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Note: This page contains sample records for the topic "ozone carbon monoxide" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


1

Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related Emission Requirements (Ohio) Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related Emission...

2

Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related Emission Requirements (Ohio) Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related Emission Requirements (Ohio) < Back Eligibility Agricultural Commercial Construction Fuel Distributor Industrial Institutional Investor-Owned Utility Local Government Municipal/Public Utility Rural Electric Cooperative State/Provincial Govt Transportation Tribal Government Utility Savings Category Buying & Making Electricity Program Info State Ohio Program Type Environmental Regulations Provider Ohio Environmental Protection Agency This chapter defining the roles of the Ohio Environmental Protection Agency gives specific detail on the regulation point-source air pollution for a variety of industries and pollutants.

3

Carbon Monoxide Safety Tips  

E-Print Network (OSTI)

Protect yourself and your family from the deadly effects of carbon monoxide--a colorless, odorless poisonous gas. This publication describes the warning signs of carbon monoxide exposure and includes a home safety checklist.

Shaw, Bryan W.; Garcia, Monica L.

1999-07-26T23:59:59.000Z

4

Carbon Monoxide Tolerant Electrocatalyst with Low Platinum ...  

Carbon Monoxide Tolerant Electrocatalyst with Low Platinum Loading and a Process for its Preparation Brookhaven National Laboratory. Contact BNL About ...

5

Method of removing carbon monoxide from gases  

DOE Patents (OSTI)

A process and catalyst are disclosed for purifying an atmosphere containing carbon monoxide by passing the atmosphere through a bed of a catalyst of TbO.sub.x, where x = 1.8 to 1.5, which oxidizes the carbon monoxide to carbon dioxide.

Gerstein, Bernard C. (Ames, IA); Macaulay, David B. (Arlington Heights, IL)

1976-06-01T23:59:59.000Z

6

Why sequence carbon monoxide oxidizing thermophiles?  

NLE Websites -- All DOE Office Websites (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

7

Device for staged carbon monoxide oxidation  

DOE Patents (OSTI)

A method and apparatus for selectively oxidizing carbon monoxide in a hydrogen rich feed stream. The method comprises mixing a feed stream consisting essentially of hydrogen, carbon dioxide, water and carbon monoxide with a first predetermined quantity of oxygen (air). The temperature of the mixed feed/oxygen stream is adjusted in a first the heat exchanger assembly (20) to a first temperature. The mixed feed/oxygen stream is sent to reaction chambers (30,32) having an oxidation catalyst contained therein. The carbon monoxide of the feed stream preferentially absorbs on the catalyst at the first temperature to react with the oxygen in the chambers (30,32) with minimal simultaneous reaction of the hydrogen to form an intermediate hydrogen rich process stream having a lower carbon monoxide content than the feed stream. The elevated outlet temperature of the process stream is carefully controlled in a second heat exchanger assembly (42) to a second temperature above the first temperature. The process stream is then mixed with a second predetermined quantity of oxygen (air). The carbon monoxide of the process stream preferentially reacts with the second quantity of oxygen in a second stage reaction chamber (56) with minimal simultaneous reaction of the hydrogen in the process stream. The reaction produces a hydrogen rich product stream having a lower carbon monoxide content than the process stream. The product stream is then cooled in a third heat exchanger assembly (72) to a third predetermined temperature. Three or more stages may be desirable, each with metered oxygen injection.

Vanderborgh, Nicholas E. (Los Alamos, NM); Nguyen, Trung V. (College Station, TX); Guante, Jr., Joseph (Denver, CO)

1993-01-01T23:59:59.000Z

8

Enhanced carbon monoxide utilization in methanation process  

DOE Green Energy (OSTI)

Carbon monoxide - containing gas streams are passed over a catalyst to deposit a surface layer of active surface carbon thereon essentially without the formation of inactive coke. The active carbon is subsequently reacted with steam or hydrogen to form methane. Surprisingly, hydrogen and water vapor present in the feed gas do not adversely affect CO utilization significantly, and such hydrogen actually results in a significant increase in CO utilization.

Elek, Louis F. (Peekskill, NY); Frost, Albert C. (Congers, NY)

1984-01-01T23:59:59.000Z

9

Method and apparatus for selective removal of carbon monoxide  

DOE Patents (OSTI)

There is provided a method and apparatus for treatment of a hydrogen-rich gas to reduce the carbon monoxide content thereof by reacting the carbon monoxide in the gas with an amount of oxygen sufficient to oxidize at least a portion of the carbon monoxide in the presence of a catalyst in a desired temperature range without substantial reaction of hydrogen. The catalyst is an iridium-based catalyst dispersed on, and supported on, a carrier. In the presence of the catalyst, carbon monoxide in a hydrogen-rich feed gas is selectively oxidized such that a product stream is produced with a very low carbon monoxide content.

Borup, Rodney L. (East Rochester, NY); Skala, Glenn W. (Churchville, NY); Brundage, Mark A. (Pittsford, NY); LaBarge, William J. (Bay City, MI)

2000-01-01T23:59:59.000Z

10

Carbon Monoxide in type II supernovae  

E-Print Network (OSTI)

Infrared spectra of two type II supernovae 6 months after explosion are presented. The spectra exhibit a strong similarity to the observations of SN 1987A and other type II SNe at comparable epochs. The continuum can be fitted with a cool black body and the hydrogen lines have emissivities that are approximately those of a Case B recombination spectrum. The data extend far enough into the thermal region to detect emission by the first overtone of carbon monoxide. The molecular emission is modeled and compared with that in the spectra of SN 1987A. It is found that the flux in the CO first overtone is comparable to that found in SN 1987A. We argue that Carbon Monoxide forms in the ejecta of all type II SNe during the first year after explosion.

J. Spyromilio; B. Leibundgut; R. Gilmozzi

2001-07-16T23:59:59.000Z

11

Electrocatalytic reduction of carbon dioxide to carbon monoxide by rhenium and manganese polypyridyl catalysts  

E-Print Network (OSTI)

for reduction of carbon dioxide. IR-SpectroelectrochemicalElectrocatalytic reduction of carbon dioxide mediated by Re(Reduction of Carbon Dioxide to Carbon Monoxide Mediated by (

Smieja, Jonathan Mark

2012-01-01T23:59:59.000Z

12

CO (Carbon Monoxide Mixing Ratio System) Handbook  

Science Conference Proceedings (OSTI)

The main function of the CO instrument is to provide continuous accurate measurements of carbon monoxide mixing ratio at the ARM SGP Central Facility (CF) 60-meter tower (36.607 °N, 97.489 °W, 314 meters above sea level). The essential feature of the control and data acquisition system is to record signals from a Thermo Electron 48C and periodically calibrate out zero and span drifts in the instrument using the combination of a CO scrubber and two concentrations of span gas (100 and 300 ppb CO in air). The system was deployed on May 25, 2005.

Biraud, S

2011-02-23T23:59:59.000Z

13

Search of medical literature for indoor carbon monoxide exposure  

SciTech Connect

This report documents a literature search on carbon monoxide. The search was limited to the medical and toxicological databases at the National Library of Medicine (MEDLARS). The databases searched were Medline, Toxline and TOXNET. Searches were performed using a variety of strategies. Combinations of the following keywords were used: carbon, monoxide, accidental, residential, occult, diagnosis, misdiagnosis, heating, furnace, and indoor. The literature was searched from 1966 to the present. Over 1000 references were identified and summarized using the following abbreviations: The major findings of the search are: (1) Acute and subacute carbon monoxide exposures result in a large number of symptoms affecting the brain, kidneys, respiratory system, retina, and motor functions. (2) Acute and subacute carbon monoxide (CO) poisonings have been misdiagnosed on many occasions. (3) Very few systematic investigations have been made into the frequency and consequences of carbon monoxide poisonings.

Brennan, T.; Ivanovich, M.

1995-12-01T23:59:59.000Z

14

Reduction of Carbon Monoxide. Past Research Summary  

DOE R&D Accomplishments (OSTI)

Research programs for the year on the preparation, characterization, and reactions of binuclear tantalum complexes are described. All evidence to date suggest the following of these dimeric molecules: (1) the dimer does not break into monomers under mild conditions; (2) intermolecular hydride exchange is not negligible, but it is slow; (3) intermolecular non-ionic halide exchange is fast; (4) the ends of the dimers can rotate partially with respect to one another. The binuclear tantalum hydride complexes were found to react with carbon monoxide to give a molecule which is the only example of reduction of CO by a transition metal hydride to give a complex containing a CHO ligand. Isonitrides also reacted in a similar manner with dimeric tantalum hydride. (ATT)

Schrock, R. R.

1982-00-00T23:59:59.000Z

15

Biomass burning sources of nitrogen oxides, carbon monoxide, and non-methane hydrocarbons  

SciTech Connect

Biomass burning is an important source of many key tropospheric species, including aerosols, carbon dioxide (CO{sub 2}), nitrogen oxides (NO{sub {times}}=NO+NO{sub 2}), carbon monoxide (CO), methane (CH{sub 4}), nitrous oxide (N{sub 2}O), methyl bromide (CH{sub 3}Br), ammonia (NH{sub 3}), non-methane hydrocarbons (NMHCs) and other species. These emissions and their subsequent products act as pollutants and affect greenhouse warming of the atmosphere. One important by-product of biomass burning is tropospheric ozone, which is a pollutant that also absorbs infrared radiation. Ozone is formed when CO, CH{sub 4}, and NMHCs react in the presence of NO{sub {times}} and sunlight. Ozone concentrations in tropical regions (where the bulk of biomass burning occurs) may increase due to biomass burning. Additionally, biomass burning can increase the concentration of nitric acid (HNO{sub 3}), a key component of acid rain.

Atherton, C.S.

1995-11-01T23:59:59.000Z

16

Carbon Monoxide Poisoning Avoided Through Weatherization | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Carbon Monoxide Poisoning Avoided Through Weatherization Carbon Monoxide Poisoning Avoided Through Weatherization Carbon Monoxide Poisoning Avoided Through Weatherization October 5, 2010 - 10:56am Addthis Joshua DeLung What does this mean for me? Getting your heating pipes fixed can not only save you money, but also improve your health. "If we'd had a couple cold nights where I would've had to use my heat more than usual, it probably would've put me to sleep and left me there -- it was just too much carbon monoxide coming out in the house," says Mark Pickartz, of Van Buren, Ark. Pickartz's home was weatherized in February by his local community action agency, Crawford-Sebastian Community Development Council (C-SCDC). When energy auditors arrived to his house, they found that his home's heater was severely leaking the poisonous gas. C-SCDC, based in Fort Smith, Ark.,

17

Inhibition of Premixed Carbon Monoxide-Hydrogen-Oxygen ...  

Science Conference Proceedings (OSTI)

... The fuel gas is carbon monoxide (Mathe- son UHP, 99.9% CO, with the sum of ... filters) gener- ates the schlieren image of the flame for capture by a ...

2012-09-07T23:59:59.000Z

18

Photochemistry and Transport of Carbon Monoxide in the Middle Atmosphere  

Science Conference Proceedings (OSTI)

Two-dimensional model calculations of the photochemistry and transport of carbon monoxide in the stratosphere, mesosphere, and lower thermosphere are presented. Results are compared to available observations at midlatitudes, where both ...

S. Solomon; R. R. Garcia; J. J. Olivero; R. M. Bevilacqua; P. R. Schwartz; R. T. Clancy; D. O. Muhleman

1985-05-01T23:59:59.000Z

19

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

20

A Smart Sensor System for Carbon Monoxide Detection  

Science Conference Proceedings (OSTI)

This paper illustrates a smart sensor system for carbon monoxide detection. An innovative technological approach has been pursued to fabricate gas sensors on silicon substrate, compatible with IC fabrication. A mixed analog-digital electronic interface processes ... Keywords: sensor interfaces, sensors, sigma-delta converters

G. C. Cardinali; L. Dori; M. Fiorini; I. Sayago; G. Faglia; C. Perego; G. Sberveglieri; V. Liberali; F. Maloberti; D. Tonietto

1997-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Carbon monoxide study - Seattle, Washington, October 6-November 2, 1977. Part 1. Executive summary report  

SciTech Connect

This report is a summary of EPA 910/9-78-054b, a study of the carbon monoxide problem in downtown Seattle.

Wilson, C.B.; Schweiss, J.W.

1978-12-01T23:59:59.000Z

22

An experimental investigation of the ignition properties of hydrogen and carbon monoxide  

E-Print Network (OSTI)

for syngas turbine applications S.M. Walton *, X. He, B.T. Zigler, M.S. Wooldridge Department of Mechanical of simulated syngas mixtures of hydrogen (H2), carbon monoxide (CO), oxygen (O2), nitrogen (N2), and carbon. Keywords: Carbon monoxide; Hydrogen; Syngas; Ignition; Rapid compression facility 1. Introduction Syngas

Wooldridge, Margaret S.

23

Transient PrOx carbon monoxide measurement, control, and optimization  

DOE Green Energy (OSTI)

Fuel processing systems for low temperature polymer electrolyte membrane (PEM) fuel cell systems require control of the carbon monoxide concentration to less than 100 ppm to 10 ppm in the anode feed. Conventional hydrocarbon fuel processors use a water-gas shift (WGS) reactor to react CO with water to form H2 and reduce the CO concentration. The CO conversion is limited by equilibrium at the outlet temperature of the WGS reactor. The WGS outlet CO concentration can range from over 1% to 2000 ppm depending on the system and its operating parameters. At these concentrations, CO poisons low temperature PEM fuel cells and the concentrations needs to be reduced further.

Inbody, M. A. (Michael A.); Borup, R. L. (Rodney L.); Tafoya, J. (Jose I.)

2002-01-01T23:59:59.000Z

24

Methanation of gas streams containing carbon monoxide and hydrogen  

DOE Patents (OSTI)

Carbon monoxide-containing gas streams having a relatively high concentration of hydrogen are pretreated so as to remove the hydrogen in a recoverable form for use in the second step of a cyclic, essentially two-step process for the production of methane. The thus-treated streams are then passed over a catalyst to deposit a surface layer of active surface carbon thereon essentially without the formation of inactive coke. This active carbon is reacted with said hydrogen removed from the feed gas stream to form methane. The utilization of the CO in the feed gas stream is appreciably increased, enhancing the overall process for the production of relatively pure, low-cost methane from CO-containing waste gas streams.

Frost, Albert C. (Congers, NY)

1983-01-01T23:59:59.000Z

25

717 Notices to Readers Carbon Monoxide Poisoning Deaths  

E-Print Network (OSTI)

Carbon Monoxide monoxide Poisoning (CO) is an odorless, — Continued colorless, nonirritating gas produced by the incomplete combustion of carbon-based fuels. CO exposure is responsible for more fatal unintentional poisonings in the United States than any other agent, with the highest incidence occurring during the cold-weather months (1). Although most of these deaths occur in residences or motor vehicles (2), two incidents among campers in Georgia illustrate the danger of CO in outdoor settings. This report describes the two incidents, which resulted in six deaths, and provides recommendations for avoiding CO poisoning in outdoor settings. Cases 1–4. On the afternoon of March 14, 1999, a 51-year-old man, his 10-year-old son, a 9-year-old boy, and a 7-year-old girl were found dead inside a zipped-up, 10-foot by 14-foot, two-room tent at their campsite in southeast Georgia (a pet dog also died). A propane gas stove, still burning, was found inside the tent; the stove apparently had been brought inside to provide warmth. The occupants had died during the night. Postmortem carboxyhemoglobin (COHb) levels measured 50%, 63%, 69%, and 63%, respectively, in the four decedents (in the general U.S. population, COHb concentrations

Basidiobolomycosis Arizona; North Carolinia

1999-01-01T23:59:59.000Z

26

Interaction of carbon monoxide and hydrogen with the (1010) face of ruthenium  

DOE Green Energy (OSTI)

The interaction was studied at 23.5, 200, and -135/sup 0/C with low energy electron diffraction (LEED) and Auger electron spectroscopy. (AES). Carbon monoxide adsorbs associatively at 23.5/sup 0/C, but is apparently dissociated by the LEED beam and hydrogen adsorbed from the ambient after a few minutes for less than 10 Langmuirs of carbon monoxide. For large doses of carbon monoxide at 23.5/sup 0/C, 10 Langmuirs or more, the LEED beam does not disociate carbon monoxide, but carbon monoxide and hydrogen adsorbed from the ambient do appear to be removed from the surface by the LEED beam. Carbon monoxide and hydrogen on the surface together will react and form surface complexes with distinctive LEED patterns at 23.5/sup 0/C though some of the interactions appear to be LEED beam induced. If sufficient hydrogen is present, some of these complexes are lost from the surface probably as methane and water. Carbon monoxide will react with itself and hydrogen at 23.5/sup 0/C with carbon being lost from the surface probably as carbon dioxide. At 200/sup 0/C, neither carbon monoxide nor hydrogen will absorb on Ru (1010) in significant amounts at the low dose pressures used. However, if the Ru(1010) crystal is allowed to cool below 70/sup 0/C, ambient carbon monoxide and hydrogen will adsorb on Ru (1010) and form LEED patterns like those formed at 23.5/sup 0/C. At -135/sup 0/C, carbon monoxide will react with itself and hydrogen readily most of the time producing surface complexes with distinctive LEED paterns. If a moderate amount of hydrogen is present, some of these complexes are lost from the surface, probably as methane. If a large amount of hydrogen is present, some of these complexes are lost from the surface probably as carbon dioxdie. 17 figures, 8 tables.

Tomcsik, T.L.

1979-01-01T23:59:59.000Z

27

Size Effect of Ruthenium Nanoparticles in Catalytic Carbon Monoxide Oxidation  

Science Conference Proceedings (OSTI)

Carbon monoxide oxidation over ruthenium catalysts has shown an unusual catalytic behavior. Here we report a particle size effect on CO oxidation over Ru nanoparticle (NP) catalysts. Uniform Ru NPs with a tunable particle size from 2 to 6 nm were synthesized by a polyol reduction of Ru(acac){sub 3} precursor in the presence of poly(vinylpyrrolidone) stabilizer. The measurement of catalytic activity of CO oxidation over two-dimensional Ru NPs arrays under oxidizing reaction conditions (40 Torr CO and 100 Torr O{sub 2}) showed an activity dependence on the Ru NP size. The CO oxidation activity increases with NP size, and the 6 nm Ru NP catalyst shows 8-fold higher activity than the 2 nm catalysts. The results gained from this study will provide the scientific basis for future design of Ru-based oxidation catalysts.

Joo, Sang Hoon; Park, Jeong Y.; Renzas, J. Russell; Butcher, Derek R.; Huang, Wenyu; Somorjai, Gabor A.

2010-04-04T23:59:59.000Z

28

Cyclic process for producing methane from carbon monoxide with heat removal  

DOE Patents (OSTI)

Carbon monoxide-containing gas streams are converted to methane by a cyclic, essentially two-step process in which said carbon monoxide is disproportionated to form carbon dioxide and active surface carbon deposited on the surface of a catalyst, and said carbon is reacted with steam to form product methane and by-product carbon dioxide. The exothermic heat of reaction generated in each step is effectively removed during each complete cycle so as to avoid a build up of heat from cycle-to-cycle, with particularly advantageous techniques being employed for fixed bed, tubular and fluidized bed reactor operations.

Frost, Albert C. (Congers, NY); Yang, Chang-lee (Spring Valley, NY)

1982-01-01T23:59:59.000Z

29

Production of carbon monoxide-free hydrogen and helium from a high-purity source  

DOE Patents (OSTI)

The invention provides vacuum swing adsorption processes that produce an essentially carbon monoxide-free hydrogen or helium gas stream from, respectively, a high-purity (e.g., pipeline grade) hydrogen or helium gas stream using one or two adsorber beds. By using physical adsorbents with high heats of nitrogen adsorption, intermediate heats of carbon monoxide adsorption, and low heats of hydrogen and helium adsorption, and by using vacuum purging and high feed stream pressures (e.g., pressures of as high as around 1,000 bar), pipeline grade hydrogen or helium can purified to produce essentially carbon monoxide -free hydrogen and helium, or carbon monoxide, nitrogen, and methane-free hydrogen and helium.

Golden, Timothy Christopher (Allentown, PA); Farris, Thomas Stephen (Bethlehem, PA)

2008-11-18T23:59:59.000Z

30

Modeling Ambient Carbon Monoxide Trends to Evaluate Mobile Source Emissions Reductions  

Science Conference Proceedings (OSTI)

Regression models have been used with poor success to detect the effect of emission control programs in ambient concentration measurements of carbon monoxide. An advanced CO regression model is developed whose form is based on an understanding of ...

Robin L. Dennis; Mary W. Downton

1987-10-01T23:59:59.000Z

31

Basin-Scale Carbon Monoxide Distributions in the Parallel Ocean Program  

Science Conference Proceedings (OSTI)

As a primary photochemical constituent in upper-ocean and tropospheric geocycling, carbon monoxide is of interest to a variety of global change research communities. Dynamic three-dimensional simulations of its marine concentration patterns, ...

Shaoping Chu; Scott Elliott; David Erickson

2007-12-01T23:59:59.000Z

32

Discovery of carbon monoxide in the upper atmosphere of Pluto  

E-Print Network (OSTI)

Pluto's icy surface has changed colour and its atmosphere has swelled since its last closest approach to the Sun in 1989. The thin atmosphere is produced by evaporating ices, and so can also change rapidly, and in particular carbon monoxide should be present as an active thermostat. Here we report the discovery of gaseous CO via the 1.3mm wavelength J=2-1 rotational transition, and find that the line-centre signal is more than twice as bright as a tentative result obtained by Bockelee-Morvan et al. in 2000. Greater surface-ice evaporation over the last decade could explain this, or increased pressure could have caused the atmosphere to expand. The gas must be cold, with a narrow line-width consistent with temperatures around 50 K, as predicted for the very high atmosphere, and the line brightness implies that CO molecules extend up to approximately 3 Pluto radii above the surface. The upper atmosphere must have changed markedly over only a decade since the prior search, and more alterations could occur by the...

Greaves, J S; Friberg, P

2011-01-01T23:59:59.000Z

33

Substantially isotactic, linear, alternating copolymers of carbon monoxide and an olefin  

DOE Patents (OSTI)

The compound, [Pd(Me-DUPHOS)(MeCN){sub 2}](BF{sub 4}){sub 2}, [Me-DUPHOS: 1,2-bis(2,5-dimethylphospholano)benzene] is an effective catalyst for the highly enantioselective, alternating copolymerization of olefins, such as aliphatic {alpha}-olefins, with carbon monoxide to form optically active, isotactic polymers which can serve as excellent starting materials for the synthesis of other classes of chiral polymers. For example, the complete reduction of a propylene-carbon monoxide copolymer resulted in the formation of a novel, optically active poly(1,4-alcohol). Also, the previously described catalyst is a catalyst for the novel alternating isomerization cooligomerization of 2-butene with carbon monoxide to form optically active, isotactic poly(1,5-ketone).

Sen, A.; Jiang, Z.

1996-05-28T23:59:59.000Z

34

Substantially isotactic, linear, alternating copolymers of carbon monoxide and an olefin  

DOE Patents (OSTI)

The compound, [Pd(Me-DUPHOS)(MeCN).sub.2 ](BF.sub.4).sub.2, [Me-DUPHOS: 1,2-bis(2,5-dimethylphospholano)benzene] is an effective catalyst for the highly enantioselective, alternating copolymerization of olefins, such as aliphatic .alpha.-olefins, with carbon monoxide to form optically active, isotactic polymers which can serve as excellent starting materials for the synthesis of other classes of chiral polymers. For example, the complete reduction of a propylene-carbon monoxide copolymer resulted in the formation of a novel, optically active poly(1,4-alcohol). Also, the previously described catalyst is a catalyst for the novel alternating isomerization cooligomerization of 2-butene with carbon monoxide to form optically active, isotactic poly(1,5-ketone)

Sen, Ayusman (State College, PA); Jiang, Zhaozhong (State College, PA)

1996-01-01T23:59:59.000Z

35

A Micro-Computer-Based Fuel Optimization System Utilizing In-Situ Measurement of Carbon Monoxide  

E-Print Network (OSTI)

A microcomputer-based control system utilizing a distributed intelligence architecture has been developed to control combustion in hydrocarbon fuel-fired boilers and heaters to significantly reduce fuel usage. The system incorporates a unique flue gas analyzer that mounts directly in the flue or stack to continuously measure carbon monoxide, unburned hydrocarbons, opacity and temperature. The control console interfaces directly with the boiler's existing analog control system to provide precise air fuel ratio control based on carbon monoxide measurements. Significant decreases in excess air result in reduced fuel usage while meeting steam demand. Actual performance on industrial boilers shows increases in efficiency of from 1% to 3% with substantial fuel savings.

DeVivo, D. G.

1980-01-01T23:59:59.000Z

36

Process for producing methane from gas streams containing carbon monoxide and hydrogen  

DOE Patents (OSTI)

Carbon monoxide-containing gas streams are passed over a catalyst capable of catalyzing the disproportionation of carbon monoxide so as to deposit a surface layer of active surface carbon on the catalyst essentially without formation of inactive coke thereon. The surface layer is contacted with steam and is thus converted to methane and CO.sub.2, from which a relatively pure methane product may be obtained. While carbon monoxide-containing gas streams having hydrogen or water present therein can be used only the carbon monoxide available after reaction with said hydrogen or water is decomposed to form said active surface carbon. Although hydrogen or water will be converted, partially or completely, to methane that can be utilized in a combustion zone to generate heat for steam production or other energy recovery purposes, said hydrogen is selectively removed from a CO--H.sub.2 -containing feed stream by partial oxidation thereof prior to disproportionation of the CO content of said stream.

Frost, Albert C. (Congers, NY)

1980-01-01T23:59:59.000Z

37

Gold Nanoparticles Supported on Carbon Nitride: Influence of Surface Hydroxyls on Low Temperature Carbon Monoxide Oxidation  

SciTech Connect

This paper reports the synthesis of 2.5 nm gold clusters on the oxygen free and chemically labile support carbon nitride (C3N4). Despite having small particle sizes and high enough water partial pressure these Au/C3N4 catalysts are inactive for the gas phase and liquid phase oxidation of carbon monoxide. The reason for the lack of activity is attributed to the lack of surface OH groups on the C3N4. These OH groups are argued to be responsible for the activation of CO in the oxidation of CO. The importance of basic OH groups explains the well document dependence of support isoelectric point versus catalytic activity.

Singh, Joseph A [ORNL; Dudney, Nancy J [ORNL; Li, Meijun [ORNL; Overbury, Steven {Steve} H [ORNL; Veith, Gabriel M [ORNL

2012-01-01T23:59:59.000Z

38

Compressed Air Sample Technology for Isotopic Analysis of Atmospheric Carbon Monoxide  

Science Conference Proceedings (OSTI)

A methodology for the collection of large (1000 L) air samples for isotopic analysis of atmospheric carbon monoxide is presented. A low-background, high-pressure, high-flow sampling system with a residual background of less than 2 ppbv CO has ...

John E. Mak; Carl A. M. Brenninkmeijer

1994-04-01T23:59:59.000Z

39

Indonesia Forest Fires Exacerbate Carbon Monoxide Pollution over Peninsular Malaysia during July to September 2005  

Science Conference Proceedings (OSTI)

Wind carried the smoke further afield from forest fires in Sumatra caused worse air pollution in Malaysia reached extremely hazardous levels and forced schools and an airport to close. There were 3,258 'hot spots' recorded by NOAA satellites in the province ... Keywords: AIRS, Carbon monoxide, Peninsular

Jasim M. Rajab; M. Z. MatJafri; H. S. Lim; K. Abdullah

2009-08-01T23:59:59.000Z

40

Molten metal reactor and method of forming hydrogen, carbon monoxide and carbon dioxide using the molten alkaline metal reactor  

Science Conference Proceedings (OSTI)

A molten metal reactor for converting a carbon material and steam into a gas comprising hydrogen, carbon monoxide, and carbon dioxide is disclosed. The reactor includes an interior crucible having a portion contained within an exterior crucible. The interior crucible includes an inlet and an outlet; the outlet leads to the exterior crucible and may comprise a diffuser. The exterior crucible may contain a molten alkaline metal compound. Contained between the exterior crucible and the interior crucible is at least one baffle.

Bingham, Dennis N.; Klingler, Kerry M.; Turner, Terry D.; Wilding, Bruce M.

2012-11-13T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

In situ gasification process for producing product gas enriched in carbon monoxide and hydrogen  

SciTech Connect

The present invention is directed to an in situ coal gasification process wherein the combustion zone within the underground coal bed is fed with air at increasing pressure to increase pressure and temperature in the combustion zone for forcing product gases and water naturally present in the coal bed into the coal bed surrounding the combustion zone. No outflow of combustion products occurs during the build-up of pressure and temperature in the combustion zone. After the coal bed reaches a temperature of about 2000.degree. F and a pressure in the range of about 100-200 psi above pore pressure the airflow is terminated and the outflow of the combustion products from the combustion zone is initiated. The CO.sub.2 containing gaseous products and the water bleed back into the combustion zone to react endothermically with the hot carbon of the combustion zone to produce a burnable gas with a relatively high hydrogen and carbon monoxide content. About 11 to 29 percent of the gas recovered from the combustion zone is carbon monoxide which is considerably better than the 4 to 10 percent carbon monoxide obtained by employing previously known coal gasification techniques.

Capp, John P. (Morgantown, WV); Bissett, Larry A. (Morgantown, WV)

1978-01-01T23:59:59.000Z

42

Impact of emissions, chemistry, and climate on atmospheric carbon monoxide : 100-year predictions from a global chemistry-climate model  

E-Print Network (OSTI)

The possible trends for atmospheric carbon monoxide in the next 100 yr have been illustrated using a coupled atmospheric chemistry and climate model driven by emissions predicted by a global economic development model. ...

Wang, Chien.; Prinn, Ronald G.

43

A survey of carbon monoxide and nitrogen dioxide in indoor ice arenas in Vermont  

Science Conference Proceedings (OSTI)

Because of the history of health problems traceable to the exhaust of ice resurfacing machines, state sanitarians used detector tubes to measure carbon monoxide (CO) and nitrogen dioxide (NO[sub 2]) levels in enclosed ice arenas in Vermont during high school hockey games. Five of eight arenas had average game CO measurements of 30 ppm carbon monoxide or more. Two of the three periods of play had average CO readings in excess of 100 ppm in one arena. Only six arenas had the complete series of nitrogen dioxide measurements. One had an average game NO[sub 2] level of 1.2 ppm. Two had one or more periods of play that averaged in excess of 0.5 ppm. Despite the ample documentation of the hazards of operating combustion-powered resurfacing machines inside enclosed ice arenas, a significant portion of the arenas had undesirable levels of carbon monoxide or nitrogen dioxide. Ice arenas should be routinely monitored for air contaminants. Considerations should be given to the purchase of electric ice resurfacing machines for new arenas and arenas that have air contamination that cannot be resolved with ventilation.

Paulozzi, L.J. (Vermont Health Dept., Burlington, VT (United States)); Spengler, R.F.; Vogt, R.L.; Carney, J.K.

1993-12-01T23:59:59.000Z

44

Reaction of uranium oxides with chlorine and carbon or carbon monoxide to prepare uranium chlorides  

SciTech Connect

The preferred preparation concept of uranium metal for feed to an AVLIS uranium enrichment process requires preparation of uranium tetrachloride (UCI{sub 4}) by reacting uranium oxides (UO{sub 2}/UO{sub 3}) and chlorine (Cl{sub 2}) in a molten chloride salt medium. UO{sub 2} is a very stable metal oxide; thus, the chemical conversion requires both a chlorinating agent and a reducing agent that gives an oxide product which is much more stable than the corresponding chloride. Experimental studies in a quartz reactor of 4-cm ID have demonstrated the practically of some chemical flow sheets. Experimentation has illustrated a sequence of results concerning the chemical flow sheets. Tests with a graphite block at 850{degrees}C demonstrated rapid reactions of Cl{sub 2} and evolution of carbon dioxide (CO{sub 2}) as a product. Use of carbon monoxide (CO) as the reducing agent also gave rapid reactions of Cl{sub 2} and formation of CO{sub 2} at lower temperatures, but the reduction reactions were slower than the chlorinations. Carbon powder in the molten salt melt gave higher rates of reduction and better steady state utilization of Cl{sub 2}. Addition of UO{sub 2} feed while chlorination was in progress greatly improved the operation by avoiding the plugging effects from high UO{sub 2} concentrations and the poor Cl{sub 2} utilizations from low UO{sub 2} concentrations. An UO{sub 3} feed gave undesirable effects while a feed of UO{sub 2}-C spheres was excellent. The UO{sub 2}-C spheres also gave good rates of reaction as a fixed bed without any molten chloride salt. Results with a larger reactor and a bottom condenser for volatilized uranium show collection of condensed uranium chlorides as a loose powder and chlorine utilizations of 95--98% at high feed rates. 14 refs., 7 figs., 14 tabs.

Haas, P.A.; Lee, D.D.; Mailen, J.C.

1991-11-01T23:59:59.000Z

45

Thermal device and method for production of carbon monoxide and hydrogen by thermal dissociation of hydrocarbon gases  

DOE Patents (OSTI)

Carbon monoxide is produced in a fast quench reactor. The production of carbon monoxide includes injecting carbon dioxide and some air into a reactor chamber having a high temperature at its inlet and a rapidly expanding a reactant stream, such as a restrictive convergent-divergent nozzle at its outlet end. Carbon dioxide and other reactants such as methane and other low molecular weight hydrocarbons are injected into the reactor chamber. Other gas may be added at different stages in the process to form a desired end product and prevent back reactions. The resulting heated gaseous stream is then rapidly cooled by expansion of the gaseous stream.

Detering, Brent A. (Idaho Falls, ID); Kong, Peter C. (Idaho Falls, ID)

2001-01-01T23:59:59.000Z

46

Interaction and reactivity of nitric oxide and carbon monoxide on ruthenium surfaces  

DOE Green Energy (OSTI)

A multifaceted investigation of the reduction of nitric oxide by carbon monoxide using a ruthenium (102) single crystal catalyst in the pressure range 10/sup -3/ to 10 Torr and temperature range of 300 to 475/sup 0/C has been undertaken. Kinetic and isotopic results indicate that the reaction products CO/sub 2/ and N/sub 2/ were produced via two reaction mechanisms. Using a reducing gas mixture (low P/sub NO//P/sub CO/ ratio) a two site mechanism was operative involving NO dissociation. The carbon monoxide kinetic order varied from +1 to -3 and the nitric oxide order varied from +1 to 0. The catalyst under these conditions was determined to be metallic ruthenium with oxygen bonded within the first surface layer. The oxygen was unreactive and formed a (1 x 3)-0 LEED pattern. Under oxidizing conditions (high P/sub NO//P/sub CO/ ratio) the catalyst was ruthenium dioxide and the functional mechanism under these reaction conditions yielded a nitric oxide order of +2 to -4. Inclusion of a site poisoning mechanism under reducing conditions and an RuO/sub 2/ growth mechanism involving ruthenium cation transfer under oxidizing conditions into the kinetic rate laws led to an overall rate law which could be fit to the carbon monoxide and nitric oxide order plots. Using isotopically oxygen labelled reactants, it was observed that the three possible isotopes of carbon dioxide were produced. A ..gamma..-CO surface species is postulated as an intermediate in the exchange process. The reaction was observed to be initially surface structure insensitive and the reaction kinetics were derived using a Langmuir-Hinshelwood formalism.

Quick, E.E.

1980-03-01T23:59:59.000Z

47

EXAFS of carbon monoxide oxidation on supported Pt fuel cell electrocatalysts  

Science Conference Proceedings (OSTI)

The potential dependence of the extended X-ray absorption fine structure (EXAFS) obtained at the Pt L{sub III} absorption edge for a carbon supported Pt electrocatalyst exposed to carbon monoxide is presented. The data have been analyzed using the difference file method to separate the dominant contributions of the Pt neighbors from contributions to the EXAFS from the adsorbed species. The presence of adsorbed CO is clearly observed with a Pt-C distance of 1.85 {angstrom} at potentials less than 0.5 V vs. RHE. Increasing the potential above 0.5 V resulted first in the removal of the adsorbed CO and at more positive potentials, e.g., 1.05 V, in the formation of an oxide layer, as evidenced by the presence of a Pt-O coordination shell at 2.00 {angstrom}. These results demonstrate that in situ EXAFS of supported Pt electrocatalysts may be used to probe adsorbate structures.

Maniguet, S.; Mathew, R.J.; Russell, A.E.

2000-03-09T23:59:59.000Z

48

Role of carboxydobacteria in consumption of atmospheric carbon monoxide by soil  

Science Conference Proceedings (OSTI)

The carbon monoxide consumption rates of the carboxydobacteria Pseudomonas (Seliberia) carboxydohydrogena, P. carboxydovorans, and P. carboxydoflava were measured at high (50%) and low (0.5 ..mu..l liter/sup -1/) mixing ratios of CO in air. CO was only consumed when the bacteria had been grown under CO-autotrophic conditions. At low cell densities the CO comsumption rates measured at low CO mixing ratios were similar in cell suspensions and in mixtures of bacteria in soil. CO consumption observed in natural soil (loess, eolian sand, chernozem) as well as in suspensions or soil mixtures of carboxydobacteria showed Michaelis-Menten kinetics. Considering the difference of the K/sub m/, values and the observed V/sub max/ values, carboxydobacteria cannot contribute significantly to the consumption of atmospheric CO.

Conrad, R. (Max-Planck-Institut fuer Chemie, Mainz, Germany); Meyer, O.; Seiler, W.

1981-08-01T23:59:59.000Z

49

Retrieval of Tropospheric Carbon Monoxide Profiles from High-Resolution Interferometer Observations: A New Digital Gas Correlation (DGC)Method and Applications  

Science Conference Proceedings (OSTI)

Global tropospheric carbon monoxide (CO) distributions can be retrieved from observations by spaceborne gas correlation radiometers and high-resolution interferometers. The Measurement of Pollution in the Troposphere (MOPITT) is a gas correlation ...

Jinxue Wang; John C. Gille; Paul L. Bailey; Liwen Pan; David Edwards; James R. Drummond

1999-01-01T23:59:59.000Z

50

Ozone  

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

and Umkehr observations (Angell et al.) The Forest Responses to Anthropogenic Stress (FORAST) (McLaughlin et al.) Ozone EnrichmentAspen FACE Experiment - Rhinelander, Wisconsin...

51

Carbon monoxide oxidation over three different states of copper: Development of a model metal oxide catalyst  

SciTech Connect

Carbon monoxide oxidation was performed over the three different oxidation states of copper -- metallic (Cu), copper (I) oxide (Cu{sub 2}O), and copper (II) oxide (CuO) as a test case for developing a model metal oxide catalyst amenable to study by the methods of modern surface science and catalysis. Copper was deposited and oxidized on oxidized supports of aluminum, silicon, molybdenum, tantalum, stainless steel, and iron as well as on graphite. The catalytic activity was found to decrease with increasing oxidation state (Cu > Cu{sub 2}O > CuO) and the activation energy increased with increasing oxidation state (Cu, 9 kcal/mol < Cu{sub 2}O, 14 kcal/mol < CuO, 17 kcal/mol). Reaction mechanisms were determined for the different oxidation states. Lastly, NO reduction by CO was studied. A Cu and CuO catalyst were exposed to an equal mixture of CO and NO at 300--350 C to observe the production of N{sub 2} and CO{sub 2}. At the end of each reaction, the catalyst was found to be Cu{sub 2}O. There is a need to study the kinetics of this reaction over the different oxidation states of copper.

Jernigan, G.G. [California Univ., Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley Lab., CA (United States). Materials and Chemical Sciences Div.

