did not follow pseudo first-order beha®ior except at ®ery low loading. All

Rochelle, Gary T.

296

Carbon dioxide emission during forest fires ignited by lightning  

E-Print Network [OSTI]

In this paper we developed the model for the carbon dioxide emission from forest fire. The master equation for the spreading of the carbon dioxide to atmosphere is the hyperbolic diffusion equation. In the paper we study forest fire ignited by lightning. In that case the fores fire has the well defined front which propagates with finite velocity.

Magdalena Pelc; Radoslaw Osuch

2009-03-31T23:59:59.000Z

297

Thermodynamic Analysis of Syngas Production via the Solar Thermochemical Cerium Oxide Redox Cycle with Methane-Driven Reduction  

Science Journals Connector (OSTI)

Thermodynamic Analysis of Syngas Production via the Solar Thermochemical Cerium Oxide Redox Cycle with Methane-Driven Reduction ... Of particular interest is the storage of solar energy in chemical bonds via the splitting of water and carbon dioxide to produce hydrogen and carbon monoxide, referred to collectively as syngas. ... The coupled cycle produces high-quality syngas by the partial oxidation of methane in the ceria reduction step in addition to the carbon monoxide and hydrogen produced by splitting carbon dioxide and water in the oxidation step. ...

Peter T. Krenzke; Jane H. Davidson

2014-05-16T23:59:59.000Z

298

ORNL/CDIAC-143 CARBON DIOXIDE, HYDROGRAPHIC, AND CHEMICAL DATA OBTAINED DURING THE  

E-Print Network [OSTI]

Kozyr Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee, U Prepared by the Carbon Dioxide Information Analysis Center OAK RIDGE NATIONAL LABORATORY Oak Ridge

299

Faraday rotation spectroscopy of nitrogen dioxide based on a widely tunable external cavity quantum cascade laser  

E-Print Network [OSTI]

Faraday rotation spectroscopy of nitrogen dioxide based on a widely tunable external cavity quantum: Faraday Rotation Spectroscopy, external-cavity quantum cascade laser, nitrogen dioxide, trace

300

Synchrotron X-ray Studies of Super-critical Carbon Dioxide /...  

Broader source: Energy.gov (indexed) [DOE]

Synchrotron X-ray Studies of Super-critical Carbon Dioxide Reservoir Rock Interfaces Synchrotron X-ray Studies of Super-critical Carbon Dioxide Reservoir Rock Interfaces...

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Carbon Dioxide Heat Pump Water Heater Research Project | Department of  

Broader source: Energy.gov (indexed) [DOE]

Emerging Technologies » Carbon Dioxide Heat Pump Water Heater Emerging Technologies » Carbon Dioxide Heat Pump Water Heater Research Project Carbon Dioxide Heat Pump Water Heater Research Project The U.S. Department of Energy is currently conducting research into carbon dioxide (CO2) heat pump water heaters. This project will employ innovative techniques to adapt water heating technology to meet U.S. market requirements, including specifications, cost, and performance targets. Carbon dioxide is a refrigerant with a global warming potential (GWP) of 1. The CO2 heat pump water heater research seeks to develop an improved life cycle climate performance compared to conventional refrigerants. For example, R134a, another type of refrigerant, has a GWP of 1,300. Project Description This project seeks to develop a CO2-based heat pump water heater (HPWH)

302

Microbial Sequestration of Carbon Dioxide and Subsequent Conversion to Methane  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sequestration of Carbon Dioxide and Subsequent Sequestration of Carbon Dioxide and Subsequent conversion to Methane By Nirupam Pal Associate Professor California Polytechnic State University San Luis Obispo, CA 93401 Email : npal@calpoly.edu Phone : (805) 756-1355 INTRODUCTION The rising level of carbon dioxide in the atmosphere has been of growing concern in recent years. The increasing levels of carbon dioxide, the most dominant component of greenhouse gases, contribute to global warming and changing global weather patterns which could potentially lead to catastrophic events that could threaten life in every form on this planet. The level of carbon dioxide in the worlds atmosphere has increased from about 280 ppm in 1850 to the current level of approximately 350 ppm. There are several natural sources and sinks of

303

DOE Report Assesses Potential for Carbon Dioxide Storage Beneath Federal  

Broader source: Energy.gov (indexed) [DOE]

Report Assesses Potential for Carbon Dioxide Storage Beneath Report Assesses Potential for Carbon Dioxide Storage Beneath Federal Lands DOE Report Assesses Potential for Carbon Dioxide Storage Beneath Federal Lands May 14, 2009 - 1:00pm Addthis Washington, DC - As a complementary document to the U.S. Department of Energy's Carbon Sequestration Atlas of the United States and Canada issued in November 2008, the Office of Fossil Energy's National Energy Technology Laboratory has now released a report that provides an initial estimate of the potential to store carbon dioxide (CO2) underneath millions of acres of Federal lands. The report, Storage of Captured Carbon Dioxide Beneath Federal Lands, estimates and characterizes the storage potential that lies beneath some of the more than 400 million acres of Federal land available for lease.

304

Innovative Concepts for Beneficial Reuse of Carbon Dioxide | Department of  

Broader source: Energy.gov (indexed) [DOE]

Innovative Concepts for Beneficial Reuse of Carbon Dioxide Innovative Concepts for Beneficial Reuse of Carbon Dioxide Innovative Concepts for Beneficial Reuse of Carbon Dioxide Funding for 12 projects to test innovative concepts for the beneficial use of carbon dioxide (CO2) was announced by the U.S. Department of Energy. The awards are part of $1.4 billion in funding from the American Recovery and Reinvestment Act (ARRA) for projects that will capture carbon dioxide from industrial sources. These 12 projects will engage in a first phase feasibility study that will examine beneficial uses in a variety of ways, including mineralization to carbonates directly through conversion of CO2 in flue gas; the use of CO2 from power plants or industrial applications to grow algae/biomass; and conversion of CO2 to fuels and chemicals. Each project will be subject to

305

Carbon dioxide absorbent and method of using the same  

DOE Patents [OSTI]

In accordance with one aspect, the present invention provides an amino-siloxane composition comprising at least one of structures I, II, III, IV or V said compositions being useful for the capture of carbon dioxide from gas streams such as power plant flue gases. In addition, the present invention provides methods of preparing the amino-siloxane compositions are provided. Also provided are methods for reducing the amount of carbon dioxide in a process stream employing the amino-siloxane compositions of the invention as species which react with carbon dioxide to form an adduct with carbon dioxide. The reaction of the amino-siloxane compositions provided by the present invention with carbon dioxide is reversible and thus, the method provides for multicycle use of said compositions.

Perry, Robert James (Niskayuna, NY); Lewis, Larry Neil (Scotia, NY); O'Brien, Michael Joseph (Clifton Park, NY); Soloveichik, Grigorii Lev (Latham, NY); Kniajanski, Sergei (Clifton Park, NY); Lam, Tunchiao Hubert (Clifton Park, NY); Lee, Julia Lam (Niskayuna, NY); Rubinsztajn, Malgorzata Iwona (Ballston Spa, NY)

2011-10-04T23:59:59.000Z

306

Haverford Researchers Create Carbon Dioxide-Separating Polymer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Haverford College Haverford College Researchers Create Carbon Dioxide-Separating Polymer Haverford College Researchers Create Carbon Dioxide-Separating Polymer August 1, 2012 | Tags: Basic Energy Sciences (BES), Chemistry, Hopper Rebecca Raber, rraber@haverford.edu, +1 610 896 1038 gtoc.jpg Carbon dioxide gas separation is important for many environmental and energy applications. Molecular dynamics simulations are used to characterize a two-dimensional hydrocarbon polymer, PG-ES1, that uses a combination of surface adsorption and narrow pores to separate carbon dioxide from nitrogen, oxygen, and methane gases. Image by Joshua Schrier, Haverford College. Carbon dioxide is the primary greenhouse gas emitted through human activities, such as the combustion of fossil fuels for energy and

307

Fuel electrode containing pre-sintered nickel/zirconia for a solid oxide fuel cell  

DOE Patents [OSTI]

A fuel cell structure (2) is provided, having a pre-sintered nickel-zirconia fuel electrode (6) and an air electrode (4), with a ceramic electrolyte (5) disposed between the electrodes, where the pre-sintered fuel electrode (6) contains particles selected from the group consisting of nickel oxide, cobalt and cerium dioxide particles and mixtures thereof, and titanium dioxide particles, within a matrix of yttria-stabilized zirconia and spaced-apart filamentary nickel strings having a chain structure, and where the fuel electrode can be sintered to provide an active solid oxide fuel cell.

Ruka, Roswell J. (Pittsburgh, PA); Vora, Shailesh D. (Monroeville, PA)

2001-01-01T23:59:59.000Z

308

Effect of surfactants on the interfacial tension and emulsion formation between water and carbon dioxide  

SciTech Connect (OSTI)

The lowering of the interfacial tension ({gamma}) between water and carbon dioxide by various classes of surfactants is reported and used to interpret complementary measurements of the capacity, stability, and average drop size of water-in-CO{sub 2} emulsions. {gamma} is lowered from {approximately}20 to {approximately}2 mN/m for the best poly(propylene oxide)-b-poly(ethylene oxide)-b-poly(propylene oxide) (PPO-b-PEO-b-PPO) and PeO-b-PPO-b-PEO Pluronic triblock copolymers, 1.4 mN/m for a poly(butylene oxide)-b-PEO copolymer, 0.8 mN/m for a perfluoropolyether (PEPE) ammonium carboxylate and 0.2 mN/m for PDMS{sub 24}-g-EO{sub 22}. The hydrophilic-CO{sub 2}-philic balance (HCB) of the triblock Pluronic and PDMS-g-PEO-PPO surfactants is characterized by the CO{sub 2}-to-water distribution coefficient and V-shaped plots of log {gamma} vs wt % EO. A minimum in {gamma} is observed for the optimum HCB. As the CO{sub 2}-philicity of the surfactant tail is increased, the molecular weight of the hydrophilic segment increases for an optimum HCB. The stronger interactions on both sides of the interface lead to a lower {gamma}. Consequently, more water was emulsified for the PDMS-based copolymers than either the PPO- or PBO-based copolymers.

Rocha, S.R.P. da; Harrison, K.L.; Johnston, K.P. [Univ. of Texas, Austin, TX (United States). Dept. of Chemical Engineering] [Univ. of Texas, Austin, TX (United States). Dept. of Chemical Engineering

1999-01-19T23:59:59.000Z

309

Method and apparatus for converting hydrocarbon fuel into hydrogen gas and carbon dioxide  

DOE Patents [OSTI]

An apparatus and a method are disclosed for converting hydrocarbon fuel or an alcohol into hydrogen gas and carbon dioxide. The apparatus includes a first vessel having a partial oxidation reaction zone and a separate steam reforming reaction zone that is distinct from the partial oxidation reaction zone. The first vessel has a first vessel inlet at the partial oxidation reaction zone and a first vessel outlet at the steam reforming zone. The reformer also includes a helical tube extending about the first vessel. The helical tube has a first end connected to an oxygen-containing source and a second end connected to the first vessel at the partial oxidation reaction zone. Oxygen gas from an oxygen-containing source can be directed through the helical tube to the first vessel. A second vessel having a second vessel inlet and second vessel outlet is annularly disposed about the first vessel. The helical tube is disposed between the first vessel and the second vessel and gases from the first vessel can be directed through second vessel.

Clawson, Lawrence G. (Dover, MA); Mitchell, William L. (Belmont, MA); Bentley, Jeffrey M. (Westford, MA); Thijssen, Johannes H.J. (Cambridge, MA)

2000-01-01T23:59:59.000Z

310

Method for fluorination of uranium oxide  

DOE Patents [OSTI]

Highly pure uranium hexafluoride is made from uranium oxide and fluorine. The uranium oxide, which includes UO.sub.3, UO.sub.2, U.sub.3 O.sub.8 and mixtures thereof, is introduced together with a small amount of a fluorine-reactive substance, selected from alkali chlorides, silicon dioxide, silicic acid, ferric oxide, and bromine, into a constant volume reaction zone. Sufficient fluorine is charged into the zone at a temperature below approximately 0.degree. C. to provide an initial pressure of at least approximately 600 lbs/sq. in. at the ambient atmospheric temperature. The temperature is then allowed to rise in the reaction zone until reaction occurs.

Petit, George S. (Oak Ridge, TN)

1987-01-01T23:59:59.000Z

311

Nitrogen dioxide and respiratory illness in children. Part II: Assessment of exposure to nitrogen dioxide  

SciTech Connect (OSTI)

Repeated measurements of nitrogen dioxide were obtained from 1988 to 1991 in the homes of 1,205 infants living in Albuquerque, NM. Passive diffusion samplers were used to obtain a series of two-week integrated measurements from the home of each infant for use in a cohort study of the relation of residential exposure to nitrogen dioxide and respiratory illnesses. Information on stove use and time spent inside the residence was collected at two-week and two-month intervals, respectively. During the winter, in the bedrooms of homes with gas cooking stoves, mean nitrogen dioxide concentrations were 21 parts per billion (ppb); mean concentrations in the living room and kitchen were 29 ppb and 34 ppb, respectively. In homes with electric cooking stoves, the mean bedroom concentration was 7 ppb during the winter. Lower indoor concentrations were observed during the summer in homes with both gas and electric stoves. On average, infants spent approximately 12.3 hours per day in their bedrooms, 7.3 hours in the living rooms, 35 minutes in the kitchens, and 3.8 hours out of their homes. (As a condition of participation, none of the infants spent more than 20 hours per week in day care outside of their homes). The mean time infants spent in the kitchen during cooking was approximately nine minutes per day. We tested whether exposures of infants living in homes with gas stoves could be reasonably estimated by measurements in the bedroom in comparison with time-weighted average concentrations based on time-activity data and simultaneous nitrogen dioxide measurements in the kitchen, living room, and bedroom. In 1,937 two-week intervals from 587 infants, 90% of time-weighted exposure (on the three-level classification used in this study) estimates were in agreement with estimates based on bedroom concentrations alone.

Lambert, W.E.; Samet, J.M.; Hunt, W.C.; Skipper, B.J.; Schwab, M.; Spengler, J.D. (Univ. of New Mexico Medical Center, Albuquerque (United States))

1993-06-01T23:59:59.000Z

312

Layered solid sorbents for carbon dioxide capture  

DOE Patents [OSTI]

A solid sorbent for the capture and the transport of carbon dioxide gas is provided having at least one first layer of a positively charged material that is polyethylenimine or poly(allylamine hydrochloride), that captures at least a portion of the gas, and at least one second layer of a negatively charged material that is polystyrenesulfonate or poly(acryclic acid), that transports the gas, wherein the second layer of material is in juxtaposition to, attached to, or crosslinked with the first layer for forming at least one bilayer, and a solid substrate support having a porous surface, wherein one or more of the bilayers is/are deposited on the surface of and/or within the solid substrate. A method of preparing and using the solid sorbent is provided.

Li, Bingyun; Jiang, Bingbing; Gray, McMahan L; Fauth, Daniel J; Pennline, Henry W; Richards, George A

2014-11-18T23:59:59.000Z

313

The lifetime of excess atmospheric carbon dioxide  

SciTech Connect (OSTI)

Since the beginning of the industrial revolution human activity has significantly altered biogeochemical cycling on a global scale. The uncertainties of future climate change rests partly on issues of physical-climate system dynamics and their representation in general circulation models. However understanding the carbon cycle is a key to comprehending the changing terrestrial biosphere and to developing a reasonable range of future concentrations of greenhouse gases. The authors look at correction of model uncertainties in the examination of the lifetime of carbon dioxide. The two difficulties analysed are as follows: (1) most model-derived estimates of the relaxation of the concentration of CO2 reveal a function which is not always well approximated by weighted sums of exponentials; (2) the function c(t) is quite sensitive to assumptions about the terrestrial biosphere and the relaxation experiment. 51 refs., 15 figs., 7 tabs.

Moore, B. III; Braswell, B.H. (Univ. of New Hampshire, Durham, NH (United States))

1994-03-01T23:59:59.000Z

314

Intraosseous Venography with Carbon Dioxide in Percutaneous Vertebroplasty: Carbon Dioxide Retention in Renal Veins  

SciTech Connect (OSTI)

The objective of the present study was to determine the frequency of gas retention in the renal vein following carbon dioxide intraosseous venography in the prone position and, while citing references, to examine its onset mechanisms. All percutaneous vertebroplasties performed at our hospital from January to December 2005 were registered and retrospectively analyzed. Of 43 registered procedures treating 79 vertebrae, 28 procedures treating 54 vertebrae were analyzed. Vertebral intraosseous venography was performed using carbon dioxide as a contrast agent in all percutaneous vertebroplasty procedures. In preoperative and postoperative vertebral CT, gas retention in the renal vein and other areas was assessed. Preoperative CT did not show gas retention (0/28 procedures; 0%). Postoperative CT confirmed gas retention in the renal vein in 10 of the 28 procedures (35.7%). Gas retention was seen in the right renal vein in 8 procedures (28.6%), in the left renal vein in 5 procedures (17.9%), in the left and right renal veins in 3 procedures (10.7%), in vertebrae in 22 procedures (78.6%), in the soft tissue around vertebrae in 14 procedures (50.0%), in the spinal canal in 12 procedures (42.9%), and in the subcutaneous tissue in 5 procedures (17.9%). In conclusion, in our study, carbon dioxide gas injected into the vertebra frequently reached and remained in the renal vein.