1994-10-01T23:59:59.000Z

52

Review Article A Review on Preferential Oxidation of Carbon Monoxide in Hydrogen Rich Gases  

E-Print Network (OSTI)

In this review, recent works on the preferential oxidation of carbon monoxide in hydrogen rich gases for fuel cell applications are summarized. H2 is used as a fuel for polymer-electrolyte membrane fuel cell (PEMFC). It is produced by reforming of natural gas or liquid fuels followed by water gas shift reaction. The produced gas consists of H2, CO, and CO2. In which CO content is around 1%, which is highly poisonous for the Pt anode of the PEMFC so that further removal of CO is needed. Catalytic preferential oxidation of CO (CO-PROX) is one of the most suitable methods of purification of H2 because of high CO conversion rate at low temperature range, which is preferable for PEMFC operating conditions. Catalysts used for CO-PROX are mainly noble metal based; gold based and base metal oxide catalysts among them Copper-Ceria based catalysts are the most appropriate due to its low cost, easy availability and result obtained by these catalysts are comparable with the conventional noble metal catalysts. Copyright © 2011 by BCREC UN-

A. Mishra; R. Prasad

2010-01-01T23:59:59.000Z

53

Carbon monoxide in indoor ice skating rinks: Evaluation of absorption by adult hockey players  

Science Conference Proceedings (OSTI)

We evaluated alveolar carbon monoxide (CO) levels of 122 male, adult hockey players active in recreational leagues of the Quebec City region (Canada), before and after 10 weekly 90-minute games in 10 different rinks. We also determined exposure by quantifying the average CO level in the rink during the games. Other variables documented included age, pulmonary function, aerobic capacity, and smoking status. Environmental concentrations varied from 1.6 to 131.5 parts per million (ppm). We examined the absorption/exposure relationship using a simple linear regression model. In low CO exposure levels, physical exercise lowered the alveolar CO concentration. However, we noted that for each 10 ppm of CO in the ambient air, the players had adsorbed enough CO to raise their carboxyhemoglobin (COHb) levels by 1 percent. This relationship was true both for smokers and non-smokers. We suggest that an average environmental concentration of 20 ppm of CO for the duration of a hockey game (90 minutes) should be reference limit not to be exceeded in indoor skating rinks.

Levesque, B.; Dewailly, E.; Lavoie, R.; Prud'Homme, D.; Allaire, S. (Centre hospitalier de l'Universite Laval, Quebec City (Canada))

1990-05-01T23:59:59.000Z

54

Highly ordered magnetic mesoporous silicas for effective elimination of carbon monoxide  

Science Conference Proceedings (OSTI)

Catalysts based on crystalline nanoparticles of Fe metal supported on mesoporous silica have been developed. The synthetic process involves hydrogen reduction processing for high abundant Fe metal nanoparticles within the mesopores, in which impregnated Fe salt in the inner nanopores of mesoporous silica is thermally treated under hydrogen at 500 Degree-Sign C. Detailed characterization was achieved by XRD, XPS, BET, and HR-TEM techniques. The catalytic efficiency was demonstrated as a function of the used amounts and reaction time. The results show that more than 90% of the carbon monoxide was eliminated at room temperature during a period 80 min with 0.5 g of catalyst. - Graphical abstract: Strategy for the preparation of highly abundant Fe nanoparticle embedded MS catalyst by hydrogen reduction process and HR-TEM images of cross-sectional and top view. Highlights: Black-Right-Pointing-Pointer MS based heterogeneous catalyst with Fe nanoparticles were demonstrated for CO elimination. Black-Right-Pointing-Pointer Highly Fe nanoparticle embedded MS catalyst prepared by hydrogen reduction process. Black-Right-Pointing-Pointer Systematic characterization was achieved by XRD, XPS, BET, and HR-TEM analyses. Black-Right-Pointing-Pointer More than 90% of the CO was eliminated at RT during 80 min with 0.5 g of catalyst.

Lee, Jiho [Korea Institute of Ceramic Engineering and Technology, Seoul 153-801 (Korea, Republic of); Department of Chemistry, Inha University, Incheon 402-751 (Korea, Republic of); Ho Chang, Jeong, E-mail: jhchang@kicet.re.kr [Korea Institute of Ceramic Engineering and Technology, Seoul 153-801 (Korea, Republic of)

2012-04-15T23:59:59.000Z

55

Thermodynamic investigation into steam-methane reforming and the synthesis of methane from carbon monoxide and hydrogen  

SciTech Connect

In this study the stream-methane equilibrium reaction was investigated by considering both methane synthesis from hydrogen and carbon monoxide and by considering steam-methane reforming from methane and steam. A FORTRAN computer program was written to carry out all the calculations over a wide range of temperatures, pressures, and initial compositions. The products of each process as a function of pressure, temperature, and starting ratio of reactant gases were calculated, as well as the heats involved. In both processes the minimum ratios above which no carbon precipitates were determined as a function of temperature and pressure were given.

Wu, L.H.; Lietzke, M.H.

1976-11-01T23:59:59.000Z

56

Stratospheric Sensitivity to Perturbations in Ozone and Carbon Dioxide: Radiative and Dynamical Response  

Science Conference Proceedings (OSTI)

We have attempted to assess the stratospheric effects of two different perturbations: 1) a uniform 50% reduction in ozone; and 2) a uniform doubling of carbon dioxide. The primary studies employ an annual mean insulation version of the recently ...

S. B. Fels; J. D. Mahlman; M. D. Schwarzkopf; R. W. Sinclair

1980-10-01T23:59:59.000Z

57

REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS  

DOE Green Energy (OSTI)

Several different catalytic reactions must be carried out in order to convert hydrocarbons (or alcohols) into hydrogen for use as a fuel for polyelectrolyte membrane (PEM) fuel cells. Each reaction in the fuel-processing sequence has a different set of characteristics, which influences the type of catalyst support that should be used for that particular reaction. A wide range of supports are being evaluated for the various reactions in the fuel-processing scheme, including porous and non-porous particles, ceramic and metal straight-channel monoliths, and ceramic and metal monolithic foams. These different types of support have distinctly different transport characteristics. The best choice of support for a given reaction will depend on the design constraints for the system, e.g., allowable pressure drop, and on the characteristics of the reaction for which the catalyst is being designed. Three of the most important reaction characteristics are the intrinsic reaction rate, the exothermicity/endothermicity of the reaction, and the nature of the reaction network, e.g., whether more than one reaction takes place and, in the case of multiple reactions, the configuration of the network. Isotopic transient kinetic analysis was used to study the surface intermediates. The preferential oxidation of low concentrations of carbon monoxide in the presence of high concentrations of hydrogen (PROX) is an important final step in most fuel processor designs. Data on the behavior of straight-channel monoliths and foam monolith supports will be presented to illustrate some of the factors involved in choosing a support for this reaction.

Mr. Paul Chin; Dr. Xiaolei Sun; Professor George W. Roberts; Professor James J. Spivey; Mr. Amornmart Sirijarhuphan; Dr. James G. Goodwin, Jr.; Dr. Richard W. Rice

2002-12-31T23:59:59.000Z

58

SOFT X-RAY IRRADIATION OF PURE CARBON MONOXIDE INTERSTELLAR ICE ANALOGUES  

SciTech Connect

There is an increasing evidence for the existence of large organic molecules in the interstellar and circumstellar medium. Very few among such species are readily formed in conventional gas-phase chemistry under typical conditions of interstellar clouds. Attention has therefore focused on interstellar ices as a potential source of these relatively complex species. Laboratory experiments show that irradiation of interstellar ice analogues by fast particles or ultraviolet radiation can induce significant chemical complexity. However, stars are sources of intense X-rays at almost every stage of their formation and evolution. Such radiation may thus provide chemical changes in regions where ultraviolet radiation is severely inhibited. After H{sub 2}O, CO is often the most abundant component of icy grain mantles in dense interstellar clouds and circumstellar disks. In this work we present irradiation of a pure carbon monoxide ice using a soft X-ray spectrum peaked at 0.3 keV. Analysis of irradiated samples shows formation of CO{sub 2}, C{sub 2}O, C{sub 3}O{sub 2}, C{sub 3}, C{sub 4}O, and CO{sub 3}/C{sub 5}. Comparison of X-rays and ultraviolet irradiation experiments, of the same energy dose, shows that X-rays are more efficient than ultraviolet radiation in producing new species. With the exception of CO{sub 2}, X-ray photolysis induces formation of a larger number of products with higher abundances, e.g., C{sub 3}O{sub 2} column density is about one order of magnitude higher in the X-ray experiment. To our knowledge this is the first report on X-ray photolysis of CO ices. The present results show that X-ray irradiation represents an efficient photo-chemical way to convert simple ices to more complex species.

Ciaravella, A.; Candia, R.; Collura, A. [INAF-Osservatorio Astronomico di Palermo, P.za Parlamento 1, 90134 Palermo (Italy); Jimenez-Escobar, A.; Munoz Caro, G. M. [Centro de Astrobiologia (CSIC-INTA), Carretera de Ajalvir, km 4, Torrejon de Ardoz, 28850 Madrid (Spain); Cecchi-Pestellini, C. [INAF-Osservatorio Astronomico di Cagliari, Strada n.54, Loc. Poggio dei Pini, I-09012 Capoterra (Italy); Giarrusso, S. [INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica, Via U. La Malfa 153, I-90146 Palermo (Italy); Barbera, M., E-mail: aciaravella@astropa.unipa.it [Dipartimento di Scienze Fisiche and Astronomiche, Universita di Palermo, Sezione di Astronomia, Piazza del Parlamento 1, I-90134 Palermo (Italy)

2012-02-10T23:59:59.000Z

59

One-dimensional turbulence model simulations of autoignition of hydrogen/carbon monoxide fuel mixtures in a turbulent jet  

Science Conference Proceedings (OSTI)

The autoignition of hydrogen/carbon monoxide in a turbulent jet with preheated co-flow air is studied using the one-dimensional turbulence (ODT) model. The simulations are performed at atmospheric pressure based on varying the jet Reynolds number and the oxidizer preheat temperature for two compositions corresponding to varying the ratios of H{sub 2} and CO in the fuel stream. Moreover, simulations for homogeneous autoignition are implemented for similar mixture conditions for comparison with the turbulent jet results. The results identify the key effects of differential diffusion and turbulence on the onset and eventual progress of autoignition in the turbulent jets. The differential diffusion of hydrogen fuels results in a reduction of the ignition delay relative to similar conditions of homogeneous autoignition. Turbulence may play an important role in delaying ignition at high-turbulence conditions, a process countered by the differential diffusion of hydrogen relative to carbon monoxide; however, when ignition is established, turbulence enhances the overall rates of combustion of the non-premixed flame downstream of the ignition point. (author)

Gupta, Kamlesh G.; Echekki, Tarek [Department of Mechanical and Aerospace Engineering, North Carolina State University, NC (United States)

2011-02-15T23:59:59.000Z

60

Ozone  

SciTech Connect

The author discusses the debate over whether concern about a hole in the ozone layer in Antarctic is real or science fiction. There is a growing consensus that efforts must be taken to protect the ozone layer. The issue now is not whether chlorofluorocarbons (CFCs) should be controlled and regulated but how much and how soon. The United States has urged that the production of dangerous CFCs, and any other chemicals that affect the ozone layer, be restricted immediately to current levels and that their use be reduced 95 percent over the next decade. The American position was too strong for many European nations and the Japanese. Negotiations at an international conference on the matter broke down. The breakdown is due in part to a more acute concern for environmental matters in the United States than exists in many countries. Meanwhile CFCs are linked to another environmental problem that equally threatens the world - the Greenhouse Effect. The earth is in a natural warming period, but man could be causing it to become even warmer. The Greenhouse Effect could have a catastrophic impact on mankind, although nothing has been proven yet.

1988-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" from the National Library of EnergyBeta (NLEBeta).
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61

Past and Future Effects of Ozone on Net Primary Production and Carbon Sequestration Using a Global Biogeochemical Model  

E-Print Network (OSTI)

Exposure of plants to ozone inhibits photosynthesis and therefore reduces vegetation production and carbon sequestration. Simulations with the Terrestrial Ecosystem Model (TEM) for the historical period (1860-1995) show ...

Felzer, Benjamin Seth.

62

Ozone effects on net primary production and carbon sequestration in the conterminous United States using a biogeochemistry model  

E-Print Network (OSTI)

The effects of air pollution on vegetation may provide an important control on the carbon cycle that has not yet been widely considered. Prolonged exposure to high levels of ozone, in particular, has been observed to inhibit ...

Felzer, Benjamin Seth.; Kicklighter, David W.; Melillo, Jerry M.; Wang, Chien.; Zhuang, Qianlai.; Prinn, Ronald G.

63

Carbon monoxide sensor for PEM fuel cell systems Christopher T. Holta,*  

E-Print Network (OSTI)

environment; Copper-halide 1. Introduction The use of hydrocarbon fuels for generating power for cars for both transportation and residential power systems. PEM fuel cells operate on hydro- gen. However, the infrastructure for hydrogen that will support large markets is decades away. The use of hydro- carbon fuels (e

Dutta, Prabir K.

64

Catalysts for the production of hydrocarbons from carbon monoxide and water  

DOE Patents (OSTI)

A method of converting low H.sub.2 /CO ratio syngas to carbonaceous products comprising reacting the syngas with water or steam at 200.degree. to 350.degree. C. in the presence of a metal catalyst supported on zinc oxide. Hydrocarbons are produced with a catalyst selected from cobalt, nickel or ruthenium and alcohols are produced with a catalyst selected from palladium, platinium, ruthenium or copper on the zinc oxide support. The ratio of the reactants are such that for alcohols and saturated hydrocarbons: (2n+1).gtoreq.x.gtoreq.O and for olefinic hydrocarbons: 2n.gtoreq.x.gtoreq.O where n is the number of carbon atoms in the product and x is the molar amount of water in the reaction mixture.

Sapienza, Richard S. (Shoreham, NY); Slegeir, William A. (Hampton Bays, NY); Goldberg, Robert I. (Selden, NY)

1987-01-01T23:59:59.000Z

65

Catalysts for the production of hydrocarbons from carbon monoxide and water  

DOE Patents (OSTI)

A method of converting low H/sub 2//CO ratio syngas to carbonaceous products comprising reacting the syngas with water or steam at 200 to 350/sup 0/C in the presence of a metal catalyst supported on zinc oxide. Hydrocarbons are produced with a catalyst selected from cobalt, nickel or ruthenium and alcohols are produced with a catalyst selected from palladium, platinum, ruthenium or copper on the zinc oxide support. The ratio of the reactants are such that for alcohols and saturated hydrocarbons: (2n + 1) greater than or equal to x greater than or equal to O and for olefinic hydrocarbons: 2n greater than or equal to x greater than or equal to O where n is the number of carbon atoms in the product and x is the molar amount of water in the reaction mixture.

Sapienza, R.S.; Slegeir, W.A.; Goldberg, R.I.

1985-11-06T23:59:59.000Z

66

Roles of Surface Step on Pt Nanoparticles in Electro-oxidation of Carbon Monoxide and Methanol  

DOE Green Energy (OSTI)

Design of highly active nanoscale catalysts for electro-oxidation of small organic molecules is of great importance to the development of efficient fuel cells. Increasing steps on single-crystal Pt surfaces is shown to enhance the activity of CO and methanol electro-oxidation up to several orders of magnitude. However, little is known about the surface atomic structure of nanoparticles with sizes of practical relevance, which limits the application of fundamental understanding in the reaction mechanisms established on single-crystal surfaces to the development of active, nanoscale catalysts. In this study, we reveal the surface atomic structure of Pt nanoparticles supported on multiwall carbon nanotubes, from which the amount of high-index surface facets on Pt nanoparticles is quantified. Correlating the surface steps on Pt nanoparticles with the electrochemical activity and stability clearly shows the significant role of surface steps in enhancing intrinsic activity for CO and methanol electro-oxidation. Here, we show that increasing surface steps on Pt nanoparticles of {approx}2 nm can lead to enhanced intrinsic activity up to {approx}200% (current normalized to Pt surface area) for electro-oxidation of methanol.

Lee, S.W.; Vescovo, E.; Chen, S.; Sheng, W.; Yabuuchi, N.; Kim, Y.T.; Mitani, T.; Shao-Horn, Y.

2009-10-13T23:59:59.000Z

67

HIGH-TEMPERATURE REACTIONS OF TYPE 304 STAINLESS STEEL IN LOW CONCENTRATIONS OF CARBON DIOXIDE AND CARBON MONOXIDE  

SciTech Connect

Compatibility studies of type 304 stainless steel in helium containing low concentrations of CO and CO/sub 2/ were conducted. The oxidation rates were insensitive to impurity concentrations between 0.0006--0.3 vol% in the temperature range 400--1000 deg C when P/sub co2/P/sub co/ was less than 0.66. Ratios above this value resulted initially in a slow oxidation rate, but was followed by an accelerated attack. The incubation period for the break-away varied with the P/sub co2//P/sub co/ ratio and the pressure of the two gases. The oxidation reactions proceeded through a selective depletion of chromium from the alloy which increased the carbon solubility and depletion of nickel which led to the transformation of austenite to ferrite. Parabolic reaction rates were observed for the formation of the protective oxides. Arrhenius plots of rate constants versus 1/T indicated the presence of several oxides which was confirmed by other methods. Carburization or decarburization reactions occurred coincidentally with oxidation and depended upon temperature and (P/sub CO/)/sup 2/ /P/sub CO2/ and the P/sub co2//P /sub CO/. Neither was detected below 600 deg C. Between 600--900 deg C, only carburization occurred and appeared to be mainly dependent on the temperature. Above 900 deg C, both carburization and decarburization occurred depending upon the (P/sub co/)/sup 2//P/sub co2/ and the P/sub co2//P/sub co/. The interactions of the oxidizing and carburization reactions resulted in carbon maxima at a (P/sub co/)/sup 2//P/sub co2/ ratio of 0.227. The results indicate that it may be impractical or unnecessary to reduce impurity gases to levels which do not cause surface reactions. It is concluded that undesirable oxidation and carburization reactions can be eliminated by controlling the ratios of the impurity gases. (auth)

Inouye, H.

1962-08-29T23:59:59.000Z

68

Final Technical Report "Catalytic Hydrogenation of Carbon Monoxide and Olefin Oxidation" Grant number : DE-FG02-86ER13615  

SciTech Connect

Title: Catalytic Hydrogenation of Carbon Monoxide and Olefin Oxidation Grant No. DE-FG02-86ER13615 PI: Wayland, B. B. (wayland@sas.upenn.edu) Abstract Development of new mechanistic strategies and catalyst materials for activation of CO, H2, CH4, C2H4, O2, and related substrates relevant to the conversion of carbon monoxide, alkanes, and alkenes to organic oxygenates are central objectives encompassed by this program. Design and synthesis of metal complexes that manifest reactivity patterns associated with potential pathways for the hydrogenation of carbon monoxide through metallo-formyl (M-CHO), dimetal ketone (M-C(O)-M), and dimetal dionyl (M-C(O)-C(O)-M) species is one major focus. Hydrocarbon oxidation using molecular oxygen is a central goal for methane activation and functionalization as well as regioselective oxidation of olefins. Discovery of new reactivity patterns and control of selectivity are pursued through designing new metal complexes and adjusting reaction conditions. Variation of reaction media promotes distinct reaction pathways that control both reaction rates and selectivities. Dimetalloradical diporphyrin complexes preorganize transition states for substrate reactions that involve two metal centers and manifest large rate increases over mono-metalloradical reactions of hydrogen, methane, and other small molecule substrates. Another broad goal and recurring theme of this program is to contribute to the thermodynamic database for a wide scope of organo-metal transformations in a range of reaction media. One of the most complete descriptions of equilibrium thermodynamics for organometallic reactions in water and methanol is emerging from the study of rhodium porphyrin substrate reactions in aqueous and alcoholic media. Water soluble group nine metalloporphyrins manifest remarkably versatile substrate reactivity in aqueous and alcoholic media which includes producing rhodium formyl (Rh-CHO) and hydroxy methyl (Rh-CH2OH) species. Exploratory directions for this program include expending new strategies for anti-Markovnikov addition of water, alcohols, and amines with olefins, developing catalytic reactions of CO to give formamides and formic esters, and evaluating the potential for coupling reactions of CO to produce organic building blocks.

Wayland, B.B.

2009-08-31T23:59:59.000Z

69

Integrated Removal of NOx with Carbon Monoxide as Reductant, and Capture of Mercury in a Low Temperature Selective Catalytic and Adsorptive Reactor  

SciTech Connect

Coal will likely continue to be a dominant component of power generation in the foreseeable future. This project addresses the issue of environmental compliance for two important pollutants: NO{sub x} and mercury. Integration of emission control units is in principle possible through a Low Temperature Selective Catalytic and Adsorptive Reactor (LTSCAR) in which NO{sub x} removal is achieved in a traditional SCR mode but at low temperature, and, uniquely, using carbon monoxide as a reductant. The capture of mercury is integrated into the same process unit. Such an arrangement would reduce mercury removal costs significantly, and provide improved control for the ultimate disposal of mercury. The work completed in this project demonstrates that the use of CO as a reductant in LTSCR is technically feasible using supported manganese oxide catalysts, that the simultaneous warm-gas capture of elemental and oxidized mercury is technically feasible using both nanostructured chelating adsorbents and ceria-titania-based materials, and that integrated removal of mercury and NO{sub x} is technically feasible using ceria-titania-based materials.

Neville Pinto; Panagiotis Smirniotis; Stephen Thiel

2010-08-31T23:59:59.000Z

70

Effects of ozone exposure on 'Golden' papaya fruit by photoacoustic phase-resolved method: Physiological changes associated with carbon dioxide and ethylene emission rates during ripening  

Science Conference Proceedings (OSTI)

This work addresses the effects of ozone activity on the physiology of 'Golden' papaya fruit. Depth profile analysis of double-layer biological samples was accomplished using the phase-resolved photoacoustic spectroscopy. The feasibility of the method was demonstrated by singling out the spectra of the cuticle and the pigment layers of papaya fruit. The same approach was used to monitor changes occurring on the fruit during ripening when exposed to ozone. In addition, one has performed real time studies of fluorescence parameters and the emission rates of carbon dioxide and ethylene. Finally, the amount of pigments and the changes in waxy cuticle have been monitored. Results indicate that a fruit deliberately subjected to ozone at a level of 6 ppmv underwent ripening sooner (at least 24-48 h) than a fruit stored at ambient conditions. Moreover, ozone caused a reduction in the maximum quantum yield of photosynthetic apparatus located within the skin of papaya fruit.

Correa, Savio Figueira; Brito Paiva, Luisa; Mota do Couto, Flavio; Gomes da Silva, Marcelo; Silva Sthel, Marcelo; Vargas, Helion [Laboratorio de Ciencias Fisicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego 2000, Parque California 28013-602, Campos dos Goytacazes, Rio de Janeiro (Brazil); Mota, Leonardo [Laboratorio de Ciencias Fisicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego 2000, Parque California 28013-602, Campos dos Goytacazes, Rio de Janeiro (Brazil); Fraunhofer Institut fuer Bauphysik, Nobelstrasse 12, Vaihingen 70569, Stuttgart, Baden Wuerttemberg (Germany); Goncalves de Oliveira, Jurandi [Laboratorio de Melhoramento Genetico Vegetal, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego 2000, Parque California 28013-602, Campos dos Goytacazes, Rio de Janeiro (Brazil); Miklos, Andras [Fraunhofer Institut fuer Bauphysik, Nobelstrasse 12, Vaihingen 70569, Stuttgart, Baden Wuerttemberg (Germany)

2011-06-01T23:59:59.000Z

71

Predicting tropospheric ozone and hydroxyl radical in a global, three-dimensional, chemistry, transport, and deposition model  

Science Conference Proceedings (OSTI)

Two of the most important chemically reactive tropospheric gases are ozone (O{sub 3}) and the hydroxyl radical (OH). Although ozone in the stratosphere is a necessary protector against the sun`s radiation, tropospheric ozone is actually a pollutant which damages materials and vegetation, acts as a respiratory irritant, and is a greenhouse gas. One of the two main sources of ozone in the troposphere is photochemical production. The photochemistry is initiated when hydrocarbons and carbon monoxide (CO) react with nitrogen oxides (NO{sub x} = NO + NO{sub 2}) in the presence of sunlight. Reaction with the hydroxyl radical, OH, is the main sink for many tropospheric gases. The hydroxyl radical is highly reactive and has a lifetime on the order of seconds. Its formation is initiated by the photolysis of tropospheric ozone. Tropospheric chemistry involves a complex, non-linear set of chemical reactions between atmospheric species that vary substantially in time and space. To model these and other species on a global scale requires the use of a global, three-dimensional chemistry, transport, and deposition (CTD) model. In this work, I developed two such three dimensional CTD models. The first model incorporated the chemistry necessary to model tropospheric ozone production from the reactions of nitrogen oxides with carbon monoxide (CO) and methane (CH{sub 4}). The second also included longer-lived alkane species and the biogenic hydrocarbon isoprene, which is emitted by growing plants and trees. The models` ability to predict a number of key variables (including the concentration of O{sub 3}, OH, and other species) were evaluated. Then, several scenarios were simulated to understand the change in the chemistry of the troposphere since preindustrial times and the role of anthropogenic NO{sub x} on present day conditions.

Atherton, C.S.

1995-01-05T23:59:59.000Z

72

Large Scale Atmospheric Chemistry Simulations for 2001: An Analysis of Ozone and Other Species in Central Arizona  

DOE Green Energy (OSTI)

A key atmospheric gas is ozone. Ozone in the stratosphere is beneficial to the biosphere because it absorbs a significant fraction of the sun's shorter wavelength ultraviolet radiation. Ozone in the troposphere is a pollutant (respiratory irritant in humans and acts to damage crops, vegetation, and many materials). It affects the Earths energy balance by absorbing both incoming solar radiation and outgoing long wave radiation. An important part of the oxidizing capacity of the atmosphere involves ozone, through a photolysis pathway that leads to the hydroxyl radical (OH). Since reaction with OH is a major sink of many atmospheric species, its concentration controls the distributions of many radiatively important species. Ozone in the troposphere arises from both in-situ photochemical production and transport from the stratosphere. Within the troposphere, ozone is formed in-situ when carbon monoxide (CO), methane (CH4), and non-methane hydrocarbons (NMHCs) react in the presence of nitrogen oxides (NO, = NO + NO2) and sunlight. The photochemistry of the stratosphere differs significantly from that in the troposphere. Within the stratosphere, ozone formation is initiated by the photolysis of 02. Stratospheric ozone may be destroyed via catalytic reactions with NO, H (hydrogen), OH, CI (chlorine) and Br (bromine), or photolysis. In the past, attempts to simulate the observed distributions of ozone (and other important gases) have focused on either the stratosphere or the troposphere. Stratospheric models either employed simplified parameterizations to represent tropospheric chemical and physical processes, or assumed the troposphere behaved as a boundary condition. Likewise, tropospheric models used simplified stratospheric chemistry and transport.

Atherton, C; Bergmann, D; Cameron-Smith, P; Connell, P; Molenkamp, C; Rotman, D; Tannahil, J

2002-10-08T23:59:59.000Z

73

Ozone decomposing filter  

DOE Patents (OSTI)

In an improved ozone decomposing air filter carbon fibers are held together with a carbonized binder in a perforated structure. The structure is made by combining rayon fibers with gelatin, forming the mixture in a mold, freeze-drying, and vacuum baking.

Simandl, Ronald F. (Farragut, TN); Brown, John D. (Harriman, TN); Whinnery, Jr., LeRoy L. (Dublin, CA)

1999-01-01T23:59:59.000Z

74

Ozone depletion and health  

SciTech Connect

This book presents the state of knowledge of the ozone layer and the greenhouse effect. Deleterious effects of ultra-violet radiation on humans, animals, and plants are discussed. Alternatives to chloro-fluoro-carbons and political responses to the scientific discoveries are also addressed.

Russell-Jones, R.; Wigley, T.

1989-01-01T23:59:59.000Z

75

Application of an all-solid-state diode-laser-based sensor for carbon monoxide detection by optical absorption in the 4.4 ? 4.8 µm spectral region  

E-Print Network (OSTI)

An all-solid-state continuous-wave (cw) laser system for mid-infrared absorption measurements of the carbon monoxide (CO) molecule has been developed and demonstrated. The single-mode, tunable output of an external-cavity diode laser (ECDL) is difference-frequency mixed (DFM) with the output of a 550-mW diode-pumped cw Nd:YAG laser in a periodically-poled lithium niobate (PPLN) crystal to produce tunable cw radiation in the mid-infrared. The wavelength of the 860-nm ECDL can be coarse tuned between 860.78 to 872.82 nm allowing the sensor to be operated in the 4.4 ? 4.8 µm region. Results from single-pass mid-IR direct absorption experiments for CO concentration measurements are discussed. CO measurements were performed in CO/CO2/N2 mixtures in a room temperature gas cell that allowed the evaluation of the sensor operation and data reduction procedures. Field testing was performed at two locations: in the exhaust of a well-stirred reactor (WSR) at Wright-Patterson Air Force Base and the exhaust of a gas turbine at Honeywell Engines and Systems. Field tests demonstrated the feasibility of the sensor for operation in harsh combustion environments but much improvement in the sensor design and operation was required. Experiments in near-adiabatic hydrogen/air CO2-doped flames were performed featuring two-line thermometry in the 4.8 µm spectral region. The sensor concentration measurement uncertainty was estimated at 2% for gas cell testing. CO concentration measurements agreed within 15% of conventional extractive sampling at WSR, and for the flame experiments the repeatability of the peak absorption gives a system uncertainty of 10%. The noise equivalent CO detection limit for these experiments was estimated at 2 ppm per meter, for combustion gas at 1000 K assuming a SNR ratio of 1.

Rodolfo, Barron Jimenez

2004-12-01T23:59:59.000Z

76

CCQM Activities in the Gas Analysis Working Group  

Science Conference Proceedings (OSTI)

... past two years included measurement of ammonia, hexane, propane, mercaptans, ozone, oxygen, carbon monoxide, carbon dioxide, nitric oxide ...

2012-11-16T23:59:59.000Z

77

Predicting Smoke and Carbon Monoxide Detector Response ...  

Science Conference Proceedings (OSTI)

... room with floor dimensions of 3.15 m by 3.02 m. A sand burner was ... The detector was isolated from the CO environment by placing a tight fitting can ...

2003-08-28T23:59:59.000Z

78

Carbon Monoxide Sensor - Energy Innovation Portal  

Electricity Transmission; Energy Analysis; ... the sensor ensures reproducibility and reduces the need for calibration of every sensor coming off the ...

79

Prototype Generators Emit Much Less Carbon Monoxide ...  

Science Conference Proceedings (OSTI)

... Portable electric generators retrofitted with off-the-shelf hardware by ... Technology (NIST) for the US Consumer Product Safety Commission (CPSC). ...

2013-04-17T23:59:59.000Z

80

Standard Reference Materials Carbon Monoxide Absorption ...  

Science Conference Proceedings (OSTI)

... Use With a Broadband Source: A broadband source in the 1560 nm to 1595 nm region such as a light emitting diode, white light, or amplified ...

2011-08-04T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Carbon Dioxide and Hydrogen Sulfide Emission Factors Applicable to Wastewater Wet Wells.  

E-Print Network (OSTI)

??Transport of wastewater in sewer networks causes potential problems associated with gases which include ammonia, carbon dioxide, carbon monoxide, hydrogen sulfide and methane, in regard… (more)

Mudragaddam, Madhuri

2010-01-01T23:59:59.000Z

82

Nuclear conflict and ozone depletion Quick summary  

E-Print Network (OSTI)

Nuclear conflict and ozone depletion Quick summary o Regional nuclear war could cause global which traps pollutants o Nuclear weapons cause explosions, which then causes things around the vicinity to start burning, which in turn releases black carbon; it is not the nuclear material or fallout causing

Toohey, Darin W.

83

Scale-up and Demonstration of Fly Ash Ozonation Technology  

Science Conference Proceedings (OSTI)

This project is the first large pilot scale test of a new process to passivate the carbon in ash so that it can be used in concrete without physically removing the carbon from the ash. The tests were conducted at PPL's Montour SES, sponsored by DOE and supported by EPRI. Near full-scale industrial equipment was used to expose fly ash, carbon mixtures to ozone to see if ozone would passivate the surface of carbon so that it would not react with air entraining agents that are used by concrete manufacturers...

2005-11-29T23:59:59.000Z

84

Radiation and Ozone  

Science Conference Proceedings (OSTI)

Radiation is the driving force for the general circulation of the atmosphere and controls the Earth's climate. Ozone is responsible for the warm stratosphere and protects life on Earth from harmful solar ultraviolet radiation. In July 1959, the ...

G. Ohring; R. D. Bojkov; H-J. Bolle; R. D. Hudson; H. Volkert

2009-11-01T23:59:59.000Z

85

Ozone in Michigan's Environment 1876–1880  

Science Conference Proceedings (OSTI)

Atmospheric ozone was monitored in Michigan during the late 1880's using Schoenbein's test paper. A conversion chart was constructed to relate the Schoenbein ozone scale at various relative humidifies to ozone levels indicated by a Dasibi ozone ...

Dale E. Linvill; W. J. Hooker; Brian Olson

1980-11-01T23:59:59.000Z

86

Ozone Modeling Using Neural Networks  

Science Conference Proceedings (OSTI)

Ozone models for the city of Tulsa were developed using neural network modeling techniques. The neural models were developed using meteorological data from the Oklahoma Mesonet and ozone, nitric oxide, and nitrogen dioxide (NO2) data from ...

Ramesh Narasimhan; Joleen Keller; Ganesh Subramaniam; Eric Raasch; Brandon Croley; Kathleen Duncan; William T. Potter

2000-03-01T23:59:59.000Z

87

Premixed Carbon Monoxide–Nitrous Oxide–Hydrogen Flames ...  

Science Conference Proceedings (OSTI)

... the combustion emission charac- teristics of stationary and mobile power plants. ... present data are in good agreement with the low-hydro- gen data ...

2012-12-06T23:59:59.000Z

88

Stimulation of aortic and carotid chemoreceptors during carbon monoxide inhalation  

SciTech Connect

The decrease in local tissue PO/sub 2/ that occurs with carboxyhemoglobinemia was thought to be responsible for the 2 to 5 times greater chemoreceptor impulse frequency in cats with 18 to 40% COHb.

Mills, E.; Edwards, M.W. Jr.

1968-01-01T23:59:59.000Z

89

Carbon Monoxide Formation in Fires by High-Temperature ...  

Science Conference Proceedings (OSTI)

... experiments. Page 7. FORMATION BY ANAEROBIC WOOD PYROLYSIS 1461 . ... 1990. Milne, T,, in Biomass Gasification. ...

1996-08-14T23:59:59.000Z

90

BSA 01-07: Carbon Monoxide Tolerant Fuel Cell Electrocatalyst  

This fuel cell anode includes an electrocatalyst that has a conductive support material, ... Brookhaven National Laboratory conducts research in the ...

91

Observations of Transport Processes for Ozone and Ozone Precursors during the 1991 Lake Michigan Ozone Study  

Science Conference Proceedings (OSTI)

The Lake Michigan Air Quality Region (LMAQR) continues to experience ozone concentrations in urban and rural areas above the federal standard of 125 ppb. During the summer of 1991, the LMAQR states sponsored the Lake Michigan Ozone Study, which ...

Timothy S. Dye; Paul T. Roberts; Marcelo E. Korc

1995-08-01T23:59:59.000Z

92

Population based exposure assessment methodology for carbon monoxide: Development of a Carbon Monoxide Passive Sampler and Occupational Dosimeter  

E-Print Network (OSTI)

hydrocarbons (toluene), alkanes (butane, methane, heptane),tube/GC (NIOSH 1 5 0 0 ) a Butane 300ppm Charcoal tube/GC (O toluene toluene + C O butane butane + C O methane methane

Apte, Michael G.

2010-01-01T23:59:59.000Z

93

ELECTRON IRRADIATION OF CARBON DISULFIDE-OXYGEN ICES: TOWARD THE FORMATION OF SULFUR-BEARING MOLECULES IN INTERSTELLAR ICES  

Science Conference Proceedings (OSTI)

The formation of sulfur-bearing molecules in interstellar ices was investigated during the irradiation of carbon disulfide (CS{sub 2})-oxygen (O{sub 2}) ices with energetic electrons at 12 K. The irradiation-induced chemical processing of these ices was monitored online and in situ via Fourier transform infrared spectroscopy to probe the newly formed products quantitatively. The sulfur-bearing molecules produced during the irradiation were sulfur dioxide (SO{sub 2}), sulfur trioxide (SO{sub 3}), and carbonyl sulfide (OCS). Formations of carbon dioxide (CO{sub 2}), carbon monoxide (CO), and ozone (O{sub 3}) were observed as well. To fit the temporal evolution of the newly formed products and to elucidate the underlying reaction pathways, kinetic reaction schemes were developed and numerical sets of rate constants were derived. Our studies suggest that carbon disulfide (CS{sub 2}) can be easily transformed to carbonyl sulfide (OCS) via reactions with suprathermal atomic oxygen (O), which can be released from oxygen-containing precursors such as water (H{sub 2}O), carbon dioxide (CO{sub 2}), and/or methanol (CH{sub 3}OH) upon interaction with ionizing radiation. This investigation corroborates that carbonyl sulfide (OCS) and sulfur dioxide (SO{sub 2}) are the dominant sulfur-bearing molecules in interstellar ices.

Maity, Surajit; Kaiser, Ralf I. [Department of Chemistry, University of Hawai'i at Manoa, Honolulu, HI 96822 (United States)

2013-08-20T23:59:59.000Z

94

Ambient Air Quality Standards (New Jersey)  

Energy.gov (U.S. Department of Energy (DOE))

This article lists specific standards for ambient air quality standards for particulate matter, sulfur dioxide, carbon monoxide, ozone, lead and nitrogen dioxide.

95

Control of carbon balance in a silicon smelting furnace  

DOE Patents (OSTI)

The present invention is a process for the carbothermic reduction of silicon dioxide to form elemental silicon. Carbon balance of the process is assessed by measuring the amount of carbon monoxide evolved in offgas exiting the furnace. A ratio of the amount of carbon monoxide evolved and the amount of silicon dioxide added to the furnace is determined. Based on this ratio, the carbon balance of the furnace can be determined and carbon feed can be adjusted to maintain the furnace in carbon balance.

Dosaj, V.D.; Haines, C.M.; May, J.B.; Oleson, J.D.

1992-12-29T23:59:59.000Z

96

Analysis, anaerobic treatment and ozonation of wool scouring wastewater  

SciTech Connect

Wool scouring effluents (WSE) were analyzed by high-resolution gas chromatography-mass spectrometry (HRGC-MS), and then exposed to anaerobic biological treatment using laboratory scale fixed-bed filters. This resulted in a nearly 50% reduction in chemical oxygen demand (COD). Ozonation of the effluent from the biological step led to an even further decrease in total organic carbon (TOC). The fatty acid content of the WSE was affected by both biological treatment and ozonation. Finally, steroids in the WSE underwent reduction reactions when exposed to the anaerobic biological treatment.

Monteverdi, A.; Rindone, B.; Sorlini, C. (Univ. di Milano (Italy)); Andreoni, V. (Univ. di Torino (Italy)); Rozzi, A. (Inst. di Ingegneria Sanitaria del Politechnico di Milano (Italy))

1992-01-01T23:59:59.000Z

97

Annual and Seasonal Global Variation in Total Ozone and Layer-Mean Ozone,  

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

Atmospheric Trace Gases » Ozone » Total Ozone and Layer-Mean Ozone Atmospheric Trace Gases » Ozone » Total Ozone and Layer-Mean Ozone Annual and Seasonal Global Variation in Total Ozone and Layer-Mean Ozone, 1958-1987 (1991) DOI: 10.3334/CDIAC/atg.ndp023 data Data Investigators J. K. Angell, J. Korshover, and W. G. Planet Description For 1958 through 1987, this data base presents total ozone variations and layer mean ozone variations expressed as percent deviations from the 1958 to 1977 mean. The total ozone variations were derived from mean monthly ozone values published in Ozone Data for the World by the Atmospheric Environment Service in cooperation with the World Meteorological Organization. The layer mean ozone variations are derived from ozonesonde and Umkehr observations. The data records include year, seasonal and annual

98

Method for producing carbon nanotubes  

DOE Patents (OSTI)

Method for producing carbon nanotubes. Carbon nanotubes were prepared using a low power, atmospheric pressure, microwave-generated plasma torch system. After generating carbon monoxide microwave plasma, a flow of carbon monoxide was directed first through a bed of metal particles/glass beads and then along the outer surface of a ceramic tube located in the plasma. As a flow of argon was introduced into the plasma through the ceramic tube, ropes of entangled carbon nanotubes, attached to the surface of the tube, were produced. Of these, longer ropes formed on the surface portion of the tube located in the center of the plasma. Transmission electron micrographs of individual nanotubes revealed that many were single-walled.