Komemushi, Atsushi, E-mail: kome64@yo.rim.or.jp; Tanigawa, Noboru; Kariya, Shuji; Kojima, Hiroyuki; Shomura, Yuzo; Tokuda, Takanori; Nomura, Motoo; Terada, Jiro; Kamata, Minoru; Sawada, Satoshi [Kansai Medical University, Department of Radiology (Japan)

2008-11-15T23:59:59.000Z

315

Coiled tubing drilling with supercritical carbon dioxide  

DOE Patents [OSTI]

A method for increasing the efficiency of drilling operations by using a drilling fluid material that exists as supercritical fluid or a dense gas at temperature and pressure conditions existing at a drill site. The material can be used to reduce mechanical drilling forces, to remove cuttings, or to jet erode a substrate. In one embodiment, carbon dioxide (CO.sub.2) is used as the material for drilling within wells in the earth, where the normal temperature and pressure conditions cause CO.sub.2 to exist as a supercritical fluid. Supercritical carbon dioxide (SC--CO.sub.2) is preferably used with coiled tube (CT) drilling equipment. The very low viscosity SC--CO.sub.2 provides efficient cooling of the drill head, and efficient cuttings removal. Further, the diffusivity of SC--CO.sub.2 within the pores of petroleum formations is significantly higher than that of water, making jet erosion using SC--CO.sub.2 much more effective than water jet erosion. SC--CO.sub.2 jets can be used to assist mechanical drilling, for erosion drilling, or for scale removal. A choke manifold at the well head or mud cap drilling equipment can be used to control the pressure within the borehole, to ensure that the temperature and pressure conditions necessary for CO.sub.2 to exist as either a supercritical fluid or a dense gas occur at the drill site. Spent CO.sub.2 can be vented to the atmosphere, collected for reuse, or directed into the formation to aid in the recovery of petroleum.

Kolle , Jack J. (Seattle, WA)

2002-01-01T23:59:59.000Z

316

Estimated Carbon Dioxide Emissions in 2008: United States  

SciTech Connect (OSTI)

Flow charts depicting carbon dioxide emissions in the United States have been constructed from publicly available data and estimates of state-level energy use patterns. Approximately 5,800 million metric tons of carbon dioxide were emitted throughout the United States for use in power production, residential, commercial, industrial, and transportation applications in 2008. Carbon dioxide is emitted from the use of three major energy resources: natural gas, coal, and petroleum. The flow patterns are represented in a compact 'visual atlas' of 52 state-level (all 50 states, the District of Columbia, and one national) carbon dioxide flow charts representing a comprehensive systems view of national CO{sub 2} emissions. Lawrence Livermore National Lab (LLNL) has published flow charts (also referred to as 'Sankey Diagrams') of important national commodities since the early 1970s. The most widely recognized of these charts is the U.S. energy flow chart (http://flowcharts.llnl.gov). LLNL has also published charts depicting carbon (or carbon dioxide potential) flow and water flow at the national level as well as energy, carbon, and water flows at the international, state, municipal, and organizational (i.e. United States Air Force) level. Flow charts are valuable as single-page references that contain quantitative data about resource, commodity, and byproduct flows in a graphical form that also convey structural information about the system that manages those flows. Data on carbon dioxide emissions from the energy sector are reported on a national level. Because carbon dioxide emissions are not reported for individual states, the carbon dioxide emissions are estimated using published energy use information. Data on energy use is compiled by the U.S. Department of Energy's Energy Information Administration (U.S. EIA) in the State Energy Data System (SEDS). SEDS is updated annually and reports data from 2 years prior to the year of the update. SEDS contains data on primary resource consumption, electricity generation, and energy consumption within each economic sector. Flow charts of state-level energy usage and explanations of the calculations and assumptions utilized can be found at: http://flowcharts.llnl.gov. This information is translated into carbon dioxide emissions using ratios of carbon dioxide emissions to energy use calculated from national carbon dioxide emissions and national energy use quantities for each particular sector. These statistics are reported annually in the U.S. EIA's Annual Energy Review. Data for 2008 (US. EIA, 2010) was updated in August of 2010. This is the first presentation of a comprehensive state-level package of flow charts depicting carbon dioxide emissions for the United States.

Smith, C A; Simon, A J; Belles, R D

2011-04-01T23:59:59.000Z

317

Terpolymerization of ethylene, sulfur dioxide and carbon monoxide  

DOE Patents [OSTI]

This invention relates to a high molecular weight terpolymer of ethylene, sulfur dioxide and carbon monoxide stable to 280.degree. C. and containing as little as 36 mol % ethylene and about 41-51 mol % sulfur dioxide; and to the method of producing said terpolymer by irradiation of a liquid and gaseous mixture of ethylene, sulfur dioxide and carbon monoxide by means of Co-60 gamma rays or an electron beam, at a temperature of about 10.degree.-50.degree. C., and at a pressure of about 140 to 680 atmospheres, to initiate polymerization.

Johnson, Richard (Shirley, NY); Steinberg, Meyer (Huntington Station, NY)

1981-01-01T23:59:59.000Z

318

The carbon footprint analysis of wastewater treatment plants and nitrous oxide emissions from full-scale biological nitrogen removal processes in Spain  

E-Print Network [OSTI]

This thesis presents a general model for the carbon footprint analysis of advanced wastewater treatment plants (WWTPs) with biological nitrogen removal processes, using a life cycle assessment (LCA) approach. Literature ...

Xu, Xin, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

319

On-Board Measurement of Ammonia and Nitrous Oxide Using Feedback Absorption Laser Spectroscopy Combined with Amplified Resonance and Low Pressure Sampling  

Broader source: Energy.gov [DOE]

A first set of results has found that LASAR and VLPS data in the laboratory closely correlate with real-time, in-use measurement of NH3 and NO under various driving conditions.

320

Denitrifying Alphaproteobacteria from the Arabian Sea That Express nosZ, the Gene Encoding Nitrous Oxide Reductase, in Oxic and Suboxic Waters  

Science Journals Connector (OSTI)

...United Kingdom under the Marine and Freshwater Microbial...Keith Avery, and the ship's company of RRS Charles...Woodward of Plymouth Marine Laboratory, United Kingdom...gene-specific PCR primers for detection of denitrifiers and three nosZ genes from marine sediments. FEMS Microbiol...

Michael Wyman; Sylvia Hodgson; Clare Bird

2013-02-08T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Optimization of a compact photoacoustic quantum cascade laser spectrometer for atmospheric flux measurements: application to the detection of methane and nitrous oxide  

Science Journals Connector (OSTI)

Room temperature (RT) quantum cascade lasers (QCL) are now available even in ... in the 8 ?m range. The first laser had already been used to calibrate the...4...with a 1s integration time per point was demonstrat...

A. Grossel; V. Zéninari; B. Parvitte; L. Joly; D. Courtois

2007-08-01T23:59:59.000Z

322

Energy loss characteristics of heavy ions in nitrogen, carbon dioxide, argon, hydrocarbon gases and tradescantia tissue  

E-Print Network [OSTI]

Energy loss characteristics of heavy ions in nitrogen, carbon dioxide, argon, hydrocarbon gases and tradescantia tissue

Dennis, J A

1971-01-01T23:59:59.000Z

323

Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks for Clean Energy  

E-Print Network [OSTI]

, and carbon dioxide. Introduction Carbon dioxide emissions resulting from the burning of fossil fuels 20 metric tons of carbon dioxide per capita are released annually into the atmosphere.1a,b CarbonStorage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks

Yaghi, Omar M.

324

Platinum-CatalyzedOxidations of Organic Compounds by Ferric Sulfate: Use of a Redox Fuel Cell to Mediate Complete Oxidation of  

E-Print Network [OSTI]

and complete oxidation of ethylene glycolto carbon dioxide under mild conditionsusing dioxy- gen operating with ethylene glycol as fuel (5, 10-12). METHODS Materials. Methanol, ethanol, and ethylene catalyst was determined to be 3.3 X mol/g Pt (6.44% dispersion) by alternating titration with hydrogen

Prentiss, Mara

325

Advanced byproduct recovery: Direct catalytic reduction of sulfur dioxide to elemental sulfur. Quarterly report, April 1--June 30, 1997  

SciTech Connect (OSTI)

The team of Arthur D. Little, Tufts University and Engelhard Corporation are conducting Phase 1 of a four and a half year, two-phase effort to develop and scale-up an advanced byproduct recovery technology that is a direct, single-stage, catalytic process for converting sulfur dioxide to elemental sulfur. This catalytic process reduces SO{sub 2} over a fluorite-type oxide (such as ceria and zirconia). The catalytic activity can be significantly promoted by active transition metals, such as copper. More than 95% elemental sulfur yield, corresponding to almost complete sulfur dioxide conversion, was obtained over a Cu-Ce-O oxide catalyst as part of an on-going DOE-sponsored, University Coal Research Program. This type of mixed metal oxide catalyst has stable activity, high selectivity for sulfur production, and is resistant to water and carbon dioxide poisoning. Tests with CO and CH{sub 4} reducing gases indicate that the catalyst has the potential for flexibility with regard to the composition of the reducing gas, making it attractive for utility use. The performance of the catalyst is consistently good over a range of SO{sub 2} inlet concentration (0.1 to 10%) indicating its flexibility in treating SO{sub 2} tail gases as well as high concentration streams. The principal objective of the Phase 1 program is to identify and evaluate the performance of a catalyst which is robust and flexible with regard to choice of reducing gas. In order to achieve this goal, the authors have planned a structured program including: Market/process/cost/evaluation; Lab-scale catalyst preparation/optimization studies; Lab-scale, bulk/supported catalyst kinetic studies; Bench-scale catalyst/process studies; and Utility review. Progress is reported from all three organizations.

NONE

1997-12-31T23:59:59.000Z

326

Innovative Geothermal Startup Will Put Carbon Dioxide To Good Use |  

Broader source: Energy.gov (indexed) [DOE]

Geothermal Startup Will Put Carbon Dioxide To Good Use Geothermal Startup Will Put Carbon Dioxide To Good Use Innovative Geothermal Startup Will Put Carbon Dioxide To Good Use March 17, 2011 - 2:09pm Addthis A basic overview of GreenFire's process to convert CO2 into electricity. | Photo courtesy of GreenFire. A basic overview of GreenFire's process to convert CO2 into electricity. | Photo courtesy of GreenFire. JoAnn Milliken What does this project do? GreenFire Energy will conduct the first field demonstration of a CO2-based geothermal system. Getting geothermal power with CO2 instead of water would be particularly beneficial in the arid Southwestern U.S., where water is scarce. Geothermal power holds enormous opportunities to provide affordable, clean energy that avoids greenhouse gases like carbon dioxide (CO2). That's

327

Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic  

Open Energy Info (EERE)

Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic Sources Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic Sources Agency/Company /Organization: United States Environmental Protection Agency Sector: Energy, Climate Focus Area: Biomass, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Biofuels, - Landfill Gas, - Waste to Energy, Greenhouse Gas Phase: Evaluate Options Resource Type: Publications, Guide/manual User Interface: Website Website: www.epa.gov/climatechange/emissions/biogenic_emissions.html Cost: Free References: EPA, 40 CFR Part 60[1] Tailoring Rule[2] Biogenic Emissions[3] The 'EPA Climate Change - Green House Gas Emissions - Carbon Dioxide

328

Annual Energy Outlook 2006 with Projections to 2030 - Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Carbon Dioxide Emissions Carbon Dioxide Emissions Annual Energy Outlook 2006 with Projections to 2030 Higher Energy Consumption Forecast Increases Carbon Dioxide Emissions Figure 107. Carbn dioxide emissions by sector and fuel, 2004 and 2030 (million metric tons). Having problems, call our National Energy Information Center at 202-586-8800 for help. Figure data CO2 emissions from the combustion of fossil fuels are proportional to fuel consumption. Among fossil fuel types, coal has the highest carbon content, natural gas the lowest, and petroleum in between. In the AEO2006 reference case, the shares of these fuels change slightly from 2004 to 2030, with more coal and less petroleum and natural gas. The combined share of carbon-neutral renewable and nuclear energy is stable from 2004 to 2030 at

329

DOE Seeks Applications for Tracking Carbon Dioxide Storage in Geologic  

Broader source: Energy.gov (indexed) [DOE]

Applications for Tracking Carbon Dioxide Storage in Applications for Tracking Carbon Dioxide Storage in Geologic Formations DOE Seeks Applications for Tracking Carbon Dioxide Storage in Geologic Formations February 19, 2009 - 12:00pm Addthis Washington, DC -- The U.S. Department of Energy (DOE) today issued a Funding Opportunity Announcement (FOA) to enhance the capability to simulate, track, and evaluate the potential risks of carbon dioxide (CO2) storage in geologic formations. Geologic storage is considered to be a key technological solution to mitigate CO2 emissions and combat climate change. DOE anticipates making multiple project awards under this FOA and, depending on fiscal year 2009 appropriations, may be able to provide up to $24 million to be distributed among selected recipients. This investment is

330

Recycling Carbon Dioxide to Make Plastics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Recycling Carbon Dioxide to Make Plastics Recycling Carbon Dioxide to Make Plastics Recycling Carbon Dioxide to Make Plastics May 20, 2013 - 1:31pm Addthis Novomer’s thermoplastic pellets incorporate waste CO2 into a variety of consumer products. Novomer's thermoplastic pellets incorporate waste CO2 into a variety of consumer products. Why is this important? By using CO2 that would otherwise be emitted to the atmosphere, the process has the potential to cut greenhouse gas emissions while simultaneously reducing petroleum consumption and producing useful products for American consumers. The world's first successful large-scale production of a polypropylene carbonate (PPC) polymer using waste carbon dioxide (CO2) as a key raw material has resulted from a projected funded in part by the U.S. Department of Energy's Office of Fossil Energy.

331

Carbon Dioxide Sequestration (West Virginia) | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Dioxide Sequestration (West Virginia) Dioxide Sequestration (West Virginia) Carbon Dioxide Sequestration (West Virginia) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Program Info State West Virginia Program Type Environmental Regulations Fees Safety and Operational Guidelines Siting and Permitting The purpose of this law is to: Establish a legal and regulatory framework for the permitting of carbon dioxide sequestration operations; Designate a state agency responsible for establishing standards and

332

Carbon Dioxide Capture in Metal-Organic Frameworks | Center for...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Dioxide Capture in Metal-Organic Frameworks Previous Next List Kenji Sumida , David L. Rogow , Jarad A. Mason , Thomas M. McDonald , Eric D. Bloch , Zoey R. Herm , Tae-Hyun...

333

A versatile metal-organic framework for carbon dioxide capture...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

versatile metal-organic framework for carbon dioxide capture and cooperative catalysis Previous Next List Jinhee Park, Jian-Rong Li, Ying-Pin Chen, Jiamei Yu, Andrey A. Yakovenko,...

334

Carbon dioxide capture under ambient conditions using 2-chloroethylamine  

Science Journals Connector (OSTI)

This is the first case applying 2-haloethylamine to CO2 capture. The prospect of global warming and the urgent need to reduce atmospheric concentration of carbon dioxide has prompted actions at many levels. The c...

Junhua Wang; Xiqin Zhang; Yun Zhou

2011-12-01T23:59:59.000Z

335

Carbon dioxide capture-related gas adsorption and separation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon dioxide capture-related gas adsorption and separation in metal-organic frameworks Previous Next List Jian-Rong Li, Yuguang Ma, M. Colin McCarthy, Julian Sculley, Jiamei Yu,...

336

Carbon Dioxide Capture: Prospects for New Materials | Center...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Dioxide Capture: Prospects for New Materials Previous Next List D. M. D'Alessandro, B. Smit, and J. R. Long, Angew. Chem.-Int. Edit. 49 (35), 6058 (2010) DOI: 10.1002...

337

Ownership of Carbon Dioxide Captured by Clean Coal Project (Texas)  

Broader source: Energy.gov [DOE]

This legislation stipulates that the Railroad Commission of Texas automatically acquires the title to any carbon dioxide captured by a clean coal project in the state. The Bureau of Economic...

338

Carbon dioxide dissolution in structural and stratigraphic traps  

E-Print Network [OSTI]

The geologic sequestration of carbon dioxide (CO[subscript 2]) in structural and stratigraphic traps is a viable option to reduce anthropogenic emissions. While dissolution of the CO[subscript 2] stored in these traps ...

Hesse, M. A.

339

Manganese carbonate additive for manganese dioxide-containing nonaqueous cells  

SciTech Connect (OSTI)

A nonaqueous cell employing a manganese dioxide-containing solid cathode having a minor amount of manganese carbonate to improve the pulse voltage capability of the cell at low temperatures such as -10/sup 0/ C.

Langan, R.A.

1984-10-23T23:59:59.000Z

340

Electrochemically-mediated amine regeneration for carbon dioxide separations  

E-Print Network [OSTI]

This thesis describes a new strategy for carbon dioxide (CO?) separations based on amine sorbents, which are electrochemically-mediated to facilitate the desorption and regeneration steps of the separation cycle. The ...

Stern, Michael C. (Michael Craig)

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Syngas Production Using Carbon Dioxide Reforming: Fundamentals and Perspectives  

Science Journals Connector (OSTI)

Syngas can be produced from a variety of different hydrocarbon molecules by the catalysed reaction with steam, carbon dioxide or oxygen (or with various combinations of these) at high temperatures. This chapte...

Julian R. H. Ross

2014-01-01T23:59:59.000Z

342

Do Consumers Select Food Products Based on Carbon Dioxide Emissions?  

Science Journals Connector (OSTI)

This study investigates whether consumers select foods based on the levels of carbon dioxide emissions by a real choice experiment. Respondents are...2 emissions under no monetary incentives. The willingness to.....

Keiko Aoki; Kenju Akai

2013-01-01T23:59:59.000Z

343

Convergence of carbon dioxide emissions in different sectors in China  

Science Journals Connector (OSTI)

Abstract In this paper, we analyze differences in per capita carbon dioxide emissions from 1996 to 2010 in six sectors across 28 provinces in China and examine the ?-convergence, stochastic convergence and ?-convergence of these emissions. We also investigate the factors that impact the convergence of per capita carbon dioxide emissions in each sector. The results show that per capita carbon dioxide emissions in all sectors converged across provinces from 1996 to 2010. Factors that impact the convergence of per capita carbon dioxide emissions in each sector vary: GDP (gross domestic product) per capita, industrialization process and population density impact convergence in the Industry sector, while GDP per capita and population density impact convergence in the Transportation, Storage, Postal, and Telecommunications Services sector. Aside from GDP per capita and population density, trade openness also impacts convergence in the Wholesale, Retail, Trade, and Catering Service sector. Population density is the only factor that impacts convergence in the Residential Consumption sector.

Juan Wang; Kezhong Zhang

2014-01-01T23:59:59.000Z

344

By the Numbers: A Visual Chronicle of Carbon Dioxide Emissions  

Science Journals Connector (OSTI)

Carbon dioxide equivalent (CO2-eq.) emissions are now considered a de facto indicator ... this chapter highlights the size and scope of carbon emissions at multiple levels—countries, cities, industrial...

Tonya Boone; Ram Ganeshan

2012-01-01T23:59:59.000Z

345

The effect of the Kyoto Protocol on carbon dioxide emissions  

Science Journals Connector (OSTI)

In this paper, we investigate the impact of the Kyoto Protocol on world emissions of a greenhouse gas, carbon dioxide. We use a large unbalanced panel data ... the effects of the international agreement. While carbon

Risa Kumazawa; Michael S. Callaghan

2012-01-01T23:59:59.000Z

346

Optical properties of nanostructured silicon-rich silicon dioxide  

E-Print Network [OSTI]

We have conducted a study of the optical properties of sputtered silicon-rich silicon dioxide (SRO) thin films with specific application for the fabrication of erbium-doped waveguide amplifiers and lasers, polarization ...

Stolfi, Michael Anthony

2006-01-01T23:59:59.000Z

347

Control strategies for supercritical carbon dioxide power conversion systems  

E-Print Network [OSTI]

The supercritical carbon dioxide (S-C02) recompression cycle is a promising advanced power conversion cycle which couples well to numerous advanced nuclear reactor designs. This thesis investigates the dynamic simulation ...

Carstens, Nathan, 1978-

2007-01-01T23:59:59.000Z

348

Carbon Dioxide Capture and Storage Demonstration in Developing Countries:  

Open Energy Info (EERE)

Carbon Dioxide Capture and Storage Demonstration in Developing Countries: Carbon Dioxide Capture and Storage Demonstration in Developing Countries: Analysis of Key Policy Issues and Barriers Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Carbon Dioxide Capture and Storage Demonstration in Developing Countries: Analysis of Key Policy Issues and Barriers Focus Area: Clean Fossil Energy Topics: Potentials & Scenarios Website: cdn.globalccsinstitute.com/sites/default/files/publications/15536/carb Equivalent URI: cleanenergysolutions.org/content/carbon-dioxide-capture-and-storage-de Policies: "Deployment Programs,Financial Incentives" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Technical Assistance This report discusses the value of carbon capture and storage (CCS)

349

New and Underutilized Technology: Carbon Dioxide Demand Ventilation Control  

Broader source: Energy.gov (indexed) [DOE]

Carbon Dioxide Demand Ventilation Carbon Dioxide Demand Ventilation Control New and Underutilized Technology: Carbon Dioxide Demand Ventilation Control October 4, 2013 - 4:23pm Addthis The following information outlines key deployment considerations for carbon dioxide (CO2) demand ventilation control within the Federal sector. Benefits Demand ventilation control systems modulate ventilation levels based on current building occupancy, saving energy while still maintaining proper indoor air quality (IAQ). CO2 sensors are commonly used, but a multiple-parameter approach using total volatile organic compounds (TVOC), particulate matter (PM), formaldehyde, and relative humidity (RH) levels can also be used. CO2 sensors control the outside air damper to reduce the amount of outside air that needs to be conditioned and supplied to the building when

350

Figure 3. Energy-Related Carbon Dioxide Emissions  

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

3. Energy-Related Carbon Dioxide Emissions" " (million metric tons)" ,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024,2025,2026,2027,2028,...

351

Molten uranium dioxide structure and dynamics  

Science Journals Connector (OSTI)

...prevented ~64 × 10 12 kg of CO 2 -equivalent emissions since 1971, corresponding to a saving of 1.84 million air pollution–related deaths (1). Because the majority of currently operating nuclear reactors use either UO 2 or mixed oxide...

L. B. Skinner; C. J. Benmore; J. K. R. Weber; M. A. Williamson; A. Tamalonis; A. Hebden; T. Wiencek; O. L. G. Alderman; M. Guthrie; L. Leibowitz; J. B. Parise

2014-11-21T23:59:59.000Z

352

Sub-Doppler Spectra of Infrared Hyperfine Transitions of Nitric Oxide Using a Pulse Modulated Quantum Cascade Laser: Rapid Passage, Free Induction Decay and the AC Stark Effect  

SciTech Connect (OSTI)

Using a low power, rapid (nsec) pulse-modulated quantum cascade (QC) laser, collective coherent effects in the 5 {micro}m spectrum of nitric oxide have been demonstrated by the observation of sub-Doppler hyperfine splitting and also Autler-Townes splitting of Doppler broadened lines. For nitrous oxide, experiments and model calculations have demonstrated that two main effects occur with ulsemodulated (chirped) quantum cascade lasers: free induction decay signals, and signals induced by rapid passage during the laser chirp. In the open shell molecule, NO, in which both {Lambda}-doubling splitting and hyperfine structure occur, laser field-induced coupling between the hyperfine levels of the two {Lambda}-doublet components can induce a large AC Stark effect. This may be observed as sub-Doppler structure, field-induced splittings, or Autler-Townes splitting of a Doppler broadened line. These represent an extension of the types of behaviour observed in the closed shell molecule nitrous oxide, using the same apparatus, when probed with an 8 {micro}m QC laser.

Duxbury, Geoffrey; Kelly, James F.; Blake, Thomas A.; Langford, Nigel

2012-05-07T23:59:59.000Z

353

Catalytic Transformation of Waste Carbon Dioxide into Valuable Products  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Catalytic Transformation of Waste Catalytic Transformation of Waste Carbon Dioxide into Valuable Products Background Many industrial processes contribute large amounts of carbon dioxide (CO 2 ) to the earth's atmosphere. In an effort to reduce the amount of CO 2 released to the atmosphere, the U.S. Department of Energy (DOE) is funding efforts to develop CO 2 capture and storage technologies. In addition to permanent storage of CO 2 in underground reservoirs, some

354

Project Profile: 10-Megawatt Supercritical Carbon Dioxide Turbine  

Broader source: Energy.gov [DOE]

The National Renewable Energy Laboratory (NREL) and its partners, under the 2012 SunShot Concentrating Solar Power (CSP) R&D funding opportunity announcement (FOA), aim to demonstrate a multi-megawatt power cycle using supercritical carbon dioxide (s-CO2) as the working fluid. The use of carbon dioxide instead of steam allows higher power-cycle efficiency and cycle components that are more compact.

355

Tethered catalysts for the hydration of carbon dioxide  

DOE Patents [OSTI]

A system is provided that substantially increases the efficiency of CO.sub.2 capture and removal by positioning a catalyst within an optimal distance from the air-liquid interface. The catalyst is positioned within the layer determined to be the highest concentration of carbon dioxide. A hydrophobic tether is attached to the catalyst and the hydrophobic tether modulates the position of the catalyst within the liquid layer containing the highest concentration of carbon dioxide.

Valdez, Carlos A; Satcher, Jr., Joe H; Aines, Roger D; Wong, Sergio E; Baker, Sarah E; Lightstone, Felice C; Stolaroff, Joshuah K

2014-11-04T23:59:59.000Z

356

Carbon Dioxide Reforming of Methane to Syngas by Thermal Plasma  

Science Journals Connector (OSTI)

Experiments were conducted on syngas preparation from dry reforming of methane by carbon dioxide with a DC arc plasma at atmospheric pressure. In all experiments, nitrogen gas was used as the working gas for thermal plasma to generate a high-temperature jet into a horizontal tube reactor. A mixture of methane and carbon dioxide was fed vertically into the jet. In order to obtain a higher conversion rate of methane and carbon dioxide, chemical energy efficiency and fuel production efficiency, parametric screening studies were conducted, in which the volume ratio of carbon dioxide to methane in fed gases and the total flux of fed gases were taken into account. Results showed that carbon dioxide reforming of methane to syngas by thermal plasma exhibited a larger processing capacity, higher conversion of methane and carbon dioxide and higher chemical energy efficiency and fuel production efficiency. In addition, thermodynamic simulation for the reforming process was conducted. Experimental data agreed well with the thermodynamic results, indicating that high thermal efficiency can be achieved with the thermal plasma reforming process.

Sun Yanpeng (???); Nie Yong (??); Wu Angshan (???); Ji Dengxiang (???); Yu Fengwen (???); Ji Jianbing (???)

2012-01-01T23:59:59.000Z

357

Biofilter for removal of nitrogen oxides from contaminated gases under aerobic conditions  

DOE Patents [OSTI]

A biofilter for reducing concentrations of gaseous nitrogen oxides in a polluted gas comprises a porous organic filter bed medium disposed in a housing, the filter bed medium including a mixed culture of naturally occurring denitrifying bacteria for converting the nitrogen oxides to nitrogen gas, carbon dioxide, and water. A method of reducing concentrations of nitrogen oxides in polluted gas comprises conducting the polluted gas through the biofilter so that the denitrifying bacteria can degrade the nitrogen oxides. A preferred filter medium is wood compost, however composts of other organic materials are functional. Regulation of pH, moisture content, exogenous carbon sources, and temperature are described.

Apel, William A. (Idaho Falls, ID)

1998-01-01T23:59:59.000Z

358

Method for converting hydrocarbon fuel into hydrogen gas and carbon dioxide  

DOE Patents [OSTI]

A method for converting hydrocarbon fuel into hydrogen gas and carbon dioxide within a reformer 10 is disclosed. According to the method, a stream including an oxygen-containing gas is directed adjacent to a first vessel 18 and the oxygen-containing gas is heated. A stream including unburned fuel is introduced into the oxygen-containing gas stream to form a mixture including oxygen-containing gas and fuel. The mixture of oxygen-containing gas and unburned fuel is directed tangentially into a partial oxidation reaction zone 24 within the first vessel 18. The mixture of oxygen-containing gas and fuel is further directed through the partial oxidation reaction zone 24 to produce a heated reformate stream including hydrogen gas and carbon monoxide. Steam may also be mixed with the oxygen-containing gas and fuel, and the reformate stream from the partial oxidation reaction zone 24 directed into a steam reforming zone 26. High- and low-temperature shift reaction zones 64,76 may be employed for further fuel processing.

Clawson, Lawrence G. (Dover, MA); Mitchell, William L. (Belmont, MA); Bentley, Jeffrey M. (Westford, MA); Thijssen, Johannes H. J. (Cambridge, MA)

2000-01-01T23:59:59.000Z

359

Production of small uranium dioxide microspheres for cermet nuclear fuel using the internal gelation process  

SciTech Connect (OSTI)

The U.S. National Aeronautics and Space Administration (NASA) is developing a uranium dioxide (UO2)/tungsten cermet fuel for potential use as the nuclear cryogenic propulsion stage (NCPS). The first generation NCPS is expected to be made from dense UO2 microspheres with diameters between 75 and 150 m. Previously, the internal gelation process and a hood-scale apparatus with a vibrating nozzle were used to form gel spheres, which became UO2 kernels with diameters between 350 and 850 m. For the NASA spheres, the vibrating nozzle was replaced with a custom designed, two-fluid nozzle to produce gel spheres in the desired smaller size range. This paper describes the operational methodology used to make 3 kg of uranium oxide microspheres.

Collins, Robert T [ORNL] [ORNL; Collins, Jack Lee [ORNL] [ORNL; Hunt, Rodney Dale [ORNL] [ORNL; Ladd-Lively, Jennifer L [ORNL] [ORNL; Patton, Kaara K [ORNL] [ORNL; Hickman, Robert [NASA Marshall Space Flight Center, Huntsville, AL] [NASA Marshall Space Flight Center, Huntsville, AL

2014-01-01T23:59:59.000Z

360

Carbon Monoxide Oxidation by Bacteria Associated with the Roots of Freshwater Macrophytes  

Science Journals Connector (OSTI)

...consumption and production of atmospheric carbon monoxide by...the consumption of atmospheric carbon monoxide by...rapid oxidation of atmospheric CO to CO2 by soils...D. Influence of water table on carbon dioxide...rice fields and biogas generators: CH4, N2O, CO...

Jeremy J. Rich; G. M. King

1998-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Assessment of soil nitrogen oxides emissions and implementation in LOTOS-EUROS  

E-Print Network [OSTI]

the formation and transport of nitrogen dioxide, ozone, particulate matter and other species throughout EuropeAssessment of soil nitrogen oxides emissions and implementation in LOTOS-EUROS Date 18 March 2013, climate and nitrogen availability. Nitrogen availability is in turn determined by N-deposition from

Haak, Hein

362

A novel "gelsol" strategy to synthesize TiO2 nanorod combining reduced graphene oxide composites  

E-Print Network [OSTI]

Graphene oxide Titanium dioxide Nanostructure Semiconductors Nanorods a b s t r a c t In this studyH value benefits the deprotonation of TEOA for adsorption to the stationary nuclei. Therefore triethanolamine (TEOA) with titanium (IV) isopropoxide (TIPO) at a molar ratio of [TEOA]:[TIPO]¼2:1, was added

Guo, John Zhanhu

363

Where do fossil fuel carbon dioxide emissions from California go? An analysis based on radiocarbon observations and an atmospheric transport model  

E-Print Network [OSTI]

do fossil fuel carbon dioxide emissions from California go?do fossil fuel carbon dioxide emissions from California go?1° distribution of carbon dioxide emissions from fossil fuel

2008-01-01T23:59:59.000Z

364

Carbon-dioxide-controlled ventilation study  

SciTech Connect (OSTI)

The In-House Energy Management (IHEM) Program has been established by the U.S. Department of Energy to provide funds to federal laboratories to conduct research on energy-efficient technology. The Energy Sciences Department of Pacific Northwest Laboratory (PNL) was tasked by IHEM to research the energy savings potential associated with reducing outdoor-air ventilation of buildings. By monitoring carbon dioxide (CO{sub 2}) levels in a building, outdoor air provided by the heating, ventilating, and air-conditioning (HVAC) system can be reduced to the percentage required to maintain satisfactory CO{sub 2} levels rather than ventilating with a higher outdoor-air percentage based on an arbitrary minimum outdoor-air setting. During summer months, warm outdoor air brought into a building for ventilation must be cooled to meet the appropriate cooling supply-air temperature, and during winter months, cold outdoor air must be heated. By minimizing the amount of hot or cold outdoor air brought into the HVAC system, the supply air requires less cooling or heating, saving energy and money. Additionally, the CO{sub 2} levels in a building can be monitored to ensure that adequate outdoor air is supplied to a building to maintain air quality levels. The two main considerations prior to implementing CO{sub 2}-based ventilation control are its impact on energy consumption and the adequacy of indoor air quality (IAQ) and occupant comfort. To address these considerations, six portable CO{sub 2} monitors were placed in several Hanford Site buildings to estimate the adequacy of office/workspace ventilation. The monitors assessed the potential for reducing the flow of outdoor-air to the buildings. A candidate building was also identified to monitor various ventilation control strategies for use in developing a plan for implementing and assessing energy savings.

McMordie, K.L.; Carroll, D.M.

1994-05-01T23:59:59.000Z

365

Why sequence carbon monoxide oxidizing thermophiles?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

carbon monoxide oxidizing thermophiles? carbon monoxide oxidizing thermophiles? Many microbes that use carbon monoxide as an energy source are found in high temperature environments such as geothermal areas. Researchers think that these carboxydotrophs may be involved in reducing potentially toxic carbon monoxide hotspots by combine with water to form hydrogen, carbon dioxide and acetate, which are in turn used for thermophilic energy conservation and carbon sequestration mechanisms. The project focuses on sequencing two closely related microbes, one of which is Carboxydothermus hydrogenformans. A strain of C. hydrogenformans has been grown in hydrogen-enriched synthesis gas (syngas), which contains a mix of hydrogen and carbon monoxide. Researchers are interested in sequencing both microbial strains to track the genome's evolution and

366

Flameless thermal oxidation. Innovative technology summary report  

SciTech Connect (OSTI)

The Flameless Thermal Oxidizer (FTO) is a commercial technology offered by Thermatrix, Inc. The FTO has been demonstrated to be an effective destructive technology for process and waste stream off-gas treatment of volatile organic compounds (VOCs), and in the treatment of VOC and chlorinated volatile organic compounds (CVOCs) off-gases generated during site remediation using either baseline or innovative in situ environmental technologies. The FTO process efficiently converts VOCs and CVOCs to carbon dioxide, water, and hydrogen chloride. When FTO is coupled with a baseline technology, such as soil vapor extraction (SVE), an efficient in situ soil remediation system is produced. The innovation is in using a simple, reliable, scalable, and robust technology for the destruction of VOC and CVOC off-gases based on a design that generates a uniform thermal reaction zone that prevents flame propagation and efficiently oxidizes off-gases without forming products of incomplete combustion (PICs).

NONE

1995-09-01T23:59:59.000Z

367

Uranium Oxide Aerosol Transport in Porous Graphite  

SciTech Connect (OSTI)

The objective of this paper is to investigate the transport of uranium oxide particles that may be present in carbon dioxide (CO2) gas coolant, into the graphite blocks of gas-cooled, graphite moderated reactors. The transport of uranium oxide in the coolant system, and subsequent deposition of this material in the graphite, of such reactors is of interest because it has the potential to influence the application of the Graphite Isotope Ratio Method (GIRM). The GIRM is a technology that has been developed to validate the declared operation of graphite moderated reactors. GIRM exploits isotopic ratio changes that occur in the impurity elements present in the graphite to infer cumulative exposure and hence the reactor’s lifetime cumulative plutonium production. Reference Gesh, et. al., for a more complete discussion on the GIRM technology.