Phillips, Jonathan (Santa Fe, NM); Perry, William L. (Jemez Springs, NM); Chen, Chun-Ku (Albuquerque, NM)

2006-02-14T23:59:59.000Z

99

Hole in the ozone layer?  

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

Hole in the ozone layer? Hole in the ozone layer? Name: Kelley Location: N/A Country: N/A Date: N/A Question: Is there really a hole in the ozone layer? Replies: That depends on what one means by a "hole". There is a thinning of the layer that is particularly severe during certain seasons at the poles. But the ozone layer is thinning most everywhere. The thinning around the south pole of earth is particularly stunning, and has been referred to as a hole even though some ozone still exists there, it is much less concentrated. As you may know, this ozone destruction is probably due to human release of pollutants such as clorofluorocarbons (CFCs) an due to natural sources such as chemicals from volcanic eruptions. CFCs are used is cooling systems such as refrigerators and air conditioning. There is an international agreement to phase out the use of these destructive chemicals but they won't be banned entirely for years for fears of losing money. Meanwhile the ozone layer thins and we are exposed to increasingly higher doses of cancer causing radiation

100

Scale-Up and Demonstration of Fly Ash Ozonation Technology  

Science Conference Proceedings (OSTI)

The disposal of fly ash from the combustion of coal has become increasingly important. When the fly ash does not meet the required specification for the product or market intended, it is necessary to beneficiate it to achieve the desired quality. This project, conducted at PPL's Montour SES, is the first near full-scale ({approx}10 ton/day), demonstration of ash ozonation technology. Bituminous and sub bituminous ashes, including two ash samples that contained activated carbon, were treated during the project. Results from the tests were very promising. The ashes were successfully treated with ozone, yielding concrete-suitable ash quality. Preliminary process cost estimates indicate that capital and operating costs to treat unburned carbon are competitive with other commercial ash beneficiation technologies at a fraction of the cost of lost sales and/or ash disposal costs. This is the final technical report under DOE Cooperative Agreement No.: DE-FC26-03NT41730.

Rui Afonso; R. Hurt; I. Kulaots

2006-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

INDOOR AIR QUALITY AND ENERGY EFFICIENT VENTILATION RATES AT A NEW YORK CITY ELEMENTARY SCHOOL  

E-Print Network (OSTI)

inorganic pollutants: carbon dioxide, carbon monoxide,odor perception, carbon dioxide, carbon monoxide, sulfurkeywords; pollution, carbon dioxide, carbon monoxide, energy

Young, Rodger A.

2013-01-01T23:59:59.000Z

102

Ultraviolet photoelectron spectroscopy of molybdenum and molybdenum monoxide anions  

E-Print Network (OSTI)

of Utah, Salt Lake City, Utah 84112 Received 30 May 1995; accepted 23 October 1995 The 351 nm photoelectron spectra of Mo and MoO have been measured. The electron affinity of atomic molybdenum is 0.748 2 e- denum monoxide illustrates these difficulties especially well, since the molybdenum atomic ground state

Lineberger, W. Carl

103

Plasmachemical Synthesis of Carbon Suboxide  

E-Print Network (OSTI)

A nonthermal carbon monoxide plasma is known to produce a solid deposition which is thought to be a polymer of carbon suboxide (C3O2); however there are very few investigations of this deposition in the literature. This thesis contains an analysis of the theoretical thermodynamics and kinetics of carbon suboxide formation as well as experimental results. The theoretical analysis suggests that carbon suboxide may be an equilibrium product even at ambient conditions but favors lower temperatures; furthermore if solid carbon is considered to be kinetically limited, and therefore not a product, then carbon suboxide is more likely to be a product under these pseudo-equilibrium conditions. Experimentally, solid films were produced in a dielectric barrier discharge (DBD) containing pure carbon monoxide. Optical emission spectroscopy was used to analyze the plasma and models of the emission spectra were created to determine the plasma temperatures. Deposition rates were determined to be on the order of 0.2 mg/min at a power of about 10W; it is expected however that these conditions are not optimized. The overall kinetics of carbon suboxide was analyzed and optimal conditions for operation can be estimated. Characterization of the solid depositions were carried out using Solid State Nuclear Magnetic Resonance (NMR), Fourier Transform Infrared Spectroscopy (FTIR), Electrospray Ionization Mass Spectroscopy (ESI-MS), and Matrix-assisted Laser Desorption Ionization Mass Spectroscopy (MALDI-MS). The characteristics of the film are very comparable to hydrolyzed carbon suboxide polymer suggesting that carbon suboxide polymer were in fact created in the carbon monoxide plasma at atmospheric conditions.

Geiger, Robert

2013-05-01T23:59:59.000Z

104

Influence of Long-Period Variations of Total Ozone Content on Climate  

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

Influence of Long-Period Variations of Total Ozone Content on Climate Influence of Long-Period Variations of Total Ozone Content on Climate Change in Twentieth Century Zuev, V Institute of Atmospheric Optics Zueva, N. Institute of Atmospheric Optics Bondarenko, S Institute of Atmospheric Optics Category: Atmospheric State and Surface It is shown that during long-term total ozone decrease everywhere at middle and high latitudes there takes place the destruction of balance in global carbon cycle first of all due to reduction of photosynthetical СО2 sink in consequence of UV-B radiation stress of vegetable biota. As a result, СО2 concentrations in the atmosphere considerably increase, enhancing the "greenhouse effect." Based on reconstruction of behavior of stratospheric ozone between 1600 and 2000 from dendrochronologic data, it is shown that

105

Thermochemical cyclic system for splitting water and/or carbon dioxide by means of cerium compounds and reactions useful therein  

DOE Patents (OSTI)

A thermochemical cyclic process for producing hydrogen from water comprises reacting ceric oxide with monobasic or dibasic alkali metal phosphate to yield a solid reaction product, oxygen and water. The solid reaction product, alkali metal carbonate or bicarbonate, and water, are reacted to yield hydrogen, ceric oxide, carbon dioxide and trialkali metal phosphate. Ceric oxide is recycled. Trialkali metal phosphate, carbon dioxide and water are reacted to yield monobasic or dibasic alkali metal phosphate and alkali metal bicarbonate, which are recycled. The cylic process can be modified for producing carbon monoxide from carbon dioxide by reacting the alkali metal cerous phosphate and alkali metal carbonate or bicarbonate in the absence of water to produce carbon monoxide, ceric oxide, carbon dioxide and trialkali metal phosphate. Carbon monoxide can be converted to hydrogen by the water gas shift reaction.

Bamberger, Carlos E. (Oak Ridge, TN); Robinson, Paul R. (Knoxville, TN)

1980-01-01T23:59:59.000Z

106

Generation and Solid Oxide Fuel Cell Carbon Sequestration in Northwest Indiana  

DOE Green Energy (OSTI)

The objective of the project is to develop the technology capable of capturing all carbon monoxide and carbon dioxide from natural gas fueled Solid Oxide Fuel Cell (SOFC) system. In addition, the technology to electrochemically oxidize any remaining carbon monoxide to carbon dioxide will be developed. Success of this R&D program would allow for the generation of electrical power and thermal power from a fossil fuel driven SOFC system without the carbon emissions resulting from any other fossil fueled power generationg system.

Kevin Peavey; Norm Bessette

2007-09-30T23:59:59.000Z

107

Electrocatalytic reduction of carbon dioxide to carbon monoxide by rhenium and manganese polypyridyl catalysts  

E-Print Network (OSTI)

fuels but also shows that total energy usage has increasedfuels, but also shows that total energy usage has increased

Smieja, Jonathan Mark

2012-01-01T23:59:59.000Z

108

Electrocatalytic reduction of carbon dioxide to carbon monoxide by rhenium and manganese polypyridyl catalysts  

E-Print Network (OSTI)

are on the decline of the peak oil production curve, and thedue to the impending peak in oil production and the threatoil production curves for those countries that have passed peak

Smieja, Jonathan Mark

2012-01-01T23:59:59.000Z

109

Hydroxyl, water, ammonia, carbon monoxide and neutral carbon towards the Sgr A complex  

E-Print Network (OSTI)

We observed OH, H$_2$O, HN$_3$, C$^{18}$O, and C$_I$ towards the +50 km/s cloud (M-0.02-0.07), the CND and the +20 km/s (M-0.13-0.08) cloud in the Sgr A complex with the VLA, Odin and SEST. Strong OH absorption, H$_2$O emission and absorption lines were seen at all three positions. Strong C$^{18}$O emissions were seen towards the +50 and +20 km/s clouds. The CND is rich in H$_2$O and OH, and these abundances are considerably higher than in the surrounding clouds, indicating that shocks, star formation and clump collisions prevail in those objects. A comparison with the literature reveals that it is likely that PDR chemistry including grain surface reactions, and perhaps also the influences of shocks has led to the observed abundances of the observed molecular species studied here. In the redward high-velocity line wings of both the +50 and +20 km/s clouds and the CND, the very high H$_2$O abundances are suggested to be caused by the combined action of shock desorption from icy grain mantles and high-temperatu...

Karlsson, Roland; Hjalmarson, Åke; Winnberg, Anders; Fathi, Kambiz; Frisk, Urban; Olberg, Michael

2013-01-01T23:59:59.000Z

110

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.

1992-12-31T23:59:59.000Z

111

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, Jerome W. (Lockport, IL); Klingler, Robert J. (Westmount, IL)

1993-01-01T23:59:59.000Z

112

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

113

A pilot study of energy efficient air cleaning for ozone  

SciTech Connect

A laboratory pilot study has been undertaken with the material that showed the most promise (high capacity and low pressure drop) based on the literature review and associated calculations. The best-performing air cleaner was a commercially available pleated filter that contained a thin layer of small activated carbon particles between two sheets of non-woven fibrous webbing. We will refer to this unit as the ''ozone filter'' although it is marketed for removal of volatile organic compounds (VOCs) from automobile passenger compartments. This pilot study strongly suggests that ozone air cleaning can be practical in commercial air handling systems; however, further tests are needed to assess air cleaner performance under a wider range of conditions.

Gundel, Lara A.; Sullivan, Douglas P.; Katsapov, Gregory Y.; Fisk, William J.

2002-11-01T23:59:59.000Z

114

Ozone Conference II: Abstract Proceedings  

Science Conference Proceedings (OSTI)

Ozone Conference II: Pre- and Post-Harvest Applications Two Years After Gras, was held September 27-28, 1999 in Tulare, California. This conference, sponsored by EPRI's Agricultural Technology Alliance and Southern California Edison's AgTAC facility, was coordinated and organized by the on-site ATA-AgTAC Regional Center. Approximately 175 people attended the day-and-a-half conference at AgTAC. During the Conference twenty-two presentations were given on ozone food processing and agricultural applications...

1999-11-24T23:59:59.000Z

115

A Comparison of Total Column Ozone Values Derived from the Global Ozone Monitoring Experiment (GOME), the Tiros Operational Vertical Sounder (TOVS), and the Total Ozone Mapping Spectrometer (TOMS)  

Science Conference Proceedings (OSTI)

A comparison of total column ozone data retrieved from the Global Ozone Monitoring Experiment (GOME), the Tiros Operational Vertical Sounder (TOVS), and the Total Ozone Mapping Spectrometer (TOMS) for the years 1996, 1997, 1998, and 1999 is ...

Gary K. Corlett; Paul S. Monks

2001-05-01T23:59:59.000Z

116

Ozone Reductions Using Residential Building Envelopes  

SciTech Connect

Ozone is an air pollutant with that can have significant health effects and a significant source of ozone in some regions of California is outdoor air. Because people spend the vast majority of their time indoors, reduction in indoor levels of ozone could lead to improved health for many California residents. Ozone is removed from indoor air by surface reactions and can also be filtered by building envelopes. The magnitude of the envelope impact depends on the specific building materials that the air flows over and the geometry of the air flow paths through the envelope that can be changes by mechanical ventilation operation. The 2008 Residential Building Standards in California include minimum requirements for mechanical ventilation by referencing ASHRAE Standard 62.2. This study examines the changes in indoor ozone depending on the mechanical ventilation system selected to meet these requirements. This study used detailed simulations of ventilation in a house to examine the impacts of different ventilation systems on indoor ozone concentrations. The simulation results showed that staying indoors reduces exposure to ozone by 80percent to 90percent, that exhaust ventilation systems lead to lower indoor ozone concentrations, that opening of windows should be avoided at times of high outdoor ozone, and that changing the time at which mechanical ventilation occurs has the ability to halve exposure to ozone. Future work should focus on the products of ozone reactions in the building envelope and the fate of these products with respect to indoor exposures.

Walker, Iain S.; Sherman, Max; Nazaroff, William W.

2009-02-01T23:59:59.000Z

117

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

118

Antarctic Ozone Transport and Depletion in Austral Spring 2002  

Science Conference Proceedings (OSTI)

The ozone budget in the Antarctic region during the stratospheric warming in 2002 is studied, using ozone analyses from the Royal Netherlands Meteorological Institute (KNMI) ozone-transport and assimilation model called TM3DAM. The results show a ...

Peter Siegmund; Henk Eskes; Peter van Velthoven

2005-03-01T23:59:59.000Z

119

Method of removing nitrogen monoxide from a nitrogen monoxide-containing gas using a water-soluble iron ion-dithiocarbamate, xanthate or thioxanthate  

DOE Patents (OSTI)

The present invention relates to a method of removing of nitrogen monoxide from a nitrogen monoxide-containing gas which method comprises contacting a nitrogen oxide-containing gas with an aqueous solution of water soluble organic compound-iron ion chelate complex. The NO absorption efficiency of ferrous urea-dithiocarbamate and ferrous diethanolamine-xanthate as a function of time, oxygen content and solution ph is presented. 3 figs., 1 tab.

Liu, D. Kwok-Keung; Chang, Shih-Ger

1987-08-25T23:59:59.000Z

120

Y-12 Plant Stratospheric Ozone Protection plan  

SciTech Connect

The Y-12 Plant staff is required by Lockheed Martin Energy Systems (Energy Systems) (formerly Martin Marietta Energy Systems) standard ESS-EP-129 to develop and implement a Stratospheric Ozone Protection Program which will minimize emissions of ozone-depleting substances to the environment and maximize the use of ozone-safe alternatives in order to comply with Title VI of the 1990 Clean Air Act (CAA) Amendments and the implementing regulations promulgated by the Environmental Protection Agency (EPA). This plan describes the requirements, initiatives, and accomplishments of the Y-12 Plant Stratospheric Ozone Protection Program.

NONE

1995-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Laboratory measurement of secondary pollutant yields from ozone...  

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

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters. Title Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC...

122

Iron catalysis in oxidation by ozone - Energy Innovation Portal  

Bookmark Iron catalysis in oxidation by ozone - Energy Innovation Portal on Google; Bookmark Iron catalysis in oxidation by ozone - Energy Innovation ...

123

Calibration of the Ogawa ozone passive sampler for aircraft cabins...  

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

Calibration of the Ogawa ozone passive sampler for aircraft cabins. Title Calibration of the Ogawa ozone passive sampler for aircraft cabins. Publication Type Journal Article Year...

124

A tight-binding potential for atomistic simulations of carbon interacting with transition metals: Application to the Ni-C system  

E-Print Network (OSTI)

, such as steam reforming of methane and methanation of carbon monoxide.2 Another more recent example catalytic reactions in relation with the air pollution problem. Sur- face reactions of methane on nickel

Paris-Sud XI, Université de

125

Modeling the Effect of Chlorine Emissions on Ozone Levels over the Eastern United States  

E-Print Network (OSTI)

This paper presents model estimates of the effect of chlorine emissions on atmospheric ozone concentrations in the eastern United States. The model included anthropogenic molecular chlorine emissions, anthropogenic hypochlorous acid emissions from cooling towers and swimming pools, and chlorine released from sea-salt aerosols. The release of chlorine emissions from sea-salt aerosols was modeled using heterogeneous reactions involving chloride ions in aerosols and three gas-phase species. The gas-phase chlorine chemistry was combined with the Carbon Bond Mechanism and incorporated into the Community Multiscale Air Quality modeling system. Air quality model simulations were performed for July 2001 and the results obtained with and without chlorine emissions were analyzed. When chlorine emissions were included in the model, ozone concentrations increased in the Houston, Texas, and New York–New Jersey areas. The daily maximum 1-h ozone concentrations increased by up to 12 parts per billion by volume (ppbv) in the Houston area and 6 ppbv in the New York–New Jersey area. The daily maximum 8-h ozone concentrations increased by up to 8 ppbv in the Houston area and 4 ppbv in the New York–New Jersey area. The monthly average daily maximum 1-h ozone concentration increased by up to 3 ppbv in the Houston area, but the increases in the monthly average daily maximum 1-h ozone concentration in the New York–New Jersey area were small. Chlorine emissions and chemistry enhanced the volatile organic compound oxidation rates and, thereby, increased the ozone production rate. 1.

Golam Sarwar; Prakash; V. Bhave

2006-01-01T23:59:59.000Z

126

Variables effecting ozone treatment of physical-chemical effluent  

SciTech Connect

The treatment of raw sewage from an on-site apartment area was investigated in a series of laboratory experiments in which changes in turbidity, pH, total organic carbon, chemical oxygen demand, and, in some cases, biochemical oxygen demands were determined. Raw sewage, but mainly the effluent following physical-chemical treatment, was examined for improvement in discharge quality by ozone treatment in combination with oxygen sparging, ionizing gamma radiation from /sup 60/Co heating, acidifying, and several other variables. The average composition of the raw sewage was a TOC of 125 ppM (range from 65 to 240), COD of 190 ppM (range from 85 to 475), turbidity of 145 J. U. (range from 60 to 350), and pH of 7.3 (range from 6.5 to 8.4). Physical chemical treatment usually consisted of the addition of CaO (to pH 11) and FeCl/sub 3/ as a coagulant aid in an inclined tube followed by course filtration; typical treatment time was 15 minutes giving an average reduction in TOC and COD of 40 to 60%. Subsequent treatment was usually performed with 200 cm/sup 3/ samples of the effluent in fine and course fritted bubblers. The combination of radiation plus ozone gave the largest reduction of TOC and COD. In one experiment, 15 minutes of treatment followed by 30 minutes of irradiation and ozonation reduced the raw sewage TOC from 95 to 14 ppM carbon and COD from 150 to 6 ppM oxygen. (auth)

Dietz, R.N.; Pruzansky, J.; Steinberg, M.

1973-11-01T23:59:59.000Z

127

Optimal statistical model for forecasting ozone  

Science Conference Proceedings (OSTI)

The objective of this paper is to apply time series analysis and multiple regression method to ozone data in order to obtain the optimal statistical model for forecasting next day ozone level. The best estimated model is then used to produce one-step ... Keywords: ARMA (p, q), Durbin-Watson Statistic, MAPE, R-square, multiple regression

M. Abdollahian; R. Foroughi; N. Debnath

2006-04-01T23:59:59.000Z

128

ADVANCED OXIDATION: OXALATE DECOMPOSITION TESTING WITH OZONE  

SciTech Connect

At the Savannah River Site (SRS), oxalic acid is currently considered the preferred agent for chemically cleaning the large underground Liquid Radioactive Waste Tanks. It is applied only in the final stages of emptying a tank when generally less than 5,000 kg of waste solids remain, and slurrying based removal methods are no-longer effective. The use of oxalic acid is preferred because of its combined dissolution and chelating properties, as well as the fact that corrosion to the carbon steel tank walls can be controlled. Although oxalic acid is the preferred agent, there are significant potential downstream impacts. Impacts include: (1) Degraded evaporator operation; (2) Resultant oxalate precipitates taking away critically needed operating volume; and (3) Eventual creation of significant volumes of additional feed to salt processing. As an alternative to dealing with the downstream impacts, oxalate decomposition using variations of ozone based Advanced Oxidation Process (AOP) were investigated. In general AOPs use ozone or peroxide and a catalyst to create hydroxyl radicals. Hydroxyl radicals have among the highest oxidation potentials, and are commonly used to decompose organics. Although oxalate is considered among the most difficult organic to decompose, the ability of hydroxyl radicals to decompose oxalate is considered to be well demonstrated. In addition, as AOPs are considered to be 'green' their use enables any net chemical additions to the waste to be minimized. In order to test the ability to decompose the oxalate and determine the decomposition rates, a test rig was designed, where 10 vol% ozone would be educted into a spent oxalic acid decomposition loop, with the loop maintained at 70 C and recirculated at 40L/min. Each of the spent oxalic acid streams would be created from three oxalic acid strikes of an F-area simulant (i.e., Purex = high Fe/Al concentration) and H-area simulant (i.e., H area modified Purex = high Al/Fe concentration) after nearing dissolution equilibrium, and then decomposed to {le} 100 Parts per Million (ppm) oxalate. Since AOP technology largely originated on using ultraviolet (UV) light as a primary catalyst, decomposition of the spent oxalic acid, well exposed to a medium pressure mercury vapor light was considered the benchmark. However, with multi-valent metals already contained in the feed, and maintenance of the UV light a concern; testing was conducted to evaluate the impact from removing the UV light. Using current AOP terminology, the test without the UV light would likely be considered an ozone based, dark, ferrioxalate type, decomposition process. Specifically, as part of the testing, the impacts from the following were investigated: (1) Importance of the UV light on the decomposition rates when decomposing 1 wt% spent oxalic acid; (2) Impact of increasing the oxalic acid strength from 1 to 2.5 wt% on the decomposition rates; and (3) For F-area testing, the advantage of increasing the spent oxalic acid flowrate from 40 L/min (liters/minute) to 50 L/min during decomposition of the 2.5 wt% spent oxalic acid. The results showed that removal of the UV light (from 1 wt% testing) slowed the decomposition rates in both the F & H testing. Specifically, for F-Area Strike 1, the time increased from about 6 hours to 8 hours. In H-Area, the impact was not as significant, with the time required for Strike 1 to be decomposed to less than 100 ppm increasing slightly, from 5.4 to 6.4 hours. For the spent 2.5 wt% oxalic acid decomposition tests (all) without the UV light, the F-area decompositions required approx. 10 to 13 hours, while the corresponding required H-Area decompositions times ranged from 10 to 21 hours. For the 2.5 wt% F-Area sludge, the increased availability of iron likely caused the increased decomposition rates compared to the 1 wt% oxalic acid based tests. In addition, for the F-testing, increasing the recirculation flow rates from 40 liter/minute to 50 liter/minute resulted in an increased decomposition rate, suggesting a better use of ozone.

Ketusky, E.; Subramanian, K.

2012-02-29T23:59:59.000Z

129

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.  

E-Print Network (OSTI)

from Ozone Reaction with HVAC Filters Hugo Destaillats,from Ozone Reaction with HVAC Filters Hugo Destaillatsfrom Ozone Reaction with HVAC Filters Hugo Destaillats

Destaillats, Hugo

2012-01-01T23:59:59.000Z

130

Membrane contactor/separator for an advanced ozone membrane reactor for treatment of recalcitrant organic pollutants in water  

Science Conference Proceedings (OSTI)

An advanced ozone membrane reactor that synergistically combines membrane distributor for ozone gas, membrane contactor for pollutant adsorption and reaction, and membrane separator for clean water production is described. The membrane reactor represents an order of magnitude improvement over traditional semibatch reactor design and is capable of complete conversion of recalcitrant endocrine disrupting compounds (EDCs) in water at less than three minutes residence time. Coating the membrane contactor with alumina and hydrotalcite (Mg/Al=3) adsorbs and traps the organics in the reaction zone resulting in 30% increase of total organic carbon (TOC) removal. Large surface area coating that diffuses surface charges from adsorbed polar organic molecules is preferred as it reduces membrane polarization that is detrimental to separation. - Graphical abstract: Advanced ozone membrane reactor synergistically combines membrane distributor for ozone, membrane contactor for sorption and reaction and membrane separator for clean water production to achieve an order of magnitude enhancement in treatment performance compared to traditional ozone reactor. Highlights: Black-Right-Pointing-Pointer Novel reactor using membranes for ozone distributor, reaction contactor and water separator. Black-Right-Pointing-Pointer Designed to achieve an order of magnitude enhancement over traditional reactor. Black-Right-Pointing-Pointer Al{sub 2}O{sub 3} and hydrotalcite coatings capture and trap pollutants giving additional 30% TOC removal. Black-Right-Pointing-Pointer High surface area coating prevents polarization and improves membrane separation and life.

Chan, Wai Kit, E-mail: kekyeung@ust.hk [Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong); Joueet, Justine; Heng, Samuel; Yeung, King Lun [Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong); Schrotter, Jean-Christophe [Water Research Center of Veolia, Anjou Recherche, Chemin de la Digue, BP 76. 78603, Maisons Laffitte, Cedex (France)

2012-05-15T23:59:59.000Z

131

Ozone, skin cancer, and the SST  

SciTech Connect

In 1971, the U.S. Congress cut off funding for development of supersonic transport aircraft prototypes when it was argued that the pollution created by SSTs could reduce the stratospheric ozone content and increase the incidence of skin cancer. At present, the theory of ozone depletion is in a rather uncertain state. Two examples of this are cited. First, ozone depletion may depend more on the availability of surfaces of aerosols and particles than on the content of chlorine. Second, it has been discovered that NO(x) can tie up active chlorine and thus reduce depletion from that source. We are therefore left with the paradoxical result that under certain circumstances SSTs flying in the lower stratospheric can actually counteract, at least partially, any ozone-depleting effects of CFCs. A recent study by scientists at the Brookhaven National Laboratory showed that melanoma rates would not be affected by changes in the ozone layer. If these results are confirmed, then much of the fear associated with ozone depletion disappears. It is difficult to tell how all this will affect a future supersonic transport program, since it is not clear whether a fleet of SSTs will increase or offset ozone depletion.

Singer, S.F.

1994-07-01T23:59:59.000Z

132

Stratospheric ozone protection: The Montreal Protocol and Title VI of the Clean Air Act Amendments of 1990  

Science Conference Proceedings (OSTI)

The stratospheric ozone layer protects the surface of the Earth from harmful ultraviolet (UV-B) radiation, which has been causally linked to skin cancer and cataracts, suppression of the human immune system, damage to crops and aquatic organisms, the formation of ground-level zone and the rapid weathering of outdoor plastics. In recent years, scientists have observed a significant deterioration of the ozone layer, particularly over the poles, but increasingly over populated regions as well. This deterioration has been attributed to the atmospheric release of certain man-made halocarbons, including chlorofluorocarbons (CFCs), halons, methyl chloroform and carbon tetrachloride. Once used extensively as propellants for aerosol sprays (but generally banned for such purposes since 1978), CFCs are widely used today as refrigerants, foams and solvents. All of these chlorinated (CFC, methyl chloroform and carbon tetrachloride) and brominated (halon) compounds are classified for regulatory purposes as Class I substances because of their significant ozone-depleting potential. Hydrochlorofluorocarbons (HCFCs), developed as alternatives to CFCs and halons for many different applications, have been classified for regulatory purposes as Class II substances because of their relatively less destructive impact on stratospheric ozone. This paper describes the following regulations to reduce destruction of the ozone layer: the Montreal Protocol; Title VI of the Clean air Act Amendments of 1990; Accelerated Phase-out schedules developed by the countries which signed the Montreal Protocol; Use restrictions; Recycling and Emission reduction requirements; Servicing of motor vehicle air conditions; ban on nonessential products; labeling requirements; safe alternatives. 6 refs.

Babst, C.R. III

1993-08-01T23:59:59.000Z

133

Baseline Ozone Results from 1923 to 1955  

Science Conference Proceedings (OSTI)

Baseline total atmospheric ozone values have been derived, using the Chappuis band, from historical data for 11 Smithsonian sites, including both Northern and Southern Hemispheres. The main baselines consist of 1194 and 970 days respectively for ...

Ronald J. Angione; Robert G. Roosen

1983-08-01T23:59:59.000Z

134

Climatological effects of atmospheric ozone: A review  

Science Conference Proceedings (OSTI)

The paper presents some results of model estimates of ozone (O/sub 3/) climatological effects. Specific issues involved in O/sub 3/ climate study and future research needs are discussed. (ACR)

Wang, W.C.

1984-01-01T23:59:59.000Z

135

Tropospheric Ozone in Louisiana and Synoptic Circulation  

Science Conference Proceedings (OSTI)

Tropospheric ozone (O3) is a pollutant of increasing concern in many urban areas in the United States. There is an increasing need to understand the geographical and meteorological properties associated with O3, particularly because of the ...

Robert V. Rohli; Michelle M. Russo; Anthony J. Vega; John B. Cole

2004-10-01T23:59:59.000Z

136

BNL | Carbon Cycle Science  

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

The Carbon Cycle Science & Technology Group aims to increase understanding The Carbon Cycle Science & Technology Group aims to increase understanding of the impacts of global change on managed and unmanaged ecosystems and improve knowledge of possible global change mitigation approaches. The group has three main focus areas. FACE Climate Change Experimental Facility Design and Management The CCS&T group is an internationally recognized leader in the development of Free Air CO2 Enrichment (FACE) research facilities. We are interested in the design and management of manipulative experiments that examine the effects of carbon dioxide, ozone, other atmospheric pollutants, temperature and precipitation on natural and managed ecosystems. FACE Plant Physiology and High Throughput Biochemical Phenotyping At FACE facilities we have studied the mechanisms that underlie the

137

Global Variation in Total Ozone and Layer-Mean Ozone: An Update Through 1981  

Science Conference Proceedings (OSTI)

Total-ozone variations have been updated through 1981 for four regions in north temperate latitudes, the five climatic zones, both hemispheres, and the world. Also updated through 1981 are ozone values in height layers 32–48 km, 24–32 km, 16–24 ...

J. K. Angell; J. Korshover

1983-09-01T23:59:59.000Z

138

INFRARED ABSORPTION SPECTROSCOPY OF CARBON MONOXIDE ON NICKEL FILMS: A LOW TEMPERATURE THERMAL DETECTION TECHNIQUE  

E-Print Network (OSTI)

requirements are a low heat capacity sample and a smallwith hundreds of times the heat capacity of the nickel filmsOnly very thin,low heat capacity samples can be used. A tiny

Bailey, Robert Brian

2011-01-01T23:59:59.000Z

139

REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS  

DOE Green Energy (OSTI)

Uses for structured catalytic supports, such as ceramic straight-channel monoliths and ceramic foams, have been established for a long time. One of the most prominent examples is the washcoated ceramic monolith as a three-way catalytic converter for gasoline-powered automobiles. A distinct alternative to the ceramic monolith is the metal foam, with potential use in fuel cell-powered automobiles. The metal foams are characterized by their pores per inch (ppi) and density ({rho}). In previous research, using 5 wt% platinum (Pt) and 0.5 wt% iron (Fe) catalysts, washcoated metal foams, 5.08 cm in length and 2.54 cm in diameter, of both varying and similar ppi and {rho} were tested for their activity (X{sub CO}) and selectivity (S{sub CO}) on a CO preferential oxidation (PROX) reaction in the presence of a H{sub 2}-rich gas stream. The variances in these metal foams' activity and selectivity were much larger than expected. Other structured supports with 5 wt% Pt, 0-1 wt% Fe weight loading were also examined. A theory for this phenomenon states that even though these structured supports have a similar nominal catalyst weight loading, only a certain percentage of the Pt/Fe catalyst is exposed on the surface as an active site for CO adsorption. We will use two techniques, pulse chemisorption and temperature programmed desorption (TPD), to characterize our structured supports. Active metal count, metal dispersion, and other calculations will help clarify the causes for the activity and selectivity variations between the supports. Results on ceramic monoliths show that a higher Fe loading yields a lower dispersion, potentially because of Fe inhibition of the Pt surface for CO adsorption. This theory is used to explain the reason for activity and selectivity differences for varying ppi and {rho} metal foams; less active and selective metal foams have a lower Fe loading, which justifies their higher metal dispersion. Data on the CO desorption temperature and average metal crystallite size for TPD are also collected.

Paul Chin; George W. Roberts; James J. Spivey

2003-12-31T23:59:59.000Z

140

Validation Study of the MOPITT Retrieval Algorithm: Carbon Monoxide Retrieval from IMG Observations during WINCE  

Science Conference Proceedings (OSTI)

The Measurement of Pollution in the Troposphere (MOPITT) instrument is an eight-channel gas correlation radiometer selected for the Earth Observing System (EOS) Terra spacecraft launched in December 1999. Algorithms for the retrieval of ...

Jinxue Wang; John C. Gille; Henry E. Revercomb; Von P. Walden

2000-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Nitric oxide and carbon monoxide in cigarette smoke in the development of cardiorespiratory disease in smokers  

E-Print Network (OSTI)

in General and Geriatric Medicine, West Suffolk Hospital . 1985 - 1986 . 3) Consultant Physician in General and Geriatric Medicine, Huntingdon District Health Au~hority. 1986. Acknowledgements I am most grateful to the East Anglian Regional Health... was starting in Virginia. Growing was also started at that time in other parts of the world where the climate was suitable e.g. Turkey (Akehurst 1981). During the 18th century snuff became the most popular way of taking tobacco but the habit rapidly...

Borland, Colin David Ross

1988-10-18T23:59:59.000Z

142

Influence of solid fuel on the carbon-monoxide and nitrogen-oxide emissions on sintering  

SciTech Connect

Laboratory and industrial research now underway at the sintering plant of AO Mittal Steel Temirtau is focusing on the preparation of fuel of optimal granulometric composition, the replacement of coke fines, and the adaptation of fuel-input technology so as to reduce fuel consumption and toxic emissions without loss of sinter quality.

M.F. Vitushchenko; N.L. Tatarkin; A.I. Kuznetsov; A.E. Vilkov [AO Mittal Steel Temirtau, Temirtau (Kazakhstan)

2007-07-01T23:59:59.000Z

143

Syngas formation in methane flames and carbon monoxide release during quenching  

SciTech Connect

Following a recent investigation into chemi-ionization and chemiluminescence during gradual aeration of small, laminar methane flames, we proposed that partial oxidation products, or syngas constituents, formed in the pre-flame zone well below the luminous region, were responsible for the observed effects. We therefore map temperature, CO, and H{sub 2} for geometries and conditions relevant to burners in domestic boiler systems, to assess the potential hazard of CO release into the ambient atmosphere, should any partial quenching occur. CO concentrations peaks of 5.5 volume % are recorded in the core surrounding the axis. Appreciable CO concentrations are also found in the absence of added air. Experiments on various burner port geometries and temperatures suggest that this is not due to air entrainment at the flame base but to diffusion from zones closer to the flame. Next, quenching surfaces such as grids, perforated plates and flame trap matrices of different metals are progressively lowered into the flame. To avoid flow line distortion, suction aspirates the quenched products. The highest emission rate occurs with the quenching plane some 4 mm above the burner; further lowering of the quenching surface causes flame extinction. The maximum CO release is close to converting 10% of the CH{sub 4} feed, with some variation with quenching material. Expressing this potential release in terms of, e.g. boiler power, predicts a potentially serious hazard. Results of numerical simulations adequately parallel the experimental sampling profiles and provide insights into local concentrations, as well as the spatially resolved CO flux, which is calculated for a parabolic inlet flow profile. Integration across the stream implies, on the basis of the simulation, a possible tripling of the experimental CO release, were quenching simply to release the local gas composition into the atmosphere. Comparison with experiment suggests some chemical interaction with the quenching surface. (author)

Weinberg, Felix; Carleton, Fred; Houdmont, Raphael [Department of Chemical Engineering, Imperial College, London (United Kingdom); Dunn-Rankin, Derek; Karnani, Sunny [Department of Mechanical and Aerospace Engineering, University of California, Irvine (United States)

2011-02-15T23:59:59.000Z

144

Detection of carbon monoxide (CO) as a furnace byproduct using a rotating mask spectrometer.  

Science Conference Proceedings (OSTI)

Sandia National Laboratories, in partnership with the Consumer Product Safety Commission (CPSC), has developed an optical-based sensor for the detection of CO in appliances such as residential furnaces. The device is correlation radiometer based on detection of the difference signal between the transmission spectrum of the sample multiplied by two alternating synthetic spectra (called Eigen spectra). These Eigen spectra are derived from a priori knowledge of the interferents present in the exhaust stream. They may be determined empirically for simple spectra, or using a singular value decomposition algorithm for more complex spectra. Data is presented on the details of the design of the instrument and Eigen spectra along with results from detection of CO in background N{sub 2}, and CO in N{sub 2} with large quantities of interferent CO{sub 2}. Results indicate that using the Eigen spectra technique, CO can be measured at levels well below acceptable limits in the presence of strongly interfering species. In addition, a conceptual design is presented for reducing the complexity and cost of the instrument to a level compatible with consumer products.

Sinclair, Michael B.; Flemming, Jeb Hunter; Blair, Raymond (Honeywell Federal Manufacturing & Technologies, Albuqueruque, NM); Pfeifer, Kent Bryant

2006-02-01T23:59:59.000Z

145

Carbon Monoxide Urban Emission Monitoring: A Ground-Based FTIR Case Study  

Science Conference Proceedings (OSTI)

The characterization and the precise measurements of atmospheric pollutant’s concentration are essential to improve the understanding and modeling of urban air pollution processes. The QualAir platform at the Université Pierre et Marie Curie (UPMC)...

Y. Té; E. Dieudonné; P. Jeseck; F. Hase; J. Hadji-Lazaro; C. Clerbaux; F. Ravetta; S. Payan; I. Pépin; D. Hurtmans; J. Pelon; C. Camy-Peyret

2012-07-01T23:59:59.000Z

146

REFORMULATION OF COAL-DERIVED TRANSPORTATION FUELS: SELECTIVE OXIDATION OF CARBON MONOXIDE ON METAL FOAM CATALYSTS  

DOE Green Energy (OSTI)

Hydrocarbon fuels must be reformed in a series of steps to provide hydrogen for use in proton exchange membrane fuel cells (PEMFCs). Preferential oxidation (PROX) is one method to reduce the CO concentration to less than 10 ppm in the presence of {approx}40% H{sub 2}, CO{sub 2}, and steam. This will prevent CO poisoning of the PEMFC anode. Structured supports, such as ceramic monoliths, can be used for the PROX reaction. Alternatively, metal foams offer a number of advantages over the traditional ceramic monolith.

Paul Chin; Xiaolei Sun; George W. Roberts; Amornmart Sirijarhuphan; Sourabh Pansare; James G. Goodwin Jr; Richard W. Rice; James J. Spivey

2005-06-01T23:59:59.000Z

147

Hazardous Off-Gassing of Carbon Monoxide and Oxygen Depletion during Ocean Transportation of  

E-Print Network (OSTI)

which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. doi:10.1093/annhyg/men013

Wood Pellets; Urban Svedberg; Jerker Samuelsson; Staffan Melin

2008-01-01T23:59:59.000Z

148

Continuous Measurement of Carbon Monoxide Improves Combustion Efficiency of CO Boilers  

E-Print Network (OSTI)

The paper describes the application of in-situ flue gas CO measurement in the operation of CO Boilers and details the steps needed to optimize combustion efficiency.

Gilmour, W. A.; Pregler, D. N.; Branham, R. L.; Prichard, J. J.