Blanchard, Jeremy; Gerlach, David C.; Scheele, Randall D.; Stewart, Mark L.; Reid, Bruce D.; Gauglitz, Phillip A.; Bagaasen, Larry M.; Brown, Charles C.; Iovin, Cristian; Delegard, Calvin H.; Zelenyuk, Alla; Buck, Edgar C.; Riley, Brian J.; Burns, Carolyn A.

2012-01-23T23:59:59.000Z

368

Application of electrochemical technology for removing petroleum hydrocarbons from produced water using lead dioxide and boron-doped diamond electrodes  

Science Journals Connector (OSTI)

Abstract Although diverse methods exist for treating polluted water, the most promising and innovating technology is the electrochemical remediation process. This paper presents the anodic oxidation of real produced water (PW), generated by the petroleum exploration of the Petrobras plant-Tunisia. Experiments were conducted at different current densities (30, 50 and 100 mA cm?2) using the lead dioxide supported on tantalum (Ta/PbO2) and boron-doped diamond (BDD) anodes in an electrolytic batch cell. The electrolytic process was monitored by the chemical oxygen demand (COD) and the residual total petroleum hydrocarbon [TPH] in order to know the feasibility of electrochemical treatment. The characterization and quantification of petroleum wastewater components were performed by gas chromatography mass spectrometry. The COD removal was approximately 85% and 96% using PbO2 and BDD reached after 11 and 7 h, respectively. Compared with PbO2, the BDD anode showed a better performance to remove petroleum hydrocarbons compounds from produced water. It provided a higher oxidation rate and it consumed lower energy. However, the energy consumption and process time make useless anodic oxidation for the complete elimination of pollutants from PW. Cytotoxicity has shown that electrochemical oxidation using BDD could be efficiently used to reduce more than 90% of hydrocarbons compounds. All results suggest that electrochemical oxidation could be an effective approach to treat highly concentrated organic pollutants present in the industrial petrochemical wastewater and significantly reduce the cost and time of treatment.

Boutheina Gargouri; Olfa Dridi Gargouri; Bochra Gargouri; Souhel Kallel Trabelsi; Ridha Abdelhedi; Mohamed Bouaziz

2014-01-01T23:59:59.000Z

369

EFFECT OF NITROGEN OXIDE PRETREATMENTS ON ENZYMATIC HYDROLYSIS OF CELLULOSE  

E-Print Network [OSTI]

oxygen react to give nitrogen dioxide, which rapidly reactsis simultaneous, the nitrogen dioxide formed reacts withaccomplished by absorbing nitrogen dioxide in water, usually

Borrevik, R.K.

2011-01-01T23:59:59.000Z

370

Oxidation of Propane by Doped Nickel Oxides  

Science Journals Connector (OSTI)

... present study, however, indicate that in the absence of excess oxygen, direct oxidation of propane by the oxide lattice can occur.

D. W. McKEE

1964-04-11T23:59:59.000Z

371

Carbon dioxide, the feedstock for using renewable energy  

Science Journals Connector (OSTI)

Extrapolation of world energy consumption between 1990 and 2007 to the future reveals the complete exhaustion of petroleum, natural gas, uranium and coal reserves on Earth in 2040, 2044, 2049 and 2054, respectively. We are proposing global carbon dioxide recycling to use renewable energy so that all people in the whole world can survive. The electricity will be generated by solar cell in deserts and used to produce hydrogen by seawater electrolysis at t nearby desert coasts. Hydrogen, for which no infrastructures of transportation and combustion exist, will be converted to methane at desert coasts by the reaction with carbon dioxide captured by energy consumers. Among systems in global carbon dioxide recycling, seawater electrolysis and carbon dioxide methanation have not been performed industrially. We created energy-saving cathodes for hydrogen production and anodes for oxygen evolution without chlorine formation in seawater electrolysis, and ideal catalysts for methane formation by the reaction of carbon dioxide with hydrogen. Prototype plant and industrial scale pilot plant have been built.

K Hashimoto; N Kumagai; K Izumiya; Z Kato

2011-01-01T23:59:59.000Z

372

Advanced product recovery: Direct catalytic reduction of sulfur dioxide to elemental sulfur. Third quarterly technical progress report  

SciTech Connect (OSTI)

More than 170 wet scrubber systems applied to 72,000 MW of US, coal-fired, utility boilers are in operation or under construction. In these systems, the sulfur dioxide removed form the boiler flue gas is permanently bound to a sorbent material, such as lime or limestone. The sulfated sorbent must be disposed of as a waste product or, in some cases, sold as a byproduct (e.g. gypsum). The use of regenerable sorbent technologies has the potential to reduce or eliminate solid waste production, transportation and disposal. Arthur D. Little, Inc., together with its industry and commercialization advisor, Engelhard Corporation, and its university partner, Tufts, plans to develop and scale-up an advanced, byproduct recovery technology that is a direct, catalytic process for reducing sulfur dioxide to elemental sulfur. The principal objective of the Phase 1 program is to identify and evaluate the performance of a catalyst which is robust and flexible with regard to choice of reducing gas. In order to achieve this goal, they have planned a structured program including: market/process/cost/evaluation; lab-scale catalyst preparation/optimization studies; lab-scale, bulk/supported catalyst kinetic studies; bench-scale catalyst/process studies; and utility review. This catalytic process reduces SO{sub 2} over a fluorite-type oxide (such as ceria and zirconia). The catalytic activity can be significantly promoted by active transition metals, such as copper. This type of mixed metal oxide catalyst has stable activity, high selectivity for sulfur production, and is resistant to water and carbon dioxide poisoning.

NONE

1996-07-01T23:59:59.000Z

373

New Texas Oil Project Will Help Keep Carbon Dioxide Underground |  

Broader source: Energy.gov (indexed) [DOE]

Texas Oil Project Will Help Keep Carbon Dioxide Underground Texas Oil Project Will Help Keep Carbon Dioxide Underground New Texas Oil Project Will Help Keep Carbon Dioxide Underground February 5, 2013 - 12:05pm Addthis The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy’s National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen production facilities. The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy's National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen

374

NETL: News Release - DOE Report Assesses Potential for Carbon Dioxide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4, 2009 4, 2009 DOE Report Assesses Potential for Carbon Dioxide Storage Beneath Federal Lands Newly Released Document Complements 2008 Carbon Sequestration Atlas Washington, D.C. - As a complementary document to the U.S. Department of Energy's Carbon Sequestration Atlas of the United States and Canada issued in November 2008, the Office of Fossil Energy's National Energy Technology Laboratory has now released a report that provides an initial estimate of the potential to store carbon dioxide (CO2) underneath millions of acres of Federal lands. MORE INFO Read the report The report, Storage of Captured Carbon Dioxide Beneath Federal Lands, estimates and characterizes the storage potential that lies beneath some of the more than 400 million acres of Federal land available for lease.

375

New Texas Oil Project Will Help Keep Carbon Dioxide Underground |  

Broader source: Energy.gov (indexed) [DOE]

New Texas Oil Project Will Help Keep Carbon Dioxide Underground New Texas Oil Project Will Help Keep Carbon Dioxide Underground New Texas Oil Project Will Help Keep Carbon Dioxide Underground February 5, 2013 - 12:05pm Addthis The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy’s National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen production facilities. The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy's National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen

376

Geologic Carbon Dioxide Storage Field Projects Supported by DOE's  

Broader source: Energy.gov (indexed) [DOE]

Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Sequestration Program Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Sequestration Program Background: The U.S. DOE's Sequestration Program began with a small appropriation of $1M in 1997 and has grown to be the largest most comprehensive CCS R&D program in the world. The U.S. DOE's sequestration program has supported a number of projects implementing CO2 injection in the United States and other countries including, Canada, Algeria, Norway, Australia, and Germany. The program has also been supporting a number of complementary R&D projects investigating the science of storage, simulation, risk assessment, and monitoring the fate of the injected CO2 in the subsurface.

377

Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the Southwest Pacific during Austral Autumn, 1990: Results from NOAA/PMEL CGC-90 Cruise. Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the Southwest Pacific during Austral Autumn, 1990: Results from NOAA/PMEL CGC-90 Cruise. NDP-052 (1995) data Download the Data and ASCII Documentation files of NDP-052 PDF Download a PDF of NDP-052 image Contributed by Marilyn F. Lamb and Richard A. Feely Pacific Marine Environmental Laboratory Seattle, Washington and Lloyd Moore and Donald K. Atwood Atlantic Oceanographic and Meteorological Laboratory Miami, Florida Prepared by Alexander Kozyr* Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee, U.S.A. *Energy, Environment, and Resources Center The University of Tennessee Knoxville, Tennessee Environmental Sciences Division Publication No. 4420 Date Published: September 1995

378

Underground storage of natural gas, liquid hydrocarbons, and carbon dioxide  

Broader source: Energy.gov (indexed) [DOE]

storage of natural gas, liquid hydrocarbons, and carbon storage of natural gas, liquid hydrocarbons, and carbon dioxide (Louisiana) Underground storage of natural gas, liquid hydrocarbons, and carbon dioxide (Louisiana) < Back Eligibility Commercial Construction Industrial Investor-Owned Utility Municipal/Public Utility Utility Program Info State Louisiana Program Type Environmental Regulations Siting and Permitting The Louisiana Department of Environmental Quality regulates the underground storage of natural gas or liquid hydrocarbons and carbon dioxide. Prior to the use of any underground reservoir for the storage of natural gas and prior to the exercise of eminent domain by any person, firm, or corporation having such right under laws of the state of Louisiana, the commissioner, shall have found all of the following:

379

Carbon Dioxide Capture from Flue Gas Using Dry, Regenerable Sorbents  

SciTech Connect (OSTI)

This report describes research conducted between July 1, 2006 and September 30, 2006 on the use of dry regenerable sorbents for removal of carbon dioxide (CO{sub 2}) from coal combustion flue gas. Modifications to the integrated absorber/ sorbent regenerator/ sorbent cooler system were made to improve sorbent flow consistency and measurement reliability. Operation of the screw conveyor regenerator to achieve a sorbent temperature of at least 120 C at the regenerator outlet is necessary for satisfactory carbon dioxide capture efficiencies in succeeding absorption cycles. Carbon dioxide capture economics in new power plants can be improved by incorporating increased capacity boilers, efficient flue gas desulfurization systems and provisions for withdrawal of sorbent regeneration steam in the design.

David A. Green; Thomas O. Nelson; Brian S. Turk; Paul D. Box Raghubir P. Gupta

2006-09-30T23:59:59.000Z

380

Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions | Open  

Open Energy Info (EERE)

Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Jump to: navigation, search Geothermal Lab Call Projects for Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":false,"width":"600px","height":"350px","centre":false,"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":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Capture of green-house carbon dioxide in Portland cement  

SciTech Connect (OSTI)

A novel process has been developed to sequester green-house carbon dioxide produced by the cement industry in precast cement products. Typically, 10--24 wt % of CO{sub 2} produced by calcination of calcium carbonate during clinkering of the cement may be captured. The carbonation process also cures the cement paste within minutes into hard bodies. The process maintains high pH conditions during curing, to allow conventional steel reinforcement of concrete. The process will save time and money to the cement industry, and at the same time, help them to comply with the Clean Air Act by sequestering the green-house carbon dioxide.

Wagh, A.S.; Singh, D.; Pullockaran, J.; Knox, L.

1993-12-31T23:59:59.000Z

382

NOVEL CERAMIC MEMBRANE FOR HIGH TEMPERATURE CARBON DIOXIDE SEPARATION  

SciTech Connect (OSTI)

This project is aimed at demonstrating technical feasibility for a lithium zirconate based dense ceramic membrane for separation of carbon dioxide from flue gas at high temperature. The research work conducted in this reporting period was focused on several fundamental issues of lithium zirconate important to the development of the dense inorganic membrane. These fundamental issues include material synthesis of lithium zirconate, phases and microstructure of lithium zirconate and structure change of lithium zirconate during sorption/desorption process. The results show difficulty to prepare the dense ceramic membrane from pure lithium zirconate, but indicate a possibility to prepare the dense inorganic membrane for carbon dioxide separation from a composite lithium zirconate.

Jerry Y.S. Lin; Jun-ichi Ida

2001-03-01T23:59:59.000Z

383

Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Dioxide-Based Carbon Dioxide-Based Heat Pump Water Heater Research Project to someone by E-mail Share Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Facebook Tweet about Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Twitter Bookmark Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Google Bookmark Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Delicious Rank Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Digg Find More places to share Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on AddThis.com...

384

SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Supercritical Carbon Dioxide Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers to someone by E-mail Share SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Facebook Tweet about SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Twitter Bookmark SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Google Bookmark SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Delicious Rank SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Digg Find More places to share SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on AddThis.com... Concentrating Solar Power Systems Components

385

Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular  

E-Print Network [OSTI]

Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence by examining the joint effects of carbon dioxide (CO2) enrichment, nitrogen (N) fertilization and plant, community composition, grassland, niche partitioning hypothesis, nitrogen fertilization, plant richness

Minnesota, University of

386

Technical Data Sheet: TDS 15 DIFRAM100: RAPID AIR MONITOR -NITROGEN DIOXIDE (NO2).  

E-Print Network [OSTI]

Technical Data Sheet: TDS 15 DIFRAM100: RAPID AIR MONITOR - NITROGEN DIOXIDE (NO2). Description: A plastic (H.D.P.E.) circular diffusive sampler containing a sorbent for measuring gaseous nitrogen dioxide

Short, Daniel

387

Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence arbuscular  

E-Print Network [OSTI]

Seven years of carbon dioxide enrichment, nitrogen fertilization and plant diversity influence by examining the joint effects of carbon dioxide (CO2) enrichment, nitrogen (N) fertilization and plant enrichment, community composition, grassland, niche partitioning hypothesis, nitrogen fertilization, plant

Minnesota, University of

388

Effet of Combined Nitrogen Dioxide and Carbon Nanoparticle Exposure on Lung Function During  

E-Print Network [OSTI]

Effet of Combined Nitrogen Dioxide and Carbon Nanoparticle Exposure on Lung Function During: Layachi S, Rogerieux F, Robidel F, Lacroix G, Bayat S (2012) Effet of Combined Nitrogen Dioxide and Carbon

Boyer, Edmond

389

Anthropogenic Carbon Dioxide Emissions and Ocean Acidification: The Potential Impacts on Ocean Biodiversity  

Science Journals Connector (OSTI)

Most of the focus in recent years on the potential impacts of rising levels of carbon dioxide in the atmosphere linked to anthropogenic activities ... oceans as a consequence of the influx of carbon dioxide absor...

William C. G. Burns

2008-01-01T23:59:59.000Z

390

On the potential economic costs of cutting carbon dioxide emissions in Portugal  

Science Journals Connector (OSTI)

The objective of this paper is to estimate the impact of reducing carbon dioxide emissions from fossil fuel combustion activities on economic ... €6,340. More importantly, and since carbon dioxide emissions are l...

Alfredo Marvão Pereira; Rui Manuel Marvão Pereira

2010-12-01T23:59:59.000Z

391

Global carbon dioxide emissions scenarios: Sensitivity to social and technological factors in three regions  

Science Journals Connector (OSTI)

Carbon dioxide emissions from 1990 to 2100 AD are decomposed ... intensity (energy use per unit GDP) and carbon intensity (carbon dioxide emissions per unit energy). These emissions factors are further subdivided...

Christopher Yang; Stephen H. Schneider

392

Global Carbon Dioxide Emissions Scenarios: Sensitivity to Social and Technological Factors in Three Regions  

Science Journals Connector (OSTI)

Carbon dioxide emissions from 1990 to 2100 AD are decomposed ... intensity (energy use per unit GDP) and carbon intensity (carbon dioxide emissions per unit energy). These emissions factors are further subdivided...

Christopher Yang; Stephen H. Schneider

1998-12-01T23:59:59.000Z

393

Stress dependent oxidation of sputtered niobium and effects on superconductivity  

SciTech Connect (OSTI)

We report on the suppression of room temperature oxidation of DC sputtered niobium films and the effects upon the superconductive transition temperature, T{sub c}. Niobium was sputter-deposited on silicon dioxide coated 150?mm wafers and permitted to oxidize at room temperature and pressure for up to two years. Resistivity and stress measurements indicate that tensile films greater than 400?MPa resist bulk oxidation with measurements using transmission electron microscope, electron dispersive X-ray spectroscopy, x-ray photoelectric spectroscopy, and secondary ion mass spectrometry confirming this result. Although a surface oxide, Nb{sub 2}O{sub 5}, consumed the top 6–10?nm, we measure less than 1 at. % oxygen and nitrogen in the bulk of the films after the oxidation period. T{sub c} measurements using a SQUID magnetometer indicate that the tensile films maintained a T{sub c} approaching the dirty superconductive limit of 8.4?K after two years of oxidation while maintaining room temperature sheet resistance. This work demonstrates that control over niobium film stress during deposition can prevent bulk oxidation by limiting the vertical grain boundaries ability to oxidize, prolonging the superconductive properties of sputtered niobium when exposed to atmosphere.

David Henry, M., E-mail: mdhenry@sandia.gov; Wolfley, Steve; Monson, Todd; Clark, Blythe G.; Shaner, Eric; Jarecki, Robert [Sandia National Labs, MESA Fabrication Facility PO Box 5800 MS 1084, Albuquerque, New Mexico 87185-1084 (United States)

2014-02-28T23:59:59.000Z

394

Testing for Convergence in Carbon Dioxide Emissions Using a Century of Panel Data  

Science Journals Connector (OSTI)

This paper tests the convergence in per-capita carbon dioxide emissions for a collection of developed and developing...

Joakim Westerlund; Syed A. Basher

2008-05-01T23:59:59.000Z

395

Solar-Powered Electrochemical Oxidation of Organic Compounds Coupled with the Cathodic Production of Molecular Hydrogen  

Science Journals Connector (OSTI)

Solar-Powered Electrochemical Oxidation of Organic Compounds Coupled with the Cathodic Production of Molecular Hydrogen ... The volume percent of the headspace was calculated assuming that it was directly proportional to the ion current measured by the mass spectrometer and that the transfer of all gases through the membrane and their 70 eV electron ionization cross-sections were approximately equivalent. ... In addition, even if hydrogen is mixed with carbon dioxide, CO2 can be readily removed just by chemical absorption process (e.g., flowing carbon dioxide gas through amine solution), which is a typical CO2 separation process in gas turbine power plants. ...

Hyunwoong Park; Chad D. Vecitis; Michael R. Hoffmann

2008-07-26T23:59:59.000Z

396

ARM - Oxides of Nitrogen  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

dioxide and methane, but as you will see they are important contributors to the greenhouse effect. We hope you are getting an understanding of how important all these gases are...

397

Scaling up carbon dioxide capture and storage: From megatons to gigatons Howard J. Herzog  

E-Print Network [OSTI]

Scaling up carbon dioxide capture and storage: From megatons to gigatons Howard J. Herzog MIT Global warming Carbon mitigation Low carbon energy technologies Carbon dioxide capture and storage (CCS) Carbon dioxide (CO2) capture and storage (CCS) is the only technology that can reduce CO2 emissions

398

Regulating Carbon Dioxide Capture and Storage 07-003 April 2007  

E-Print Network [OSTI]

Regulating Carbon Dioxide Capture and Storage by 07-003 April 2007 M.A. de Figueiredo, H.J. Herzog, P.L. Joskow, K.A. Oye, and D.M. Reiner #12;#12;Regulating Carbon Dioxide Capture and Storage M.A. de to be addressed to create an effective regulatory regime for carbon dioxide capture and storage ("CCS"). Legal

399

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis Ram Chandra Sekar  

E-Print Network [OSTI]

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis by Ram Chandra Sekar;2 #12;3 Carbon Dioxide Capture in Coal-Fired Power Plants: A Real Options Analysis by Ram Chandra Sekar technologies are valued using the "real options" valuation methodology in an uncertain carbon dioxide (CO2

400

An idealized assessment of the economics of air capture of carbon dioxide in mitigation policy  

E-Print Network [OSTI]

An idealized assessment of the economics of air capture of carbon dioxide in mitigation policy- ture,'' which refers to the direct removal of carbon dioxide from the ambient air. Air capture has to be changing (e.g., Jones, 2008). By contrast, the capture and storage of carbon dioxide from power plants has

Colorado at Boulder, University of

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Scaling up carbon dioxide capture and storage: From megatons to gigatons Howard J. Herzog  

E-Print Network [OSTI]

Scaling up carbon dioxide capture and storage: From megatons to gigatons Howard J. Herzog MIT warming Carbon mitigation Low carbon energy technologies Carbon dioxide capture and storage (CCS) Carbon. Introduction Carbon dioxide (CO2) capture and storage (CCS) is a process consisting of the separation of CO2

402

Interference of a short-term exposure to nitrogen dioxide with allergic airways responses to allergenic  

E-Print Network [OSTI]

Interference of a short-term exposure to nitrogen dioxide with allergic airways responses, 4 (2002) 251-260" DOI : 10.1080/096293502900000113 #12;Abstract Nitrogen dioxide (NO2) is a common and may depend to concentration of pollutant. Keywords: Mouse model of asthma; nitrogen dioxide; air

Paris-Sud XI, Université de

403

Clathrate hydrate equilibrium data for the gas mixture of carbon dioxide and nitrogen in the  

E-Print Network [OSTI]

1 Clathrate hydrate equilibrium data for the gas mixture of carbon dioxide and nitrogen the mole fraction of CO2 in the carbon dioxide + nitrogen + cyclopentane mixed hydrate phase, both defined;2 {water +carbon dioxide + nitrogen}, the equilibrium pressure of the mixed hydrate is reduced by 0.95 up

Paris-Sud XI, Université de

404

Validation of Ozone Monitoring Instrument nitrogen dioxide columns E. A. Celarier,1  

E-Print Network [OSTI]

Validation of Ozone Monitoring Instrument nitrogen dioxide columns E. A. Celarier,1 E. J. Brinksma the standard nitrogen dioxide (NO2) data product (Version 1.0.), which is based on measurements made), Validation of Ozone Monitoring Instrument nitrogen dioxide columns, J. Geophys. Res., 113, D15S15, doi:10

405

Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring Instrument  

E-Print Network [OSTI]

Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring; published 28 August 2008. [1] We present an approach to infer ground-level nitrogen dioxide (NO2), Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring

Martin, Randall

406

Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates  

E-Print Network [OSTI]

Summary Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates be inferred for important trace gases such as ozone (O3) and nitrogen dioxide (NO2). Chemical transport models.11 to 3.79. Total nitrogen dioxide columns can be retrieved from space in the 405­465 nm window

Haak, Hein

407

A global single-sensor analysis of 20022011 tropospheric nitrogen dioxide trends observed from space  

E-Print Network [OSTI]

A global single-sensor analysis of 2002­2011 tropospheric nitrogen dioxide trends observed from nitrogen dioxide trends observed from space, J. Geophys. Res., 117, D16309, doi:10.1029/2012JD017571. 1. Introduction [2] Nitrogen dioxide (NO2) is one of most prominent air pollutants and is emitted primarily

Haak, Hein

408

Indirect validation of tropospheric nitrogen dioxide retrieved from the OMI satellite instrument: Insight into the seasonal  

E-Print Network [OSTI]

Click Here for Full Article Indirect validation of tropospheric nitrogen dioxide retrieved from nitrogen dioxide retrieved from the OMI satellite instrument: Insight into the seasonal variation of the hydroxyl radical (OH). Nitrogen dioxide (NO2) is an indicator of surface air quality that is associated

Dirksen, Ruud

409

The Implied Cost of Carbon Dioxide under the Cash for Clunkers Christopher R. Knittel  

E-Print Network [OSTI]

The Implied Cost of Carbon Dioxide under the Cash for Clunkers Program Christopher R. Knittel of the implied cost of carbon dioxide reductions under the Cash for Clunker program. The estimates suggest pollutants. Conservative estimates of the implied carbon dioxide cost exceed $365 per ton; best case scenario

Rothman, Daniel

410

Monitoring Molecular Adsorption on High-Area Titanium Dioxide via Modulated Diffraction of Visible Light  

E-Print Network [OSTI]

Letters Monitoring Molecular Adsorption on High-Area Titanium Dioxide via Modulated Diffraction and evaluation of organic chemical adsorption on various titanium dioxide surfaces. The strategy is illustrated thin films of titanium dioxide (TiO2), with micrometer-sized features, were prepared on transparent

411

Carbon Dioxide Footprint of the Northwest Power System Comments submitted by Grant County Public Utility District  

E-Print Network [OSTI]

Carbon Dioxide Footprint of the Northwest Power System Comments submitted by Grant County Public paper: Carbon Dioxide Footprint of the Northwest Power System, dated September 13, 2007. The Grant done a very thorough job of assessing the current and future carbon dioxide footprints of the Northwest

412

of carbon dioxide containing 12 but the low concentration of 14  

E-Print Network [OSTI]

of carbon dioxide containing 12 C and 13 C, but the low concentration of 14 C has made its measurement in carbon dioxide extremely difficult. Using an ultrasensitive technique called saturated carbon at values well below radiocarbon's natural abundance in carbon dioxide. In their technique

Zare, Richard N.

413

Solubility of 5-Hydroxymethylfurfural in Supercritical Carbon Dioxide with and without Ethanol as Cosolvent at (314.1 to 343.2) K  

Science Journals Connector (OSTI)

Solubility of 5-Hydroxymethylfurfural in Supercritical Carbon Dioxide with and without Ethanol as Cosolvent at (314.1 to 343.2) K ... The solubility of 5-hydroxymethylfurfural (HMF) in supercritical carbon dioxide (scCO2) with and without ethanol (mole fraction of ethanol x3 = 0, 0.025, and 0.050) as a cosolvent was measured by the cloud point at temperatures from (314.1 to 343.2) K and pressures from (8.54 to 19.71) MPa. ... As a versatile intermediate, 5-hydroxymethylfurfural (HMF) obtained from renewable biomass resources can be converted into 2,5-furandicarboxyl acid, 2,5-dihydroxymethylfuran, 2,5-bis(hydroxymethyl)tetrahydrofuran, dimethylfuran, and other liquid alkanes by oxidation, hydrogenation, hydrogenolysis, or aldol condensation. ...

Yan Jing; Yucui Hou; Weize Wu; Weina Liu; Baogang Zhang

2010-12-22T23:59:59.000Z

414

Standard test methods for chemical and mass spectrometric analysis of nuclear-grade gadolinium oxide (Gd2O3) powder  

E-Print Network [OSTI]

1.1 These test methods cover procedures for the chemical and mass spectrometric analysis of nuclear-grade gadolinium oxide powders to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Carbon by Direct CombustionThermal Conductivity C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method Total Chlorine and Fluorine by Pyrohydrolysis Ion Selective Electrode C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide Loss of Weight on Ignition 7-13 Sulfur by CombustionIodometric Titration Impurity Elements by a Spark-Source Mass Spectrographic C761 Test Methods for Chemical, Mass Spectrometric, Spectrochemical,Nuclear, and Radiochemical Analysis of Uranium Hexafluoride C1287 Test Method for Determination of Impurities In Uranium Dioxide By Inductively Coupled Plasma Mass Spectrometry Gadolinium Content in Gadolinium Oxid...

American Society for Testing and Materials. Philadelphia

2006-01-01T23:59:59.000Z

415

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide  

Open Energy Info (EERE)

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Project Description Supercritical CO2 is currently becoming a more common fluid for extracting volatile oil and fragrance compounds from various raw materials that are used in perfumery. Furthermore, its use as a heat transmission fluid is very attractive because of the greater uptake capability of heat from hot reservoir rock, compared with that of water. However, one concern was the reactivity of CO2 with clay and rock minerals in aqueous and non-aqueous environments. So if this reaction leads to the formation of water-soluble carbonates, such formation could be detrimental to the integrity of wellbore infrastructure.

416

EIA - International Energy Outlook 2007-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

7 7 Figure 77. World Energy-Related Carbon Dioxide Emissions by Region, 2003-2030 Figure 77 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 78. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 Figure 78 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 79. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the OECD Economies, 2004-2030 Figure 79 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 80. Average Annual Growth in Energy-Related Carbon Dioide Emissions in the Non-OECD Economies, 2004-2030 Figure 80 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 81. World Carbon Dioxide Emissions from Liquids Combustion by Region, 1990-2030 Figure 81 Data. Need help, contact the National Energy Information Center at 202-586-8800.

417

EIA - International Energy Outlook 2008-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

8 8 Figure 75. World Energy-Related Carbon Dioxide Emissions, 2005-2030 Figure 75 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 76. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 Figure 76 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 77. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the OECD Economies, 2005-2030 Figure 77 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 78. U.S. Energy-Related Carbon Dioide Emissions in IEO2007 and IEO2008, 2005-2030 Figure 78 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 79. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the Non-OECD Economies, 2005-2030 Figure 79 Data. Need help, contact the National Energy Information Center at 202-586-8800.

418

Cobalt carbonyl catalyzed olefin hydroformylation in supercritical carbon dioxide  

DOE Patents [OSTI]

A method of olefin hydroformylation is provided wherein an olefin reacts with a carbonyl catalyst and with reaction gases such as hydrogen and carbon monoxide in the presence of a supercritical reaction solvent, such as carbon dioxide. The invention provides higher yields of n-isomer product without the gas-liquid mixing rate limitation seen in conventional Oxo processes using liquid media.

Rathke, J.W.; Klingler, R.J.

1993-03-30T23:59:59.000Z

419

www.sciam.com SCIENTIFIC AMERICAN 49 Pumping carbon dioxide  

E-Print Network [OSTI]

and on substitut- ing noncarbon renewable or nuclear en- ergy sources for fossil fuel (coal, oil and natural gas to be surmountable. Carbon Dioxide Capture the combustion of fossil fuels pro- duces huge quantities of carbon and how these developments might af- fect human health and well-being. Our

O'Donnell, Tom

420

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide  

Broader source: Energy.gov [DOE]

Project Objectives: Elucidate comprehensively the carbonation reaction mechanisms between supercritical carbon dioxide (scCO2) and reservoir rocks consisting of different mineralogical compositions in aqueous and non-aqueous environments at temperatures of up to 250ºC, and to develop chemical modeling of CO2-reservior rock interactions.

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Direct Compressive Measurements of Individual Titanium Dioxide Nanotubes  

E-Print Network [OSTI]

Direct Compressive Measurements of Individual Titanium Dioxide Nanotubes Tolou Shokuhfar the syn- thesis of TiO2 nanotube arrays using an aqueous HF based electrolyte.5 The pH of F ion containing electrolytes was con- trolled to form nanotubes up to a few mi- crometers in length. They reported

Endres. William J.

422

Carbon dioxide flash-freezing applied to ice cream production  

E-Print Network [OSTI]

(cont.) Carbon dioxide is recompressed from 1.97 x 106 Pa (285 psi) to 3.96 x 106 Pa (575 psi). The process is scaled by increasing the number of nozzles to accommodate the desired flow rate. Only 165 nozzles are required ...

Peters, Teresa Baker, 1981-

2006-01-01T23:59:59.000Z

423

The Net Environmental Effects of Carbon Dioxide Reduction Policies  

E-Print Network [OSTI]

of policy measures have been proposed to reduce the emissions of carbon dioxide (CO2). However, policies which reduce CO2 emissions will also decrease the emissions of greenhouse-relevant gases methane are overlooked the net effect of CO2 reduction policies on global warming is understated. Thus, emissions of all

424

Auction design and the market for sulfur dioxide emissions  

E-Print Network [OSTI]

Title IV of the Clean Air Act Amendments of 1990 created a market for electric utility emissions of sulfur dioxide (SO2). Recent papers have argued that flaws in the design of the auctions that are part of this market have ...

Joskow, Paul L.

1996-01-01T23:59:59.000Z

425

Supercritical carbon dioxide behavior in porous silica aerogel  

Science Journals Connector (OSTI)

Supercritical carbon dioxide within a porous silica aerogel behaves as a two-phase system formed by a film next to the silica walls and a remaining fluid phase. Small-angle neutron scattering allows one to determine the structural parameters of the involved phases.

Ciccariello, S.

2010-11-27T23:59:59.000Z

426

Properties of Disorder-Engineered Black Titanium Dioxide Nanoparticles through  

E-Print Network [OSTI]

Properties of Disorder-Engineered Black Titanium Dioxide Nanoparticles through Hydrogenation Xiaobo . Hydrogen adsorption was proposed to proceed through molecular H2 dissoci- ation via a hydride intermediate and subsequent migration, and studies of hydrogen adsorption on (TiO2)N clusters revealed that an initial

427

Distributed feedback laser biosensor incorporating a titanium dioxide nanorod surface  

E-Print Network [OSTI]

Distributed feedback laser biosensor incorporating a titanium dioxide nanorod surface Chun Ge,1 emission wavelength is modulated by the adsorption of biomolecules, whose greater dielectric permittivity- dimensional volume overlap between the DFBLB resonant mode and the region where biomolecule adsorption can oc

Cunningham, Brian

428

The Projected Impacts of Carbon Dioxide Emissions Reduction Legislation on  

E-Print Network [OSTI]

#12;The Projected Impacts of Carbon Dioxide Emissions Reduction Legislation on Electricity Prices on the projected prices of electricity and the use of electric energy in the state of Indiana. The analysis allowances and offsets, shifting production technology from coal-fired baseload resources to a combination

429

Degassing of metamorphic carbon dioxide from the Nepal Himalaya  

E-Print Network [OSTI]

Degassing of metamorphic carbon dioxide from the Nepal Himalaya Matthew J. Evans Chemistry at the foot of the Higher Himalaya near the Main Central Thrust (MCT), Nepal Himalaya. We have sampled hot the Nepal Himalaya, Geochem. Geophys. Geosyst., 9, Q04021, doi:10.1029/2007GC001796. 1. Introduction [2

Derry, Louis A.

430

Climate Change: Global growth of carbon dioxide emissions continues  

Science Journals Connector (OSTI)

After declining 1.5% in 2009, global carbon dioxide emissions rose 5.8% in 2010, the largest yearly jump in two decades, according to a Worldwatch Institute report released on April 28. Worldwatch is a Washington, D.C.-based, environmental think tank. ...

JEFF JOHNSON

2012-05-07T23:59:59.000Z

431

Nanoporous Materials for Carbon Dioxide Separation and Storage  

E-Print Network [OSTI]

, delivery, and micro-devices. In the first part of this dissertation, we will study the synthesis of membranes using an emerging class of nanoporous materials, metal-organic frameworks (MOFs) for carbon dioxide (CO2) separations. Due to the unique chemistry...

Varela Guerrero, Victor

2012-07-16T23:59:59.000Z

432

Conceptual Design for the Pilot-Scale Plutonium Oxide Processing Unit in the Radiochemical Processing Laboratory  

SciTech Connect (OSTI)

This report describes a conceptual design for a pilot-scale capability to produce plutonium oxide for use as exercise and reference materials, and for use in identifying and validating nuclear forensics signatures associated with plutonium production. This capability is referred to as the Pilot-scale Plutonium oxide Processing Unit (P3U), and it will be located in the Radiochemical Processing Laboratory at the Pacific Northwest National Laboratory. The key unit operations are described, including plutonium dioxide (PuO2) dissolution, purification of the Pu by ion exchange, precipitation, and conversion to oxide by calcination.

Lumetta, Gregg J.; Meier, David E.; Tingey, Joel M.; Casella, Amanda J.; Delegard, Calvin H.; Edwards, Matthew K.; Jones, Susan A.; Rapko, Brian M.