1981-01-01T23:59:59.000Z

149

Technology development for iron Fischer-Tropsch catalysis. [Pretreatment of catalyst in carbon monoxide  

DOE Green Energy (OSTI)

The present study shows that activation of a high surface area Fe{sub 2}O{sub 3} catalyst in CO in a (CSTR), continuously stirred tank reactor using tetralin as solvent results in an activated that is three times of material that is activated in H{sub 2} or directly in the syngas.

Not Available

1991-01-01T23:59:59.000Z

150

Synthesis of higher alcohols from carbon monoxide and hydrogen in a slurry reactor  

DOE Green Energy (OSTI)

Higher, i.e. C{sub 2{sup +}}, alcohols are desired as gasoline additives, feedstocks for producing ethers and as alternative fuels for automobiles. In all cases, the backbone branching of an alcohol improves octane rating, which is essential for good engine performance. These types of branched, higher alcohols are the desired products for a process converting synthesis gas, a CO and H{sub 2} mixture, often generated from coal gasification. Based on this premise, promoted ZnCr oxide catalysts appear to be as one of the best avenues for further investigation. Once this investigation is complete, a natural extension is to replace the Cr in the ZnCr oxide catalyst with Mo and W, both in the same elemental triad with Cr. Mo has already been shown as an active HAS catalyst, both on a SiO{sub 2} support and in the MoS{sub 2} form. The three catalyst combinations, ZnMo, ZnW, and MnCr oxides will be tested in the stirred autoclave system. However, if none of the three indicate any comparable activity and/or selectivity toward higher alcohols as compared with other HAS catalysts, then an investigation of the effects of Cs promotion on the ZnCr oxide methanol catalysts will be executed.

McCutchen, M.S.

1992-08-28T23:59:59.000Z

151

Effects of Ozone Heating on Forced Equatorial Kelvin Waves  

Science Conference Proceedings (OSTI)

An equatorial beta-plane model of the stratosphere is used to examine the effects of longwave radiational cooling, ozone photochemistry, and ozone advection on the linear spatial modulation of forced equatorial Kelvin waves. The model atmosphere ...

Robert S. Echols; Terrence R. Nathan

1996-01-01T23:59:59.000Z

152

Determination of Total Ozone Amount from TIROS Radiance Measurements  

Science Conference Proceedings (OSTI)

Total ozone amounts are determined from atmospheric radiances measured by the TIROS Operational Vertical Sounder (TOVS). The retrieval procedure is one of linear regression where total ozone amounts derived from Dobson spectrophotometer ...

Walter G. Planet; David S. Crosby; James H. Lienesch; Michael L. Hill

1984-02-01T23:59:59.000Z

153

Vertical Structure of the Anomalous 2002 Antarctic Ozone Hole  

Science Conference Proceedings (OSTI)

Ozone estimates from observations by the NOAA-16 Solar Backscattered Ultraviolet (SBUV/2) instrument and Television Infrared Observation Satellite (TIROS-N) Operational Vertical Sounder (TOVS) are used to describe the vertical structure of ozone ...

S. Kondragunta; L. E. Flynn; A. Neuendorffer; A. J. Miller; C. Long; R. Nagatani; S. Zhou; T. Beck; E. Beach; R. McPeters; R. Stolarski; P. K. Bhartia; M. T. DeLand; L.-K. Huang

2005-03-01T23:59:59.000Z

154

Surface Ozone During the Second Half of the Nineteenth Century  

Science Conference Proceedings (OSTI)

During the last few years, increases in tropospheric ozone concentration have been detected and the need for more study has been recognized. There is very little knowledge about surface ozone background concentrations prior to the advent of ...

Rumen D. Bojkov

1986-03-01T23:59:59.000Z

155

Relations between Meteorology and Ozone in the Lake Michigan Region  

Science Conference Proceedings (OSTI)

The field program phase of the Lake Michigan Ozone Study (LMOS) took place during the summer of 1991. Observed ozone concentrations and weather variables have been analyzed for the Lake Michigan region and the eastern United States for four 1991 ...

Steven R. Hanna; Joseph C. Chang

1995-03-01T23:59:59.000Z

156

Space and Time Scales in Ambient Ozone Data  

Science Conference Proceedings (OSTI)

This paper describes the characteristic space and time scales in time series of ambient ozone data. The authors discuss the need and a methodology for cleanly separating the various scales of motion embedded in ozone time series data, namely, ...

S. T. Rao; I. G. Zurbenko; R. Neagu; P. S. Porter; J. Y. Ku; R. F. Henry

1997-10-01T23:59:59.000Z

157

OZONE PRODUCTION IN URBAN PLUMES.  

SciTech Connect

Ozone levels observed during a field campaign in Houston were significantly higher than that observed in Phoenix or Philadelphia. An examination of the slope of O{sub x} versus NO{sub z} in the urban plumes shows that NO{sub x} is used 2 to 3 times more efficiently in Houston as compared with Phoenix and Philadelphia. Representative values of OPEx are 7-12, 3, and 4, in Houston, Phoenix, and Philadelphia. Aircraft observations have been used to calculate P(O{sub 3})/P(NO{sub z}). Values in Houston are significantly higher than in Phoenix and Philadelphia. We show that P(O{sub 3})/P(NO{sub z}) is proportional to a VOC/NO{sub 2}-OH reactivity ratio. High values of P(O{sub 3})/P(NO{sub z}) in Houston are due to emissions of reactive olefins from the ship channel region. It is significant that high values of P(O{sub 3})/P(NO{sub z}) occur at NO{sub x} levels up to several 10's of ppb. Not only is the chemistry efficient but it will be long lasting. The occurrence of high NO{sub x} and high OPEx is fostered by the co-location of VOC and NO{sub x} sources in the Houston industrial areas.

KLEINMAN,L.

2001-09-17T23:59:59.000Z

158

Iron Catalysis in Oxidations by Ozone - Energy Innovation Portal  

Wind Energy; Partners (27) Visual Patent Search; Success Stories; News; Events; Industrial Technologies Iron Catalysis in Oxidations by Ozone Ames ...

159

Ozonization of humic acids in brown coal oxidized in situ  

SciTech Connect

The effect of the ozonization of humic acids in chloroform and glacial acetic acid media on the yield and component composition of the resulting products was studied. The high efficiency of ozonization in acetic acid was found. Water-soluble low-molecular-weight substances were predominant among the ozonization products.

S.A. Semenova; Yu.F. Patrakov; M.V. Batina [Russian Academy of Sciences, Kemerovo (Russia). Institute of Coal and Coal Chemistry

2008-10-15T23:59:59.000Z

160

Liquid-phase ozonation of fusainized components of SS coal  

SciTech Connect

Stepwise ozonation of leaning fusainized components of fossil coal of SS grade in acetic acid was studied. The dynamics of accumulation of oxygen-containing groups in the course of ozonation was examined, and the main pathways of the reaction of ozone with structural fragments of the coal substance were revealed.

Semenova, S.A.; Patrakov, Y.F. [Russian Academy of Sciences, Kemerovo (Russian Federation)

2007-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Ozone Removal by Filters Containing Activated Carbon: A Pilot Study  

E-Print Network (OSTI)

organic compounds. IAQ'92, ASHRAE, Atlanta: 233-241.Indoor Air 18(2): 156-70. ASHRAE (1992). Gravimetric andparticulate matter. ANSI/ASHRAE standard 52.1-1992 Atlanta,

Fisk, William

2012-01-01T23:59:59.000Z

162

Effect of Ventilation Strategies on Residential Ozone Levels  

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

Effect of Ventilation Strategies on Residential Ozone Levels Effect of Ventilation Strategies on Residential Ozone Levels Title Effect of Ventilation Strategies on Residential Ozone Levels Publication Type Journal Article LBNL Report Number LBNL-5889E Year of Publication 2012 Authors Walker, Iain S., and Max H. Sherman Journal Building and Environment Volume 59 Start Page 456 Pagination 456-465 Date Published 01/2013 Keywords ashrae standard 62,2, filtration, infiltration, mechanical ventilation, ozone, simulation Abstract Elevated outdoor ozone levels are associated with adverse health effects. Because people spend the vast majority of their time indoors, reduction in indoor levels of ozone of outdoor origin would lower population exposures and might also lead to a reduction in ozone---associated adverse health effects. In most buildings, indoor ozone levels are diminished with respect to outdoor levels to an extent that depends on surface reactions and on the degree to which ozone penetrates the building envelope. Ozone enters buildings from outdoors together with the airflows that are driven by natural and mechanical means, including deliberate ventilation used to reduce concentrations of indoor---generated pollutants. When assessing the effect of deliberate ventilation on occupant health one should consider not only the positive effects on removing pollutants of indoor origin but also the possibility that enhanced ventilation might increase indoor levels of pollutants originating outdoors. This study considers how changes in residential ventilation that are designed to comply with ASHRAE Standard 62.2 might influence indoor levels of ozone. Simulation results show that the building envelope can contribute significantly to filtration of ozone. Consequently, the use of exhaust ventilation systems is predicted to produce lower indoor ozone concentrations than would occur with balanced ventilation systems operating at the same air---exchange rate. We also investigated a strategy for reducing exposure to ozone that would deliberately reduce ventilation rates during times of high outdoor ozone concentration while still meeting daily average ventilation requirements.

163

Carbon Dioxide Hydrate Process for Gas Separation from a Shifted Synthesis Gas Stream  

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

Sequestration and Sequestration and Gasification Technologies Carbon DioxiDe HyDrate ProCess for Gas seParation from a sHifteD syntHesis Gas stream Background One approach to de-carbonizing coal is to gasify it to form fuel gas consisting predominately of carbon monoxide and hydrogen. This fuel gas is sent to a shift conversion reactor where carbon monoxide reacts with steam to produce carbon dioxide (CO 2 ) and hydrogen. After scrubbing the CO 2 from the fuel, a stream of almost pure hydrogen stream remains, which can be burned in a gas turbine or used to power a fuel cell with essentially zero emissions. However, for this approach to be practical, it will require an economical means of separating CO 2 from mixed gas streams. Since viable options for sequestration or reuse of CO

164

THE EFFECTS OF ENERGY-EFFICIENT VENTILATION RATES ON INDOOR AIR QUALITY AT AN OHIO ELEMENTARY SCHOOL  

E-Print Network (OSTI)

inorganic pollutants: carbon dioxides carbon monoxides ozonetotal aldehydes, carbon dioxide, carbon monoxide, sulfurquality standards. Carbon dioxide concentrations increased

Berk, J.V.

2013-01-01T23:59:59.000Z

165

Analysis of black carbon and carbon monoxide observed over the Indian Ocean: Implications for emissions and photochemistry  

E-Print Network (OSTI)

, the inventories use year-2000 energy forecasts (off a 1995 base) from the RAINS-Asia (regional air pollution running under optimal conditions; in- use engines operating in developing countries may eject more OC; published 4 September 2002. [1] Air from South Asia carries heavy loadings of organic and light

Dickerson, Russell R.

166

Ozone Conservation and Entrainment in Cumulus Congestus  

Science Conference Proceedings (OSTI)

This study demonstrates that ozone mixing ratio (O3) is conserved during moist convection and can be used as a tracer for cloud entrainment studies. The approach used is to apply mixing line analysis to pairs of liquid water potential temperature ...

R. Pearson Jr.; C. J. Weaver

1989-07-01T23:59:59.000Z

167

Surface Ozone Pattern in Hong Kong  

Science Conference Proceedings (OSTI)

Surface ozone (O3) and its precursors in rural and urban areas of Hong Kong are analyzed through the seasonal, temporal, and spatial variation patterns. The seasonal O3 shows a unique pattern with a major peak in autumn and a trough in summer. ...

L. Y. Chan; C. Y. Chan; Y. Qin

1998-10-01T23:59:59.000Z

168

Corona method and apparatus for altering carbon containing compounds  

DOE Patents (OSTI)

The present invention is a method and apparatus for altering a carbon containing compound in an aqueous mixture. According to a first aspect of the present invention, it has been discovered that for an aqueous mixture having a carbon containing compound with an ozone reaction rate less than the ozone reaction rate of pentachlorophenol, use of corona discharge in a low or non-oxidizing atmosphere increases the rate of destruction of the carbon containing compound compared to corona discharge an oxidizing atmosphere. For an aqueous mixture containing pentachlorphenol, there was essentially no difference in destruction between atmospheres. According to a second aspect of the present invention, it has been further discovered that an aqueous mixture having a carbon containing compound in the presence of a catalyst and oxygen resulted in an increased destruction rate of the carbon containing compound compared to no catalyst.

Sharma, Amit K. (Richland, WA); Camaioni, Donald M. (Richland, WA); Josephson, Gary B. (Richland, WA)

1999-01-01T23:59:59.000Z

169

Corona Method And Apparatus For Altering Carbon Containing Compounds  

DOE Patents (OSTI)

The present invention is a method and apparatus for altering a carbon-containing compound in an aqueous mixture. According to a first aspect of the present invention, it has been discovered that for an aqueous mixture having a carbon containing compound with an ozone reaction rate less than the ozone reaction rate of pentachlorophenol, use of corona discharge in a low or non-oxidizing atmosphere increases the rate of destruction of the carbon containing compound compared to corona discharge an oxidizing atmosphere. For an aqueous mixture containing pentachlorphenol, there was essentially no difference in destruction between atmospheres. According to a second aspect of the present invention, it has been further discovered that an aqueous mixture having a carbon-containing compound in the presence of a catalyst and oxygen resulted in an increased destruction rate of the carbon containing compound compared to no catalyst.

Sharma, Amit K. (Plainsboro, NJ); Camaioni, Donald M. (Richland, WA); Josephson; Gary B. (Richland, WA)

2004-05-04T23:59:59.000Z

170

Interannual Variability and Trends of Extratropical Ozone. Part I: Northern Hemisphere  

Science Conference Proceedings (OSTI)

The authors apply principal component analysis (PCA) to the extratropical total column ozone from the combined merged ozone data product and the European Centre for Medium-Range Weather Forecasts assimilated ozone from January 1979 to August ...

Xun Jiang; Steven Pawson; Charles D. Camp; J. Eric Nielsen; Run-Lie Shia; Ting Liao; Varavut Limpasuvan; Yuk L. Yung

2008-10-01T23:59:59.000Z

171

Quality of Total Ozone Measured by the Focused Sun Method Using a Brewer Spectrophotometer  

Science Conference Proceedings (OSTI)

Strong ozone depletions and large natural variations in total ozone have been observed at high latitudes. Accurate measurements of total ozone are important so as not to misinterpret the involved processes and to track correctly the variations. ...

Weine Josefsson

2003-01-01T23:59:59.000Z

172

NRC symposium explores links between greenhouse gases, stratospheric ozone  

SciTech Connect

Two important climatic issues stratospheric ozone depletion and greenhouse gas increase and the apparent connection between them led to the holding in March 1988 of a Joint Symposium on Ozone Depletion, Greenhouse Gases and Climate Change. This symposium was primarily concerned with the linkages between ozone depletion and increasing greenhouse gases and with their combined effect in causing climate change to occur on a global scale. The presentations review the current state of knowledge about stratospheric ozone depletion, discuss the probable effect of predicted greenhouse gas increase on future ozone trends, summarize observational data on changing atmospheric chemistry and associated atmospheric temperatures, and describe the continuing effort to model and predict future scenarios of climatic change relative to ozone and greenhouse gases in both the stratosphere and the troposphere.

1989-04-01T23:59:59.000Z

173

Ozone, Air Pollution, and Respiratory Health  

E-Print Network (OSTI)

Of the outdoor air pollutants regulated by the Clean Air Act of 1970 (and recently revised in 1990), ozone has been the one pollutant most difficult to control within the federal standards. The known human health effects are all on the respiratory system. At concentrations of ozone which occur during summer air-pollution episodes in many urban metropolitan areas of the United States, a portion of the healthy population is likely to experience symptoms and reversible effects on lung function, particularly if exercising heavily outdoors. More prolonged increase in airway responsiveness and the presence of inflammatory cells and mediators in the airway lining fluid may also result from these naturally occurring exposures. Serial exposures to peak levels of ozone on several consecutive days are more characteristic of pollution episodes in the Northeast United States and may be associated with recurrent symptoms. No "high-risk " or more sensitive group has been found, in contrast to the case of sulfur dioxide, to which asthmatics are more susceptible than normals. The occurrence of multiple exposure episodes within a single year over many years in some areas of California has led to studies looking for chronic effects of ozone exposure on the lung. To date, no conclusive studies have been reported, although further work is under way. Much of what we know about the effects of this gas on the lung are based on controlled exposures to pure gas within an environmental exposure laboratory. Interactions between substances which commonly co-occur in air-pollution episodes are also under investigation.

William S

1991-01-01T23:59:59.000Z

174

Ozone and UV for Grain Milling Systems  

Science Conference Proceedings (OSTI)

Recognizing the current concerns with food safety, First Energy Services and EPRI collaborated in a project to investigate the feasibility of using ozone as a substitute for chlorinated water to control bacteria and mold at the Harvest States Amber Milling facility in Huron, Ohio. Traditionally, chlorinated water is used to control bacteria and mold in grain processing. Since chlorine usage can be costly and because chlorine presents problems in storage and safe handling of chlorine gas, the project part...

2000-12-13T23:59:59.000Z

175

An Assessment of Tropospheric Ozone Pollution  

Science Conference Proceedings (OSTI)

This assessment was prepared as an initiative of the North American Research Strategy for Tropospheric Ozone (NARSTO). The NARSTO partnership is a non-binding, tri-national public/private alliance, open to science agencies, regulatory agencies, regulated industries, academic institutions, environmentalists, and public interests groups in Canada, Mexico, and the United States. The NARSTO mission is to plan, coordinate, and facilitate comprehensive, long-term, policy-relevant scientific research and assess...

2000-09-25T23:59:59.000Z

176

In-Situ Electrical Studies on Ozone Functionalization of Graphene  

Science Conference Proceedings (OSTI)

It is found that the ozone molecules at 300 K are reversibly physisorbed on the surface of graphene and the physisorption bonding is removed immediately after  ...

177

Stratospheric ozone in the planetary boundary layer  

Science Conference Proceedings (OSTI)

The impact of stratospheric ozone associated with rapid transport processes at remote Whiteface Mountain, New York was studied using /sup 7/Be as a stratospheric tracer. The seasonal variation of /sup 7/Be concentration suggests that the greatest impact of stratospheric ozone at Whiteface Mountain occurs during late spring and early summer consistent with the time when the impact of tropopause folding should be maximum. This is also the time when tropospheric photochemical ozone production is likely to be maximum. The analysis of 33 cases with peak /sup 7/Be > 175 fCi/m/sup 3/ shows strong correlation between averaged O/sub 3/ and /sup 7/Be concentration. Assuming peak /sup 7/Be is associated with rapid transport we estimate 12 ppbv as the 24th average increased O/sub 3/ due to tropopause folding events. Also the average SO/sub 4/2/sup -/ concentration peaked a day after /sup 7/Be suggesting the backside of the weather system responsible for rapid subsidence also favors transport to this site from distant urban-industrial centers. Thus, photochemical pollution episodes may be intensified by stratospheric subsidence.

Dutkiewicz, V.A.; Husain, L.; Rusheed, A.

1980-01-01T23:59:59.000Z

178

The Cost of Crop Damage Caused by Ozone Air Pollution From Motor Vehicles  

E-Print Network (OSTI)

L. (1982). Assessment of crop loss from ozone. Journal of1984). Assessing impacts of ozone on agricultural crops: II.crop yield functions and alternative exposure statistics.

Murphy, James; Delucchi, Mark; McCubbin, Donald; Kim, H.J.

1999-01-01T23:59:59.000Z

179

Ozonated Laundry: An Analysis of Its Applications and Market Potential  

Science Conference Proceedings (OSTI)

Electric utilities can create value for their customers and revenues for themselves by promoting new energy-intensive technologies. This report focuses on one such electrotechnology, ozonated laundry. It describes the current state of the technology and its economic prospects and explores how utilities can benefit from increased marketplace acceptance of ozonated laundry.

1998-12-23T23:59:59.000Z

180

Massive global ozone loss predicted following regional nuclear conflict  

E-Print Network (OSTI)

Massive global ozone loss predicted following regional nuclear conflict Michael J. Mills* , Owen B a chemistry-climate model and new estimates of smoke produced by fires in contemporary cities to calculate the impact on stratospheric ozone of a regional nuclear war between developing nuclear states involving 100

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Atmospheric Environment 41 (2007) 31513160 Ozone removal by HVAC filters  

E-Print Network (OSTI)

Atmospheric Environment 41 (2007) 3151­3160 Ozone removal by HVAC filters P. Zhao, J.A. Siegel�, R May 2006; accepted 14 June 2006 Abstract Residential and commercial HVAC filters that have been loaded of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial

Siegel, Jeffrey

182

Proceedings: Indoor Air 2005 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS  

E-Print Network (OSTI)

Proceedings: Indoor Air 2005 2366 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS P Zhao1,2 , JA Siegel1, Austin, Texas 78758, USA ABSTRACT HVAC filters have a significant influence on indoor air quality% for Filter #2 at a face velocity of 0.81 cm/s. The potential for HVAC filters to affect ozone concentrations

Siegel, Jeffrey

183

The 1983 and 1985 Anomalies in Ozone Distribution in Perspective  

Science Conference Proceedings (OSTI)

Studies of the amount of total ozone at many observatories show that the negative 1983 deviation from the long-term average exceeded 2?, and was the greatest in magnitude for an annual deviation in their entire record., the total ozone in ...

Rumen D. Bojkov

1987-10-01T23:59:59.000Z

184

Autoregressive forecast of monthly total ozone concentration: A neurocomputing approach  

Science Conference Proceedings (OSTI)

The present study endeavors to generate autoregressive neural network (AR-NN) models to forecast the monthly total ozone concentration over Kolkata (22^o34', 88^o22'), India. The issues associated with the applicability of neural network to geophysical ... Keywords: Autoregressive moving average, Autoregressive neural network, Monthly total ozone, Predictive model

Goutami Chattopadhyay; Surajit Chattopadhyay

2009-09-01T23:59:59.000Z

185

An Analysis of Tropopause Pressure and Total Ozone Correlations  

Science Conference Proceedings (OSTI)

The relationship between total ozone and tropopause pressure is analyzed using 4 years (1979–82) of Nimbus-7 total ozone data and NMC global analyses of tropopause on a 5° by 5° grid. The fields are separated into medium (synoptic) and large ...

Siegfried D. Schubert; Marie-Jeanne Munteanu

1988-03-01T23:59:59.000Z

186

An Update through 1985 of the Variations in Global Total Ozone and North Temperate Layer-Mean Ozone  

Science Conference Proceedings (OSTI)

Total-ozone variations in five climatic zones and the world as a whole, as well as ozone variations in tropospheric and stratospheric layers of the north temperate zone, have been updated through 1985 by means of Dobson, ozonesonde and Umkehr ...

J. K. Angell

1988-01-01T23:59:59.000Z

187

Quantification of Black Carbon and Other Pollutant Emissions from a  

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

Quantification of Black Carbon and Other Pollutant Emissions from a Quantification of Black Carbon and Other Pollutant Emissions from a Traditional and an Improved Cookstove Title Quantification of Black Carbon and Other Pollutant Emissions from a Traditional and an Improved Cookstove Publication Type Report LBNL Report Number LBNL-6062E Year of Publication 2010 Authors Kirchstetter, Thomas W., Chelsea Preble, Odelle L. Hadley, and Ashok J. Gadgil Keywords aethalometer, Berkeley Darfur Stove, black carbon, carbon monoxide, climate change, DustTrak, global warming, improved cookstoves, indoor air quality, LBNL Stove Testing Facility, particulate matter, photoacoustic absorption spectrometer, pollutant emission factor, three-stone fire Abstract Traditional methods of cooking in developing regions of the world emit pollutants that

188

Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction  

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

Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction with HVAC Filters Title Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction with HVAC Filters Publication Type Conference Proceedings Year of Publication 2009 Authors Destaillats, Hugo, Wenhao Chen, Michael G. Apte, Nuan Li, Michael Spears, Jérémie Almosni, Jianshun Zheng, and William J. Fisk Conference Name Proceedings of the Healthy Buildings 2009 Conference Conference Location Syracuse, NY Keywords building-related symptoms, hvac filter, ozone, ptr-ms, secondary pollutants Abstract We used Proton Transfer Reaction - Mass Spectrometry (PTR-MS) and conventional sampling methods to monitor and identify trace level organic pollutants formed in heterogeneous reactions between ozone and HVAC filters in real time. Experiments were carried out using a bench-scale flow tube reactor operating with dry air and humidified air (50% RH), at realistically high ozone concentrations (150 ppbv). We explored different filter media (i.e., fiberglass and cotton/polyester blends) and different particle loadings (i.e., clean filter and filters loaded with particles for 3 months at the Lawrence Berkeley National Laboratory and the Port of Oakland, CA). Detailed emission dynamics of very low levels of certain organic pollutants from filter media upon ozone exposure in the presence of moisture have been obtained and analyzed.

189

Ozone depletion, greenhouse gases, and climate change: Proceedings  

SciTech Connect

This symposium was primarily concerned with the linkages between ozone depletion and increasing greenhouse gases and with their combined effect in causing climate change to occur on a global scale. The presentations in these proceedings review the current state of knowledge about stratospheric ozone depletion, discuss the probable effect of predicted greenhouse gas increase on future ozone trends, summarize observational data on changing atmospheric chemistry and associated atmospheric temperatures, and describe the continuing effort to model and predict future scenarios of climatic change relative to ozone and greenhouse gases in both the stratosphere and the troposphere. Some of the questions and answers that followed the presentations have been included when they highlight noteworthy points that were not covered in the presentation itself. The request by the National Climate Program Office for a symposium on the above related issues is included. The symposium agenda and participants are given. As well as a glossary of special terms and abbreviations. In summary, the Joint Symposium on Ozone Depletion, Greenhouse Gases, and Climate Change reviewed the magnitude and causes of stratospheric ozone depletion and examined the connections that exist between this problem and the impending climate warming to increasing greenhouse gases. The presentations of these proceedings indicate that the connections are real and important, and that the stratospheric ozone depletion and tropospheric greenhouse warming problems must be studied as parts of an interactive global system rather than as more or less unconnected events.

1989-01-01T23:59:59.000Z

190

Sensitivity Analysis of Ozone Formation and Transport for a Central  

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

Sensitivity Analysis of Ozone Formation and Transport for a Central Sensitivity Analysis of Ozone Formation and Transport for a Central California Air Pollution Episode Title Sensitivity Analysis of Ozone Formation and Transport for a Central California Air Pollution Episode Publication Type Journal Article Year of Publication 2008 Authors Jin, Ling, Shaheen R. Tonse, Daniel S. Cohan, Xianglei Mao, Robert A. Harley, and Nancy J. Brown Journal Environmental Science & Technology Volume 42 Start Page 3683 Issue 10 Pagination 3683-3689 Date Published 05/2008 Abstract We developed a first- and second-order sensitivity analysis approach with the decoupled direct method to examine spatial and temporal variations of ozone-limiting reagents and the importance of local vs upwind emission sources in the San Joaquin Valley of central California for a 5 day ozone episode (Jul 29th to Aug 3rd, 2000). Despite considerable spatial variations, nitrogen oxides (NOx) emission reductions are overall more effective than volatile organic compound (VOC) control for attaining the 8 h ozone standard in this region for this episode, in contrast to the VOC control that works better for attaining the prior 1 h ozone standard. Interbasin source contributions of NOx emissions are limited to the northern part of the SJV, while anthropogenic VOC (AVOC) emissions, especially those emitted at night, influence ozone formation in the SJV further downwind. Among model input parameters studied here, uncertainties in emissions of NOx and AVOC, and the rate coefficient of the OH + NO2 termination reaction, have the greatest effect on first-order ozone responses to changes in NOx emissions. Uncertainties in biogenic VOC emissions only have a modest effect because they are generally not collocated with anthropogenic sources in this region.

191

Determination of total ozone from DMSP multichannel filter radiometer measurements  

Science Conference Proceedings (OSTI)

The multichannel filter radiometer (MFR) infrared sensor was first flown in 1977 on a Defense Meteorological Satellite Program (DMSP) Block 5D series satellite operated by the US Air Force. The first four satellites in this series carried MFR sensors from which total atmospheric column ozone amounts may be derived. The last MFR sensor ceased operating on February 16, 1980. The series of four sensors spans a data period of nearly three years. The MFR sensor measures infrared radiances for 16 channels. Total ozone amounts are determined from sets of radiance measurements using an empirical relationship that is developed using linear regression analysis. Total ozone is modeled as a linear combination of terms involving functions of the MFR radiances for four channels (1, 3, 7 and 16) and the secant of the zenith angle. The ozone retrieval methodology is described schematically. The ozone retrieval model is developed through regression analysis using sets of simulated MFR radiances derived from detailed radiative transfer calculations. The MFR total ozone data are compared with independent ground-based Dobson measurements in order to evaluate the ozone retrieval methodology. Many Dobson observatories have been providing their daily measurements of total ozone which are taken close in time to DMSP overpass times. MFR total ozone data are compared with Dobson measurements taken between January 1 and February 15, 1979, and the results are summarized. Comparisons were made where the MFR and Dobson measurements are within 300 km and 300 minutes of each other. Percentages are computed with respect to the Dobson values. The MFR data were processed using a preliminary methodology, and the data will be reprocessed in the near future.

Luther, F.M.; Weichel, R.L.

1980-09-01T23:59:59.000Z

192

Effect of ozone on growth and assimilate partitioning in parsley  

SciTech Connect

Parsley (Petroselinum crispum (Mill.) Nym. cv. Banquet) incurred leaf injury, reduced growth, and altered assimilate partitioning after exposures to 20 pphm ozone. Total plant dry weight and root dry weight were decreased 23% and 43% respectively, with little effect on leaves. The relative growth rate of fumigated plants was reduced after the initial ozone exposure but leveled off at a steady state above that of the control plants when plant dry weights reached about 4.5 g. Ozone appeared to have its greatest effect on growth during initial exposures. 15 references, 3 figures, 1 table.

Oshima, R.J.; Bennett, J.P.; Braegelmann, P.K.

1978-05-01T23:59:59.000Z

193

Exposure-Relevant Ozone Chemistry in Occupied Spaces  

SciTech Connect

Ozone, an ambient pollutant, is transformed into other airborne pollutants in the indoor environment. In this dissertation, the type and amount of byproducts that result from ozone reactions with common indoor surfaces, surface residues, and vapors were determined, pollutant concentrations were related to occupant exposure, and frameworks were developed to predict byproduct concentrations under various indoor conditions. In Chapter 2, an analysis is presented of secondary organic aerosol formation from the reaction of ozone with gas-phase, terpene-containing consumer products in small chamber experiments under conditions relevant for residential and commercial buildings. The full particle size distribution was continuously monitored, and ultrafine and fine particle concentrations were in the range of 10 to>300 mu g m-3. Particle nucleation and growth dynamics were characterized.Chapter 3 presents an investigation of ozone reactions with aircraft cabin surfaces including carpet, seat fabric, plastics, and laundered and worn clothing fabric. Small chamber experiments were used to determine ozone deposition velocities, ozone reaction probabilities, byproduct emission rates, and byproduct yields for each surface category. The most commonly detected byproducts included C1?C10 saturated aldehydes and skin oil oxidation products. For all materials, emission rates were higher with ozone than without. Experimental results were used to predict byproduct exposure in the cabin and compare to other environments. Byproduct levels are predicted to be similar to ozone levels in the cabin, which have been found to be tens to low hundreds of ppb in the absence of an ozone converter. In Chapter 4, a model is presented that predicts ozone uptake by and byproduct emission from residual chemicals on surfaces. The effects of input parameters (residue surface concentration, ozone concentration, reactivity of the residue and the surface, near-surface airflow conditions, and byproduct yield) were explored. In Chapter 5, the reaction of ozone with permethrin, a residual insecticide used in aircraft cabins, to form phosgene is investigated. A derivatization technique was developed to detect phosgene at low levels, and chamber experiments were conducted with permethrin-coated cabin materials. It was determined that phosgene formation, if it occurs in the aircraft cabin, is not likely to exceed the relevant, health-based phosgene exposure guidelines.

Coleman, Beverly Kaye

2009-04-01T23:59:59.000Z

194

Ozone generation by rock fracture: Earthquake early warning?  

Science Conference Proceedings (OSTI)

We report the production of up to 10 ppm ozone during crushing and grinding of typical terrestrial crust rocks in air, O{sub 2} and CO{sub 2} at atmospheric pressure, but not in helium or nitrogen. Ozone is formed by exoelectrons emitted by high electric fields, resulting from charge separation during fracture. The results suggest that ground level ozone produced by rock fracture, besides its potential health hazard, can be used for early warning in earthquakes and other catastrophes, such as landslides or land shifts in excavation tunnels and underground mines.

Baragiola, Raul A.; Dukes, Catherine A.; Hedges, Dawn [Engineering Physics, University of Virginia, Charlottesville, Virginia 22904 (United States)

2011-11-14T23:59:59.000Z

195

A Study on the Planetary Wave Transport of Ozone during the Late February 1979 Stratospheric Warming Using the SAGE Ozone Observation and Meteorological Information  

Science Conference Proceedings (OSTI)

Ozone data from the Stratospheric Aerosol and Gas Experiment (SAGE) have been used in conjunction with meteorological information to study the ozone transport near 55°N due to planetary waves during the late February 1979 stratospheric warming. ...

Pi-Huan Wang; M. P. McCormick; W. P. Chu

1983-10-01T23:59:59.000Z

196

CARBON-CARBON COMPOSITE ALLCOMP Carbon-Carbon Composite  

E-Print Network (OSTI)

strength 4340 steel, carbon-carbon composite, and Carbon-Silicon Carbide composite were tested to examine-C composite containing continuous PAN T300 fibers · SWB: Chopped Fiber Composite containing SWB fibers Crush

Rollins, Andrew M.

197

Sensitivity of Surface Ozone Simulation to Cumulus Parameterization  

Science Conference Proceedings (OSTI)

Different cumulus schemes cause significant discrepancies in simulated precipitation, cloud cover, and temperature, which in turn lead to remarkable differences in simulated biogenic volatile organic compound (BVOC) emissions and surface ozone ...

Zhining Tao; Allen Williams; Ho-Chun Huang; Michael Caughey; Xin-Zhong Liang

2008-05-01T23:59:59.000Z

198

Indoor Surface Chemistry: Ozone Reaction with Nicotine Sorbed...  

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

Indoor Surface Chemistry: Ozone Reaction with Nicotine Sorbed to Model Materials Speaker(s): Hugo Destaillats Date: May 19, 2005 - 12:00pm Location: Bldg. 90 During this seminar,...

199

Isentropic Cross-Tropopause Ozone Transport in the Northern Hemisphere  

Science Conference Proceedings (OSTI)

This paper investigates isentropic ozone exchange between the extratropical lower stratosphere and the subtropical upper troposphere in the Northern Hemisphere. The quantification method is based on the potential vorticity (PV) mapping of ...

P. Jing; D. M. Cunnold; H. J. Wang; E-S. Yang

2004-05-01T23:59:59.000Z

200

Total Ozone Determination from the Backscattered Ultraviolet (BUV) Experiment  

Science Conference Proceedings (OSTI)

The algorithm used to derive total ozone from the Nimbus 4 Backscattered Ultraviolet (BUV) experiment is described. A seven-year global data set with more than one million retrievals has been produced and archived using this algorithm. The ...

K. F. Klenk; P. K. Bhartia; V. G. Kaveeshwar; R. D. McPeters; P. M. Smith; A. J. Fleig

1982-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Ozone-initiated chemistry in an occupied simulated aircraft cabin  

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

nonanal, decanal, 4-oxopentanal (4-OPA), 6-methyl-5-hepten-2-one (6-MHO), formic acid and acetic acid, with 0.25 to 0.30 moles of quantified product volatilized per mole of ozone...

202

Mesoscale Meteorology and High Ozone in the Northeast United States  

Science Conference Proceedings (OSTI)

This study examines the relationship between mesoscale meteorological conditions and high-ozone days in the northeastern United States. It is proposed that the leeside trough and the sea-breeze front are two mesoscale features that can be ...

Robert S. Gaza

1998-09-01T23:59:59.000Z

203

The Ozone Dilemma: a reference handbook (Contemporary World Issues Series)  

E-Print Network (OSTI)

Dilemma: a reference handbook By David E. Newton Reviewed byDilemma: a reference handbook (Contemporary World IssuesThe Ozone Dilemma: a reference handbook is targeted at both

Li, Haipeng

1997-01-01T23:59:59.000Z

204

An Intercomparison of Ground-Based Total Ozone Instruments  

Science Conference Proceedings (OSTI)

Five ground-based total ozone spectrophotometers were intercompared at Wallops Island, Virginia between October 1979 and January 1981. The tests were conducted to evaluate the stability and accuracy of each instrument over an extended time ...

C. L. Parsons; J. C. Gerlach; M. E. Williams

1982-05-01T23:59:59.000Z

205

Global Health and Economic Impacts of Future Ozone Pollution  

E-Print Network (OSTI)

We assess the human health and economic impacts of projected 2000-2050 changes in ozone pollution using the MIT Emissions Prediction and Policy Analysis-Health Effects (EPPA-HE) model, in combination with results from the ...

Webster, Mort D.

206

Pre-Combustion Carbon Capture Research | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pre-Combustion Carbon Capture Research Pre-Combustion Carbon Capture Research Pre-Combustion Carbon Capture Research Pre-combustion capture refers to removing CO2 from fossil fuels before combustion is completed. For example, in gasification processes a feedstock (such as coal) is partially oxidized in steam and oxygen/air under high temperature and pressure to form synthesis gas. This synthesis gas, or syngas, is a mixture of hydrogen, carbon monoxide, CO2, and smaller amounts of other gaseous components, such as methane. The syngas can then undergo the water-gas shift reaction to convert CO and water (H2O) to H2 and CO2, producing a H2 and CO2-rich gas mixture. The concentration of CO2 in this mixture can range from 15-50%. The CO2 can then be captured and separated, transported, and ultimately sequestered, and the H2-rich fuel combusted.

207

Ozone in the Troposphere and Stratosphere, part 1  

Science Conference Proceedings (OSTI)

This is the first part of a 2-part Conference Publication. This document contains papers presented at the 1992 Quadrennial Ozone Symposium held at the Charlottesville, Virginia, from June 4-13, 1992. The papers cover topics in both Tropospheric and Stratospheric research. These topics include ozone trends and climatology, ground based, aircraft, balloon, rocket and satellite measurements, Arctic and Antarctic research, global and regional modeling, and volcanic effects. Separate abstracts have been prepared for articles from this report.

Hudson, R.D.

1994-04-01T23:59:59.000Z

208

Ozone in the troposphere and stratosphere, part 2  

Science Conference Proceedings (OSTI)

This is the second of a 2-part Conference Publication. This document contains papers presented at the 1992 Quadrennial Ozone Symposium held at Charlottesville, Virginia, from June 4-13, 1992. The papers cover topics in both Tropospheric and Stratospheric research. These topics include ozone trends and climatology, ground based, aircraft, balloon, rocket and satellite measurements, Arctic and Antarctic research, global and regional modeling, and volcanic effects. Separate abstracts have been prepared for articles from this report.

Hudson, R.D.

1994-04-01T23:59:59.000Z

209

Biofouling Control With Ozone at the Bergen Generating Station  

Science Conference Proceedings (OSTI)

Tests were conducted to evaluate the effectiveness of ozone as an alternative to chlorine for condenser biofouling control in a once-through cooling system. A pilot-scale test facility with three model condensors simulated condenser operation and conditions at the Bergen station. Both ozone and chlorine were tested. The minimum effective level of each was determined by daily measurements of heat transfer coefficients across model condenser tubes and/or water-side pressure drop. Final evaluation was based...

1980-11-01T23:59:59.000Z

210

Probabilistic aspects of meteorological and ozone regional ensemble forecasts  

SciTech Connect

This study investigates whether probabilistic ozone forecasts from an ensemble can be made with skill; i.e., high verification resolution and reliability. Twenty-eight ozone forecasts were generated over the Lower Fraser Valley, British Columbia, Canada, for the 5-day period 11-15 August 2004, and compared with 1-hour averaged measurements of ozone concentrations at five stations. The forecasts were obtained by driving the CMAQ model with four meteorological forecasts and seven emission scenarios: a control run, {+-} 50% NO{sub x}, {+-} 50% VOC, and {+-} 50% NO{sub x} combined with VOC. Probabilistic forecast quality is verified using relative operating characteristic curves, Talagrand diagrams, and a new reliability index. Results show that both meteorology and emission perturbations are needed to have a skillful probabilistic forecast system--the meteorology perturbation is important to capture the ozone temporal and spatial distribution, and the emission perturbation is needed to span the range of ozone-concentration magnitudes. Emission perturbations are more important than meteorology perturbations for capturing the likelihood of high ozone concentrations. Perturbations involving NO{sub x} resulted in a more skillful probabilistic forecast for the episode analyzed, and therefore the 50% perturbation values appears to span much of the emission uncertainty for this case. All of the ensembles analyzed show a high ozone concentration bias in the Talagrand diagrams, even when the biases from the unperturbed emissions forecasts are removed from all ensemble members. This result indicates nonlinearity in the ensemble, which arises from both ozone chemistry and its interaction with input from particular meteorological models.

Monache, L D; Hacker, J; Zhou, Y; Deng, X; Stull, R

2006-03-20T23:59:59.000Z

211

Interannual Variability of the Antarctic Ozone Hole in a GCM. Part I: The Influence of Tropospheric Wave Variability  

Science Conference Proceedings (OSTI)

To study the interannual variability of the Antarctic ozone hole, a physically realistic parameterization of the chemistry responsible for severe polar ozone loss has been included in the GISS GCM. The ensuing ozone hole agrees well with ...

Drew T. Shindell; Sun Wong; David Rind

1997-09-01T23:59:59.000Z

212

Delayed Southern Hemisphere climate change induced by stratospheric ozone recovery, as projected by the CMIP5 models  

Science Conference Proceedings (OSTI)

Stratospheric ozone is expected to recover by the end of this century due to the regulation of ozone depleting substances by the Montreal Protocol. Targeted modeling studies have suggested that the climate response to ozone recovery will greatly ...

Elizabeth A. Barnes; Nicholas W. Barnes; Lorenzo M. Polvani

213

CARBON TETRACHLORIDE  

E-Print Network (OSTI)

This fact sheet answers the most frequently asked health questions (FAQs) about carbon tetrachloride.

unknown authors

2005-01-01T23:59:59.000Z

214

NETL: Carbon Storage  

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

Carbon Sequestration Partnerships Regional Carbon Sequestration Partnership (RCSP) Programmatic Points of Contact Carbon Storage Program Infrastructure Coordinator Carbon Storage...

215

Biomass burning and the production of greenhouse gases, in Climate Biosphere Interaction: Biogenic Emissions and the Environmental Effects of Climate Change, edited by  

E-Print Network (OSTI)

Biomass burning is a source of greenhouse gases, carbon dioxide, methane, and nitrous oxide. In addition, biomass burning is a source of chemically active gases, including carbon monoxide, nonmethane hydrocarbons, and nitric oxide. These gases, along with methane, lead to the chemical production of tropospheric ozone (another greenhouse gas) as well as control the concentration of the

Joel S. Levine

1994-01-01T23:59:59.000Z

216

REDUCTION OF NITRIC OXIDE BY CARBON MONOXIDE OVER A SILICA SUPPORTED PLATINUM CATALYST: INFRARED AND KINETIC STUDIES  

E-Print Network (OSTI)

System. • B. Procedures. Catalyst Preparation Infrared DiskPreparation. Catalyst Characterization. PreliminaryReduction by CO Over a Pt Catalyst," M.S. thesis, Department

Lorimer, D.H.

2011-01-01T23:59:59.000Z

217

SYNTHESIS OF OXYGENATED PRODUCTS FROM CARBON MONOXIDE AND HYDROGEN OVER SILICA- AND ALUMINA-SUPPORTED RUTHENIUM CATALYSTS  

E-Print Network (OSTI)

Formation Over a 1.01; Ru/A1 o Catalyst at 498K H/CO P (atm)a silica-supported Ru catalyst Fig. 2 Effect of feed flowan alumina-supported Ru catalyst Fig. 3 Effect of reaction

Kellner, C.Stephen

2013-01-01T23:59:59.000Z

218

Seasonal variation of carbon monoxide in northern Japan: Fourier transform IR measurements and source-labeled model calculations  

E-Print Network (OSTI)

the Siberian high and Aleutian low dominated over northernthe Siberian high and Aleutian low resulted in higher

2006-01-01T23:59:59.000Z

219

The effect of carbon monoxide on the colour stability and quality of yellowfin tuna (Thunnus Albacares) muscle.  

E-Print Network (OSTI)

??ENGLISH ABSTRACT: Processors face the problem of extending the shelf-life of yellowfin tuna, while still maintaining the desirable bright red colour. Methods which have commonly… (more)

Neethling, Nikki E.

2013-01-01T23:59:59.000Z

220

Program on Technology Innovation: Monitoring Carbon Monoxide and Nitric Oxide in Combustion Gases with Laser Absorption Sensors  

Science Conference Proceedings (OSTI)

Two important considerations for monitoring CO/O2 and NO/NH3 in the flue gas of coal-fired boilers include (1) optimization of the air/fuel distribution to individual burners, thereby enabling lower excess oxygen operation, reduced NOx emissions, and improved unit heat rate, and (2) optimization of NH3/NOx distribution at the inlet of a selective catalytic reduction (SCR) reactor, thereby enabling increased NOx reduction performance while maintaining ammonia slip targets. Lower NOx emissions can be achie...

2011-04-12T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Seasonal variation of carbon monoxide in northern Japan: Fourier transform IR measurements and source-labeled model calculations  

E-Print Network (OSTI)

emissions in this study. Fossil fuel and biofuel emissionsdirect emissions by 20% (fossil fuel) and 10% (biofuel andNMVOC) emissions from fossil fuels [Piccot et al. , 1992

2006-01-01T23:59:59.000Z

222

SYNTHESIS OF OXYGENATED PRODUCTS FROM CARBON MONOXIDE AND HYDROGEN OVER SILICA- AND ALUMINA-SUPPORTED RUTHENIUM CATALYSTS  

E-Print Network (OSTI)

is consistent with the projection discussed above. Theis consistent with the projection given recently by Wilson (

Kellner, C.Stephen

2013-01-01T23:59:59.000Z

223

SYNTHESIS OF OXYGENATED PRODUCTS FROM CARBON MONOXIDE AND HYDROGEN OVER SILICA- AND ALUMINA-SUPPORTED RUTHENIUM CATALYSTS  

E-Print Network (OSTI)

R. B. , "The Fischer-Tropsch and Related Syntheses", Wiley,with hydrocarbons during Fischer-Tropsch synthesis over iron

Kellner, C.Stephen

2013-01-01T23:59:59.000Z

224

Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol  

DOE Patents (OSTI)

A process for the production of a pollutant-free particulate carbon (i.e., a substantially ash-, sulfur- and nitrogen-free carbon) from carbonaceous feedstocks. The basic process involves de-oxygenating one of the gas streams formed in a cyclic hydropyrolysis-methane pyrolysis process in order to improve conversion of the initial carbonaceous feedstock. De-oxygenation is effected by catalytically converting carbon monoxide, carbon dioxide, and hydrogen contained in one of the pyrolysis gas streams, preferably the latter, to a methanol co-product. There are thus produced two products whose use is known per se, viz., a substantially pollutant-free particulate carbon black and methanol. These products may be admixed in the form of a liquid slurry of carbon black in methanol.

Steinberg, Meyer (Melville, NY); Grohse, Edward W. (Port Jefferson, NY)

1995-01-01T23:59:59.000Z

225

Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol  

DOE Patents (OSTI)

A process is described for the production of a pollutant-free particulate carbon (i.e., a substantially ash-, sulfur- and nitrogen-free carbon) from carbonaceous feedstocks. The basic process involves de-oxygenating one of the gas streams formed in a cyclic hydropyrolysis-methane pyrolysis process in order to improve conversion of the initial carbonaceous feedstock. De-oxygenation is effected by catalytically converting carbon monoxide, carbon dioxide, and hydrogen contained in one of the pyrolysis gas streams, preferably the latter, to a methanol co-product. There are thus produced two products whose use is known per se, viz., a substantially pollutant-free particulate carbon black and methanol. These products may be admixed in the form of a liquid slurry of carbon black in methanol. 3 figs.

Steinberg, M.; Grohse, E.W.

1995-06-27T23:59:59.000Z

226

Longitude-Dependent Decadal Changes of Total Ozone in Boreal Winter Months during 1979–92  

Science Conference Proceedings (OSTI)

A statistical analysis shows that the decadal change of zonally asymmetric total ozone (Total Ozone Mapping Spectrometer data) has a distinct spatial similarity with the decadal change of the 300-hPa geopotential patterns during December–February ...

Dieter Peters; Günter Entzian

1999-04-01T23:59:59.000Z

227

A Process-Analysis Based Study of the Ozone Weekend Effect  

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

A Process-Analysis Based Study of the Ozone Weekend Effect Title A Process-Analysis Based Study of the Ozone Weekend Effect Publication Type Journal Article Year of Publication...

228

Predicting Total Ozone Based on GTS Data: Applications for South American High-Latitude Populations  

Science Conference Proceedings (OSTI)

A regular occurrence during the 1990s has been the excursion of the edge of the springtime Antarctic ozone hole over the southernmost region of the South American continent. Given the essential role of atmospheric ozone in absorbing incoming ...

Anna E. Jones; Tanya Bowden; John Turner

1998-05-01T23:59:59.000Z

229

Stratospheric Temperature and Radiative Forcing Response to 11-Year Solar Cycle Changes in Irradiance and Ozone  

Science Conference Proceedings (OSTI)

The 11-yr solar cycle temperature response to spectrally resolved solar irradiance changes and associated ozone changes is calculated using a fixed dynamical heating (FDH) model. Imposed ozone changes are from satellite observations, in contrast ...

L. J. Gray; S. T. Rumbold; K. P. Shine

2009-08-01T23:59:59.000Z

230

On the Role of Ozone in the Stability of Rossby Normal Modes  

Science Conference Proceedings (OSTI)

The role of ozone in the linear stability of Rossby normal modes is examined in a continuously stratified, extratropical baroclinic atmosphere. The flow is described by coupled equations for the quasi-geostrophic potential vorticity and ozone ...

Terrence R. Nathan

1989-07-01T23:59:59.000Z

231

Comparison of three vertically resolved ozone data sets: climatology, trends and radiative forcings  

E-Print Network (OSTI)

Climate models that do not simulate changes in stratospheric ozone concentrations require the prescription of ozone fields to accurately calculate UV fluxes and stratospheric heating rates. In this study, three different ...

Hassler, B.

232

Association of the Laminated Vertical Ozone Structure with the Lower-Stratospheric Circulation  

Science Conference Proceedings (OSTI)

In this study the examination of the role of the atmospheric circulation in the lower stratosphere in relation to the laminated structure of ozone in the subtropical atmosphere is attempted. This analysis is based on the vertical ozone profile ...

C. Varotsos; P. Kalabokas; G. Chronopoulos

1994-04-01T23:59:59.000Z

233

Total Ozone Variations 1970-74 Using Backscattered Ultraviolet (BUV) and Ground-Based Observations  

Science Conference Proceedings (OSTI)

The most long-lived satellite set of ozone observations, to date, is that derived from the Backscatter Ultraviolet (BUV) ozone sensor on Nimbus 4 and extends from April 1970 through 1976. Unfortunately, this experiment suffered spacecraft power ...

A. J. Miller; R. M. Nagatani; T. G. Rogers; A. J. Fleig; D. F. Heath

1982-05-01T23:59:59.000Z

234

Wintertime Ozone Fluxes and Profiles above a Subalpine Spruce–Fir Forest  

Science Conference Proceedings (OSTI)

High rural concentrations of ozone (O3) are thought to be stratospheric in origin, advected from upwind urban sources, or photochemically generated locally by natural trace gas emissions. Ozone is known to be transported vertically downward from ...

Karl Zeller

2000-01-01T23:59:59.000Z

235

Impact of Surfaces on Ozone-Terpene Conversion Rates in Buildings  

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

Impact of Surfaces on Ozone-Terpene Conversion Rates in Buildings Speaker(s): Glenn Morrison Date: March 5, 2007 - 4:00pm Location: 90-3122 Indoor surface reactions of ozone with...

236

Transport, Radiative, and Dynamical Effects of the Antarctic Ozone Hole: A GFDL “SKYHI” Model Experiment  

Science Conference Proceedings (OSTI)

The GFDL “SKYHI” general circulation model has been used to simulate the effect of the Antarctic “ozone hole” phenomenon on the radiative and dynamical environment of the lower stratosphere. Both the polar ozone destruction and photochemical ...

J. D. Mahlman; L. J. Umscheid; J. P. Pinto

1994-02-01T23:59:59.000Z

237

Climate Change and the Middle Atmosphere. Part IV: Ozone Response to Doubled CO2  

Science Conference Proceedings (OSTI)

Parameterized stratospheric ozone photochemistry has been included in the Goddard Institute for Space Studies (GISS) GCM to investigate the coupling between chemistry and climate change for the doubled CO2 climate. The chemical ozone response is ...

Drew T. Shindell; David Rind; Patrick Lonergan

1998-05-01T23:59:59.000Z

238

Global Ozone Observations from the UARS MLS: An Overview of Zonal-Mean Results  

Science Conference Proceedings (OSTI)

Global ozone observations from the Microwave Limb Sounder (MLS) aboard the Upper Atmosphere Research Satellite (UARS) are presented, in both vertically resolved and column abundance formats. The authors review the zonal-mean ozone variations ...

Lucien Froidevaux; Joe W. Waters; William G. Read; Lee S. Elson; Dennis A. Flower; Robert F. Jarnot

1994-10-01T23:59:59.000Z

239

Isolation of the Ozone QBO in SAGE II Data by Singular-Value Decomposition  

Science Conference Proceedings (OSTI)

Detailed structure of the global quasi-biennial oscillation (QBO) in ozone is analyzed using Stratospheric Aerosol and Gas Experiment II ozone and nitrogen dioxide data. Emphasis is placed on the midlatitude QBO, in particular its vertical ...

William J. Randel; Fei Wu

1996-09-01T23:59:59.000Z

240

IMPROVING ANTARCTIC TOTAL OZONE PROJECTIONS BY A PROCESS-ORIENTED MULTIPLE DIAGNOSTIC ENSEMBLE REGRESSION  

Science Conference Proceedings (OSTI)

Accurate projections of stratospheric ozone are required, because ozone changes impact on exposures to ultraviolet radiation and on tropospheric climate. Unweighted multi-model ensemble mean (uMMM) projections from chemistry-climate models (CCMs) ...

Alexey Yu. Karpechko; Douglas Maraun; Veronika Eyring

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

The Role of Vertical Mixing in the Temporal Evolution of Ground-Level Ozone Concentrations  

Science Conference Proceedings (OSTI)

Aircraft measurements taken during the North American Research Strategy for Tropospheric Ozone-Northeast field study reveal the presence of ozone concentration levels in excess of 80 ppb on a regional scale in the nocturnal residual layer during ...

Jian Zhang; S. Trivikrama Rao

1999-12-01T23:59:59.000Z

242

Interannual Variations of Total Ozone at Northern Midlatitudes Correlated with Stratospheric EP Flux and Potential Vorticity  

Science Conference Proceedings (OSTI)

At northern midlatitudes over the 1979–2002 time period, column ozone trends are observed to have maximum negative amplitudes in February and March. Here, the portion of the observed ozone interannual variability and trends during these months ...

L. L. Hood; B. E. Soukharev

2005-10-01T23:59:59.000Z

243

Reconstruction and Simulation of Stratospheric Ozone Distributions during the 2002 Austral Winter  

Science Conference Proceedings (OSTI)

Satellite-based solar occultation measurements during the 2002 austral winter have been used to reconstruct global, three-dimensional ozone distributions. The reconstruction method uses correlations between potential vorticity and ozone to derive ...

C. E. Randall; G. L. Manney; D. R. Allen; R. M. Bevilacqua; J. Hornstein; C. Trepte; W. Lahoz; J. Ajtic; G. Bodeker

2005-03-01T23:59:59.000Z

244

Ozone reduces crop yields and alters competition with weeds such as yellow nutsedge  

E-Print Network (OSTI)

DT (eds. ). Assessment of Crop Loss from Air Pollutants:Ambient ozone and adverse crop re- sponse: An evaluation ofthe effects of ozone on crops and trees. In: Lefohn AS (

Grantz, David A.; Shrestha, Anil

2005-01-01T23:59:59.000Z

245

Tobacco smoke aging in the presence of ozone: a room-sized chamber...  

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

Tobacco smoke aging in the presence of ozone: a room-sized chamber study Title Tobacco smoke aging in the presence of ozone: a room-sized chamber study Publication Type Journal...

246

Bayesian Modelling Volatility of Growth Rate in Atmospheric Carbon Dioxide Concentrations  

Science Conference Proceedings (OSTI)

Atmospheric gases, such as carbon dioxide, ozone, methane, nitrous oxide, and etc., create a natural greenhouse effect and cause climate change. Therefore, modelling behavior of these gases could help policy makers to control greenhouse effects. In a ... Keywords: Stochastic volatility, Smooth transition autoregressive, Markov chain Monte Carlo, methods, Bayesian, ARCH, GARCH

Esmail Amiri

2009-12-01T23:59:59.000Z

247

Demonstration of an Ozone System at a Hospital Laundry Facility: Long Beach Medical Center  

Science Conference Proceedings (OSTI)

In its role as a powerful oxidant and biocide, ozone works in the context of laundry facilities to boost the cleaning activity of the various chemicals and chemical compounds. To be used in laundry operations, ozone must be introduced into the wash water via one of the ozone laundry systems available on the market today. This report highlights and quantifies the benefits of an ozone laundry system at the 134-bed Long Beach Medical Center (LBMC) in Long Beach, New York.

2007-08-31T23:59:59.000Z

248

The Use of Ozone as an Antimicrobial Agent: Agricultural and Food Processing Technical Assessment  

Science Conference Proceedings (OSTI)

Ozone treatment, a highly effective disinfectant long used in Europe, deactivates even the most stubborn organisms. Food processors can use ozone to disinfect raw fruits and vegetables during processing or to disinfect water used for washing foods and food plant equipment. Food researchers and regulators have confirmed ozone as safe. In 1997, EPRI convened an expert panel that submitted a Generally Recognized as Safe (GRAS) affirmation of ozone in food applications to the U.S. Food and Drug Administratio...

2001-11-08T23:59:59.000Z

249

Development of an ozone climatology for Harris County, Texas  

SciTech Connect

The Houston Regional Monitoring Corporation (HRM) has performed continuous ambient air quality and meteorological monitoring in the Ship Channel area of east Harris County since August 1981. The HRM monitoring network is one of the largest Environmental Protection Agency (EPA) approved Prevention of Significant Deterioration (PSD) monitoring network in the United States operated by an industrial group. As an adjunct to its monitoring. HRM has funded extensive meteorological and statistical analyses of ozone monitoring data in Harris County. One of the goals of these studies was to determine those meteorological conditions responsible for the formation of elevated ozone concentrations in Harris County. The analyses performed included the use of principal component analysis and cluster analysis. These analysis techniques have individually been applied to ozone and air quality research problems. The combined use of these techniques in this analysis, however, is a unique application of these statistical tools to an ozone air quality analysis. As a result of these analyses, a climatology of those episodes conducive to elevated ozone formation in Harris County was developed.

Balentine, H.W.; Carter, J.C. (Radian Corp., Austin, TX (USA)); Preston, J. (Tenneco Polymers, Houston, TX (US))

1987-01-01T23:59:59.000Z

250

Operations Evaluation Report -- Pressurized Ozonation System, North Mississippi Medical Center Laundry Operations  

Science Conference Proceedings (OSTI)

This report describes ozone and its benefits in healthcare laundry operations. In particular, case studies of two ozone applications -- one in a 650-bed regional medical center and another in a 131-bed skilled nursing and rehabilitation facility -- highlight and quantify ozone's benefits.

2005-03-22T23:59:59.000Z

251

A Semi-Empirical Two Step Carbon Corrosion Reaction Model in PEM Fuel Cells  

SciTech Connect

The cathode CL of a polymer electrolyte membrane fuel cell (PEMFC) was exposed to high potentials, 1.0 to 1.4 V versus a reversible hydrogen electrode (RHE), that are typically encountered during start up/shut down operation. While both platinum dissolution and carbon corrosion occurred, the carbon corrosion effects were isolated and modeled. The presented model separates the carbon corrosion process into two reaction steps; (1) oxidation of the carbon surface to carbon-oxygen groups, and (2) further corrosion of the oxidized surface to carbon dioxide/monoxide. To oxidize and corrode the cathode catalyst carbon support, the CL was subjected to an accelerated stress test cycled the potential from 0.6 VRHE to an upper potential limit (UPL) ranging from 0.9 to 1.4 VRHE at varying dwell times. The reaction rate constants and specific capacitances of carbon and platinum were fitted by evaluating the double layer capacitance (Cdl) trends. Carbon surface oxidation increased the Cdl due to increased specific capacitance for carbon surfaces with carbon-oxygen groups, while the second corrosion reaction decreased the Cdl due to loss of the overall carbon surface area. The first oxidation step differed between carbon types, while both reaction rate constants were found to have a dependency on UPL, temperature, and gas relative humidity.

Young, Alan; Colbow, Vesna; Harvey, David; Rogers, Erin; Wessel, Silvia

2013-01-01T23:59:59.000Z

252

Secondary pollutants from ozone reactions with ventilation filters and  

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

Secondary pollutants from ozone reactions with ventilation filters and Secondary pollutants from ozone reactions with ventilation filters and degradation of filter media additives Title Secondary pollutants from ozone reactions with ventilation filters and degradation of filter media additives Publication Type Journal Article Year of Publication 2011 Authors Destaillats, Hugo, Wenhao Chen, Michael G. Apte, Nuan Li, Michael Spears, Jérémie Almosni, Gregory Brunner, Jianshun(Jensen) Zhang, and William J. Fisk Journal Atmospheric Environment Volume 45 Start Page 3561 Issue 21 Pagination 3561-3568 Keywords commercial building ventilation & indoor environmental quality group, commercial building ventilation and indoor environmental quality group, energy analysis and environmental impacts department, indoor environment department, indoor environment group

253

Investigation of formaldehyde and acetaldehyde sampling rate and ozone  

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

Investigation of formaldehyde and acetaldehyde sampling rate and ozone Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers Title Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers Publication Type Journal Article Year of Publication 2013 Authors Mullen, Nasim A., Marion L. Russell, Melissa M. Lunden, and Brett C. Singer Journal Atmospheric Environment Volume 80 Pagination 184-189 Date Published 12/2013 Keywords aldehyde; exposure; indoor air quality; passive sampler; residential Abstract This study investigated formaldehyde and acetaldehyde passive sampling rates and ozone interference for the DNPH-based Waters Sep-Pak XPoSure sampler. Previous studies have shown that ozone interferes with active sampling by this cartridge. Our study included one laboratory and six field experiments conducted in Northern California homes. Passive sampling rates of 1.10 ± 0.09 and 0.86 ± 0.10 mL/min determined for formaldehyde and acetaldehyde are lower than previously reported. In a controlled laboratory experiment there were small, statistically insignificant impacts of subsequent ozone exposure on formaldehyde and acetaldehyde mass passively collected on the samplers. This sampler is inexpensive, easy to deploy and to transport by mail, and has a high sampling capacity when used passively; it is suitable for a wide-range of monitoring applications. However, the passive sampling rate remains in question given the internally consistent, but different results obtained in our study and the previous study.

254

Ozone removal capability of a welding fume respirator containing activated charcoal  

SciTech Connect

Development of air purifying respirators for protection against ozone has been slowed by concerns about oxidation of charcoal and other available sorbents. The suitability of a charcoal sorbent for low concentrations of ozone was evaluated as a part of the development of a half-mask air purifying respirator designed for welding fumes and ozone. Testing of the respirator confirmed that charcoal can be a suitable sorbent for low levels of ozone. Where the respirator is properly selected, fit tested, and worn, respirator use against welding fumes and ozone at concentrations not exceeding 10 times the permissible exposure limit had been recommended.

Johnston, A.R.; Dyrud, J.F.; Shih, Y.T. (Occupational Health and Environmental Safety Division, St. Paul, MN (USA))

1989-09-01T23:59:59.000Z

255

Carbon Cycle  

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

Carbon Cycle Carbon Cycle Latest Global Carbon Budget Estimates Including CDIAC Estimates Terrestrial Carbon Management Data Sets and Analyses Carbon Dioxide Emissions from Fossil-Fuel Consumption and Cement Manufacture, (2011) Annual Fossil-Fuel CO2 Emissions: Mass of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) Monthly Fossil-Fuel CO2 Emissions: Mass of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) Annual Fossil-Fuel CO2 Emissions: Global Stable Carbon Isotopic Signature (2012) Monthly Fossil-Fuel CO2 Emissions: Isomass (δ 13C) of Emissions Gridded by One Degree Latitude by One Degree Longitude (2012) AmeriFlux - Terrestrial Carbon Dioxide, Water Vapor, and Energy Balance Measurements Estimates of Monthly CO2 Emissions and Associated 13C/12C Values

256

Carbon Isotopes  

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

Atmospheric Trace Gases » Carbon Isotopes Atmospheric Trace Gases » Carbon Isotopes Carbon Isotopes Gateway Pages to Isotopes Data Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon Dioxide and Carbon-13 in Methane 800,000 Deuterium Record and Shorter Records of Various Isotopic Species from Ice Cores Carbon-13 13C in CO Measurements from Niwot Ridge, Colorado and Montana de Oro, California (Tyler) 13C in CO2 NOAA/CMDL Flask Network (White and Vaughn) CSIRO GASLAB Flask Network (Allison, Francey, and Krummel) CSIRO in situ measurements at Cape Grim, Tasmania (Francey and Allison) Scripps Institution of Oceanography (Keeling et al.) 13C in CH4 NOAA/CMDL Flask Network (Miller and White) Northern & Southern Hemisphere Sites (Quay and Stutsman) Northern & Southern Hemisphere Sites (Stevens)

257

NATURAL GAS VARIABILITY IN CALIFORNIA: ENVIRONMENTAL IMPACTS AND DEVICE PERFORMANCE EXPERIMENTAL EVALUATION OF POLLUTANT EMISSIONS FROM RESIDENTIAL APPLIANCES  

E-Print Network (OSTI)

factors for carbon monoxide, nitrogen oxides,  nitrogen dioxide, factors were determined for carbon monoxide, nitrogen oxides, nitrogen dioxide, 

Singer, Brett C.

2010-01-01T23:59:59.000Z

258

Meteorology-induced variations in the spatial behavior of summer ozone pollution in Central California  

SciTech Connect

Cluster analysis was applied to daily 8 h ozone maxima modeled for a summer season to characterize meteorology-induced variations in the spatial distribution of ozone. Principal component analysis is employed to form a reduced dimension set to describe and interpret ozone spatial patterns. The first three principal components (PCs) capture {approx}85% of total variance, with PC1 describing a general spatial trend, and PC2 and PC3 each describing a spatial contrast. Six clusters were identified for California's San Joaquin Valley (SJV) with two low, three moderate, and one high-ozone cluster. The moderate ozone clusters are distinguished by elevated ozone levels in different parts of the valley: northern, western, and eastern, respectively. The SJV ozone clusters have stronger coupling with the San Francisco Bay area (SFB) than with the Sacramento Valley (SV). Variations in ozone spatial distributions induced by anthropogenic emission changes are small relative to the overall variations in ozone amomalies observed for the whole summer. Ozone regimes identified here are mostly determined by the direct and indirect meteorological effects. Existing measurement sites are sufficiently representative to capture ozone spatial patterns in the SFB and SV, but the western side of the SJV is under-sampled.

Jin, Ling; Harley, Robert A.; Brown, Nancy J.

2010-06-23T23:59:59.000Z

259

Integration of carbonate fuel cells with advanced coal gasification systems  

DOE Green Energy (OSTI)

Carbonate fuel cells have attributes which make them ideally suited to operate on coal-derived fuel gas; they can convert the methane, hydrogen, and carbon monoxide present in coal derived fuel gas directly to electricity, are not subject to thermodynamic cycle limits as are heat engines, and operate at temperatures compatible with coal gasifiers. Some new opportunities for improved efficiency have been identified in integrated coal gasification/carbonate fuel cells which take advantage of low temperature catalytic coal gasification producing a methane-rich fuel gas, and the internal methane reforming capabilities of Energy Research Corporation's carbonate fuel cells. By selecting the appropriate operating conditions and catalyst in the gasifier, methane formation is maximized to improve gasification efficiency and to take advantage of the heat management aspects of the internal reforming carbonate fuel cell. These advanced integrated gasification/carbonate fuel cell systems are projected to have better efficiencies than gasification/carbonate fuel cell systems employing conventional gasification, and also competing non-fuel cell systems. These improved efficiencies would be accompanied by a corresponding reduction in impact on the environment as well.

Steinfeld, G. (Energy Research Corp., Danbury, CT (United States)); Meyers, S.J. (Fluor Daniel, Inc., Irvine, CA (United States)); Hauserman, W.B. (North Dakota Univ., Grand Forks, ND (United States). Energy and Environmental Research Center)

1992-01-01T23:59:59.000Z

260

Integration of carbonate fuel cells with advanced coal gasification systems  

DOE Green Energy (OSTI)

Carbonate fuel cells have attributes which make them ideally suited to operate on coal-derived fuel gas; they can convert the methane, hydrogen, and carbon monoxide present in coal derived fuel gas directly to electricity, are not subject to thermodynamic cycle limits as are heat engines, and operate at temperatures compatible with coal gasifiers. Some new opportunities for improved efficiency have been identified in integrated coal gasification/carbonate fuel cells which take advantage of low temperature catalytic coal gasification producing a methane-rich fuel gas, and the internal methane reforming capabilities of Energy Research Corporation`s carbonate fuel cells. By selecting the appropriate operating conditions and catalyst in the gasifier, methane formation is maximized to improve gasification efficiency and to take advantage of the heat management aspects of the internal reforming carbonate fuel cell. These advanced integrated gasification/carbonate fuel cell systems are projected to have better efficiencies than gasification/carbonate fuel cell systems employing conventional gasification, and also competing non-fuel cell systems. These improved efficiencies would be accompanied by a corresponding reduction in impact on the environment as well.

Steinfeld, G. [Energy Research Corp., Danbury, CT (United States); Meyers, S.J. [Fluor Daniel, Inc., Irvine, CA (United States); Hauserman, W.B. [North Dakota Univ., Grand Forks, ND (United States). Energy and Environmental Research Center

1992-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

An Analysis of the Power Spectra of Total Ozone Data  

Science Conference Proceedings (OSTI)

An analysis is made of the power spectrum of total ozone data using the window closing procedure of Jenkins and Watts (1968). It is concluded that it is presently difficult to distinguish statistically between true periodicities in the data and a ...

Paul V. Rigterink

1981-04-01T23:59:59.000Z

262

On the Relation between Atmospheric Ozone and Sunspot Number  

Science Conference Proceedings (OSTI)

Based on data from the Dobson network, between 1960 and 1987 there has been a zero-lag correlation of 0.48 between the 112 unsmoothed seasonal values of sunspot number and global total ozone, significant at the 1% level taking into account the ...

J. K. Angell

1989-11-01T23:59:59.000Z

263

Ozone Destruction in Continental Stratus Clouds: An Aircraft Case Study  

Science Conference Proceedings (OSTI)

Apparent depletion of ozone in a cold (0°C), continental stratus cloud system was observed during in situ data collection on 30 April 1994 at the Department of Energy Clouds and Radiation Test Bed site in northern Oklahoma. Analyses of the ...

Zhien Wang; Kenneth Sassen

2000-06-01T23:59:59.000Z

264

Photochemical Modeling of Two 1984 SCCCAMP Ozone Episodes  

Science Conference Proceedings (OSTI)

Data collected during the 1984 SCCCAMP Exploratory Study were used to develop two multiple-day ozone modeling episodes for the Urban Airshed Model (UAM). An operational model performance evaluation was performed for the 5–7 and 16–17 September ...

T. W. Tesche; Dennis E. McNally

1991-05-01T23:59:59.000Z

265

Lake Michigan Membrane/Ozone Research and Demonstration Study  

Science Conference Proceedings (OSTI)

Drinking water standards in the United States have become increasingly stringent. The recently-promulgated Enhanced Surface Water Treatment Rule (ESWTR) requires controlling for Cryptosporidium, a pathogen that is resistant to chlorine. This report evaluates the effectiveness of membrane and ozone technologies for reducing Cryptosporidium risks.

1999-12-30T23:59:59.000Z

266

Ozone injury to tobacco plants in South Dakota  

SciTech Connect

Ozone injury symptoms appeared on tobacco (Nicotiana tabacum) Turkish in the greenhouse and on Wisconsin 38 in field plots at Brookings, South Dakota in 1970. In 1971, ozone injury appeared on greenhouse and field-grown plants of Bel-W3, Bel-C, and Turkish. Ozone fleck was most severe in southeast and east-central South Dakota. A decreasing amount of injury was observed in northeast, central, west-central and southwest South Dakota. Bel-W3 showed injury at eight locations while Turkish, Bel-C and Bel-B were injured only in the eastern parts of the State. Bel-W3 was a reliable monitor of air pollution episodes when plants were continuously produced and observed in the greenhouse at Brookings. New injury appeared on newly matured leaves and older leaves as dark gray to black flecks that turned brown to tan to white with age. Periodic ozone occurrences were recorded by new flecks appearing generally on tissue of younger age. Plant indicators for the pollutants peroxyacetyl-nitrate, fluoride and sulfur dioxide showed no injury in South Dakota. 21 references, 4 figures, 1 table.

Gardner, W.S.

1973-02-01T23:59:59.000Z

267

Ozone effects on inhibitors of human neutrophil proteinases  

SciTech Connect

The effects of ozone on human alpha 1-proteinase inhibitor (A-1-PI), alpha 1-antichymotrypsin (A-1-Achy), bronchial leukocyte proteinase inhibitor (BLPI), and Eglin C were studied using in vitro exposures in phosphate-buffered solutions. Following ozone exposure, inhibitory activities against human neutrophil elastase (HNE) and/or cathepsin G (Cat G) were measured. Exposure of A-1-PI to 50 mol O3/mol protein resulted in a complete loss of HNE inhibitory activity, whereas A-1-Achy lost only 50% of its Cat G inhibitory activity and remained half active even after exposure to 250 mol of O3. At 40 mol O3/mol protein, BLPI lost 79% of its activity against HNE and 87% of its Cat G inhibitory activity. Eglin C, a leech-derived inhibitor, lost 81% of its HNE inhibitory activity and 92% of its ability to inhibit Cat G when exposed to 40 mol O3/mol. Amino acid analyses of ozone-exposed inhibitors showed destruction of Trp, Met, Tyr, and His with as little as 10 mol O3/mol protein, and higher levels of O3 resulted in more extensive oxidation of susceptible residues. The variable ozone susceptibility of the different amino acid residues in the four proteins indicated that oxidation was a function of protein structure, as well as the inherent susceptibility of particular amino acids. Exposure of A-1-PI and BLPI in the presence of the antioxidants, Trolox C (water soluble vitamin E) and ascorbic acid (vitamin C), showed that antioxidant vitamins may protect proteins from oxidative inactivation by ozone. Methionine-specific modification of BLPI reduced its HNE and Cat G inhibitory activities. Two moles of N-chlorosuccinimide per mole of BLPI methionine caused an 80% reduction in activity against Cat G, but only a 40% reduction in HNE inhibitory activity.

Smith, C.E.; Stack, M.S.; Johnson, D.A.

1987-02-15T23:59:59.000Z

268

Carbon Nanotubes  

Science Conference Proceedings (OSTI)

Carbon Nanotubes. Sponsored by: TMS Electronic, Magnetic and Photonic Materials Division Date and Time: Sunday, February 13, 2005 ~ 8:30 am-5:00 pm

269

Carbon Nanomaterials  

Science Conference Proceedings (OSTI)

Mar 12, 2012 ... The graphene film was spin-coated using carbon nanotubes to form the cathode of the field emission device. A phosphor coated graphene-PET ...

270

NETL: Carbon Storage - Carbon Sequestration Leadership Forum  

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

CSLF Carbon Storage Carbon Sequestration Leadership Forum CSLF Logo The Carbon Sequestration Leadership Forum (CSLF) is a voluntary climate initiative of industrially developed and...

271

Observed and WRF-Simulated Low-Level Winds in a High-Ozone Episode during the Central California Ozone Study  

Science Conference Proceedings (OSTI)

A case study is carried out for the 29 July–3 August 2000 episode of the Central California Ozone Study (CCOS), a typical summertime high-ozone event in the Central Valley of California. The focus of the study is on the low-level winds that ...

J-W. Bao; S. A. Michelson; P. O. G. Persson; I. V. Djalalova; J. M. Wilczak

2008-09-01T23:59:59.000Z

272

Ozone (o3) efficacy on reduction of phytophthora capsici in recirculated horticultural irrigation water  

E-Print Network (OSTI)

Microorganisms that cause plant disease have been isolated in recirculated irrigation water and increase the risks of disease incidence in horticultural operations. Ozone is an effective oxidizer used to disinfect drinking water supplies and treat industrial wastewater. The objective of this research was to investigate using ozone gas as part of a strategy to reduce the incidence of Phytophthora deBary in recirculated irrigation water. An isolate of Phytophthora capsici Leonian was cultured to induce sporulation. Spore dilutions were placed in aliquots of reverse osmosis water and bubbled with ozone gas (O3) to concentrations of 0 to 1.5 mg·L-1. Ozonated samples were plated and observed for colony forming units. Increasing ozone concentrations reduced the number of colony forming units to 0 at 1.5 mg· L-1 03. Turbidity effects on efficacy on Phytophthora capsici were tested using bentonite clay at 0 to 2.0 nephelometric turbidity units and ozone concentrations of 0 to 1.5 mg· L-1. Increasing bentonite did not affect the efficacy of increasing ozone concentrations on reducing colony formation to 0 at 1.5 mg·L-1 O3. Bioassays using Phytophthora capsici on Capsicum annuum L. seedlings confirmed apparent pathogenicity. Reverse osmosis water, containing a soluble fertilizer at 0 to 300 mg· L-1 N, was ozonated to concentrations of 0 to 1.5 mg·L-1 O3 and used to irrigate Chrysanthemum x morifolium T. de Romatuelle. Increasing ozone concentrations did not interact with increasing fertilizer levels to affect the final growth parameters. Chrysanthemum exposed to ozone gas concentrations of 0.5 to 1.5 mg·L-1 showed symptomatic ozone damage. Complete soluble fertilizer solutions with micronutrients were ozonated from 0 to 1.5 mg·L-1 O3 and analysed for nutrient content. Increasing ozone levels did not interact with fertilizers to affect macronutrients. Increasing ozone interacted with iron at a high fertilizer level. Ozone did not affect the efficacy of paclobutralzol in controlling growth in Viola x wittrockiana. Ozone was effective in controlling Phytophthora capsici in recirculated irrigation water with minimum impact on plant growth. Adjustments in fertility regiemes may be needed to counteract the oxidizing affect of ozone on micronutrients.