2014-08-05T23:59:59.000Z

433

EVALUATION OF PROTON-CONDUCTING MEMBRANES FOR USE IN A SULFUR-DIOXIDE DEPOLARIZED ELECTROLYZER  

SciTech Connect (OSTI)

The chemical stability, sulfur dioxide transport, ionic conductivity, and electrolyzer performance have been measured for several commercially available and experimental proton exchange membranes (PEMs) for use in a sulfur dioxide depolarized electrolyzer (SDE). The SDE's function is to produce hydrogen by using the Hybrid Sulfur (HyS) Process, a sulfur based electrochemical/thermochemical hybrid cycle. Membrane stability was evaluated using a screening process where each candidate PEM was heated at 80 C in 60 wt. % H{sub 2}SO{sub 4} for 24 hours. Following acid exposure, chemical stability for each membrane was evaluated by FTIR using the ATR sampling technique. Membrane SO{sub 2} transport was evaluated using a two-chamber permeation cell. SO{sub 2} was introduced into one chamber whereupon SO{sub 2} transported across the membrane into the other chamber and oxidized to H{sub 2}SO{sub 4} at an anode positioned immediately adjacent to the membrane. The resulting current was used to determine the SO{sub 2} flux and SO{sub 2} transport. Additionally, membrane electrode assemblies (MEAs) were prepared from candidate membranes to evaluate ionic conductivity and selectivity (ionic conductivity vs. SO{sub 2} transport) which can serve as a tool for selecting membranes. MEAs were also performance tested in a HyS electrolyzer measuring current density versus a constant cell voltage (1V, 80 C in SO{sub 2} saturated 30 wt% H2SO{sub 4}). Finally, candidate membranes were evaluated considering all measured parameters including SO{sub 2} flux, SO{sub 2} transport, ionic conductivity, HyS electrolyzer performance, and membrane stability. Candidate membranes included both PFSA and non-PFSA polymers and polymer blends of which the non-PFSA polymers, BPVE-6F and PBI, showed the best selectivity.

Hobbs, D.; Elvington, M.; Colon-Mercado, H.

2009-11-11T23:59:59.000Z

434

Interaction of uranium dioxide with molten zircaloy  

SciTech Connect (OSTI)

Laboratory experiments in which gram quantities of molten Zircaloy were held in contact with UO/sub 2/ for known times (20-600 s) and temperatures (1900-2200/sup 0/C) were conducted. Following each experiment, polished sections of the specimen were examined by optical microscopy, electron microprobe, scanning Auger microscopy, and x-ray fluorescence spectroscopy. Three closely-related experiments were conducted. In the first, the molten metal was contained in a UO/sub 2/ crucible. The dissolution rate in this system was found to be dominated by natural convection in the melt driven by density gradients established by the dissolving uranium. The mechanism of the interaction also was observed to involve penetration and detachment of the grains of the oxide by the molten metal. Similar tests with single-crystal UO/sub 2/ specimens showed similar dissolution behavior. Less severe attack occurred because of the absence of grain boundaries, although subgrain boundaries or dislocations provided high-diffusivity pathways for preferential oxygen removal. In the third type of test, a disk of UO/sub 2/ was placed at the bottom of a ThO/sub 2/ crucible. This arrangement prevented establishment of unstable density gradients in the liquid phase, resulting in a purely diffusion-controlled interaction.

Kim, K.T.

1987-01-01T23:59:59.000Z

435

Process for combined control of mercury and nitric oxide.  

SciTech Connect (OSTI)

Continuing concern about the effects of mercury in the environment may lead to requirements for the control of mercury emissions from coal-fired power plants. If such controls are mandated, the use of existing flue-gas cleanup systems, such as wet scrubbers currently employed for flue-gas desulfurization, would be desirable, Such scrubbers have been shown to be effective for capturing oxidized forms of mercury, but cannot capture the very insoluble elemental mercury (Hg{sup 0}) that can form a significant fraction of the total emissions. At Argonne National Laboratory, we have proposed and tested a concept for enhancing removal of Hg{sup 0}, as well as nitric oxide, through introduction of an oxidizing agent into the flue gas upstream of a scrubber, which readily absorbs the soluble reaction products. Recently, we developed a new method for introducing the oxidizing agent into the flue-gas stream that dramatically improved reactant utilization. The oxidizing agent employed was NOXSORB{trademark}, which is a commercial product containing chloric acid and sodium chlorate. When a dilute solution of this agent was introduced into a gas stream containing Hg{sup 0} and other typical flue-gas species at 300 F, we found that about 100% of the mercury was removed from the gas phase and recovered in process liquids. At the same time, approximately 80% of the nitric oxide was removed. The effect of sulfur dioxide on this process was also investigated and the results showed that it slightly decreased the amount of Hg{sup 0} oxidized while appearing to increase the removal of nitric oxide from the gas phase. We are currently testing the effects of variations in NOXSORB{trademark} concentration, sulfur dioxide concentration, nitric oxide concentration, and reaction time (residence time). Preliminary economic projections based on the results to date indicate that the chemical cost for nitric oxide oxidation could be less than $5,000/ton removed, while for Hg{sup 0} oxidation it would be about $20,000/lb removed.

Livengood, C. D.; Mendelsohn, M. H.

1999-11-03T23:59:59.000Z

436

Platinum supported on titanium–ruthenium oxide is a remarkably stable electrocatayst for hydrogen fuel cell vehicles  

Science Journals Connector (OSTI)

...dioxide in the cathode exit stream during...exceptionally stable electrocatalyst that yields...PEM fuel cell cathodes during potential cycling...Ti0.7W0.3O2 electrocatalyst for proton-exchange...Popov BN ( 2009 ) Development of a titanium...oxide-supported platinum electrocatalyst for polymer electrolyte...

Javier Parrondo; Taehee Han; Ellazar Niangar; Chunmei Wang; Nilesh Dale; Kev Adjemian; Vijay Ramani

2014-01-01T23:59:59.000Z

437

Platinum supported on titanium–ruthenium oxide is a remarkably stable electrocatayst for hydrogen fuel cell vehicles  

Science Journals Connector (OSTI)

...carbon support in PEMFC at fuel starvation . ECS...Ti0.7W0.3O2 electrocatalyst for proton-exchange...Popov BN ( 2009 ) Development of a titanium dioxide-supported...oxide-supported platinum electrocatalyst for polymer electrolyte...Mallouk TE ( 2002 ) Development of supported bifunctional...

Javier Parrondo; Taehee Han; Ellazar Niangar; Chunmei Wang; Nilesh Dale; Kev Adjemian; Vijay Ramani

2014-01-01T23:59:59.000Z

438

Abatement of Air Pollution: Control of Carbon Dioxide Emissions/Carbon  

Broader source: Energy.gov (indexed) [DOE]

Carbon Dioxide Carbon Dioxide Emissions/Carbon Dioxide Budget Trading Program (Connecticut) Abatement of Air Pollution: Control of Carbon Dioxide Emissions/Carbon Dioxide Budget Trading Program (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Connecticut

439

A Theory Concerning the Mechanism of Fatty Acid Oxidation and of Carbon Dioxide Fixation  

Science Journals Connector (OSTI)

...and the United States Public Health Service. Presented at the annual meeting sponsored by the Nutrition...presented at 43rd Annual Meeting, Am. Soc. Biol. Chem...W., Agre, C., and Hanford, W., J. Am. Chem. Soc...

Henry A. Lardy

1952-01-01T23:59:59.000Z

440

On-Road Motor Vehicle Emissions including Ammonia, Sulfur Dioxide and Nitrogen Dioxide Don Stedman, Gary Bishop, Allison Peddle, University of Denver Department of Chemistry and Biochemistry Denver CO 80208. www.feat.biochem.du.edu  

E-Print Network [OSTI]

On-Road Motor Vehicle Emissions including Ammonia, Sulfur Dioxide and Nitrogen Dioxide Don Stedman Nitrogen dioxide: Less than 5% of the NOx BUT with an outstanding peak for the 2007 MY in Fresno 0. Nitrogen dioxide: less than 5% of NOx except the Fresno fleet containing the 2007 Sprinter ambulances. #12;

Denver, University of

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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

Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8: July 16, 2007 8: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector to someone by E-mail Share Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Facebook Tweet about Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Twitter Bookmark Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Google Bookmark Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Delicious Rank Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Digg Find More places to share Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on AddThis.com...

442

Asphalt Oxidation Kinetics and Pavement Oxidation Modeling  

E-Print Network [OSTI]

Most paved roads in the United States are surfaced with asphalt. These asphalt pavements suffer from fatigue cracking and thermal cracking, aggravated by the oxidation and hardening of asphalt. This negative impact of asphalt oxidation on pavement...

Jin, Xin

2012-07-16T23:59:59.000Z

443

GLOBAL BIOGEOCHEMICAL CYCLES, VOL. ???, XXXX, DOI:10.1029/, Global Dry Deposition of Nitrogen Dioxide and1  

E-Print Network [OSTI]

-DERIVED NO2 AND SO2 DRY DEPOSITION 1. Introduction Nitrogen dioxide (NO2) and sulfur dioxide (SO2) haveGLOBAL BIOGEOCHEMICAL CYCLES, VOL. ???, XXXX, DOI:10.1029/, Global Dry Deposition of Nitrogen Dioxide and1 Sulfur Dioxide Inferred from Space-Based2 Measurements3 C. R. Nowlan, 1,2 R. V. Martin, 1,2 S

Martin, Randall

444

Effects of Retrofitting Emission Control Systems on In-Use Heavy Diesel Vehicles  

E-Print Network [OSTI]

D. Carbonyl and nitrogen dioxide emissions from gasoline-in the exhaust to nitrogen dioxide (NO 2 ). NO 2 in turn ispollutants such as nitrogen dioxide (NO 2 ), nitrous acid (

Millstein, Dev E.; Harley, Robert A

2010-01-01T23:59:59.000Z

445

C:\mydocs\WPDOCS\1605B\Electric_eia3.PDF  

Gasoline and Diesel Fuel Update (EIA)

Updated Updated State-level Greenhouse Gas Emission Factors for Electricity Generation March 2001 Energy Information Administration Office of Integrated Analysis and Forecasting Energy Information Administration U.S. Department of Energy Energy Information Administration / Updated State-level Greenhouse Gas Emission Factors for Electricity Generation i TABLE OF CONTENTS 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. UPDATED EMISSIONS COEFFICIENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Carbon Dioxide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Nitrous Oxide and Methane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

446

Development of Geologic Storage Estimates for Carbon Dioxide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the Methodology for the Methodology for Development of Geologic Storage Estimates for Carbon Dioxide Prepared for U.S. Department of Energy National Energy Technology Laboratory Carbon Storage Program September 2010 Summary of the Methodology for Development of Geologic Storage Estimates for Carbon Dioxide 2 Authors: U.S. Department of Energy, National Energy Technology Laboratory/ Strategic Center for Coal/Office of Coal and Power R&D John Litynski U.S. Department of Energy, National Energy Technology Laboratory/ Strategic Center for Coal/Office of Coal and Power R&D/Sequestration Division Dawn Deel Traci Rodosta U. S. Department of Energy, National Energy Technology Laboratory/ Office of Research and Development George Guthrie U. S. Department of Energy, National Energy Technology Laboratory/

447

Cermet Waste Packages Using Depleted Uranium Dioxide and Steel  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CERMET WASTE PACKAGES USING DEPLETED URANIUM DIOXIDE AND STEEL CERMET WASTE PACKAGES USING DEPLETED URANIUM DIOXIDE AND STEEL Charles W. Forsberg Oak Ridge National Laboratory * P.O. Box 2008 Oak Ridge, Tennessee 37831-6180 Tel: (865) 574-6783 Fax: (865) 574-9512 Email: forsbergcw@ornl.gov Manuscript Number: 078 File Name: DuCermet.HLWcon01.article.final Article Prepared for 2001 International High-Level Radioactive Waste Management Conference American Nuclear Society Las Vegas, Nevada April 29-May 3, 2001 Limits: 1500 words; 3 figures Actual: 1450 words; 3 figures Session: 3.6 Disposal Container Materials and Designs The submitted manuscript has been authored by a contractor of the U.S. Government under contract DE-AC05-00OR22725. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution,

448

Optimal Geological Enviornments for Carbon Dioxide Storage in Saline Formations  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

susan D. Hovorka susan D. Hovorka Principal Investigator University of Texas at Austin Bureau of Economic Geology 10100 Burnet Road, Bldg. 130 P.O. Box X Austin, TX 78713 512-471-4863 susan.hovorka@beg.utexas.edu Optimal GeOlOGical envirOnments fOr carbOn DiOxiDe stOraGe in saline fOrmatiOns Background For carbon dioxide (CO 2 ) sequestration to be a successful component of the United States emissions reduction strategy, there will have to be a favorable intersection of a number of factors, such as the electricity market, fuel source, power plant design and operation, capture technology, a suitable geologic sequestration site, and a pipeline right-of-way from the plant to the injection site. The concept of CO 2 sequestration in saline water-bearing formations (saline reservoirs), isolated at

449

Regenerable Immobilized Aminosilane Sorbents for Carbon Dioxide Capture  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Immobilized Aminosilane Sorbents Immobilized Aminosilane Sorbents for Carbon Dioxide Capture Opportunity Research is currently active on the patent-pending technology titled "Regenerable Immobilized Aminosilane Sorbents for Carbon Dioxide Capture." The technology is available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory. Overview Carbon sequestration entails a multi-step process in which CO 2 is first separated / captured from gas streams followed by permanent storage. Carbon capture represents a critical step in the process and accounts for a considerable portion of the overall cost. Newly developed, high capacity amine-based sorbents offer many advantages over existing technology including increased CO

450

Estimation of Carbon Credits in Carbon Dioxide Sequestration Activities  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Credits in Carbon Credits in Carbon Dioxide Sequestration Activities K. Thomas Klasson and Brian H. Davison Oak Ridge National Laboratory * Oak Ridge, Tennessee 37831-6226 Presentation First National Conference on Carbon Sequestration May 14-17, 2001 Washington, DC "The submitted manuscript has been authored by a contractor of the U.S. Government under contract No. DE-AC05-00OR22725. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes." * Managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725 1 Estimation of Carbon Credits in Carbon Dioxide Sequestration Activities

451

Regenerable immobilized aminosilane sorbents for carbon dioxide capture applications  

DOE Patents [OSTI]

A method for the separation of carbon dioxide from ambient air and flue gases is provided wherein a phase separating moiety with a second moiety are simultaneously coupled and bonded onto an inert substrate to create a mixture which is subsequently contacted with flue gases or ambient air. The phase-separating moiety is an amine whereas the second moiety is an aminosilane, or a Group 4 propoxide such as titanium (IV) propoxide (tetrapropyl orthotitanate, C.sub.12H.sub.28O.sub.4Ti). The second moiety makes the phase-separating moiety insoluble in the pores of the inert substrate. The new sorbents have a high carbon dioxide loading capacity and considerable stability over hundreds of cycles. The synthesis method is readily scalable for commercial and industrial production.

Gay, McMahan; Choi, Sunho; Jones, Christopher W

2014-09-16T23:59:59.000Z

452

Historical Sulfur Dioxide Emissions 1850-2000: Methods and Results  

SciTech Connect (OSTI)

A global, self-consistent estimate of sulfur dioxide emissions over the last one and a half century were estimated by using a combination of bottom-up and best available inventory methods including all anthropogenic sources. We find that global sulfur dioxide emissions peaked about 1980 and have generally declined since this time. Emissions were extrapolated to a 1{sup o} x 1{sup o} grid for the time period 1850-2000 at annual resolution with two emission height levels and by season. Emissions are somewhat higher in the recent past in this new work as compared with some comprehensive estimates. This difference is largely due to our use of emissions factors that vary with time to account for sulfur removals from fossil fuels and industrial smelting processes.

Smith, Steven J.; Andres, Robert; Conception , Elvira; Lurz, Joshua

2004-01-25T23:59:59.000Z

453

Convergence behavior of carbon dioxide emissions in China  

Science Journals Connector (OSTI)

Abstract In view of global warming, the concept of a low carbon world economy has been brought to center stage. In this paper, a systematical empirical investigation of the convergence behavior of carbon dioxide emissions in China is conducted based on provincial data for the period of 1995–2011. Using the log t test developed by Phillips and Sul (2007), evident divergence at the country level and convergence to three steady state equilibriums at provincial level was identified. Furthermore, estimates from the ordered logit model uncover important determinants underlying the formation of clubs, including the per capita GDP, energy consumption structure, energy intensity, and initial levels of economic development. The results from this study contribute to a more in-depth understanding of the carbon dioxide emissions status quo in China and serves as reference when launching region-based emissions mitigation policies.

Yiming Wang; Pei Zhang; Dake Huang; Changda Cai

2014-01-01T23:59:59.000Z

454

NETL: Demonstration of a Novel Supercritical Carbon Dioxide Power Cycle  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Oxy-Combustion CO2 Emissions Control Oxy-Combustion CO2 Emissions Control Demonstration of a Novel Supercritical Carbon Dioxide Power Cycle Utilizing Pressurized Oxy-Combustion in Conjunction with Cryogenic Compression Project No.: DE-FE0009395 Southwest Research Institute (SwRI) is developing a novel supercritical carbon dioxide (sCO2) advanced power system utilizing pressurized oxy-combustion in conjunction with cryogenic compression. The proposed power system offers a leap in overall system efficiency while producing an output stream of sequestration ready CO2 at pipeline pressures. The system leverages developments in pressurized oxy-combustion technology and recent developments in sCO2 power cycles to achieve high net cycle efficiencies and produce CO2 at pipeline pressures without requiring additional compression of the flue gas.

455

Chemical Recycling of Carbon Dioxide to Methanol and Dimethyl Ether: From Greenhouse Gas to Renewable, Environmentally Carbon Neutral Fuels and Synthetic Hydrocarbons  

Science Journals Connector (OSTI)

Chemical Recycling of Carbon Dioxide to Methanol and Dimethyl Ether: From Greenhouse Gas to Renewable, Environmentally Carbon Neutral Fuels and Synthetic Hydrocarbons ... (1, 3-6) Methanol and derived dimethyl ether (DME) are also excellent fuels in internal combustion engines (ICE) and in a new generation of direct oxidation methanol fuel cells (DMFC), as well as convenient starting materials for producing light olefins (ethylene and propylene) and subsequently practically any derived hydrocarbon product. ... Methanol produced this way was used in the 19th century for lighting, cooking, and heating purposes but was later replaced by cheaper fuels, especially kerosene. ...

George A. Olah; Alain Goeppert; G. K. Surya Prakash

2008-12-08T23:59:59.000Z

456

A High Pressure Carbon Dioxide Separation Process for IGCC Plants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

High Pressure Carbon Dioxide Separation Process for IGCC Plants High Pressure Carbon Dioxide Separation Process for IGCC Plants 1 A High Pressure Carbon Dioxide Separation Process for IGCC Plants S.S. Tam 1 , M.E. Stanton 1 , S. Ghose 1 , G. Deppe 1 , D.F. Spencer 2 , R.P. Currier 3 , J.S. Young 3 , G.K. Anderson 3 , L.A. Le 3 , and D.J. Devlin 3 1 Nexant, Inc. (A Bechtel Technology & Consulting Company) 45 Fremont St., 7 th Fl., San Francisco, CA 94506 2 SIMTECHE 13474 Tierra Heights Road, Redding, CA 96003 3 Los Alamos National Laboratory P.O. Box 1663 (MS J567), Los Alamos, NM 87545 1.0 INTRODUCTION Under separate contracts from the U.S. Department of Energy, Office of Fossil Energy (DOE- FE), Los Alamos National Laboratory, and a team of SIMTECHE and Nexant (a Bechtel Technology and Consulting Company) are jointly working to develop the proprietary process for

457

Integrating catalytic coal gasifiers with solid oxide fuel cells  

SciTech Connect (OSTI)

A review was conducted for coal gasification technologies that integrate with solid oxide fuel cells (SOFC) to achieve system efficiencies near 60% while capturing and sequestering >90% of the carbon dioxide [1-2]. The overall system efficiency can reach 60% when a) the coal gasifier produces a syngas with a methane composition of roughly 25% on a dry volume basis, b) the carbon dioxide is separated from the methane-rich synthesis gas, c) the methane-rich syngas is sent to a SOFC, and d) the off-gases from the SOFC are recycled back to coal gasifier. The thermodynamics of this process will be reviewed and compared to conventional processes in order to highlight where available work (i.e. exergy) is lost in entrained-flow, high-temperature gasification, and where exergy is lost in hydrogen oxidation within the SOFC. The main advantage of steam gasification of coal to methane and carbon dioxide is that the amount of exergy consumed in the gasifier is small compared to conventional, high temperature, oxygen-blown gasifiers. However, the goal of limiting the amount of exergy destruction in the gasifier has the effect of limiting the rates of chemical reactions. Thus, one of the main advantages of steam gasification leads to one of its main problems: slow reaction kinetics. While conventional entrained-flow, high-temperature gasifiers consume a sizable portion of the available work in the coal oxidation, the consumed exergy speeds up the rates of reactions. And while the rates of steam gasification reactions can be increased through the use of catalysts, only a few catalysts can meet cost requirements because there is often significant deactivation due to chemical reactions between the inorganic species in the coal and the catalyst. Previous research into increasing the kinetics of steam gasification will be reviewed. The goal of this paper is to highlight both the challenges and advantages of integrating catalytic coal gasifiers with SOFCs.

Siefert, N.; Shamsi, A.; Shekhawat, D.; Berry, D.

2010-01-01T23:59:59.000Z

458

Appendix B: CArBon dioxide CApture teChnology SheetS Oxygen PrOductiOn  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Oxygen PrOductiOn Oxygen PrOductiOn B-500 Oxygen PrOductiOn u.S. dePartment Of energy advanced carbOn diOxide caPture r&d PrOgram: technOlOgy uPdate, may 2013 itm Oxygen technOlOgy fOr integratiOn in igcc and Other advanced POwer generatiOn SyStemS primary project goals Air Products and Chemicals set out to design and develop an ion transport membrane (ITM) based on ceramics that selectively transport oxygen (O 2 ) ions when operated at high temperature. This high-temperature process may be integrated with advanced power genera- tion processes that require O 2 as a feedstock, such as integrated gasification combined cycle (IGCC) and other clean energy and industrial applications. technical goals * Design, construct, and operate a 0.1-ton/day (TPD) technology development unit

459

Catalytic oxidation of propylene with air at temperatures near 500° FCatalytic oxidation of propylene with air at temperatures near 500°F?  

E-Print Network [OSTI]

(9 ), propane was relatively difficult to oxidise. Using an arbitrary scale where the ease of oxidation of pentane equals 1 , the following values were reported} ethane, 0 .0 0 1 1; propane, 0 .1 ; butane, 0 .5 ; hexane, 7 .5 * *hs numbers refer.... They reported a 15 percent conversion to acrolein and a U peroent conversion to carbon dioxide. This was the lowest temperature at which the oxidation was reported to have been accomplished, and it appeared that the work of the present thesis in the region...

Dunlop, Donald Dunwody

1953-01-01T23:59:59.000Z

460

High-Temperature Co-electrolysis of Steam and Carbon Dioxide for Direct Production of Syngas; Equilibrium Model and Single-Cell Tests  

SciTech Connect (OSTI)

An experimental study has been completed to assess the performance of single solid-oxide electrolysis cells operating over a temperature range of 800 to 850ºC in the coelectrolysis mode, simultaneously electrolyzing steam and carbon dioxide for the direct production of syngas. The experiments were performed over a range of inlet flow rates of steam, carbon dioxide, hydrogen and nitrogen and over a range of current densities (-0.1 to 0.25 A/cm2) using single electrolyte-supported button electrolysis cells. Steam and carbon dioxide consumption rates associated with electrolysis were measured directly using inlet and outlet dewpoint instrumentation and a gas chromatograph, respectively. Cell operating potentials and cell current were varied using a programmable power supply. Measured values of open-cell potential and outlet gas composition are compared to predictions obtained from a chemical equilibrium coelectrolysis model. Model predictions of outlet gas composition based on an effective equilibrium temperature are shown to agree well with measurements. Cell area-specific resistance values were similar for steam electrolysis and coelectrolysis.

O'Brien, J. E.; Stoots, C. M.; Herring, J. S.; Hartvigsen, J. J.

2007-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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.


461

High-Temperature Co-electrolysis of Carbon Dioxide and Steam for the Production of Syngas; Equilibrium Model and Single-Cell Tests  

SciTech Connect (OSTI)

An experimental study has been completed to assess the performance of single solid-oxide electrolysis cells operating over a temperature range of 800 to 850ºC in the coelectrolysis mode, simultaneously electrolyzing steam and carbon dioxide for the direct production of syngas. The experiments were performed over a range of inlet flow rates of steam, carbon dioxide, hydrogen and nitrogen and over a range of current densities (-0.1 to 0.25 A/cm2) using single electrolyte-supported button electrolysis cells. Steam and carbon dioxide consumption rates associated with electrolysis were measured directly using inlet and outlet dewpoint instrumentation and a gas chromatograph, respectively. Cell operating potentials and cell current were varied using a programmable power supply. Measured values of open-cell potential and outlet gas composition are compared to predictions obtained from a chemical equilibrium coelectrolysis model. Model predictions of outlet gas composition based on an effective equilibrium temperature are shown to agree well with measurements. Area-specific resistance values were similar for steam electrolysis and coelectrolysis.

J. E. O'Brien; C. M. Stoots; G. L. Hawkes; J. S. Herring; J. J. Hartvigsen

2007-06-01T23:59:59.000Z

462

Effect of hydrogen sulfide on chemical looping combustion of coal-derived synthesis gas over bentonite-supported metal-oxide oxygen carriers  

SciTech Connect (OSTI)

The effect of hydrogen sulfide (H{sub 2}S) on the chemical looping combustion of coal-derived synthesis gas with bentonite-supported metal oxides - such as iron oxide, nickel oxide, manganese oxide, and copper oxide - was investigated by thermogravimetric analysis, mass spectrometry, and X-ray photoelectron spectroscopy (XPS). During the reaction with synthesis gas containing H{sub 2}S, metal-oxide oxygen carriers were first reduced by carbon monoxide and hydrogen, and then interacted with H{sub 2}S to form metal sulfide, which resulted in a weight gain during the reduction/sulfidation step. The reduced/sulfurized compounds could be regenerated to form sulfur dioxide and oxides during the oxidation reaction with air. The reduction/oxidation capacities of iron oxide and nickel oxide were not affected by the presence of H{sub 2}S, but both manganese oxide and copper oxide showed decreased reduction/oxidation capacities. However, the rates of reduction and oxidation decreased in the presence of H{sub 2}S for all four metal oxides.

Tian, H.J.; Simonyi, T.; Poston, J.; Siriwardane, R. [US DOE, Morgantown, WV (United States). National Energy Technology Laboratory

2009-09-15T23:59:59.000Z

463

A review on solar thermal syngas production via redox pair-based water/carbon dioxide splitting thermochemical cycles  

Science Journals Connector (OSTI)

Abstract The high power density, ease of transportation and storage and many years of development of internal combustion engine technologies have put liquid hydrocarbon fuels at a privileged position in our energy mix. Therefore processes that use renewable energy sources to produce liquid hydrocarbon fuels from H2O and CO2 are of crucial importance. Concentrated Solar Power (CSP) can be employed as the only energy source for the renewable production of hydrogen from water either indirectly, e.g. by supplying the electricity for electrolysis, or directly by supplying the necessary heat for thermochemically producing hydrogen. Among the various thermochemical cycles tested so far for CSP-driven hydrogen production via water splitting (WS), those based on redox-pair oxide systems, are directly adaptable to carbon dioxide splitting (CDS) and/or combined CO2/H2O splitting for the production of CO or syngas, respectively. The acknowledgement of this fact has recently revived the interest of the scientific community on such technologies. The current article presents the development, evolution and current status of CSP-aided syngas production via such redox-pair-based thermochemical cycles. At first the various redox oxide material compositions tested for water/carbon dioxide splitting are presented and their redox chemistries are discussed. Then the selection of suitable solar reactors is addressed in conjunction with the boundary conditions imposed by the redox systems as well as the heat demands, technical peculiarities and requirements of the cycle steps. The various solar reactor concepts proposed and employed for such reactions and their current status of development are presented. Finally, topics where further work is needed for commercialization of the technology are identified and discussed.

Christos Agrafiotis; Martin Roeb; Christian Sattler

2015-01-01T23:59:59.000Z

464

Characteristics of a Mixed Thorium-Uranium Dioxide High-Burnup Fuel  

SciTech Connect (OSTI)

Future nuclear fuels must satisfy three sets of requirements: longer times between refueling; concerns for weapons proliferation; and development of a spent fuel form more suitable for direct geologic disposal. This project has investigated a fuel consisting of mixed thorium and uranium dioxide to satisfy these requirements. Results using the SCALE 4.3 code system indicated that the mixed Th-U fuel could be burned to 72 MWD/kg or 100 MWD/kg using 25% of 35% UO2 respectively. The uranium remained below 20% total fissile fraction throughout the cycle, making it unusable for weapons. Total plutonium production per MWD was a factor of 4.5 less in the Th-U fuel than in the conventional fuel; Pu-239 production per MWD was a factor of 6.5 less; and the plutonium produced was high in Pu-238, leading to a decay heat 5 times greater than that from plutonium derived from conventional fuel and 40 times greater than weapons grade plutonium. High decay heat would require active cooling of any crude weapon, lest the components surrounding the plutonium be melted. Spontaneous neutron production for plutonium from Th-U fuel was 2.3 times greater than that from conventional fuel and 15 times greater than that from weapons grade plutonium. High spontaneous neutron production drastically limits the probable yield of a crude weapon. Because ThO2 is the highest oxide of thorium, while UO2 can be oxidized further to U3O8, ThO2-UO2 fuel may be a superior wasteform if the spent fuel is ever to be exposed to oxygenated water. Even if the cost of fabricating the mixed Th-U fuel is $100/kg greater, the cost of the Th-U fuel is 13% to 15% less than that of the fuels using uranium only.

J. S. Herring; P. E. MacDonald

1999-06-01T23:59:59.000Z

465

Characteristics of a Mixed Thorium - Uranium Dioxide High-Burnup Fuel  

SciTech Connect (OSTI)

Future nuclear fuel must satisfy three sets of requirements: longer times between refueling; concerns for weapons proliferation; and development of a spent fuel form more suitable for direct geologic disposal. This project has investigated a fuel consisting of mixed thorium and uranium dioxide to satisfy these requirements. Results using the SCALE 4.3 code system indicated that the mixed Th-U fuel could be burned to 72 MWD/kg or 100 MWD/kg using 25% and 35% UO2 respectively. The uranium remained below 20 % total fissile fraction throughout the cycle, making it unusable for weapons. Total plutonium production per MWD was a factor of 4.5 less in the Th-U fuel than in the conventional fuel; Pu-239 production per MWD was a factor of 6.5 less; and the plutonium produced was high in Pu-238, leading to a decay heat 5 times greater than that from plutonium derived from conventional fuel and 40 times greater than weapons grade plutonium. High decay heat would require active cooling of any crude weapon, lest the components surrounding the plutonium be melted. Spontaneous neutron production for plutonium from Th-U fuel was 2.3 times greater than that from conventional fuel and 15 times greater than that from weapons grade plutonium. High spontaneous neutron production drastically limits the probable yield of a crude weapon. Because ThO2 is the highest oxide of thorium, while UO2 can be oxidized further to U3O8, ThO2- UO2 fuel may be a superior wasteform if the spent fuel is ever to be exposed to oxygenated water. Even if the cost of fabricating the mixed Th-U fuel is $100/kg greater, the cost of the Th-U fuel is 13% to 25% less than that of the fuels using uranium only.

Herring, James Stephen; Mac Donald, Philip Elsworth

1999-06-01T23:59:59.000Z

466

Relative and kinetic properties of carbon monoxide and carbon dioxide on a graphite surface  

SciTech Connect (OSTI)

Temperature-programmed desorption (TPD) results after chemisorption of carbon monoxide (CO) and carbon dioxide (CO/sub 2/) on polycrystalline graphite are presented. CO adsorbs onto graphite with a very low sticking coefficient. After CO chemisorption CO (mass 28 amu) desorbs in two temperature regions, between 400 and 700 K and between 1000 and 1300 K, and CO/sub 2/ (mass 44 amu) desorbs below 950 K. The intensity of the CO/sub 2/ signal is less than 1 order of magnitude lower than the CO intensity. After CO/sub 2/ adsorption the major desorption product is CO at high temperatures (1000 < T (K) < 1300), whereas a small amount of CO/sub 2/ desorbs around 450 K. The adsorption of C/sup 16/O/sub 2/ and C/sup 18/O/sub 2/ mixture leads to a nearly total oxygen scrambling of the CO/sub 2/ desorbed. A mechanism for CO and CO/sub 2/ interconversion on the graphite surface is presented in terms of surface oxide species, mainly lactones and semiquinones, and their relative stability. Assignments of the TPD features are proposed accordingly. Reaction studies on the CO/sub 2/ gasification of clean graphite and the CO disproportionation (Boudouard reaction) have been performed. A good agreement is found between the activation energies obtained and the desorption energies calculated from the analysis of the TPD results.

Marchon, B.; Tysoe, W.T.; Carrazza, J.; Heinemann, H.; Somorjai, G.A.

1988-10-06T23:59:59.000Z

467

SYNGAS PRODUCTION VIA HIGH-TEMPERATURE COELECTROLYSIS OF STEAM AND CARBON DIOXIDE  

SciTech Connect (OSTI)

This paper presents results of recent experiments on simultaneous high-temperature electrolysis (coelectrolysis) of steam and carbon dioxide using solid-oxide electrolysis cells. Coelectrolysis is complicated by the fact that the reverse shift reaction occurs concurrently with the electrolytic reduction reactions. All reactions must be properly accounted for when evaluating results. Electrochemical performance of the button cells and stacks were evaluated over a range of temperatures, compositions, and flow rates. The apparatus used for these tests is heavily instrumented, with precision mass-flow controllers, on-line dewpoint and CO2 sensors, and numerous pressure and temperature measurement stations. It also includes a gas chromatograph for analyzing outlet gas compositions. Comparisons of measured compositions to predictions obtained from a chemical equilibrium coelectrolysis model are presented, along with corresponding polarization curves. Results indicate excellent agreement between predicted and measured outlet compositions. Cell area-specific resistance values were found to be similar for steam electrolysis and coelectrolysis. Coelectrolysis significantly increases the yield of syngas over the reverse water gas shift reaction equilibrium composition. The process appears to be a promising technique for large-scale syngas production.

Carl M. Stoots; James E. O'Brien; J. Stephen Herring; Joseph J. Hartvigsen

2009-02-01T23:59:59.000Z

468

Biosynthesis of titanium dioxide nanoparticles using a probiotic from coal fly ash effluent  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: • Metal resistant probiotic species was isolated from coal fly ash effluent site. • Uniform sized anatase form of TiO{sub 2} nanoparticles were synthesized using Propionibacterium jensenii. • Diffraction patterns confirmed the anatase – TiO{sub 2} NPs with average size <80 nm. • TiO{sub 2} nanoparticle incorporated wound dressing exhibits better wound healing. - Abstract: The synthesis of titanium dioxide nanoparticle (TiO{sub 2} NP) has gained importance in the recent years owing to its wide range of potential biological applications. The present study demonstrates the synthesis of TiO{sub 2} NPs by a metal resistant bacterium isolated from the coal fly ash effluent. This bacterial strain was identified on the basis of morphology and 16s rDNA gene sequence [KC545833]. The physico-chemical characterization of the synthesized nanoparticles is completely elucidated by energy dispersive X-ray analysis (EDAX), Fourier transform infrared spectroscopy (FTIR) and transmission and scanning electron microscopy (TEM, SEM). The crystalline nature of the nanoparticles was confirmed by X-RD pattern. Further, cell viability and haemolytic assays confirmed the biocompatible and non toxic nature of the NPs. The TiO{sub 2} NPs was found to enhance the collagen stabilization and thereby enabling the preparation of collagen based biological wound dressing. The paper essentially provides scope for an easy bioprocess for the synthesis of TiO{sub 2} NPs from the metal oxide enriched effluent sample for future biological applications.