McDonald, Garry Vernon

2007-05-01T23:59:59.000Z

273

A two-dimensional model study of past trends in global ozone  

Science Conference Proceedings (OSTI)

Emissions and atmospheric concentrations of several trace gases important to atmospheric chemistry are known to have increased substantially over recent decades. Solar flux variations and the atmospheric nuclear test series are also likely to have affected stratospheric ozone. In this study, the LLNL two-dimensional chemical-radiative-transport model of the troposphere and stratosphere has been applied to an analysis of the effects that these natural and anthropogenic influences may have had on global ozone concentrations over the last three decades. In general, model determined species distributions and the derived ozone trends agree well with published analyses of land-based and satellite-based observations. Also, the total ozone and ozone distribution trends derived from CFC and other trace gas effects have a different response with latitude than the derived trends from solar flux variations, thus providing a ''signature'' for anthropogenic effects on ozone. 24 refs., 5 figs.

Wuebbles, D.J.; Kinnison, D.E.

1988-08-01T23:59:59.000Z

274

CF[sub 3] chemistry: Potential implications for stratospheric ozone  

SciTech Connect

The authors address questions about the chemistry of CF[sub 3] bearing compounds in the atmosphere, and the impact that the existence of and reaction rate constants for such species may have on stratospheric ozone. Species considered include CF[sub 3], CF[sub 3]O, CF[sub 3]O[sub 2], CF[sub 3]OH, CF[sub 3]OOH, CF[sub 3]ONO[sub 2], CF[sub 3]O[sub 2]NO[sub 2], and CF[sub 3]OOCl. Based on their calculational results, the authors suggest a number of experimental measurements which should substantially decrease uncertainties associated with the role of CF[sub 3] species in atmospheric chemistry related to ozone.

Ko, M.K.W.; Sze, N.D.; Rodriguez, J.M.; Weistenstein, D.K.; Heisey, C.W. (Atmospheric and Environmental Research, Inc., Cambridge, MA (United States)); Wayne, R.P.; Biggs, P.; Canosa-Mas, C.E. (Univ. of Oxford, Oxford (United Kingdom)); Sidebottom, H.W.; Treacy, J. (Univ. College, Dublin (Ireland))

1994-01-15T23:59:59.000Z

275

Ozone Alternative Disinfection Study for a Large-Scale Wastewater Treatment Plant  

Science Conference Proceedings (OSTI)

This report describes a feasibility study for the use of an ozonation disinfection system for the treatment of wastewater in the Passaic Valley.

1999-12-06T23:59:59.000Z

276

The Cost of Crop Damage Caused by Ozone Air Pollution From Motor Vehicles  

E-Print Network (OSTI)

D. T. Tingey, Assessment of Crop Loss From Air Pollutants,,Assessing Impacts of Ozone on Agricultural Crops: II.Crop Yield Functions and Alternative Exposure Statistics",

Delucchi, Mark A.; Murphy, James; Kim, Jin; McCubbin, Donald R.

1996-01-01T23:59:59.000Z

277

Secondary organic aerosol from ozone-initiated reactions with terpene-rich household products  

E-Print Network (OSTI)

analysis of competition between aerosol particle removal andof secondary organic aerosol. Part I: ?-pinene/ozone system.data when measuring ambient aerosol. Aerosol Science and

Coleman, Beverly K.

2008-01-01T23:59:59.000Z

278

Carbon Sequestration  

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

David a. Lang David a. Lang Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236 412-386-4881 david.lang@netl.doe.gov andrew chizmeshya Arizona State University Center for Solid State Science Tempe, AZ 85287-1704 480-965-6072 chizmesh@asu.edu A Novel ApproAch to MiNerAl cArboNAtioN: eNhANciNg cArboNAtioN While AvoidiNg MiNerAl pretreAtMeNt process cost Background Carbonation of the widely occurring minerals of the olivine group, such as forsterite (Mg 2 SiO 4 ), is a potential large-scale sequestration process that converts CO 2 into the environmentally benign mineral magnesite (MgCO 3 ). Because the process is exothermic, it inherently offers low-cost potential. Enhancing carbonation reactivity is the key to economic viability. Previous

279

The Carbon Cycle  

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

Carbon Cycle Print E-mail U.S. Carbon Cycle Science Program U.S. Carbon Cycle Science Program The U.S. Carbon Cycle Science Program, in consultation with the Carbon Cycle...

280

Internal energy and parameters of the order-disorder phase transition in titanium monoxide TiO{sub y}  

Science Conference Proceedings (OSTI)

Quantum-mechanical ab initio calculations are used to simulate the free energy functions for titanium monoxide TiO{sub y}. The effect of the long-range order of the Ti{sub 5}O{sub 5} type superstructure on the internal energy of the compound is studied by the supercell method. The dependences of the configuration entropy and free energy on the long-range order parameter are determined. It is found that the order-disorder phase transition in titanium monoxide must occur in accordance with the mechanism of the first-order phase transition with a critical value of the long-range order parameter of 0.971. The calculated parameters of the phase transition are compared with the experimental data and the results obtained using the model of point charges and by calculating the Madelung energy. It is concluded that the short-range order and the phonon entropy must be taken into account in calculating the equilibrium phase diagrams for strongly nonstoichiometric compounds.

Kostenko, M. G.; Rempel, A. A., E-mail: rempel@ihim.uran.ru [Russian Academy of Sciences, Institute of Solid-State Chemistry, Ural Branch (Russian Federation); Lukoyanov, A. V. [Ural Federal University (Russian Federation)

2013-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Traffic-related air pollution exposures and changes in heart rate variability in Mexico City: A panel study  

E-Print Network (OSTI)

related pollutants including PM 2.5 , carbon dioxide (COparticles; CO 2 : Carbon dioxide; CO: Carbon monoxide; HF:2 ), carbon monoxide (CO), nitrogen dioxide (NO 2 ),

2013-01-01T23:59:59.000Z

282

A Large Annual Cycle in Ozone above the Tropical Tropopause Linked to the Brewer–Dobson Circulation  

Science Conference Proceedings (OSTI)

Near-equatorial ozone observations from balloon and satellite measurements reveal a large annual cycle in ozone above the tropical tropopause. The relative amplitude of the annual cycle is large in a narrow vertical layer between 16 and 19 km, ...

William J. Randel; Mijeong Park; Fei Wu; Nathaniel Livesey

2007-12-01T23:59:59.000Z

283

Terannual Wave in the Ozone and Temperature in the Strato–Mesosphere as Deduced from Satellite Measurements  

Science Conference Proceedings (OSTI)

Two recent reference atmosphere models for ozone and temperature, which are deduced from satellite data, are employed to detect the existence and the behavior of a terannual wave both in ozone and temperature.

C. Varotsos; N. Dris; D. Asimakopoulos

1992-02-01T23:59:59.000Z

284

Ozone Profile Retrieval from an Advanced Infrared Sounder: Experiments with Tropopause-Based Climatology and Optimal Estimation Approach  

Science Conference Proceedings (OSTI)

Motivated by a significant potential for retrieving atmospheric ozone profile information from advanced satellite infrared sounders, this study investigates various methods to optimize ozone retrievals. A set of retrieval experiments has been ...

Jennifer C. Wei; Laura L. Pan; Eric Maddy; Jasna V. Pittman; Murty Divarkarla; Xiaozhen Xiong; Chris Barnet

2010-07-01T23:59:59.000Z

285

Ozone-surface interactions: Investigations of mechanisms, kinetics, mass transport, and implications for indoor air quality  

SciTech Connect

In this dissertation, results are presented of laboratory investigations and mathematical modeling efforts designed to better understand the interactions of ozone with surfaces. In the laboratory, carpet and duct materials were exposed to ozone and measured ozone uptake kinetics and the ozone induced emissions of volatile organic compounds. To understand the results of the experiments, mathematical methods were developed to describe dynamic indoor aldehyde concentrations, mass transport of reactive species to smooth surfaces, the equivalent reaction probability of whole carpet due to the surface reactivity of fibers and carpet backing, and ozone aging of surfaces. Carpets, separated carpet fibers, and separated carpet backing all tended to release aldehydes when exposed to ozone. Secondary emissions were mostly n-nonanal and several other smaller aldehydes. The pattern of emissions suggested that vegetable oils may be precursors for these oxidized emissions. Several possible precursors and experiments in which linseed and tung oils were tested for their secondary emission potential were discussed. Dynamic emission rates of 2-nonenal from a residential carpet may indicate that intermediate species in the oxidation of conjugated olefins can significantly delay aldehyde emissions and act as reservoir for these compounds. The ozone induced emission rate of 2-nonenal, a very odorous compound, can result in odorous indoor concentrations for several years. Surface ozone reactivity is a key parameter in determining the flux of ozone to a surface, is parameterized by the reaction probability, which is simply the probability that an ozone molecule will be irreversibly consumed when it strikes a surface. In laboratory studies of two residential and two commercial carpets, the ozone reaction probability for carpet fibers, carpet backing and the equivalent reaction probability for whole carpet were determined. Typically reaction probability values for these materials were 10{sup {minus}7}, 10{sup {minus}5}, and 10{sup {minus}5} respectively. To understand how internal surface area influences the equivalent reaction probability of whole carpet, a model of ozone diffusion into and reaction with internal carpet components was developed. This was then used to predict apparent reaction probabilities for carpet. He combines this with a modified model of turbulent mass transfer developed by Liu, et al. to predict deposition rates and indoor ozone concentrations. The model predicts that carpet should have an equivalent reaction probability of about 10{sup {minus}5}, matching laboratory measurements of the reaction probability. For both carpet and duct materials, surfaces become progressively quenched (aging), losing the ability to react or otherwise take up ozone. He evaluated the functional form of aging and find that the reaction probability follows a power function with respect to the cumulative uptake of ozone. To understand ozone aging of surfaces, he developed several mathematical descriptions of aging based on two different mechanisms. The observed functional form of aging is mimicked by a model which describes ozone diffusion with internal reaction in a solid. He shows that the fleecy nature of carpet materials in combination with the model of ozone diffusion below a fiber surface and internal reaction may explain the functional form and the magnitude of power function parameters observed due to ozone interactions with carpet. The ozone induced aldehyde emissions, measured from duct materials, were combined with an indoor air quality model to show that concentrations of aldehydes indoors may approach odorous levels. He shows that ducts are unlikely to be a significant sink for ozone due to the low reaction probability in combination with the short residence time of air in ducts.

Morrison, Glenn C.

1999-12-01T23:59:59.000Z

286

Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon...  

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

Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon Dioxide and Carbon-13 in Methane Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon Dioxide and...

287

Carbon supercapacitors  

SciTech Connect

Carbon supercapacitors are represented as distributed RC networks with transmission line equivalent circuits. At low charge/discharge rates and low frequencies these networks approximate a simple series R{sub ESR}C circuit. The energy efficiency of the supercapacitor is limited by the voltage drop across the ESR. The pore structure of the carbon electrode defines the electrochemically active surface area which in turn establishes the volume specific capacitance of the carbon material. To date, the highest volume specific capacitance reported for a supercapacitor electrode is 220F/cm{sup 3} in aqueous H{sub 2}SO{sub 4} (10) and {approximately}60 F/cm{sup 3} in nonaqueous electrolyte (8).

Delnick, F.M.

1993-11-01T23:59:59.000Z

288

Carbon particles  

DOE Patents (OSTI)

A method and apparatus whereby small carbon particles are made by pyrolysis of a mixture of acetylene carried in argon. The mixture is injected through a nozzle into a heated tube. A small amount of air is added to the mixture. In order to prevent carbon build-up at the nozzle, the nozzle tip is externally cooled. The tube is also elongated sufficiently to assure efficient pyrolysis at the desired flow rates. A key feature of the method is that the acetylene and argon, for example, are premixed in a dilute ratio, and such mixture is injected while cool to minimize the agglomeration of the particles, which produces carbon particles with desired optical properties for use as a solar radiant heat absorber.

Hunt, Arlon J. (Oakland, CA)

1984-01-01T23:59:59.000Z

289

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Ozone Ensemble Forecast with Machine Learning Algorithms  

E-Print Network (OSTI)

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Ozone Ensemble Forecast with Machine learning algorithms to perform sequential aggregation of ozone forecasts. The latter rely on a multimodel ensemble built for ozone forecasting with the modeling system Polyphemus. The ensemble simulations

Paris-Sud XI, Université de

290

Ozone levels in passenger cabins of commercial aircraft on North American  

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

Ozone levels in passenger cabins of commercial aircraft on North American Ozone levels in passenger cabins of commercial aircraft on North American and transoceanic routes Title Ozone levels in passenger cabins of commercial aircraft on North American and transoceanic routes Publication Type Journal Article Year of Publication 2008 Authors Bhangar, Seema, Shannon Cowlin, Brett C. Singer, Richard G. Sextro, and William W. Nazaroff Journal Environmental Science and Technology Volume 42 Issue 11 Pagination 3938-43 Abstract Ozone levels in airplane cabins, and factors that influence them, were studied on northern hemisphere commercial passenger flights on domestic U.S., transatlantic, and transpacific routes. Real-time data from 76 flights were collected in 2006-2007 with a battery-powered UV photometric monitor. Sample mean ozone level, peak-hour ozone level, and flight-integrated ozone exposures were highly variable across domestic segments (N = 68), with ranges of 100 ppbv) ozone levels on domestic flights were associated with winter-spring storms that are linked to enhanced exchange between the lower stratosphere and the upper troposphere.

291

Characterization of Ambient Ozone Levels in the Great Smoky Mountains National Park  

Science Conference Proceedings (OSTI)

Ambient ozone data collected at two sites in the Great Smoky Mountains National Park (GSMNP) are summarized and compared with data from an urban and a low-elevation rural site. The ozone climatology in the park is found to be similar to that of ...

Stephen F. Mueller

1994-04-01T23:59:59.000Z

292

Effects of the Water Quality Maintained by Ozonation Enhanced Ecosystem in the Landscape of Reclaimed Water  

Science Conference Proceedings (OSTI)

the landscape of reclaimed water always broke out water bloom because of containing high concentrations of nitrogen and phosphorus. The TP and TN of the landscape decreased to 0.04mg/L and 2.27mg/L respectively with recycling ozonation at the end of ... Keywords: ozonation, algae, nutrient removal, ecosystem, landscape of reclaimed water

Yu Demiao; Ma Jun; Bai Yu; Gan Yiping

2009-10-01T23:59:59.000Z

293

Seasonal Differences in the Trend of Total Ozone and Contributions from Tropospheric and Stratospheric Layers  

Science Conference Proceedings (OSTI)

Based on an average of the total-ozone changes determined by means of linear regression at individual Dobson stations within climatic zones, trends of total ozone for each of the four seasons have been evaluated for five climatic zones, and the ...

J. K. Angell

1987-04-01T23:59:59.000Z

294

Estimating long term urban exposure to particulate matter and ozone in Europe  

Science Conference Proceedings (OSTI)

OFIS is a robust and efficient model for simulating the formation of photochemical pollutants in an urban plume. In this paper we present applications of the recent further development of OFIS for calculating both particulate matter and ozone concentrations. ... Keywords: Air quality model, Ozone exposure, PM exposure, Urban air pollution

Athanasios Arvanitis; Nicolas Moussiopoulos

2006-04-01T23:59:59.000Z

295

Ozone Forecasts of the Stratospheric Polar Vortex–Splitting Event in September 2002  

Science Conference Proceedings (OSTI)

The Southern Hemisphere major warming event in September 2002 has led to a breakup of the vortex in the middle and higher stratosphere and to a corresponding splitting of the ozone hole. Daily 3D ozone forecasts, produced at the Royal Netherlands ...

Henk Eskes; Arjo Segers; Peter van Velthoven

2005-03-01T23:59:59.000Z

296

An Improved Quality Control for AIRS Total Column Ozone Observations within and around Hurricanes  

Science Conference Proceedings (OSTI)

Atmospheric Infrared Sounder (AIRS) provides twice-daily global observations from which total column ozone data can be retrieved. However, 20% ~ 30% of AIRS ozone data are flagged to be of bad quality. Most of the flagged data were identified to ...

H. Wang; X. Zou; G. Li

2012-03-01T23:59:59.000Z

297

A Statistical Analysis of Total Ozone Data from the Nimbus-4 BUV Satellite Experiment  

Science Conference Proceedings (OSTI)

Total ozone data from the Nimbus-4 BUV satellite experiment for the period April 1970–April 1977 is analyzed to: 1) provide a better appreciation and-understanding of the global distribution and behavior of total ozone, with emphasis on any ...

G. Reinsel; G. C. Tiao; R. Lewis

1982-02-01T23:59:59.000Z

298

Preparation of oxygen-containing organic products from bed-oxidized brown coal by ozonation  

Science Conference Proceedings (OSTI)

The possibility of modifying the functional composition of humic acids by gas-phase ozonation of bed-oxidized brown coal was examined. About 90% of the organic matter of brown coal was converted to low-molecular weight soluble oxygen-containing products by stepwise liquid-phase ozonation (in chloroform and acetic acid).

Semenova, S.A.; Patrakov, Y.F.; Batina, M.V. [National Academy of Science Belarus, Minsk (Byelarus)

2009-01-15T23:59:59.000Z

299

The Ozone Weekend Effect in California: Evidence Supporting NOx Emission Reductions  

E-Print Network (OSTI)

Ozone is typically higher on weekends (WE) than on weekdays (WD) at many of California’s air-monitoring stations. Sometimes called the “ozone WE effect, ” this phenomenon occurs despite substantially lower estimates of WE emissions for the major ozone precursors – volatile organic compounds (VOC) and oxides of nitrogen (NOx). Compared to WD emissions, WE emissions of NOx decrease more (proportionally) than do the WE emissions of VOC. Because the WE increases in ozone coincide with the relatively large WE reductions in NOx, some conclude that regulations that would reduce NOx emissions on all days would undermine ozone attainment efforts by causing ozone to decrease more slowly (or even to increase). At this time, public discussion of the ozone WE effect has mostly reflected the viewpoint that NOx emission reductions would not help reduce ambient ozone levels. A large body of published research from this perspective has accumulated over the last 10 to 20 years. Nevertheless, the presently available scientific evidence can also lead to the conclusion that NOx emission reductions may be needed to maintain or even to expedite progress toward attainment

Lawrence C. Larsen

2003-01-01T23:59:59.000Z

300

New Ozone Measurement Systems for Autonomous Operation on Ocean Buoys and Towers  

Science Conference Proceedings (OSTI)

Two autonomous ozone measurement systems for use on ocean buoys and towers have been built and are discussed herein. They are based on low-power atmospheric ozone sensors from Physical Sciences Inc. (PSI) and 2B Technologies. The PSI sensor ...

E. J. Hintsa; G. P. Allsup; C. F. Eck; D. S. Hosom; M. J. Purcell; A. A. Roberts; D. R. Scott; E. R. Sholkovitz; W. T. Rawlins; P. A. Mulhall; K. Lightner; W. W. McMillan; J. Song; M. J. Newchurch

2004-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Comparison between the TOPAZ Airborne Ozone Lidar and In Situ Measurements during TexAQS 2006  

Science Conference Proceedings (OSTI)

The NOAA airborne ozone lidar system [Tunable Optical Profiler for Aerosol and Ozone (TOPAZ)] is compared with the fast-response chemiluminescence sensor flown aboard the NOAA WP-3D during the 2006 Texas Air Quality Study (TexAQS). TOPAZ ...

A. O. Langford; C. J. Senff; R. J. Alvarez II; R. M. Banta; R. M. Hardesty; D. D. Parrish; T. B. Ryerson

2011-10-01T23:59:59.000Z

302

Carbon microtubes  

DOE Patents (OSTI)

A carbon microtube comprising a hollow, substantially tubular structure having a porous wall, wherein the microtube has a diameter of from about 10 .mu.m to about 150 .mu.m, and a density of less than 20 mg/cm.sup.3. Also described is a carbon microtube, having a diameter of at least 10 .mu.m and comprising a hollow, substantially tubular structure having a porous wall, wherein the porous wall comprises a plurality of voids, said voids substantially parallel to the length of the microtube, and defined by an inner surface, an outer surface, and a shared surface separating two adjacent voids.

Peng, Huisheng (Shanghai, CN); Zhu, Yuntian Theodore (Cary, NC); Peterson, Dean E. (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM)

2011-06-14T23:59:59.000Z

303

Elevated Ozone Layers over the Seoul Metropolitan Region in Korea: Evidence for Long-Range Ozone Transport from Eastern China and Its Contribution to Surface Concentrations  

Science Conference Proceedings (OSTI)

Elevated layers of high ozone concentration were observed over the Seoul metropolitan region (SMR) in Korea by ozonesonde measurements during 6–9 June 2003. An analysis of the synoptic-scale meteorological features and backward trajectories ...

In-Bo Oh; Yoo-Keun Kim; Mi-Kyung Hwang; Cheol-Hee Kim; Soontae Kim; Sang-Keun Song

2010-02-01T23:59:59.000Z

304

Tropospheric and Lower Stratospheric Ozone Profiles From AERI-X Emission Spectra  

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

Tropospheric and Lower Stratospheric Ozone Profiles Tropospheric and Lower Stratospheric Ozone Profiles From AERI-X Emission Spectra P. F. Fogal and F. J. Murcray Department of Physics and Astronomy University of Denver Denver, Colorado Introduction The University of Denver Atmospheric Emission Radiometric Interferometer-Extended (AERI-X) has been in regular operation at the Southern Great Plains (SGP) Atmospheric Radiation Measurements (ARM) Program site, conditions permitting, since the mid-1990s. We present here the analysis of several spectra from May 10, 1999, and demonstrate the ability to retrieve the tropospheric ozone profile at the ARM site. While the presence of ozone in the stratosphere is of vital importance for several reasons, in the troposphere, ozone is a pollutant and a powerful oxidizer. For these reasons, it is

305

Isolation and characterization of five ozone-inductible cDNA clones from Atriplax canescens (saltbush)  

E-Print Network (OSTI)

Prolonged exposure of plants to ozone inhibits growth and development and produces visible signs of damage. Within a few hours of exposure, certain biochemical alterations have been observed with the induction of several stress-related proteins. accumulation of several polya RNAS. CDNA clones derived from five different polya RNAs which accumulate in ozone-stressed shrub leaves were isolated by differential screening methods. Alteration in gene expression which occurs with ozone, sulfur dioxide and water deficit were examined, and those cDNAs were sequenced. Clone 012-1, hybridized with three RNA species, is initially induced in response to both ozone and water deficit stress, but is repressed to prolonged ozone and sulfur dioxide exposure. Clone 012-1 has strong homology with small subunit RRNA. Northern blots suggest that transcripts hybridized to 012-1 are a naked species (about 1.45 kb) and are subfragments (1.0 and 0.45 kb) of 1.4 kb species. 0112A-3 showed an increase in response to two pollutants, but not to water deficit. 0112A-3 encodes a polypeptide which has homology with wound-inducible protein inhibitors. MRNA species corresponding to 018-3 are transiently induced in response to sulfur dioxide and water deficit stress, and are late-induced by ozone stress. The 018-3 protein is Ozone fumigation to Atriplex canescens (saltbush) caused the homologous to thiol proteases. Clone OID2-2 and OIS14-3 show similar patterns in gene expression Transcript levels of the two genes rise rapidly and remain at a high level by seven days after ozone fumigation, and rise steadily in response to water deficit and sulfur dioxide stress. The deduced amino acids of both clones are glycine-rich proteins, and they have repeated motifs, (G-G-G-Y-G-H)n, and putative cell wall-targeting signal peptides. Northern analyses indicate that plant cells respond to ozone stress by increasing transcription of several genes. Furthermore, the expression of ozone-inducible genes varies with respect to the time course of induction and different stresses such as water-deficit and sulfur dioxide stress. The encoded proteins suggest that: first, ozone stress may generate wounding damage to increase the expression of the proteinase inhibitor (0112A-3) and the protease (018-3); second, ozone stress may change the cell wall components by increasing the amount of glycine-rich proteins (OID2-2 and OIS14-3); and third, ozone stress may change the cell wall structure with tyrosine-mediated cross-linking, which may use oxyradical-scavenging effects to relieve cellular stress.

No, Eun-Gyu

1994-01-01T23:59:59.000Z

306

Carbon | Open Energy Information  

Open Energy Info (EERE)

Carbon Sector Retrieved from "http:en.openei.orgwindex.php?titleCarbon&oldid271960" Categories: Articles with outstanding TODO tasks...

307

Carbon Additionality: Discussion Paper  

E-Print Network (OSTI)

Carbon Additionality: A review Discussion Paper Gregory Valatin November 2009 Forest Research. Voluntary Carbon Standards American Carbon Registry Forest Carbon Project Standard (ACRFCPS) 27 CarbonFix Standard (CFS) 28 Climate, Community and Biodiversity Standard (CCBS) 28 Forest Carbon Standard (FCS) 28

308

Future aircraft and potential effects on stratospheric ozone and climate  

Science Conference Proceedings (OSTI)

The purpose of this study is to extend the recent research examining the global environmental effects from potential fleets of subsonic and supersonic commercial aircraft. Initial studies with LLNL models of global atmospheric chemical, radiative, and transport processes have indicated that substantial decreases in stratospheric ozone concentrations could result from emissions of NO{sub x} from aircraft flying in the stratosphere, depending on fleet size and magnitude of the engine emissions. These studies used homogeneous chemical reaction rates (e.g. gas-phase chemistry). Recent evidence indicates that reactions on particles in the stratosphere may be important. Heterogeneous chemical reactions, for instance, N{sub 2}O{sub 5}and ClONO{sub 2} on background sulfuric acid aerosols, convert NO{sub x}(NO and NO{sub 2}) molecules to HNO{sub 3}. This decreases the odd oxygen loss from the NO{sub x} catalytic cycle and increases the odd oxygen loss from the Cl{sub x} catalytic cycle. By including these heterogeneous reactions in the LLNL model, the relative partitioning of odd oxygen loss between these two families changes, with the result that emissions of NO{sub x} from proposed aircraft fleets flying in the stratosphere now increase zone. Having these heterogeneous processes present also increases ozone concentration in the troposphere relative to gas-phase only chemistry calculations for emissions of NO{sub x} from subsonic aircraft. 26 refs., 5 figs., 3 tabs.

Kinnison, D.E.; Wuebbles, D.J.

1991-10-01T23:59:59.000Z

309

Imaging Spectrometry of Tropospheric Ozone and Water Vapor  

E-Print Network (OSTI)

Imaging spectrometry has the potential of remotely detecting atmospheric trace gases on the basis of their absorption of radiation. Ozone absorbs particulary in the ultraviolet and visible range of the spectrum, whereas water vapor has strong absorption features in the near infrared. Hence, spectrometry is expected to be a promising tool to extract these trace gas contents in a given air column by using the correlation between cumulative trace gas amount and absorption strength in the sensor channels located in the absorption bands. New mathematical methods of channel selection and method evaluation for measuring atmospheric trace gases are presented. Three already known and four new differential absorption techniques are evaluated by using MODTRAN2 simulations of the radiance spectrum at the sensor level and an analytical error propagation analysis. Finally, the best methods and channel combinations are selected and applied to AVIRIS data of Central Switzerland. The spatial ozone distribution could be estimated over water in a qualitative manner, whereas the total column water vapor content could be quantified over land with an accuracy of about 6%.

Daniel Schläpfer; Klaus I. Itten; Johannes Keller

1995-01-01T23:59:59.000Z

310

Ozone-depleting-substance control and phase-out plan  

SciTech Connect

Title VI of the Federal Clean Air Act Amendments of 1990 requires regulation of the use and disposal of ozone-depleting substances (ODSs) (e.g., Halon, Freon). Several important federal regulations have been promulgated that affect the use of such substances at the Hanford Site. On April 23, 1993, Executive Order (EO) 12843, Procurement Requirements and Policies for Federal Agencies for Ozone-Depleting Substances (EPA 1993) was issued for Federal facilities to conform to the new US Environmental Protection Agency (EPA) regulations implementing the Clean Air Act of 1963 (CAA), Section 613, as amended. To implement the requirements of Title VI the US Department of Energy, Richland Operations Office (RL), issued a directive to the Hanford Site contractors on May 25, 1994 (Wisness 1994). The directive assigns Westinghouse Hanford Company (WHC) the lead in coordinating the development of a sitewide comprehensive implementation plan to be drafted by July 29, 1994 and completed by September 30, 1994. The implementation plan will address several areas where immediate compliance action is required. It will identify all current uses of ODSs and inventories, document the remaining useful life of equipment that contains ODS chemicals, provide a phase-out schedule, and provide a strategy that will be implemented consistently by all the Hanford Site contractors. This plan also addresses the critical and required elements of Federal regulations, the EO, and US Department of Energy (DOE) guidance. This plan is intended to establish a sitewide management system to address the clean air requirements.

Nickels, J.M.; Brown, M.J.

1994-07-01T23:59:59.000Z

311

Carbon Sequestration  

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

Technology Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-4966 jose.figueroa@netl.doe.gov Kevin o'Brien Principal Investigator SRI International Materials Research Laboratory 333 Ravenswood Avenue Menlo Park, AK 94025 650-859-3528 kevin.obrien@sri.com Fabrication and Scale-Up oF polybenzimidazole - baSed membrane SyStem For pre - combUStion captUre oF carbon dioxide Background In order to effectively sequester carbon dioxide (CO 2 ) from a gasification plant, there must be an economically viable method for removing the CO 2 from other gases. While CO 2 separation technologies currently exist, their effectiveness is limited. Amine-based separation technologies work only at low temperatures, while pressure-swing absorption and cryogenic distillation consume significantly

312

Carbon Sequestration  

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

andrea Mcnemar andrea Mcnemar National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-2024 andrea.mcnemar@netl.doe.gov Gregory J. Elbring Principal Investigator Sandia National Laboratory P.O. Box 5800 Albuquerque, NM 87185 505-844-4904 gjelbri@sandia.gov GeoloGic SequeStration of carbon DioxiDe in a DepleteD oil reServoir: a comprehenSive moDelinG anD Site monitorinG project Background The use of carbon dioxide (CO 2 ) to enhance oil recovery (EOR) is a familiar and frequently used technique in the United States. The oil and gas industry has significant experience with well drilling and injecting CO 2 into oil-bearing formations to enhance production. While using similar techniques as in oil production, this sequestration field

313

Sensitivity analysis of ozone formation and transport for a Central California air pollution episode  

SciTech Connect

CMAQ-HDDM is used to determine spatial and temporal variations in ozone limiting reagents and local vs upwind source contributions for an air pollution episode in Central California. We developed a first- and second- order sensitivity analysis approach with the Decoupled Direct Method to examine spatial and temporal variations of ozone-limiting reagents and the importance of local vs upwind emission sources in the San Joaquin Valley of central California for a five-day ozone episode (29th July-3rd Aug, 2000). Despite considerable spatial variations, nitrogen oxides (NO{sub x}) emission reductions are overall more effective than volatile organic compound (VOC) control for attaining the 8-hr ozone standard in this region for this episode, in contrast to the VOC control that works better for attaining the prior 1-hr ozone standard. Inter-basin source contributions of NO{sub x} emissions are limited to the northern part of the SJV, while anthropogenic VOC (AVOC) emissions, especially those emitted at night, influence ozone formation in the SJV further downwind. Among model input parameters studied here, uncertainties in emissions of NO{sub x} and AVOC, and the rate coefficient of the OH + NO{sub 2} termination reaction, have the greatest effect on first-order ozone responses to changes in NO{sub x} emissions. Uncertainties in biogenic VOC emissions only have a modest effect because they are generally not collocated with anthropogenic sources in this region.

Jin, Ling; Tonse, Shaheen; Cohan, Daniel S.; Mao, Xiaoling; Harley, Robert A.; Brown, Nancy J.

2009-05-15T23:59:59.000Z

314

Gasification behavior of carbon residue in bed solids of black liquor gasifier  

SciTech Connect

Steam gasification of carbon residue in bed solids of a low-temperature black liquor gasifier was studied using a thermogravimetric system at 3 bar. Complete gasification of the carbon residue, which remained unreactive at 600 C, was achieved in about 10 min as the temperature increased to 800 C. The rate of gasification and its temperature dependence were evaluated from the non-isothermal experiment results. Effects of particle size and adding H{sub 2} and CO to the gasification agent were also studied. The rate of steam gasification could be taken as zero order in carbon until 80% of carbon was gasified, and for the rest of the gasification process the rate appeared to be first order in carbon. The maximum rate of carbon conversion was around 0.003/s and the activation energy was estimated to be in the range of 230-300 kJ/mol. The particle size did not show significant effect on the rate of gasification. Hydrogen and carbon monoxide appeared to retard the onset of the gasification process. (author)

Preto, Fernando; Zhang, Xiaojie (Frank); Wang, Jinsheng [CANMET Energy Technology Centre, Natural Resources (Canada)

2008-07-15T23:59:59.000Z

315

Incorporation of catalytic dehydrogenation into Fischer-Tropsch synthesis to lower carbon dioxide emissions  

DOE Patents (OSTI)

A method for producing liquid fuels includes the steps of gasifying a starting material selected from a group consisting of coal, biomass, carbon nanotubes and mixtures thereof to produce a syngas, subjecting that syngas to Fischer-Tropsch synthesis (FTS) to produce a hyrdrocarbon product stream, separating that hydrocarbon product stream into C1-C4 hydrocarbons and C5+ hydrocarbons to be used as liquid fuels and subjecting the C1-C4 hydrocarbons to catalytic dehydrogenation (CDH) to produce hydrogen and carbon nanotubes. The hydrogen produced by CDH is recycled to be mixed with the syngas incident to the FTS reactor in order to raise the hydrogen to carbon monoxide ratio of the syngas to values of 2 or higher, which is required to produce liquid hydrocarbon fuels. This is accomplished with little or no production of carbon dioxide, a greenhouse gas. The carbon is captured in the form of a potentially valuable by-product, multi-walled carbon nanotubes (MWNT), while huge emissions of carbon dioxide are avoided and very large quantities of water employed for the water-gas shift in traditional FTS systems are saved.

Huffman, Gerald P

2012-09-18T23:59:59.000Z

316

Nanostructuring of Microporous Carbons with Carbon Nanotubes for ...  

Science Conference Proceedings (OSTI)

Presentation Title, Nanostructuring of Microporous Carbons with Carbon Nanotubes for Efficient Carbon Dioxide Capture. Author(s), Stephen C. Hawkins,  ...

317

Carbon Steels  

Science Conference Proceedings (OSTI)

Table 1   Corrosion rates of carbon steel at various locations...Vancouver Island, BC, Canada Rural marine 13 0.5 Detroit, MI Industrial 14.5 0.57 Fort Amidor Pier, CZ Marine 14.5 0.57 Morenci, MI Urban 19.5 0.77 Potter County, PA Rural 20 0.8 Waterbury, CT Industrial 22.8 0.89 State College, PA Rural 23 0.9 Montreal, QC, Canada Urban 23 0.9 Durham, NH Rural 28 1.1...

318

Aerosol organic carbon to black carbon ratios: Analysis of published...  

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

Aerosol organic carbon to black carbon ratios: Analysis of published data and implications for climate forcing Title Aerosol organic carbon to black carbon ratios: Analysis of...

319

Source Contributions to VOC's to Ozone Formation in Southeast Texas Using a Source-oriented Air Quality Model  

E-Print Network (OSTI)

Houston-Galveston-Brazoria area is in severe non-attainment status for ozone compliance. Source-oriented mechanistic modeling was used to determine the major sources of VOCs that contributes to ozone formation during the Texas Air Quality Study (TexAQS) from August 16, 2000 to September 7, 2000. Environmental Protection Agency (EPA)?s Community Scale Air Quality Model (CMAQ) version 4.6 was used as a host model to include a revised Statewide Air Pollution Research Center (SAPRC99) photochemical mechanism with source-oriented extensions to track the contributions of Volatile Organic Compounds (VOCs) emissions from diesel engines, biogenic sources, highway gasoline vehicles, fuel combustion, off-highway gasoline engines, solvent utilization and petrochemical industries to ozone formation in the atmosphere. Source-oriented emissions needed to drive the model were generated using a revised Sparse Matrix Operator Kernel Emissions (SMOKE) model version 2.4. VOC/NOx ratios are found to be a critical factor in the formation of ozone. Highest ozone formation rates were observed for ratios from 5-15. The contributions of VOC to ozone formation were estimated based on the linear relationship between the rate of NO to NO2 conversion due to radicals generated from VOC oxidation and the rate of net ozone formation. Petroleum and other industrial sources are the largest anthropogenic sources in the urban Houston region and contribute to 45% of the ozone formation in the HGB area. Highway gasoline vehicles make contributions of approximately 28% to ozone formation. Wildfires contribute to as much 11% of ozone formation on days of high wildfire activity. The model results show that biogenic emissions account for a significant amount of ozone formation in the rural areas. Both highway and off-highway vehicles contribute significantly to ozone formation especially in the downwind region. Diesel vehicles do not contribute significantly to ozone formation due to their low VOC emissions.

Krishnan, Anupama

2010-05-01T23:59:59.000Z

320

Upper-Level Atmospheric Circulation Patterns and Ground-Level Ozone in the Atlanta Metropolitan Area  

Science Conference Proceedings (OSTI)

The purpose of this paper is to identify middle-troposphere circulation patterns associated with high ozone concentrations during June–August of 2000–07 in the Atlanta, Georgia, metropolitan statistical area (MSA), which is located in the ...

Jeremy E. Diem; Melissa A. Hursey; Imani R. Morris; Amanda C. Murray; Ricardo A. Rodriguez

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

An Estimation of the Climatic Effects of Stratospheric Ozone Losses during the 1980s  

Science Conference Proceedings (OSTI)

In order to study the potential climatic effects of the ozone hole more directly and to assess the validity of previous lower resolution model results, the latest high spatial resolution version of the Atmospheric and Environmental Research, Inc.,...

Robert M. MacKay; Malcolm K. W. Ko; Run-Lie Shia; Yajaing Yang; Shuntai Zhou; Gyula Molnar

1997-04-01T23:59:59.000Z

322

UV Sensitivity to Changes in Ozone, Aerosols and Clouds in Seoul, Korea  

Science Conference Proceedings (OSTI)

The total ozone (O3) and aerosol optical depth (AOD) at 320 nm have been observed from the ultraviolet (UV) measurements made at Yonsei University in Seoul, Korea with Dobson and Brewer spectrophotometers, respectively, during 2004-2010. The daily ...

Woogyung Kim; Jhoon Kim; Sang Seo Park; Hi-Ku Cho

323

A Two-Dimensional Model of the Quasi-biennial Oscillation of Ozone  

Science Conference Proceedings (OSTI)

The stratospheric quasi-biennial oscillation (QBO) in zonal wind, temperature and column ozone has been successfully modeled in a two-dimensional dynamical/chemical model by the introduction of a parameterization scheme to model the transfer of ...

L. J. Gray; J. A. Pyle

1989-01-01T23:59:59.000Z

324

Greenhouse gases and future long-term changes in the stratospheric temperature and the ozone layer  

Science Conference Proceedings (OSTI)

A numerical two-dimensional (2D) interactive dynamical-radiative-photochemical model including aerosol physics is used to examine the expected long-term changes in stratospheric temperature and the Earth's ozone layer due to anthropogenic pollution of ...

I. G. Dyominov; A. M. Zadorozhny

2008-05-01T23:59:59.000Z

325

Separating the Dynamical Effects of Climate Change and Ozone Depletion. Part II: Southern Hemisphere Troposphere  

Science Conference Proceedings (OSTI)

The separate effects of ozone depleting substances (ODSs) and greenhouse gases (GHGs) on forcing circulation changes in the Southern Hemisphere extratropical troposphere are investigated using a version of the Canadian Middle Atmosphere Model (...

Charles McLandress; Theodore G. Shepherd; John F. Scinocca; David A. Plummer; Michael Sigmond; Andreas I. Jonsson; M. Catherine Reader

2011-03-01T23:59:59.000Z

326

Climatology and trends in the forcing of the stratospheric ozone transport  

E-Print Network (OSTI)

A thorough analysis of the ozone transport was carried out using the Transformed-Mean Eulerian (TEM) tracer continuity equation and the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40). In ...