Babitha, S; Korrapati, Purna Sai, E-mail: purnasaik.clri@gmail.com

2013-11-15T23:59:59.000Z

469

EIA - Will carbon capture and storage reduce the world's carbon dioxide  

Gasoline and Diesel Fuel Update (EIA)

Will carbon capture and storage reduce the world's carbon dioxide emissions? Will carbon capture and storage reduce the world's carbon dioxide emissions? International Energy Outlook 2010 Will carbon capture and storage reduce the world'ss carbon dioxide emissions? The pursuit of greenhouse gas reductions has the potential to reduce global coal use significantly. Because coal is the most carbon-intensive of all fossil fuels, limitations on carbon dioxide emissions will raise the cost of coal relative to the costs of other fuels. Under such circumstances, the degree to which energy use shifts away from coal to other fuels will depend largely on the costs of reducing carbon dioxide emissions from coal-fired plants relative to the costs of using other, low-carbon or carbon-free energy sources. The continued widespread use of coal could rely on the cost and availability of carbon capture and storage (CCS) technologies that capture carbon dioxide and store it in geologic formations.

470

Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

9: July 23, 2007 9: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 to someone by E-mail Share Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Facebook Tweet about Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Twitter Bookmark Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Google Bookmark Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Delicious Rank Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Digg Find More places to share Vehicle Technologies Office: Fact #479:

471

New Energy Efficient Method for Cleaning Oilfield Brines with Carbon Dioxide  

E-Print Network [OSTI]

NEW ENERGY EFFICIENT METHOD FOR CLEANING OILFIELD BRINES WITH CARBON DIOXIDE C. T. LITTLE A. F. SEIBERT Research Engineer Technical Manager Amoco Oil Company Separations Research Program Naperville, Illinois The University of Texas Austin... dioxide to clean oilfield brines. The new treatment method, described in this work, is actually an enhancement of existing gas flotation technology. The enhancement results from the use of carbon dioxide as the sweeping gas combined with its ability...

Little, C. T.; Seibert, A. F.; Bravo, J. L.; Fair, J. R.

472

Geochemistry of silicate-rich rocks can curtail spreading of carbon dioxide in subsurface aquifers  

E-Print Network [OSTI]

of carbon sequestration and dissolution rates in the subsurface, suggesting that pooled carbon dioxide may remain in the shallower regions of the formation for hundreds to thousands of years. The deeper regions of the reservoir can remain virtually carbon... interests. References 1. Marini, L. Geochemical Sequestration of Carbon Dioxide. (Elsevier 2007). 2. IPCC Special Report on Carbon Dioxide Capture and Storage, edited by Metz B. et al. (Cambridge University Press, UK and New York, USA, 2005). 3. Falkowski...

Cardoso, S. S. S.; Andres, J. T. H.

2014-12-11T23:59:59.000Z

473

Impact of Light-Duty Vehicle Emissions on 21st Century Carbon Dioxide Concentrations  

SciTech Connect (OSTI)

The impact of light-duty passenger vehicle emissions on global carbon dioxide concentrations was estimated using the MAGICC reduced-form climate model combined with the PNNL contribution to the CCSP scenarios product. Our central estimate is that tailpipe light duty vehicle emissions of carbon-dioxide over the 21st century will increase global carbon dioxide concentrations by slightly over 12 ppmv by 2100.

Smith, Steven J.; Kyle, G. Page

2007-08-04T23:59:59.000Z

474

Oxidation of propylene over copper oxide catalysts  

E-Print Network [OSTI]

to the study of propylene oxidation. Dunlop (17) reported that small quantities of iron compounds substantially enhanced the catalytic activity of chromia-alumina catalysts with respect to propylene oxidation, Woodharn (72) has suggested that under... between 360 C and 430oC the rate of propane oxidation decreases as the teznperature is increased, and the rate of conversion to olefins, especially propylene, becomes progressively greater. Above 430 C the proportion of propane converted to ethylene in...

Billingsley, David Stuart

2012-06-07T23:59:59.000Z

475

Mediated electrochemical oxidation of organic wastes using a Co(III) mediator in a neutral electrolyte  

DOE Patents [OSTI]

An electrochemical cell with a Co(III) mediator and neutral pH anolyte provides efficient destruction of organic and mixed wastes. The organic waste is concentrated in the anolyte reservoir, where the cobalt mediator oxidizes the organics and insoluble radioactive species and is regenerated at the anode until all organics are converted to carbon dioxide and destroyed. The neutral electrolyte is non-corrosive, and thus extends the lifetime of the cell and its components.

Balazs, G. Bryan (Livermore, CA); Lewis, Patricia R. (Livermore, CA)

1999-01-01T23:59:59.000Z

476

Surface Science Letters Bulk-defect dependent adsorption on a metal oxide surface  

E-Print Network [OSTI]

-6028(01)01067-6 #12;Titanium dioxide is a wide-band gap semicon- ductor (Egap 3 eV) that can easily be reducedSurface Science Letters Bulk-defect dependent adsorption on a metal oxide surface: S/TiO2(1 1 0) E Abstract The adsorption of molecular sulfur on TiO2(1 1 0)(1 Ã? 1) has been studied with scanning tunneling

Diebold, Ulrike

477

Tunneling oxide engineering by ion implantation of nitrogen for 3D vertical silicon pillar SONOS flash memory  

Science Journals Connector (OSTI)

The electrical characteristics of silicon-oxide-nitride-oxide-silicon (SONOS) flash memory with a 3D vertical silicon pillar structure were studied. As an alternative method for the formation of the tunneling oxide, nitrogen ion implantation was applied to thermally grown pure silicon dioxide with a low energy (5 keV). The devices show significant improvement in the erase characteristics compared to conventional tunneling oxide. Secondary ion mass spectrometry was used to analyze the nitrogen distribution within tunnel oxide, and the improved erase properties can be attributed to the incorporation of about 4.8% nitrogen (2 × 1021 atoms/cm3) into the tunnel oxide formed by nitrogen ion implantation.

Jae-Sub Oh; Seong-Dong Yang; Sang-Youl Lee; Young-Su Kim; Min-Ho Kang; Sung-Kyu Lim; Hi-Deok Lee; Ga-Won Lee

2013-01-01T23:59:59.000Z

478

EIA - The National Energy Modeling System: An Overview 2003-Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Carbon Dioxide and Methane Emissions Carbon Dioxide and Methane Emissions The National Energy Modeling System: An Overview 2003 Carbon Dioxide and Methane Emissions The emissions policy submodule, part of the integrating module, estimates the energy–related emissions of carbon dioxide and methane. Carbon dioxide emissions are dependent on the fossil fuel consumed, the carbon content of the fuel, and the fraction of the fuel consumed in combustion. The product of the carbon dioxide coefficient and the combustion fraction yields a carbon dioxide emission factor. For fuel uses of fossil energy, the combustion fractions are assumed to be 0.99 for liquid fuels and 0.995 for gaseous fuels. The carbon dioxide potential of nonfuel uses of energy, such as asphalt and petrochemical feedstocks, is assumed to be sequestered in the product and not released to the atmosphere. The coefficients for carbon dioxide emissions are updated each year from the Energy Information Administration’s annual, Emissions of Greenhouse Gases in the United States.17

479

CO2 displacement mechanisms: phase equilibria effects and carbon dioxide sequestration studies.  

E-Print Network [OSTI]

??Supercritical carbon dioxide is injected into underground formations to enhance oil recovery and for subsurface sequestration to minimize the impact of CO2 emissions due to… (more)

Pasala, Sangeetha M.

2010-01-01T23:59:59.000Z

480

Storing Industry's Carbon Dioxide in Real Time | U.S. DOE Office...  

Office of Science (SC) Website

Storing Industry's Carbon Dioxide in Real Time Laboratory Policy (LP) LP Home About Laboratory Appraisal Process Laboratory Planning Process Laboratory Directed Research and...

Note: This page contains sample records for the topic "dioxide nitrous oxide" 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.


481

Projects Selected for Safe and Permanent Geologic Storage of Carbon Dioxide  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy announced the selection of 13 projects to develop technologies and methodologies for geologic storage of carbon dioxide.

482

E-Print Network 3.0 - acute sulphur dioxide Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Science and Engineering Summary: ChemE Organic crystals and polymers for a plastic solar cell Donal Kirk ChemE Development of sulphur... dioxide activated carbon for...

483

Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures  

DOE Patents [OSTI]

A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.

Aines, Roger D.; Bourcier, William L.

2014-08-19T23:59:59.000Z

484

Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures  

DOE Patents [OSTI]

A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.

Aines, Roger D. (Livermore, CA); Bourcier, William L. (Livermore, CA)

2010-11-09T23:59:59.000Z

485

Thermal expansion of manganese dioxide using high-temperature in situ X-ray diffraction  

Science Journals Connector (OSTI)

The thermal expansion behaviour of manganese dioxide, an important battery material, is reported using high-temperature in situ X-ray diffraction between 298 and 673 K.

Dose, W.M.

2013-08-03T23:59:59.000Z

486

Impact of carbon dioxide sequestration in depleted gas-condensate reservoirs.  

E-Print Network [OSTI]

??Depleted gas-condensate reservoirs are becoming important targets for carbon dioxide sequestration. Since depleted below the dew point, retrograde condensate has been deposited in the pore… (more)

Ramharack, Richard M.

2010-01-01T23:59:59.000Z

487

Relative Permeability Experiments of Carbon Dioxide Displacing Brine and Their Implications for Carbon Sequestration.  

E-Print Network [OSTI]

??To continue running our civilization on fossil fuels while avoiding global warming and ocean acidification, anthropogenic carbon dioxide must be diverted from atmospheric release. For… (more)

Levine, Jonathan

2011-01-01T23:59:59.000Z

488

Experiment-Based Model for the Chemical Interactions between Geothermal Rocks, Supercritical Carbon Dioxide and Water  

Broader source: Energy.gov [DOE]

Experiment-Based Model for the Chemical Interactions between Geothermal Rocks, Supercritical Carbon Dioxide and Water presentation at the April 2013 peer review meeting held in Denver, Colorado.

489

State Externalities Policy and Carbon Dioxide Emissions: Who Bears the Risks of Future Regulation?  

Science Journals Connector (OSTI)

ITEM...: In January 1991, representatives of 38 state consumer advocacy offices and 17 environmental organizations warned utilities that failures to anticipate future carbon-dioxide-emission cost i...

Ralph Cavanagh; Ashok Gupta; Dan Lashof; Marika Tatsutani

1994-01-01T23:59:59.000Z

490

E-Print Network 3.0 - absorbing sulfur dioxide Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

provides some chemicals which are incompatible with other compounds. Summary: Potassium carbon tetrachloride, carbon dioxide, water Potassium chlorate sulfuric and other acids...

491

E-Print Network 3.0 - ambient sulfur dioxide Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

provides some chemicals which are incompatible with other compounds. Summary: Potassium carbon tetrachloride, carbon dioxide, water Potassium chlorate sulfuric and other acids...

492

Synthesis Gas Production by Combined Reforming of CO2-Containing Natural Gas with Steam and Partial Oxidation in a Multistage Gliding Arc Discharge System  

Science Journals Connector (OSTI)

Synthesis Gas Production by Combined Reforming of CO2-Containing Natural Gas with Steam and Partial Oxidation in a Multistage Gliding Arc Discharge System ... with low-current arcs available in the literature. ... Larkin, D. W.; Caldwell, T. A.; Lobban, L. L.; Mallinson, R. G.Oxygen pathways and carbon dioxide utilization in methane partial oxidation in ambient temperature electric discharges Energy Fuels 1998, 12, 740 ...

Krittiya Pornmai; Narissara Arthiwet; Nongnuch Rueangjitt; Hidetoshi Sekiguchi; Sumaeth Chavadej

2014-07-08T23:59:59.000Z

493

Assessing methane oxidation under landfill covers and its contribution to the above atmospheric CO2 levels: The added value of the isotope  

E-Print Network [OSTI]

biogas fluxes, which was expected in clay covers presenting fissures, through which CH4 is rapidly transported. At shallow depth, more immobile biogas pockets show a higher level of CH4 oxidation., 1998). The main com- ponents of biogas are CH4 (50­60%) and carbon dioxide (CO2; 40­50%). A major

494

A Model of Transient Thermal Transport Phenomena Applied to the Carbonation and Calcination of a Sorbent Particle for Calcium Oxide Looping CO2 Capture  

E-Print Network [OSTI]

looping is selected as the model cycle because of its suitability for solar-driven carbon dioxide captureA Model of Transient Thermal Transport Phenomena Applied to the Carbonation and Calcination of a Sorbent Particle for Calcium Oxide Looping CO2 Capture Lindsey Yue and Wojciech Lipi´nski, The Australian

495

NETL: Electrochemical Membranes for Carbon Dioxide Capture and Power  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electrochemical Membranes for Carbon Dioxide Capture and Power Generation Electrochemical Membranes for Carbon Dioxide Capture and Power Generation Project No.: DE-FE0007634 FuelCell Energy, Inc. has developed a novel system concept for the separation of carbon dioxide (CO2) from greenhouse gas (GHG) emission sources using an electrochemical membrane. The proposed membrane has its genesis from the company's patented Direct FuelCell® (DFC®) technology. The prominent feature of the DFC membrane is its capability to produce power while capturing CO2 from the flue gas from a pulverized coal (PC) plant. The DFC membrane does not require flue gas compression as it operates on the principles of electrochemistry, resulting in net efficiency gains. The membrane utilizes a fuel (different from the plant flue gas, such as coal-derived syngas, natural gas, or a renewable resource) as the driver for the combined carbon capture and electric power generation. The electrochemical membrane consists of ceramic-based layers filled with carbonate salts, separating CO2 from the flue gas. Because of the electrode's high reaction rates, the membrane does not require a high CO2 concentration in its feed gas. The planar geometry of the membrane offers ease of scalability to large sizes suitable for deployment in PC plants, which is an important attribute in membrane design. The membrane has been tested at the laboratory scale, verifying the feasibility of the technology for CO2 separation from simulated flue gases of PC plants as well as combined cycle power plants and other industrial facilities. Fuel Cell Energy, Inc. is advancing the technology to a maturity level suitable for adaption by industry for pilot-scale demonstration and subsequent commercial deployment.

496

Carbon Dioxide Capture and Gas Separation on B80 Fullerene  

Science Journals Connector (OSTI)

Carbon Dioxide Capture and Gas Separation on B80 Fullerene ... All other clusters show the optimized chemisorbed configurations of CO2 captured on B80. ... Although air capture will cost more than capture at power generating facilities when both are operated under the same economic conditions, air capture allows one to apply industrial economies of scale to small and mobile emission sources and enables a partial decoupling of C capture from the energy infrastructure; advantages which may compensate for the intrinsic difficulty of capturing C from air. ...

Qiao Sun; Meng Wang; Zhen Li; Aijun Du; Debra J. Searles

2014-01-09T23:59:59.000Z

497

Capture of carbon dioxide by solid amine sorbents  

Science Journals Connector (OSTI)

The reaction of tetraethylorthrosilcate (TEOS) with y-aminopropyltriethoxysilane (APTS) has produced stable solid amine sorbents for the capture of carbon dioxide. The resulting amine-enriched silicon sorbent (SBA-15) has been proven to be competitive with existing environmental CO2 controlled life sorbents based on the immobilised amine technology. XPS analysis has indicated that the amine groups (N1s Peak) were incorporated onto the surfaces of this amine-based sorbent in the range of 7%. The performance of the SBA-15 was comparable to the commercially available immobilised amine sorbent (IAS).

M.L. Gray; Y. Soong; K.J. Champagne; H.W. Pennline; J. Baltrus; R.W. Stevens Jr.; R. Khatri; S.S.C. Chuang

2004-01-01T23:59:59.000Z

498

Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers  

Broader source: Energy.gov [DOE]

This fact sheet describes a supercritical carbon dioxide turbo-expander and heat exchangers project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Southwest Research Institute, is working to develop a megawatt-scale s-CO2 hot-gas turbo-expander optimized for the highly transient solar power plant profile. The team is also working to optimize novel printed circuit heat exchangers for s-CO2 applications to drastically reduce their manufacturing costs.

499

Project Profile: Direct Supercritical Carbon Dioxide Receiver Development  

Broader source: Energy.gov [DOE]

The National Renewable Energy Laboratory (NREL), under the National Laboratory R&D competitive funding opportunity, is working to develop, characterize, and experimentally demonstrate a novel high-temperature receiver technology using supercritical carbon dioxide (s-CO2) directly as the heat transfer fluid (HTF). A high-temperature receiver that is compatible with s-CO2 enables a significant increase in power cycle efficiency and reduces solar-field size, thereby decreasing the installed cost of concentrating solar power (CSP) systems.

500

Case Study: Transcritical Carbon Dioxide Supermarket Refrigeration Systems  

Broader source: Energy.gov [DOE]

This case study documents one year of operating experience with a transcritical carbon dioxide (TC CO2) booster refrigeration system at Delhaize America’s Hannaford supermarket location in Turner, Maine. This supermarket, which began operation in June 2013, is the first supermarket installation in the U.S. of a TC CO2 booster refrigeration system. We compare refrigeration system performance to that for a supermarket having nearly identical layout and refrigeration loads, in a similar climate and of similar vintage, that uses a conventional hydrofluorocarbon (HFC) refrigerant. Delhaize provided the submetered and utility data used to generate the performance summaries herein.