Monier, Erwan

327

Climatology and Trends in the Forcing of the Stratospheric Ozone Transport  

E-Print Network (OSTI)

A thorough analysis of the ozone transport was carried out using the Transformed-Mean Eulerian (TEM) tracer transport equation and the European Centre for Medium-Range Weather Forecasts (ECMWF) Re- Analysis (ERA-40). In ...

Monier, Erwan

328

The effect of variability in industrial emissions on ozone formation in Houston, Texas  

E-Print Network (OSTI)

Ambient observations have indicated that high concentrations of ozone observed in the Houston/Galveston area are associated with plumes of highly reactive hydrocarbons, mixed with NOx, from industrial facilities. Ambient ...

Webster, Mort David

2007-01-01T23:59:59.000Z

329

Missing Stratospheric Ozone Decrease at Southern Hemisphere Middle Latitudes after Mt. Pinatubo: A Dynamical Perspective  

Science Conference Proceedings (OSTI)

Although large total ozone decreases occurred in the Northern Hemisphere extratropics in the years after the volcanic eruption of Mt. Pinatubo that are generally attributed to the eruption, comparable decreases did not emerge in the Southern ...

C. Schnadt Poberaj; J. Staehelin; D. Brunner

2011-09-01T23:59:59.000Z

330

Modeling Ozone Formation and Transport in the Cascadia Region of the Pacific Northwest  

Science Conference Proceedings (OSTI)

The rapidly growing Cascadia region of the Pacific Northwest, consisting of western Washington, Oregon, and southwestern British Columbia, has experienced surface ozone concentrations that exceed federally mandated standards. A modeling system ...

Mike Barna; Brian Lamb; Susan O’Neill; Hal Westberg; Cris Figueroa-Kaminsky; Sally Otterson; Clint Bowman; Jennifer DeMay

2000-03-01T23:59:59.000Z

331

Short-Range Prediction of Tropospheric Ozone Concentrations and Exceedances for Baton Rouge, Louisiana  

Science Conference Proceedings (OSTI)

Previous research has been focused on improving forecasts of the daily maximum 1-h concentration of tropospheric ozone, which was based on criteria used by the U.S. Environmental Protection Agency (EPA). However, in 2001, EPA began implementing ...

Robert V. Rohli; S. A. Hsu; Brian W. Blanchard; R. L. Fontenot

2003-04-01T23:59:59.000Z

332

Mesoscale Meteorological Structure of a High-Ozone Episode during the 1995 NARSTO-Northeast Study  

Science Conference Proceedings (OSTI)

Observations and numerical model fields were analyzed to study the meteorological structures contributing to high concentrations of lower-tropospheric ozone over the northeastern United States on 14–15 July 1995. It was found that the episode is ...

Nelson L. Seaman; Sara A. Michelson

2000-03-01T23:59:59.000Z

333

Trends in Stratospheric Ozone: Lessons Learned from a 3D Chemical Transport Model  

Science Conference Proceedings (OSTI)

Stratospheric ozone is affected by external factors such as chlorofluorcarbons (CFCs), volcanoes, and the 11-yr solar cycle variation of ultraviolet radiation. Dynamical variability due to the quasi-biennial oscillation and other factors also ...

Richard S. Stolarski; Anne R. Douglass; Stephen Steenrod; Steven Pawson

2006-03-01T23:59:59.000Z

334

Trends in ozone and temperature structure: comparison of theory and measurements  

Science Conference Proceedings (OSTI)

Comparison of model calculated trends in ozone and temperature due to inferred variations in trace gas concentrations and solar flux, is made with available analyses of observations. In general, the calculated trends in total ozone and the vertical ozone distribution agree well with the measured trends. However, there are too many remaining theoretical and sampling uncertainties to establish causality. Although qualitatively in agreement, the observed temperature decrease in the upper stratosphere is significantly larger than that calculated. Theoretical results suggest a significant influence on stratospheric ozone from solar flux variations, but observational evidence is at best inconclusive. Overall, the trend comparisons tend to be consistent with the hypothesis that several different anthropogenic influences are affecting the present global atmosphere. 7 references, 3 figures, 2 tables.

Wuebbles, D.J.

1984-08-01T23:59:59.000Z

335

The Characterization of an Air Pollution Episode Using Satellite Total Ozone Measurements  

Science Conference Proceedings (OSTI)

A case study is presented which demonstrates that measurements of total ozone from a space platform can be used to study a widespread air pollution episode over the southeastern United States. In particular the synoptic-scale distribution of ...

Jack Fishman; Fred M. Vukovich; Donald R. Cahoon; Mark C. Shipham

1987-12-01T23:59:59.000Z

336

Characterization of the Nimbus-7 SBUV Radiometer for the Long-Term Monitoring of Stratospheric Ozone  

Science Conference Proceedings (OSTI)

Precise knowledge of in-orbit sensitivity change is critical for the successful monitoring of stratosphere ozone by satellite-based remote sensors. This paper evaluates those aspects of the in-flight operation that influence the long-term ...

R. P. Cebula; H. Park; D. F. Heath

1988-04-01T23:59:59.000Z

337

Global Normal-Mode Rossby Waves Observed in Stratospheric Ozone Data  

Science Conference Proceedings (OSTI)

Westward-propagating Rossby normal-mode planetary waves are documented in stratospheric ozone data using Solar Backscatter Ultraviolet (SBUV) satellite measurements. These modes are evidenced by enhanced spectral power and near-global coherence ...

William J. Randel

1993-02-01T23:59:59.000Z

338

Calculated Influence of Temperature-Related Factors on Ozone Formation Rates in the Lower Troposphere  

Science Conference Proceedings (OSTI)

Using an atmospheric chemical reaction mechanism applied to air parcels near the earth's surface, the sensitivities ozone (O3) formation rates are quantified for changes in four meteorologically controlled parameters: temperature, sunlight ...

Chris J. Walcek; Hong-H. Yuan

1995-05-01T23:59:59.000Z

339

Application of gaseous disinfectants ozone and chlorine dioxide for inactivation of Bacillus subtilis spores  

E-Print Network (OSTI)

An assessment of ozone and chlorine dioxide for treatment ofAston, R. ; Synan, J. , “Chlorine dioxide as a bactericide62, 80. 14. Keane, T. , “ Chlorine dioxide – why all the

Aydogan, Ahmet

2006-01-01T23:59:59.000Z

340

Interannual Variations of Total Ozone and Their Relationship to Variations of Planetary Wave Activity  

Science Conference Proceedings (OSTI)

Interannual variations of total ozone at midlatitudes of the Northern Hemisphere are shown to operate coherently with variations of upwelling planetary wave activity from the troposphere. Variations of upwelling wave activity, which modulate ...

Andrew C. Fusco; Murry L. Salby

1999-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Reductions in ozone concentrations due to controls on variability in industrial flare emissions in Houston, Texas  

E-Print Network (OSTI)

High concentrations of ozone in the Houston/Galveston area are associated with industrial plumes of highly reactive hydrocarbons, mixed with NOx. The emissions leading to these plumes can have significant temporal variability, ...

Nam, Junsang

2007-01-01T23:59:59.000Z

342

An Automated Classification Scheme Designed to Better Elucidate the Dependence of Ozone on Meteorology  

Science Conference Proceedings (OSTI)

This paper utilizes a two-stage (average linkage then convergent k means) clustering approach as part of an automated meteorological classification scheme designed to better elucidate the dependence of ozone on meteorology. When applied to 10 ...

Brian K. Eder; Jerry M. Davis; Peter Bloomfield

1994-10-01T23:59:59.000Z

343

Ground-level ozone in eastern North America : its formation and transport  

E-Print Network (OSTI)

Ozone (Os), a natural component of the troposphere, is augmented by photochemical processes involving manmade emissions of nitrogen oxides (NOx) and volatile organic compounds (VOCs). Sufficiently high concentrations of ...

Zemba, Stephen G.

1990-01-01T23:59:59.000Z

344

A Novel Lightweight Low-Power Dual-Beam Ozone Photometer Utilizing Solid-State Optoelectronics  

Science Conference Proceedings (OSTI)

Recent advances in semiconductor materials and fabrication techniques have allowed the development of light-emitting diodes (LEDs) with wavelengths extending down into the UV-C region (? < 280 nm). A new ozone photometer has been developed ...

Lars E. Kalnajs; Linnea M. Avallone

2010-05-01T23:59:59.000Z

345

Stratospheric Ozone Decrease Due to Chlorofluoromethane Photolysis: Predictions of Latitude Dependence  

Science Conference Proceedings (OSTI)

A two-dimensional model is used to predict the 1990 reduction in ozone due to the chlorine compounds formed by chlorofluoromethane (CFM) photolysis when the CFM release rate is held constant at the 1975 value. The predicted globally averaged ...

W. J. Borucki; R. C. Whitten; H. T. Woodward; L. A. Capone; C. A. Riegel; S. Gaines

1980-03-01T23:59:59.000Z

346

An Approach to the Detection of Long-Term Trends in Upper Stratospheric Ozone from Space  

Science Conference Proceedings (OSTI)

A central problem in the detection of long-term trends in upper stratospheric ozone from orbiting remote sensors involves the separation of instrument drifts from true geophysical changes. Periodic flights of a Solar Backscatter Ultraviolet ...

John E. Frederick; Xufeng Niu; Ernest Hilsenrath

1990-10-01T23:59:59.000Z

347

Ozone Cycles in the Western Mediterranean Basin: Interpretation of Monitoring Data in Complex Coastal Terrain  

Science Conference Proceedings (OSTI)

In summer, the complex layout of the coasts and mountains surrounding the western Mediterranean basin favors the development of mesoscale atmospheric recirculations and the formation of ozone reservoir layers above the coastal areas and the sea. ...

Millán M. Millán; Enrique Mantilla; Rosa Salvador; Adoración Carratalá; Maria José Sanz; Lucio Alonso; Gotzon Gangoiti; Marino Navazo

2000-04-01T23:59:59.000Z

348

Evaluation of an Improved Set of Predictors for Derivation of Total Ozone from TOVS Measurements  

Science Conference Proceedings (OSTI)

Three improvements to the operational regression procedures used at NOAA/NESDIS to derive total ozone from the TIROS Operational Vertical Sounder (TOVS) measurements are evaluated. An additional predictor, derived from the TOVS measurements, is ...

James H. Lienesch

1988-10-01T23:59:59.000Z

349

Estimating changes in urban ozone concentrations due to life cycle emissions from hydrogen transportation systems  

E-Print Network (OSTI)

criteria.htmlS. Accessed on NRC, 1991. Rethinking the OzonePress, Washington, DC. NRC, 2004. The Hydrogen Economy:hours of the summer months (NRC, 1991). In summary the ‘‘

Wang, Guihua; Ogden, Joan M; Chang, Daniel P.Y.

2007-01-01T23:59:59.000Z

350

The Long-Term Coupling between Column Ozone and Tropopause Properties  

Science Conference Proceedings (OSTI)

The observational data of the vertical temperature distribution and column ozone, obtained from 10 main stations in the Northern Hemisphere, are analyzed in order to explore the tropopause variations in conjunction with the dynamical variability ...

Costas Varotsos; Costas Cartalis; Andrew Vlamakis; Chris Tzanis; Iphigenia Keramitsoglou

2004-10-01T23:59:59.000Z

351

Dynamical Response of the Tropical Total Ozone to Sea Surface Temperature Changes  

Science Conference Proceedings (OSTI)

Interannual variations of total ozone in the equatorial region are discussed in terms of the lower-stratospheric dynamical processes associated with sea surface temperature (SST) changes on an EJ Niño-Southern Oscillation time scale. Tropospheric ...

Fumio Hasebe

1993-02-01T23:59:59.000Z

352

Interannual Variability and Trends of Extratropical Ozone. Part II: Southern Hemisphere  

Science Conference Proceedings (OSTI)

A principal component analysis (PCA) is applied to the Southern Hemisphere (SH) total column ozone following the method established for analyzing the data in the Northern Hemisphere (NH) in a companion paper. The interannual variability (IAV) of ...

Xun Jiang; Steven Pawson; Charles D. Camp; J. Eric Nielsen; Run-Lie Shia; Ting Liao; Varavut Limpasuvan; Yuk L. Yung

2008-10-01T23:59:59.000Z

353

The Ozone Hole Breakup in September 2002 as Seen by SCIAMACHY on ENVISAT  

Science Conference Proceedings (OSTI)

An unprecedented stratospheric warming in the Southern Hemisphere in September 2002 led to the breakup of the Antarctic ozone hole into two parts. The Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) on the ...

C. von Savigny; A. Rozanov; H. Bovensmann; K.-U. Eichmann; S. Noël; V. Rozanov; B.-M. Sinnhuber; M. Weber; J. P. Burrows; J. W. Kaiser

2005-03-01T23:59:59.000Z

354

Remote Sensing Measurements of Tropospheric Ozone by Ground-Based Thermal Emission Spectroscopy  

Science Conference Proceedings (OSTI)

Remote sensing measurements of the troposphere were obtained by a new technique in which spectra of the downward thermal radiation from tropospheric ozone were measured with a Fourier transform infrared spectrometer. The measurements were ...

W. F. J. Evans; E. Puckrin

1999-01-01T23:59:59.000Z

355

Modeling the Effect of Chlorine Emissions on Ozone Levels over the Eastern United States  

Science Conference Proceedings (OSTI)

This paper presents model estimates of the effect of chlorine emissions on atmospheric ozone concentrations in the eastern United States. The model included anthropogenic molecular chlorine emissions, anthropogenic hypochlorous acid emissions ...

Golam Sarwar; Prakash V. Bhave

2007-07-01T23:59:59.000Z

356

A Chemiluminescent Analyzer for Stratospheric Measurements of the Ozone Concentration (FOZAN)  

Science Conference Proceedings (OSTI)

Within the framework of the Airborne Polar Experiment, a new ozone analyzer based on chemiluminescent technology has been developed for high-altitude measurements. The instrument was tested on board the M-55 Geophysica aircraft during some ...

V. Yushkov; A. Oulanovsky; N. Lechenuk; I. Roudakov; K. Arshinov; F. Tikhonov; L. Stefanutti; F. Ravegnani; U. Bonafé; T. Georgiadis

1999-10-01T23:59:59.000Z

357

Ozone Loss and Recovery and the Preconditioning of Upward Propagating Planetary Wave Activity  

Science Conference Proceedings (OSTI)

A mechanistic chemistry-dynamical model is used to evaluate the relative importance of radiative, photochemical, and dynamical feedbacks in communicating changes in lower stratospheric ozone to the circulation of the stratosphere and lower ...

John R. Albers; Terrence R. Nathan

358

Carbon Ionic Conductors for use in Novel Carbon-Ion Fuel Cells  

DOE Green Energy (OSTI)

Carbon-consuming fuel cells have many potential advantages, including increased efficiency and reduced pollution in power generation from coal. A large amount of work has already been done on coal fuel cells that utilize yttria-stabilized zirconium carbide as an oxygen-ion superionic membrane material. But high-temperature fuel cells utilizing yttria-stabilized zirconium require partial combustion of coal to carbon monoxide before final oxidation to carbon dioxide occurs via utilization of the oxygen- ion zirconia membrane. A carbon-ion superionic membrane material would enable an entirely new class of carbon fuel cell to be developed, one that would use coal directly as the fuel source, without any intervening combustion process. However, a superionic membrane material for carbon ions has not yet been found. Because no partial combustion of coal would be required, a carbon-ion superionic conductor would allow the direct conversion of coal to electricity and pure CO{sub 2} without the formation of gaseous pollutants. The objective of this research was to investigate ionic lanthanide carbides, which have an unusually high carbon-bond ionicity as potential superionic carbide-ion conductors. A first step in this process is the stabilization of these carbides in the cubic structure, and this stabilization has been achieved via the preparation of pseudobinary lanthanide carbides. The diffusion rates of carbon have been measured in these carbides as stabilized to preserve the high temperature cubic structure down to room temperature. To prepare these new compounds and measure these diffusion rates, a novel, oxide-based preparation method and a new C{sup 13}/C{sup 12} diffusion technique have been developed. The carbon diffusion rates in La{sup 0.5}Er{sup 0.5}C{sub 2}, Ce{sup 0.5}Er{sup 0.5}C{sub 2}, and La{sup 0.5}Y{sup 0.5}C{sub 2}, and Ce{sup 0.5}Tm0.5C{sub 2} modified by the addition of 5 wt %Be{sub 2}C, have been determined at temperatures from 850 C to 1150 C. The resulting diffusion constants as measured were all less than 10{sup -11} cm{sup 2}/sec, and therefore these compounds are not superionic. However, there remain a large number of potentially superionic pseudobinary lanthanide compounds and a number of alternate ionic carbides which might act as dopants to produce vacancies on the carbon-ion sublattice and thereby increase carbon-ion diffusion rates. The discovery of a superionic carbon conductor would usher in a truly revolutionary new coal technology, and could dramatically improve the way in which we generate electricity from coal. The work completed to date is a promising first step towards this end.

Franklin H. Cocks; W. Neal Simmons; Paul A. Klenk

2005-11-01T23:59:59.000Z

359

Carbon Sequestration Project Portfolio  

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

Home > Technologies > Carbon Storage > Reference Shelf > Project Portfolio Home > Technologies > Carbon Storage > Reference Shelf > Project Portfolio Carbon Storage 2011 Carbon Storage Project Portfolio Table of Contents CARBON STORAGE OVERVIEW Carbon Storage Program Contacts [PDF-26KB] Carbon Storage Projects National Map [PDF-169KB] State Projects Summary Table [PDF-39KB] Carbon Storage Program Structure [PDF-181KB] Selected Carbon Sequestration Program Papers and Publications The U.S. Department of Energy's R&D Program to Reduce Greenhouse Gas Emissions Through Beneficial Uses of Carbon Dioxide (2011) [PDF-3.3MB] Greenhouse Gas Science and Technology Carbon Capture and Sequestration: The U.S. Department of Energy's R&D Efforts to Characterize Opportunities for Deep Geologic Storage of Carbon Dioxide in Offshore Resources (2011) [PDF-445KB]

360

Photophysics of carbon nanotubes  

E-Print Network (OSTI)

This thesis reviews the recent advances made in optical studies of single-wall carbon nanotubes. Studying the electronic and vibrational properties of carbon nanotubes, we find that carbon nanotubes less than 1 nm in ...

Samsonidze, Georgii G

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Carbon Dioxide (CO2)  

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

Carbon Dioxide (CO2) Carbon Dioxide (CO2) Gateway Pages to Carbon Dioxide Data Modern records and ice core records back 2000 years 800,000 year records from ice cores Other...

362

Method of making carbon-carbon composites  

DOE Patents (OSTI)

A process for making 2D and 3D carbon-carbon composites having a combined high crystallinity, high strength, high modulus and high thermal and electrical conductivity. High-modulus/high-strength mesophase derived carbon fibers are woven into a suitable cloth. Layers of this easily graphitizible woven cloth are infiltrated with carbon material to form green composites. The carbonized composite is then impregnated several times with pitch by covering the composite with hot pitch under pressure. The composites are given a heat treatment between each impregnant step to crack up the infiltrated carbon and allow additional pitch to enter the microstructure during the next impregnation cycle. The impregnated composites are then given a final heat treatment in the range 2500.degree. to 3100.degree. C. to fully graphitize the fibers and the matrix carbon. The composites are then infiltrated with pyrolytic carbon by chemical vapor deposition in the range 1000.degree. C. to 1300.degree. C. at a reduced. pressure.

Engle, Glen B. (16716 Martincoit Rd., Poway, CA 92064)

1993-01-01T23:59:59.000Z

363

Carbon Nanotube Nanocomposites, Methods of Making Carbon ...  

This technology describes methods to fabricate supercapacitors using aligned carbon nanotubes that are decorated with metal oxide or nitride ...

364

DOE Carbon Sequestration Program  

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

Carbon Sequestration Program Charles E. Schmidt Carbon Sequestration Product Manager National Energy Technology Laboratory David J. Beecy Director, Office of Environmental Systems...

365

Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production  

E-Print Network (OSTI)

#12;Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward Zero Carbon Energy Production Toward

Narasayya, Vivek

366

Carbon Code Requirements for voluntary carbon sequestration projects  

E-Print Network (OSTI)

Woodland Carbon Code Requirements for voluntary carbon sequestration projects ® Version 1.2 July of group schemes 8 2.6 Monitoring 9 2.7 Carbon statements and reporting 9 2.8 Woodland Carbon Code trademark 10 3. Carbon sequestration 11 3.1 Units of carbon calculation 11 3.2 Carbon baseline 11 3.3 Carbon

367

Carbon Code Requirements for voluntary carbon sequestration projects  

E-Print Network (OSTI)

Woodland Carbon Code Requirements for voluntary carbon sequestration projects ® Version 1.1 July.6 Monitoring 8 2.7 Carbon statements and reporting 8 2.8 Woodland Carbon Code trademark 9 3. Carbon sequestration 10 3.1 Units of carbon calculation 10 3.2 Carbon baseline 10 3.3 Carbon leakage 11 3.4 Project

368

Global distributions of total ozone during January and February 1979 as determined from DMSP multichannel filter radiometer measurements  

Science Conference Proceedings (OSTI)

The multichannel filter radiometer instrument (MFR) was first flown on a Defense Meteorological Satellite Program (DMSP) Block 5D series satellite in 1977. Daily analyses of the global distribution of retrieved total ozone are presented for January and February 1979. The temporal and spatial averages and variability of ozone during this period are discussed. Retrieved total column ozone data derived from the MFR measurements for January 1979 are compared with preliminary SBUV measurements and with distributions of total ozone measured between 1958 and 1967.

Luther, F.M.; Ellis, J.S.; Lovill, J.E.; Sullivan, T.J.; Weichel, R.L.

1980-09-01T23:59:59.000Z

369

Aircraft Cabin Environmental Quality Sensors  

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

Aircraft Cabin Environmental Quality Sensors Aircraft Cabin Environmental Quality Sensors Title Aircraft Cabin Environmental Quality Sensors Publication Type Report Year of Publication 2004 Authors Gundel, Lara A., Thomas W. Kirchstetter, Michael Spears, and Douglas P. Sullivan Keywords carbon monoxide, ozone Abstract Identification of aircraft cabin environmental quality concerns for which sensors may be useful The highest priority environmental indicators identified are ozone and cabin air pressure, followed by carbon monoxide and carbon dioxide with moderate priority, and then relative humidity, airborne particles, and organic contaminants, including engine oil byproducts and pesticides. This list is based on the Congressional requirements and recent scientific literature, starting with information from recent studies (NAS/NRC, ASHRAE/Battelle), and continuing by seeking input from a variety of stakeholders.

370

Development of inexpensive continuous emission monitors for feedback control of combustion devices that minimize greenhouse gases, toxic emissions, and ozone damaging products  

SciTech Connect

This is the final report of a three-year, Laboratory Directed Research and Development project at the Los Alamos National Laboratory. Combustion is the major cause of poor urban air quality, of depletion of the ozone layer, and a major source of the greenhouse gas, carbon dioxide. Careful control of combustor conditions is important for minimizing the effects of combustion on the environment. The authors have developed sensitive, inexpensive continuous emission monitors that will assist in direct feedback of turbine power systems and provide assurance to the public and the operators of the facilities that their facility emissions lie within the accepted bounds. These include a robust solid-state Fourier transform spectrometer for rapid gas analysis, based on the use of ferroelectric liquid crystal technology, and an infrared helium-neon probe for real time measurement of combustor air-to-fuel ratios.

Funk, D.J.; Moore, D.S. [Los Alamos National Lab., NM (US); Mongia, R.K.; Tomita, E.; Hsu, F.K.; Talbot, L.; Dibble, R.W. [Univ. of California, Berkeley, CA (US); Lovett, J. [Pratt and Whitney (US); Yamazaki, Akira [Tsukuba Univ. (Japan)

1998-11-01T23:59:59.000Z

371

Membrane technologies for hydrogen and carbon monoxide recovery from residual gas streams. Tecnologías de membranas para la recuperación de hidrógeno y monóxido de carbono de gases residuales.  

E-Print Network (OSTI)

??This PhD thesis work is aimed to the separation and recovery of valuable gases from industrial residual gas streams by means of membrane technology. In… (more)

David, Oana Cristina

2012-01-01T23:59:59.000Z

372

Membrane technologies for hydrogen and carbon monoxide recovery from residual gas streams. Tecnologías de membranas para la recuperación de hidrógeno y monóxido de carbono de gases residuales.  

E-Print Network (OSTI)

??Esta tesis doctoral está enfocada hacia la separación y recuperación de hidrogeno y monóxido de carbono de efluentes gaseosos residuales procedentes de procesos industriales de… (more)

David, Oana Cristina

2012-01-01T23:59:59.000Z

373

Investigation of dispersed iron alloy catalysts in the carbon monoxide-hydrogen synthesis reaction. Progress report, August 1, 1980-July 31, 1981  

DOE Green Energy (OSTI)

The past year has seen completion of two major tasks in the research program: (1) a detailed study of the characterization of particle size in supported ..cap alpha..-Fe/sub 2/O/sub 3/ and related characterizations of the reduced metal with silica gel support; (2) a reaction study of a series of silica supported Fe-Ni, Fe-Co, Fe-Cu, Fe-K and the corresponding pure metals. Synthesis activity and selectivity were particular objectives of this work, and a particular correlation of the conversion dependence of selectivity and water-gas shift activity was observed. We feel this to be an important finding: the catalysts which are good water-gas shift catalysts are the ones which are inhibited during the synthesis. A mechanism of product inhibition by water formation has been proposed to explain the conversion dependence of selectivity.

Butt, J.B.; Schwartz, L.H.

1981-04-01T23:59:59.000Z

374

Composite carbon foam electrode  

DOE Patents (OSTI)

Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivty and power to system energy.

Mayer, Steven T. (San Leandro, CA); Pekala, Richard W. (Pleasant Hill, CA); Kaschmitter, James L. (Pleasanton, CA)

1997-01-01T23:59:59.000Z

375

Composite carbon foam electrode  

DOE Patents (OSTI)

Carbon aerogels used as a binder for granulated materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy. 1 fig.

Mayer, S.T.; Pekala, R.W.; Kaschmitter, J.L.

1997-05-06T23:59:59.000Z

376

Methanol Decomposition over Palladium Particles Supported on Silica: Role of Particle Size and Co-Feeding Carbon Dioxide on the Catalytic Properties  

Science Conference Proceedings (OSTI)

Monodisperse palladium particles of six distinct and controlled sizes between 4-16 nm were synthesized in a one-pot polyol process by varying the molar ratios of the two palladium precursors used, which contained palladium in different oxidation states. This difference permitted size control by regulation of the nucleation rate because low oxidation state metals ions nucleate quickly relative to high oxidation state ions. After immobilization of the Pd particles on silica by mild sonication, the catalysts were characterized by X-ray absorption spectroscopy and applied toward catalytic methanol decomposition. This reaction was determined as structure sensitive with the intrinsic activity (turnover frequency) increasing with increasing particle size. Moreover, observed catalytic deactivation was linked to product (carbon monoxide) poisoning. Co-feeding carbon dioxide caused the activity and the amount of deactivation to decrease substantially. A reaction mechanism based on the formation of the {pi}-bond between carbon and oxygen as the rate-limiting step is in agreement with antipathetic structure sensitivity and product poisoning by carbon monoxide.

Hokenek, Selma; Kuhn, John N. (USF)

2012-10-23T23:59:59.000Z

377

A Kalman-filter bias correction of ozone deterministic, ensemble-averaged, and probabilistic forecasts  

SciTech Connect

Kalman filtering (KF) is used to postprocess numerical-model output to estimate systematic errors in surface ozone forecasts. It is implemented with a recursive algorithm that updates its estimate of future ozone-concentration bias by using past forecasts and observations. KF performance is tested for three types of ozone forecasts: deterministic, ensemble-averaged, and probabilistic forecasts. Eight photochemical models were run for 56 days during summer 2004 over northeastern USA and southern Canada as part of the International Consortium for Atmospheric Research on Transport and Transformation New England Air Quality (AQ) Study. The raw and KF-corrected predictions are compared with ozone measurements from the Aerometric Information Retrieval Now data set, which includes roughly 360 surface stations. The completeness of the data set allowed a thorough sensitivity test of key KF parameters. It is found that the KF improves forecasts of ozone-concentration magnitude and the ability to predict rare events, both for deterministic and ensemble-averaged forecasts. It also improves the ability to predict the daily maximum ozone concentration, and reduces the time lag between the forecast and observed maxima. For this case study, KF considerably improves the predictive skill of probabilistic forecasts of ozone concentration greater than thresholds of 10 to 50 ppbv, but it degrades it for thresholds of 70 to 90 ppbv. Moreover, KF considerably reduces probabilistic forecast bias. The significance of KF postprocessing and ensemble-averaging is that they are both effective for real-time AQ forecasting. KF reduces systematic errors, whereas ensemble-averaging reduces random errors. When combined they produce the best overall forecast.

Monache, L D; Grell, G A; McKeen, S; Wilczak, J; Pagowski, M O; Peckham, S; Stull, R; McHenry, J; McQueen, J

2006-03-20T23:59:59.000Z

378

K. Toyota et al.: 3-D modeling of boundary-layer bromine and ozone in the Arctic (Supplement) 1 Supplement to "Analysis of reactive bromine production and ozone  

E-Print Network (OSTI)

K. Toyota et al.: 3-D modeling of boundary-layer bromine and ozone in the Arctic (Supplement) 1 3-D simulations with GEM-AQ: Inference from synoptic-scale patterns" K. Toyota1,2 , J. C. McConnell1. Toyota (kenjiro.toyota@ec.gc.ca) scale forcing resolved well at the grid resolution used in the present

Meskhidze, Nicholas

379

The Woodland Carbon Code  

E-Print Network (OSTI)

The Woodland Carbon Code While society must continue to make every effort to reduce greenhouse gas a role by removing carbon dioxide from the atmosphere. The potential of woodlands to soak up carbon to help compensate for their carbon emissions. But before investing in such projects, people want to know

380

Mechanomutable Carbon Nanotube Arrays  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2010 TMS Annual Meeting & Exhibition. Symposium , Polymer Nanocomposites. Presentation Title, Mechanomutable Carbon ...

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Acetylenic carbon allotrope  

DOE Patents (OSTI)

A fourth allotrope of carbon, an acetylenic carbon allotrope, is described. The acetylenic carbon allotropes of the present invention are more soluble than the other known carbon allotropes in many common organic solvents and possesses other desirable characteristics, e.g. high electron density, ability to burn cleanly, and electrical conductive properties. Many uses for this fourth allotrope are described herein.

Lagow, Richard J. (6204 Shadow Mountain Dr., Austin, TX 78731)

1998-01-01T23:59:59.000Z

382

Acetylenic carbon allotrope  

DOE Patents (OSTI)

A fourth allotrope of carbon, an acetylenic carbon allotrope, is described. The acetylenic carbon allotropes of the present invention are more soluble than the other known carbon allotropes in many common organic solvents and possesses other desirable characteristics, e.g. high electron density, ability to burn cleanly, and electrical conductive properties. Many uses for this fourth allotrope are described herein. 17 figs.

Lagow, R.J.

1998-02-10T23:59:59.000Z

383

Acetylenic carbon allotrope  

DOE Patents (OSTI)

A fourth allotrope of carbon, an acetylenic carbon allotrope, is described. The acetylenic carbon allotropes of the present invention are more soluble than the other known carbon allotropes in many common organic solvents and possesses other desirable characteristics, e.g. high electron density, ability to burn cleanly, and electrical conductive properties. Many uses for this fourth allotrope are described herein.

Lagow, Richard J. (6204 Shadow Mountain Dr., Austin, TX 78731)

1999-01-01T23:59:59.000Z

384

Incorporating TOMS Ozone Measurements into the Prediction of the Washington, D.C., Winter Storm during 24–25 January 2000  

Science Conference Proceedings (OSTI)

In this study, a methodology is proposed for incorporating total column ozone data from the Total Ozone Mapping Spectrometer (TOMS) into the initial conditions of a mesoscale prediction model. Based on the strong correlation between vertical mean ...

Kun-Il Jang; X. Zou; M. S. F. V. De Pondeca; M. Shapiro; C. Davis; A. Krueger

2003-06-01T23:59:59.000Z

385

Observation-Based Assessment of the Impact of Nitrogen Oxides Emissions Reductions on Ozone Air Quality over the Eastern United States  

Science Conference Proceedings (OSTI)

Ozone is produced by chemical interactions involving nitrogen oxides (NOx) and volatile organic compounds in the presence of sunlight. At high concentrations, ground-level ozone has been shown to be harmful to human health and to the environment. ...

Edith Gégo; P. Steven Porter; Alice Gilliland; S. Trivikrama Rao

2007-07-01T23:59:59.000Z

386

Applications of the Regional Atmospheric Modeling System (RAMS) to Provide Input to Photochemical Grid Models for the Lake Michigan Ozone Study (LMOS)  

Science Conference Proceedings (OSTI)

In spite of ongoing control measures, episodes of elevated boundary layer ozone in violation of national ambient air quality standards continue to occur in the Lake Michigan region. The Lake Michigan Ozone Study is a multiyear effort that ...

Walter A. Lyons; Craig J. Tremback; Roger A. Pielke

1995-08-01T23:59:59.000Z

387

EFFICIENCY OF OZONE PRODUCTION IN THE HOUSTON PLUME.  

SciTech Connect

Ozone levels observed during a field campaign in Houston were significantly higher than that observed in Phoenix or Philadelphia. An examination of the slope of O{sub x} versus NO{sub z} in the urban plumes shows that NO{sub x} is used 2 to 3 times more efficiently in Houston as compared with Phoenix and Philadelphia. Representative values of OPEx are 7-12, 3, and 4, in Houston, Phoenix, and Philadelphia. Aircraft observations have been used to calculate P(O{sub 3})/P(NO{sub z}). Values in Houston are significantly higher than in Phoenix and Philadelphia. We show that P(O{sub 3})/P(NO{sub z}) is proportional to a VOC/NO{sub 2}-OH reactivity ratio. High values of P(O{sub 3})/P(NO{sub z}) in Houston are due to emissions of reactive olefins from the ship channel region. It is significant that high values of P(O{sub 3})/P(NO{sub z}) occur at NO{sub x} levels up to several 10's of ppb. Not only is the chemistry efficient but it will be long lasting. The occurrence of high NO{sub x} and high OPEx is fostered by the co-location of VOC and NO{sub x} sources in the Houston industrial areas.

KLEINMAN,L.I.; DAUM,P.H.; BRECHTEL,F.; LEE,Y.N.; NUNNERMACKER,L.J.; SPRINGSTON,S.R.; WEINSTEIN-LLOYD,J.

2001-10-01T23:59:59.000Z

388

Essays on the Impact of Climate Change and Building Codes on Energy Consumption and the Impact of Ozone on Crop Yield  

E-Print Network (OSTI)

15.2 Crop yield14 Impact of ozone on crop yield 15 Data 15.1 Ozonecrop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Aroonruengsawat, Anin

2010-01-01T23:59:59.000Z

389

Glossary: Energy-Related Carbon Emissions  

U.S. Energy Information Administration (EIA)

Carbon Sequestration: The fixation of atmospheric carbon dioxide in a carbon sink through biological or physical processes. Carbon Sink: ...

390

Regional Carbon Sequestration Partnerships | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science & Innovation Carbon Capture and Storage Regional Carbon Sequestration Partnerships Regional Carbon Sequestration Partnerships DOE's Regional Carbon Sequestration...

391

TSD- aa Trends in Measured 1-h Ozone Concentrations over the OTR  

E-Print Network (OSTI)

Trends in raw and meteorologically adjusted 1-hour ozone were calculated at several AQS monitoring sites in the Northeast. A summary of the analysis is provided below, and a detailed description of the met-adjustment procedure is outlined in Milanchus et al. (1998) and references contained including those related to the Kolmogorov-Zurbenko (KZ) method used in this analysis to estimate trends. Data Ozone time series were obtained at many monitoring sites in the Northeastern United States. From these data, log of daily maximum one hour ozone were calculated. In addition, several meteorological variables were obtained from National Weather service stations in the Northeast. These included surface temperature, dew point and specific humidity with dew point depression being calculated. Daily maximum values were calculated for each of the meteorological variable times series. The time span of data considered for both ozone and meteorological variables was from 1985 to 2005. In addition, this analysis focused on the ozone season (April 15 through October 15) of each year.

Modeling Domain

2007-01-01T23:59:59.000Z

392

Application of dynamic linear regression to improve the skill of ensemble-based deterministic ozone forecasts  

SciTech Connect

Forecasts from seven air quality models and surface ozone data collected over the eastern USA and southern Canada during July and August 2004 provide a unique opportunity to assess benefits of ensemble-based ozone forecasting and devise methods to improve ozone forecasts. In this investigation, past forecasts from the ensemble of models and hourly surface ozone measurements at over 350 sites are used to issue deterministic 24-h forecasts using a method based on dynamic linear regression. Forecasts of hourly ozone concentrations as well as maximum daily 8-h and 1-h averaged concentrations are considered. It is shown that the forecasts issued with the application of this method have reduced bias and root mean square error and better overall performance scores than any of the ensemble members and the ensemble average. Performance of the method is similar to another method based on linear regression described previously by Pagowski et al., but unlike the latter, the current method does not require measurements from multiple monitors since it operates on individual time series. Improvement in the forecasts can be easily implemented and requires minimal computational cost.

Pagowski, M O; Grell, G A; Devenyi, D; Peckham, S E; McKeen, S A; Gong, W; Monache, L D; McHenry, J N; McQueen, J; Lee, P

2006-02-02T23:59:59.000Z

393

Variational Assimilation of GOME Total-Column Ozone Satellite Data in a 2D Latitude–Longitude Tracer-Transport Model  

Science Conference Proceedings (OSTI)

A four-dimensional data-assimilation method is described to derive synoptic ozone fields from total-column ozone satellite measurements. The ozone columns are advected by a 2D tracer-transport model, using ECMWF wind fields at a single pressure ...

H. J. Eskes; A. J. M. Piters; P. F. Levelt; M. A. F. Allaart; H. M. Kelder

1999-10-01T23:59:59.000Z

394

Electron Microscopy of Carbon Nanotube Composites  

Science Conference Proceedings (OSTI)

Electron Microscopy of Carbon Nanotube Composites. Summary: Carbon nanomaterials such as carbon nanotubes (CNTs ...

2013-07-01T23:59:59.000Z

395

Analysis of an Ozone Episode during the San Diego Air Quality Study: The Significance of Transport Aloft  

Science Conference Proceedings (OSTI)

San Diego is subject to transport of ozone and precursors from the Los Angeles area, 170 km to the northwest, as well as to high ozone concentrations from local emissions. The San Diego Air Quality Study was conducted during the summer of 1989. ...

Virginia Bigler-Engler; Hal W. Brown

1995-08-01T23:59:59.000Z

396

Repeatability of the Seasonal Variations of Ozone near the Mesopause from Observations of the 11.072-GHz Line  

Science Conference Proceedings (OSTI)

Ground-based observations of the 11.072-GHz line of ozone were made from January 2008 through the middle of September 2011 to estimate the maximum in the nighttime ozone in the upper mesosphere at an altitude of about 95 km for a region centered ...

A. E. E. Rogers; P. Erickson; V. L. Fish; J. Kittredge; S. Danford; J. M. Marr; M. B. Arndt; J. Sarabia; D. Costa; S. K. May

2012-10-01T23:59:59.000Z

397

Uncertainties in Predicted Ozone Concentrations Due to Input Uncertainties for the UAM-V Photochemical Grid Model  

Science Conference Proceedings (OSTI)

Based on studies of ozone episodes in the eastern United States using the photochemical grid model, UAM-V, regulatory agencies have made decisions concerning emissions controls. This project analyzes effects of uncertainties in UAM-V input variables (emissions, initial and boundary conditions, meteorological variables, and chemical reactions) on uncertainties in UAM-V ozone predictions for the July 1995 episode.

2000-11-06T23:59:59.000Z

398

Seasonal and Diurnal Variations of Ozone near the Mesopause from Observations of the 11.072-GHz Line  

Science Conference Proceedings (OSTI)

Ground-based observations of the 11.072-GHz line of ozone were made from January 2008 through January 2009. These observations provide an estimate of the diurnal and seasonal variations of ozone in the mesopause region. The 11-GHz line is more ...

A. E. E. Rogers; M. Lekberg; P. Pratap

2009-10-01T23:59:59.000Z

399

Michael Heine, SGL Group - The Carbon Company, Carbon Fibers...  

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

Carbon Fibers in Lightweight Systems for Wind Energy and Automotive Applications: Availability and Challenges for the Future Michael Heine, SGL Group - The Carbon Company, Carbon...

400

Carbon Efficiency, Carbon Reduction Potential, and Economic Developmen...  

Open Energy Info (EERE)

Carbon Reduction Potential, and Economic Development in the People's Republic of China Jump to: navigation, search Tool Summary Name: Carbon Efficiency, Carbon Reduction...

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Carbon Ion Pump for Carbon Dioxide Removal  

coal fired power plants; oil or gas fired power plants; cement production; bio-fuel combustion; Separation of carbon dioxide from other combustion ...

402

Carbon fuel cells with carbon corrosion suppression  

Science Conference Proceedings (OSTI)

An electrochemical cell apparatus that can operate as either a fuel cell or a battery includes a cathode compartment, an anode compartment operatively connected to the cathode compartment, and a carbon fuel cell section connected to the anode compartment and the cathode compartment. An effusion plate is operatively positioned adjacent the anode compartment or the cathode compartment. The effusion plate allows passage of carbon dioxide. Carbon dioxide exhaust channels are operatively positioned in the electrochemical cell to direct the carbon dioxide from the electrochemical cell.

Cooper, John F. (Oakland, CA)

2012-04-10T23:59:59.000Z

403

Carbon Management and Carbon Dioxide Reduction  

Science Conference Proceedings (OSTI)

Cost-Effective Gas Stream Component Analysis Techniques and Strategies for Carbon Capture Systems from Oxy-Fuel Combustion (An Overview).

404

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.  

Science Conference Proceedings (OSTI)

We used Proton Transfer Reaction - Mass Spectrometry (PTR-MS) and conventional sampling methods to monitor and identify trace level organic pollutants formed in heterogeneous reactions between ozone and HVAC filters in real time. Experiments were carried out using a bench-scale flow tube reactor operating with dry air and humidified air (50% RH), at realistically high ozone concentrations (150 ppbv). We explored different filter media (i.e., fiberglass and cotton/polyester blends) and different particle loadings (i.e., clean filter and filters loaded with particles for 3 months at the Lawrence Berkeley National Laboratory and the Port of Oakland, CA). Detailed emission dynamics of very low levels of certain organic pollutants from filter media upon ozone exposure in the presence of moisture have been obtained and analyzed.

Destaillats, Hugo; Chen, Wenhao; Apte, Michael; Li, Nuan; Spears, Michael; Almosni, Jérémie; Zhang, Jianshun (Jensen); Fisk, William J.

2009-09-09T23:59:59.000Z

405

Optical constants of evaporation-deposited silicon monoxide films in the 7.1–800 eV photon energy range  

Science Conference Proceedings (OSTI)

The transmittance of silicon monoxide films prepared by thermal evaporation was measured from 7.1 to 800 eV and used to determine the optical constants of the material. SiO filmsdeposited onto C-coated microgrids in ultrahigh vacuum conditions were measured in situ from 7.1 to 23.1 eV. Grid-supported SiO filmsdeposited in high vacuum conditions were characterized ex situ from 28.5 to 800 eV. At each photon energy

Mónica Fernández-Perea; Manuela Vidal-Dasilva; Juan I. Larruquert; José A. Aznárez; José A. Méndez; Eric Gullikson; Andy Aquila; Regina Soufli

2009-01-01T23:59:59.000Z

406

Study of the effectiveness of the Cl/sub x/ catalytic ozone loss mechanisms  

Science Conference Proceedings (OSTI)

The importance of catalytic mechanisms involving chlorine species for destroying stratospheric ozone is now well recognized. A number of chlorinated halocarbons have been suggested as anthropogenic sources of stratospheric chlorine. In particular the potential impacts on stratospheric ozone of surface release of CF/sub 2/CL/sub 2/, CFCl/sub 3/ and CH/sub 3/CCl/sub 3/ have been studied extensively previously. With the current understanding of atmospheric photochemical processes, there are now at least three other ozone destroying catalytic cycles involving chlorine species in addition to the well known Cl-C10 catalytic cycle that are of varying importance in the stratosphere. Because of the differences in the vertical distributions of the concentration of the relevant chemical species the most effective altitudes for each cycle are different. Since an individual halocarbon releases chlorine atoms over a range of different altitudes in the stratosphere, its impact on stratospheric ozone must be due to the combined effect of each of these cycles. In this study, a comparison is made of the relative roles of these catalytic cycles for destroying stratospheric ozone when emissions for various halocarbons are considered. It is concluded that there are at least four catalytic cycles for odd oxygen destruction involving chlorine species. The relative efficiency of these cycles vary significantly with altitude. Changes in the ozone vertical distribution from various halocarbon perturbations were found to be different in shape. This was due to the differences in the altitude range of inorganic chlorine release resulting from halocarbon destruction and to the differences in relative catalytic cycle efficiencies.

Wuebbles, D.J.; Chang, J.S.

1980-09-01T23:59:59.000Z

407

Metallic carbon materials  

DOE Patents (OSTI)

Novel metallic forms of planar carbon are described, as well as methods of designing and making them. Nonhexagonal arrangements of carbon are introduced into a graphite carbon network essentially without destroying the planar structure. Specifically a form of carbon comprising primarily pentagons and heptagons, and having a large density of states at the Fermi level is described. Other arrangements of pentagons and heptagons that include some hexagons, and structures incorporating squares and octagons are additionally disclosed. Reducing the bond angle symmetry associated with a hexagonal arrangement of carbons increases the likelihood that the carbon material will have a metallic electron structure.

Cohen, Marvin Lou (Berkeley, CA); Crespi, Vincent Henry (Darien, IL); Louie, Steven Gwon Sheng (Berkeley, CA); Zettl, Alexander Karlwalter (Kensington, CA)

1999-01-01T23:59:59.000Z

408

Towards large eddy simulations of flame extinction and ...  

Science Conference Proceedings (OSTI)

... products of incomplete combustion (carbon monoxide, unburnt hydro- carbons, hydrogen ... to play a role in the net emission of car- bon monoxide ...

2007-10-03T23:59:59.000Z

409

NATURAL GAS VARIABILITY IN CALIFORNIA: ENVIRONMENTAL IMPACTS AND DEVICE PERFORMANCE EXPERIMENTAL EVALUATION OF POLLUTANT EMISSIONS FROM RESIDENTIAL APPLIANCES  

E-Print Network (OSTI)

emission factors for carbon monoxide, nitrogen oxides,  nitrogen dioxide, emission factors were determined for carbon monoxide, nitrogen oxides, nitrogen dioxide, 

Singer, Brett C.

2010-01-01T23:59:59.000Z

410

NETL: Regional Carbon Sequestration Partnerships  

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

RCSP Carbon Storage Regional Carbon Sequestration Partnerships In 2003, the U.S. Department of Energy (DOE) awarded cooperative agreements to seven Regional Carbon Sequestration...

411

Carbon Nanostructure-Based Sensors  

E-Print Network (OSTI)

Control of Single-Walled Carbon Nanotube Functionalization.M. S. Characterizing carbon nanotube samples with resonancewith a Single-Walled Carbon Nanotube Capacitor. Science

Sarkar, Tapan

2012-01-01T23:59:59.000Z

412

Secondary Pollutants from Ozone Reaction with Ventilation Filters and Degradation of Filter Media Additives  

SciTech Connect

Prior research suggests that chemical processes taking place on the surface of particle filters employed in buildings may lead to the formation of harmful secondary byproducts. We investigated ozone reactions with fiberglass, polyester, cotton/polyester and polyolefin filter media, as well as hydrolysis of filter media additives. Studies were carried out on unused media, and on filters that were installed for 3 months in buildings at two different locations in the San Francisco Bay Area. Specimens from each filter media were exposed to {approx}150 ppbv ozone in a flow tube under a constant flow of dry or humidified air (50percent RH). Ozone breakthrough was recorded for each sample over periods of {approx}1000 min; the ozone uptake rate was calculated for an initial transient period and for steady-state conditions. While ozone uptake was observed in all cases, we did not observe significant differences in the uptake rate and capacity for the various types of filter media tested. Most experiments were performed at an airflow rate of 1.3 L/min (face velocity = 0.013 m/s), and a few tests were also run at higher rates (8 to 10 L/min). Formaldehyde and acetaldehyde, two oxidation byproducts, were quantified downstream of each sample. Those aldehydes (m/z 31 and 45) and other volatile byproducts (m/z 57, 59, 61 and 101) were also detected in real-time using Proton-Transfer Reaction - Mass Spectrometry (PTR-MS). Low-ppbv byproduct emissions were consistently higher under humidified air than under dry conditions, and were higher when the filters were loaded with particles, as compared with unused filters. No significant differences were observed when ozone reacted over various types of filter media. Fiberglass filters heavily coated with impaction oil (tackifier) showed higher formaldehyde emissions than other samples. Those emissions were particularly high in the case of used filters, and were observed even in the absence of ozone, suggesting that hydrolysis of additives, rather than ozonolysis, is the main formaldehyde source in those filters. Emission rates of formaldehyde and acetaldehyde were not found to be large enough to substantially increase indoor concentrations in typical building scenarios. Nevertheless, ozone reactions on HVAC filters cannot be ignored as a source of low levels of indoor irritants.

Destaillats, Hugo; Chen, Wenhao; Apte, Michael; Li, Nuan; Spears, Michael; Almosni, Jérémie; Brunner, Gregory; Zhang, Jianshun (Jensen); Fisk, William J.

2011-05-01T23:59:59.000Z

413

Carbon emissions and sequestration in forests: Case studies from seven developing countries  

SciTech Connect

Deforestation in Brazilian Amazonia in 1990 was releasing approximately 281--282 X 10{sup 6} metric tons (MT) of carbon on conversion to a landscape of agriculture, productive pasture, degraded pasture, secondary forest and regenerated forest in the proportions corresponding to the equilibrium condition implied by current land-use patterns. Emissions are expressed as committed carbon,'' or the carbon released over a period of years as the carbon stock in each hectare deforested approaches a new equilibrium in the landscape that replaces the original forest. To the extent that deforestation rates have remained constant, current releases from the areas deforested in previous years will be equal to the future releases from the areas being cleared now. Considering the quantities of carbon dioxide, carbon monoxide, methane, nitrous oxide, NO{sub x} and non-methane hydrocarbons released raises the impact by 22--37%. The relative impact on the greenhouse effect of each gas is based on the Intergovernmental Panel on Climate Change (IPCC) calculations over a 20-year time period (including indirect effects). The six gases considered have a combined global warming impact equivalent to 343 to 386 million MT of C0{sub 2}-equivalent carbon, depending on assumptions regarding the release of methane and other gases from the various sources such as burning and termites. These emissions represent 7--8 times the 50 million MT annual carbon release from Brazil's use of fossil fuels, but bring little benefit to the country. Stopping deforestation in Brazil would prevent as much greenhouse emission as tripling the fuel efficiency of all the automobiles in the world. The relatively cheap measures needed to contain deforestation, together with the many complementary benefits of doing so, make this the first priority for funds intended to slow global warming.

Makundi, W.; Sathaye, J. (eds.) (Lawrence Berkeley Lab., CA (United States)); Fearnside, P.M. (Instituto Nacional de Pesquisas da Amazonia (INPA), Manaus, AM (Brazil). Departmento de Ecologia)

1992-08-01T23:59:59.000Z

414

Method of making carbon-carbon composites  

DOE Patents (OSTI)

A process for making a carbon-carbon composite having a combination of high crystallinity, high strength, high modulus and high thermal and electrical conductivity. High-modulus/high-strength mesophase derived carbon fibers are woven into a suitable cloth. Layers of this easily graphitizable woven cloth are covered with petroleum or coal tar pitch and pressed at a temperature a few degrees above the softening point of the pitch to form a green laminated composite. The green composite is restrained in a suitable fixture and heated slowly to carbonize the pitch binder. The carbonized composite is then impregnated several times with pitch by covering the composite with hot pitch under pressure. The composites are given a heat treatment between each impregnation step to crack up the infiltrated carbon and allow additional pitch to enter the microstructure during the next impregnation cycle. The impregnated composites are then given a final heat treatment in the range 2500.degree. to 3000.degree. C. to fully graphitize the fibers and the matrix carbon. The composites are then infiltrated with pyrolytic carbon by chemical vapor deposition in the range 1000.degree. to 1300.degree. C. at a reduced pressure for approximately one hundred and fifty (150) hours.

Engle, Glen B. (16716 Martincoit Rd., Poway, CA 92064)

1991-01-01T23:59:59.000Z

415

Terrestrial Carbon Management  

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

Terrestrial Carbon Management Data Sets and Analyses Terrestrial Carbon Management Data Sets and Analyses Carbon Accumulation with Cropland Management Influence of Agricultural Management on Soil Organic Carbon: A Compendium and Assessment of Canadian Studies (VandenBygaart et al., Agriculture and Agri-Food Canada) Soil Carbon Sequestration by Tillage and Crop Rotation: A Global Data Analysis (West and Post, Oak Ridge National Laboratory) Preliminary Estimates of the Potential for Carbon Mitigation in European Soils Through No-Till Farming (Smith et al., University of Aberdeen, United Kingdom) Potential for Carbon Sequestration in European Soils: Preliminary Estimates for Five Scenarios Using Results from Long-Term Experiments (Smith et al., University of Aberdeen, United Kingdom) Carbon Accumulation with Grassland Management

416

Quantifying Carbon Cycle Feedbacks  

Science Conference Proceedings (OSTI)

Perturbations to the carbon cycle could constitute large feedbacks on future changes in atmospheric CO2 concentration and climate. This paper demonstrates how carbon cycle feedback can be expressed in formally similar ways to climate feedback, ...

J. M. Gregory; C. D. Jones; P. Cadule; P. Friedlingstein

2009-10-01T23:59:59.000Z

417

Carbon nanotube nanoelectrode arrays  

DOE Patents (OSTI)

The present invention relates to microelectode arrays (MEAs), and more particularly to carbon nanotube nanoelectrode arrays (CNT-NEAs) for chemical and biological sensing, and methods of use. A nanoelectrode array includes a carbon nanotube material comprising an array of substantially linear carbon nanotubes each having a proximal end and a distal end, the proximal end of the carbon nanotubes are attached to a catalyst substrate material so as to form the array with a pre-determined site density, wherein the carbon nanotubes are aligned with respect to one another within the array; an electrically insulating layer on the surface of the carbon nanotube material, whereby the distal end of the carbon nanotubes extend beyond the electrically insulating layer; a second adhesive electrically insulating layer on the surface of the electrically insulating layer, whereby the distal end of the carbon nanotubes extend beyond the second adhesive electrically insulating layer; and a metal wire attached to the catalyst substrate material.

Ren, Zhifeng (Newton, MA); Lin, Yuehe (Richland, WA); Yantasee, Wassana (Richland, WA); Liu, Guodong (Fargo, ND); Lu, Fang (Burlingame, CA); Tu, Yi (Camarillo, CA)

2008-11-18T23:59:59.000Z

418

NETL: Carbon Storage Archive  

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

2013 Carbon Storage Newsletter PDF-571KB has been posted. 08.27.2013 Publications August 2013 Carbon Storage Newsletter PDF-1.1MB has been posted. 08.15.2013 News Ancient...

419

Carbon Footprint and Carbon Deficit Analysis of Iron and Steel ...  

Science Conference Proceedings (OSTI)

Symposium, Energy Technologies and Carbon Dioxide Management. Presentation Title ... Study on Capture, Recovery and Utilization of Carbon Dioxide.

420

Carbon Fibers and Carbon Nanotubes - Programmaster.org  

Science Conference Proceedings (OSTI)

Feb 17, 2010 ... Polymer Nanocomposites: Carbon Fibers and Carbon Nanotubes Sponsored by: The Minerals, Metals and Materials Society Program ...

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Carbon Dioxide Compression  

Science Conference Proceedings (OSTI)

Page 1. © C opyright 2009 Carbon Dioxide Compression DOE – EPRI – NIST ... Greenhouse gas sequestration Page 5. 5 © C opyright 2009 ...

2013-04-22T23:59:59.000Z

422

Carbon Mitigation Measurements  

Science Conference Proceedings (OSTI)

... sustainable technologies such as CO 2 capture and sequestration (CCS ... property diagnostic tools (under realistic conditions for carbon capture from ...

2012-10-04T23:59:59.000Z

423

Big Sky Carbon Atlas  

DOE Data Explorer (OSTI)

(Acknowledgment to the Big Sky Carbon Sequestration Partnership (BSCSP); see home page at http://www.bigskyco2.org/)

Carbon Sequestration Partnership, Big Sky [BSCSP; ,

424

Electrocatalysts on Carbon Nanoparticles  

Carbon nanostructures offer extremely high surface areas and so are attractive candidates to support dispersed catalysts. These nanostructures, ...

425

Low Carbon Fuel Standards  

E-Print Network (OSTI)

land-use changes. When biofuel production increases, land ison carbon releases. If biofuel production does not result in

Sperling, Dan; Yeh, Sonia

2009-01-01T23:59:59.000Z

426

Atmospheric Environment 39 (2005) 28292838 Diurnal and seasonal cycles of ozone precursors observed from  

E-Print Network (OSTI)

characteristics. Ethane and propane, largely originated from leakage of natural gas or liquefied petroleum gases); Non-methane hydrocarbons (NMHCs); Liquefied petroleum gases (LPG); Temperature inversion ARTICLE) and nitrogen oxides (NO+NO2 ¼ NOx), ozone is photochemically pro- duced and can accumulate to hazardous levels

Wingenter, Oliver W.

427

Comprehensive Overview of Scientific Findings from Major Ozone Field Studies in North America and Europe  

Science Conference Proceedings (OSTI)

During the past decade, nearly $600 million were invested in more than thirty major field studies in North America and Europe examining tropospheric ozone chemistry, meteorology, precursor emissions, and modeling. This report describes a selection of 16 field research programs conducted under a wide range of geographical and climatological conditions in North America and Europe.

1999-12-13T23:59:59.000Z

428

Three-Dimensional Tracer Structure and Behavior as Simulated in Two Ozone Precursor Experiments  

Science Conference Proceedings (OSTI)

The GFDL 11-level general circulation/tracer model is used for two experiments designed to prepare the way for a self-consistent model of atmospheric ozone. The first experiment invokes a very simple condition at the top model level, an ...

J. D. Mahlman; H. Levy; W. J. Moxim

1980-03-01T23:59:59.000Z

429

Radiative Impact of Ozone on Temperature Predictability in a Coupled Chemistry–Dynamics Data Assimilation System  

Science Conference Proceedings (OSTI)

The objective of this study is to investigate the impact on temperature forecast of using ozone analyses for the computation of heating rates in a three-dimensional variational data assimilation (3D-Var) system with a coupled model. The system is ...

J. de Grandpré; R. Ménard; Y. J. Rochon; C. Charette; S. Chabrillat; A. Robichaud

2009-02-01T23:59:59.000Z

430

A Small High-Sensitivity, Medium-Response Ozone Detector Suitable for Measurements from Light Aircraft  

Science Conference Proceedings (OSTI)

An instrument for tropospheric O3 measurements based on the chemiluminescent reaction between nitric oxide and ozone is described. It was designed as part of a larger instrument package for simultaneous measurements of NO, NO2, NOy and O3 using ...

B. A. Ridley; F. E. Grahek; J. G. Walega

1992-04-01T23:59:59.000Z

431

A Preliminary Synthesis of Modeled Climate Change Impacts on U.S. Regional Ozone Concentrations  

Science Conference Proceedings (OSTI)

This paper provides a synthesis of results that have emerged from recent modeling studies of the potential sensitivity of U.S. regional ozone (O3) concentrations to global climate change (ca. 2050). This research has been carried out under the ...

C. P. Weaver; E. Cooter; R. Gilliam; A. Gilliland; A. Grambsch; D. Grano; B. Hemming; S. W. Hunt; C. Nolte; D. A. Winner; X-Z. Liang; J. Zhu; M. Caughey; K. Kunkel; J-T. Lin; Z. Tao; A. Williams; D. J. Wuebbles; P. J. Adams; J. P. Dawson; P. Amar; S. He; J. Avise; J. Chen; R. C. Cohen; A. H. Goldstein; R. A. Harley; A. L. Steiner; S. Tonse; A. Guenther; J-F. Lamarque; C. Wiedinmyer; W. I. Gustafson; L. R. Leung; C. Hogrefe; H-C. Huang; D. J. Jacob; L. J. Mickley; S. Wu; P. L. Kinney; B. Lamb; N. K. Larkin; D. McKenzie; K-J. Liao; K. Manomaiphiboon; A. G. Russell; E. Tagaris; B. H. Lynn; C. Mass; E. Salathé; S. M. O'neill; S. N. Pandis; P. N. Racherla; C. Rosenzweig; J-H. Woo

2009-12-01T23:59:59.000Z

432

Longitudinally Dependent Ozone Increase in the Antarctic Polar Vortex Revealed by Balloon and Satellite Observations  

Science Conference Proceedings (OSTI)

The horizontal structure of processes causing increases in ozone in the Antarctic polar vortex was examined using data measured in 2003 from an ozonesonde observation campaign at Syowa Station (39.6°E, 69.0°S) and from the Improved Limb ...

K. Sato; Y. Tomikawa; G. Hashida; T. Yamanouchi; H. Nakajima; T. Sugita

2009-06-01T23:59:59.000Z

433

Correlation of Ozone and Meteorology with Hydrogen Peroxide in Urban and Rural Regions of North Carolina  

Science Conference Proceedings (OSTI)

Gas-phase hydrogen peroxide (H2O2) and ozone (O3) along With other trace gases and meteorology were monitored in two distinct regimes of high- and low-NOx (urban and rural) areas in North Carolina during the summer of 1991 as part of the Southern ...

Viney P. Aneja; Mita Das

1995-08-01T23:59:59.000Z

434

An investigation of the processes controlling ozone in the upper stratosphere  

Science Conference Proceedings (OSTI)

Photolysis of vibrationally excited oxygen produced by ultraviolet photolysis of ozone in the upper stratosphere is incorporated into the Lawrence Livermore National Laboratory 2-D zonally averaged chemical-radiative-transport model of the troposphere and stratosphere. The importance of this potential contributor of odd oxygen to the concentration of ozone is evaluated based upon recent information on vibrational distributions of excited oxygen and upon preliminary studies of energy transfer from the excited oxygen. When the energy transfer rate constants of previous work are assumed, increases in model ozone concentrations of up to 40 percent in the upper stratosphere are found, and the ozone concentrations of the model agree with measurements, including data from the Upper Atmosphere Research Satellite. However, the increase is about 0.4 percent when the larger energy transfer rate constants suggested by more recent experimental work are applied in the model. This indicates the importance of obtaining detailed information on vibrationally excited oxygen properties, particularly the state-specific energy transfer rate constants, to evaluation of tills precess for stratospheric modeling.

Patten, K.O. Jr.; Connell, P.S.; Kinnison, D.E.; Wuebbles, D.J. [Lawrence Livermore National Lab., CA (United States); Waters, J.; Froidevaux, L. [Jet Propulsion Lab., Pasadena, CA (United States); Slanger, T.G. [SRI International, Menlo Park, CA (United States)

1992-07-05T23:59:59.000Z

435

Numerical Experiments with a General Circulation Model Concerning the Distribution of Ozone in the Stratosphere  

Science Conference Proceedings (OSTI)

Two experiments were performed with a nine-layer quasi-geostrophic spectral model to simulate the distribution of ozone below 60 km. Experiment I included thermal and orographic forcing of the planetary-scale waves while Experiment II did not ...

R. J. Kurzeja; K. V. Haggard; W. L. Grose

1984-07-01T23:59:59.000Z

436

Aspects of CFC relative ozone destruction efficiencies determined in the LLNL 2-D model  

Science Conference Proceedings (OSTI)

We have investigated the efficiency of surface emission of several individual chlorofluorocarbons (CFCs) and hydrogen-containing chlorofluorocarbons (HCFCs) for reducing the calculated steady state total ozone column in both one- and two-dimensional models, relative to the effects of CFC-11 (CFCl/sub 3/) emission. We find that CFC and HCFC relative efficiencies can vary over two orders of magnitude, mostly as a result of atmospheric lifetimes. For CFCs and HCFCs with long stratospheric lifetimes the calculated efficiency is also reduced by the effects of lower and mid stratospheric photochemistry. Ozone in this region changes according to the net effect of changing rates of oxygen photolysis, direct chlorine-catalyzed ozone loss and interference by active chlorine species in the nitrogen oxide-catalyzed ozone loss process. In these cases, the relative efficiencies show a marked latitudinal dependence, being larger at high latitudes and smaller at lower latitudes. Additionally in these cases, the one-dimensional model appears to overestimate the globally and annually averaged result that is obtained from the two-dimensional model. These considerations should be taken into account when quantities similar to the relative efficiency defined here are applied to CFC production and emission decisions. 6 refs., 4 figs., 1 tab.

Connell, P.; Grant, K.; Wuebbles, D.

1988-08-01T23:59:59.000Z

437

New Pump Correction for the Brewer–Mast Ozone Sonde: Determination from Experiment and Instrument Intercomparisons  

Science Conference Proceedings (OSTI)

Pump efficiency of the Brewer–Mast (B–M) ozone sonde deteriorates significantly at altitudes above 22 km (pressures below 50 hPa). The correction currently used as the WMO standard does not sufficiently account for the efficiency decrease. It is ...

W. Steinbrecht; R. Schwarz; H. Claude

1998-02-01T23:59:59.000Z

438

Three-Dimensional Model Study of the Antarctic Ozone Hole in 2002 and Comparison with 2000  

Science Conference Proceedings (OSTI)

An offline 3D chemical transport model (CTM) has been used to study the evolution of the Antarctic ozone hole during the sudden warming event of 2002 and to compare it with similar simulations for 2000. The CTM has a detailed stratospheric ...

W. Feng; M. P. Chipperfield; H. K. Roscoe; J. J. Remedios; A. M. Waterfall; G. P. Stiller; N. Glatthor; M. Höpfner; D.-Y. Wang

2005-03-01T23:59:59.000Z

439

Part I: The South Asian Haze: Air Pollution, Ozone and Aerosols Page 8 -UNEP Assessment Report  

E-Print Network (OSTI)

locations, where domestic energy consumption depends on biofuels such as wood and cow dung, whereas in urban source of air pollution as it is very inefficient as an energy source. The INDOEX measurements of CO havePart I: The South Asian Haze: Air Pollution, Ozone and Aerosols #12;Page 8 - UNEP Assessment Report

Collins, William

440

Influence of Doubled CO2 on Ozone via Changes in the Brewer–Dobson Circulation  

Science Conference Proceedings (OSTI)

In this short note, the effect of enhanced circulation due to doubling CO2 on ozone is investigated. The difference of Brewer–Dobson circulation (BDC) between the doubled CO2 and control run from an idealized atmospheric general circulation model ...

Xun Jiang; Scott J. Eichelberger; Dennis L. Hartmann; Runlie Shia; Yuk L. Yung

2007-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Daily Simulation of Ozone and Fine Particulates over New York State: Findings and Challenges  

Science Conference Proceedings (OSTI)

This study investigates the potential utility of the application of a photochemical modeling system in providing simultaneous forecasts of ozone (O3) and fine particulate matter (PM2.5) over New York State. To this end, daily simulations from the ...

C. Hogrefe; W. Hao; K. Civerolo; J.-Y. Ku; G. Sistla; R. S. Gaza; L. Sedefian; K. Schere; A. Gilliland; R. Mathur

2007-07-01T23:59:59.000Z

442

Final Report, "Laboratory Studies of the Role of Sea Salt Bromine in Determining Tropospheric Ozone"  

SciTech Connect

This document is a final report for the project DE-FG03-98ER62578, "Laboratory Studies of the Role of Sea Salt Bromine in Determining Tropospheric Ozone". It includes a technical summary, collaborations, educational contributions and the peer-reviewed scientific publications that have resulted from this research.

B. J. Finlayson-Pitts

2005-06-20T23:59:59.000Z

443

Prediction of ozone levels in London using the MM5-CMAQ modelling system  

Science Conference Proceedings (OSTI)

Air pollution in urban areas has important implications for health and environmental management. Consequently, various methodologies have been developed for its assessment. Traditionally, simple approaches such as the box model or the Gaussian plume ... Keywords: Atmospheric modelling, CMAQ, MM5, Ozone, Urban air quality

R. S. Sokhi; R. San José; N. Kitwiroon; E. Fragkou; J. L. Pérez; D. R. Middleton

2006-04-01T23:59:59.000Z

444

DIAL Tropospheric Ozone Measurement Using a Nd:YAG Laser and the Raman Shifting Technique  

Science Conference Proceedings (OSTI)

The Differential Absorption Lidar (DIAL) offers a way to perform ozone measurements in the troposphere with the spatial and temporal resolutions needed for both short and long term studies. Only a few DIAL system have been used up to now for this ...

G. Ancellet; A. Papayannis; J. Pelon; G. Mégie

1989-10-01T23:59:59.000Z

445

Decadal Changes of Wind Stress over the Southern Ocean Associated with Antarctic Ozone Depletion  

Science Conference Proceedings (OSTI)

Using 40-yr ECMWF Re-Analysis (ERA-40) data and in situ observations, the positive trend of Southern Ocean surface wind stress during two recent decades is detected, and its close linkage with spring Antarctic ozone depletion is established. The ...

Xiao-Yi Yang; Rui Xin Huang; Dong Xiao Wang

2007-07-01T23:59:59.000Z

446

Modeling impacts of geomagnetic field variations on middle atmospheric ozone responses to solar proton  

E-Print Network (OSTI)

Modeling impacts of geomagnetic field variations on middle atmospheric ozone responses to solar charged particles of solar and cosmic origin. Therefore variations of the geomagnetic field occurring to the atmosphere under the consideration of different shielding properties of the geomagnetic field. The present

Wehrli, Bernhard

447

The Global Ozone Monitoring Experiment (GOME): Mission Concept and First Scientific Results  

Science Conference Proceedings (OSTI)

The Global Ozone Monitoring Experiment (GOME) is a new instrument aboard the European Space Agency’s (ESA) Second European Remote Sensing Satellite (ERS-2), which was launched in April 1995. The main scientific objective of the GOME mission is to ...

John P. Burrows; Mark Weber; Michael Buchwitz; Vladimir Rozanov; Annette Ladstätter-Weißenmayer; Andreas Richter; Rüdiger DeBeek; Ricarda Hoogen; Klaus Bramstedt; Kai-Uwe Eichmann; Michael Eisinger; Dieter Perner

1999-01-01T23:59:59.000Z

448

Formation of Carbon Dwarfs  

E-Print Network (OSTI)

We consider the formation of dwarf carbon stars via accretion from a carbon AGB companion in light of the new 107 object sample of Downes et al. (2004). This sample is now large enough to allow good mass determination via comparison of a composite spectrum to theoretical atmospheric models. Carbon dwarfs of spectral type M are indeed main sequence M dwarfs with enhanced metallicity and carbon abundance. We also calculate the predicted abundance of both M and of F/G carbon dwarfs, and show that the latter should be falsifiable in the near future.

Charles L. Steinhardt; Dimitar D. Sasselov

2005-02-08T23:59:59.000Z

449

Tracing Fuel Component Carbon in the Emissions from Diesel Engines  

DOE Green Energy (OSTI)

The addition of oxygenates to diesel fuel can reduce particulate emissions, but the underlying chemical pathways for the reductions are not well understood. While measurements of particulate matter (PM), unburned hydrocarbons (HC), and carbon monoxide (CO) are routine, determining the contribution of carbon atoms in the original fuel molecules to the formation of these undesired exhaust emissions has proven difficult. Renewable bio-derived fuels (ethanol or bio-diesel) containing a universal distribution of contemporary carbon are easily traced by accelerator mass spectrometry (AMS). These measurements provide general information about the emissions of bio-derived fuels. Another approach exploits synthetic organic chemistry to place {sup 14}C atoms in a specific bond position in a specific fuel molecule. The highly labeled fuel molecule is then diluted in {sup 14}C-free petroleum-derived stock to make a contemporary petroleum fuel suitable for tracing. The specific {sup 14}C atoms are then traced through the combustion event to determine whether they reside in PM, HC, CO, CO{sub 2}, or other emission products. This knowledge of how specific molecular structures produce certain emissions can be used to refine chemical-kinetic combustion models and to optimize fuel composition to reduce undesired emissions. Due to the high sensitivity of the technique and the lack of appreciable {sup 14}C in fossil fuels, fuels for AMS experiments can be labeled with modern levels of {sup 14}C and still produce a strong signal. Since the fuel is not radioactive, emission tests can be conducted in any conventional engine lab, dynamometer facility, or on the open road.

Buchholz, B A; Mueller, C J; Martin, G C; Cheng, A S E; Dibble, R W; Frantz, B R

2002-10-14T23:59:59.000Z

450

Study of fire retardant behavior of carbon nanotube membranes and carbon nanofiber paper in carbon fiber  

E-Print Network (OSTI)

Study of fire retardant behavior of carbon nanotube membranes and carbon nanofiber paper in carbon Accepted 14 January 2010 Available online 20 January 2010 A B S T R A C T Single-walled carbon nanotube (SWCNT) and multi-walled carbon nanotube (MWCNT) membranes (buckypaper) and carbon nanofiber (CNF) paper

Das, Suman

451

Development of Commodity Grade, Lower Cost Carbon Fiber - Commercial Applications  

SciTech Connect

In pursuit of the goal to produce ultra-lightweight fuel efficient vehicles, there has been great excitement during the last few years about the potential for using carbon fiber reinforced composites in high volume applications. Currently, the greatest hurdle that inhibits wider implementation of carbon fiber composites in transportation is the high cost of the fiber when compared to other candidate materials. As part of the United States Department of Energy s FreedomCAR initiative, significant research is being conducted to develop lower cost, high volume technologies for producing carbon fiber. This paper will highlight the on-going research in this area. Through Department of Energy (DOE) sponsorship, Oak Ridge National Laboratory (ORNL) and its partners have been working with the US Automotive Composites Consortium (ACC) to develop technologies that would enable the production of carbon fiber at 5-7 dollars per pound. Achievement of this cost goal would allow the introduction of carbon fiber based composites into a greater number of applications for future vehicles. The approach has necessitated the development of both alternative precursors and more efficient production methods. Alternative precursors under investigation include textile grade polyacrylonitrile (PAN) fibers and fibers from lignin-based feedstocks. Previously, as part of the research program, Hexcel Corporation developed the science necessary to allow textile grade PAN to be used as a precursor rather than typical carbon fiber grade precursors. Efforts are also underway to develop carbon fiber precursors from lignin-based feedstocks. ORNL and its partners are working on this effort with domestic pulp and paper producers. In terms of alternative production methods, ORNL has developed a microwave-based carbonization unit that can process pre-oxidized fiber at over 200 inches per minute. ORNL has also developed a new method of high speed oxidation and a new method for precursor stabilization. Additionally, novel methods of activating carbon fiber surfaces have been developed which allow atomic oxygen concentrations as high as 25-30% to be achieved rather than the more typical 4-8% achieved by the standard industrial ozone treatment.

Warren, Charles David [ORNL; Paulauskas, Felix L [ORNL; Baker, Frederick S [ORNL; Eberle, Cliff [ORNL; Naskar, Amit K [ORNL

2009-01-01T23:59:59.000Z

452

Carbon dioxide sensor  

SciTech Connect

The present invention generally relates to carbon dioxide (CO.sub.2) sensors. In one embodiment, the present invention relates to a carbon dioxide (CO.sub.2) sensor that incorporates lithium phosphate (Li.sub.3PO.sub.4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li.sub.2CO.sub.3) and barium carbonate (BaCO.sub.3). In another embodiment, the present invention relates to a carbon dioxide (CO.sub.2) sensor has a reduced sensitivity to humidity due to a sensing electrode with a layered structure of lithium carbonate and barium carbonate. In still another embodiment, the present invention relates to a method of producing carbon dioxide (CO.sub.2) sensors having lithium phosphate (Li.sub.3PO.sub.4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li.sub.2CO.sub.3) and barium carbonate (BaCO.sub.3).

Dutta, Prabir K. (Worthington, OH); Lee, Inhee (Columbus, OH); Akbar, Sheikh A. (Hilliard, OH)

2011-11-15T23:59:59.000Z

453

Molecular Basis of Microbial One-Carbon Metabolism 2008 Gordon Research Conference (July 20-25, 2008)  

SciTech Connect

One-carbon (C-1) compounds play a central role in microbial metabolism. C-1 compounds include methane, carbon monoxide, CO2, and methanol as well as coenzyme-bound one-carbon compounds (methyl-B12, CH3-H4folate, etc). Such compounds are of broad global importance because several C-1 compounds (e.g., CH4) are important energy sources, some (e.g., CO2 and CH4) are potent greenhouse gases, and others (e.g., CH2Cl2) are xenobiotics. They are central in pathways of energy metabolism and carbon fixation by microbes and many are of industrial interest. Research on the pathways of one-carbon metabolism has added greatly to our understanding of evolution, structural biology, enzyme mechanisms, gene regulation, ecology, and applied biology. The 2008 meeting will include recent important findings in the following areas: (a) genomics, metagenomics, and proteomic studies that have expanded our understanding of autotrophy and C-1 metabolism and the evolution of these pathways; (b) redox regulation of carbon cycles and the interrelationship between the carbon cycle and other biogeochemical cycles (sulfur, nitrogen, oxygen); (c) novel pathways for carbon assimilation; (d) biotechnology related to C-1 metabolism; (e) novel enzyme mechanisms including channeling of C-1 intermediates during metabolism; and (f) the relationship between metal homeostasis and the global carbon cycle. The conference has a diverse and gender-balanced slate of speakers and session leaders. The wide variety of disciplines brought to the study of C-1 metabolism make the field an excellent one in which to train young researchers.

Stephen W. Ragsdale

2009-08-12T23:59:59.000Z

454

Satellite Measurement of Stratospheric Winds and Ozone Using Doppler Michelson Interferometry. Part I: Instrument Model and Measurement Simulation  

Science Conference Proceedings (OSTI)

This paper presents an instrument model and observation simulations for the measurement of stratospheric winds and ozone concentration using a satellite instrument employing imaging and the Doppler Michelson interferometery technique. The ...

Peyman Rahnama; Yves J. Rochon; Ian C. McDade; Gordon G. Shepherd; William A. Gault; Alan Scott

2006-06-01T23:59:59.000Z

455

An Analytical Study of Ozone Feedbacks on Kelvin and Rossby–Gravity Waves: Effects on the QBO  

Science Conference Proceedings (OSTI)

An equatorial beta-plane model of the middle atmosphere is used to analytically examine the effects of radiative cooling and ozone heating on the spatial and temporal evolution of the quasi-biennial oscillation (QBO). Under the assumption that ...

Eugene C. Cordero; Terrence R. Nathan; Robert S. Echols

1998-03-01T23:59:59.000Z

456

Stratospheric Ozone Depletion: The Main Driver of Twentieth-Century Atmospheric Circulation Changes in the Southern Hemisphere  

Science Conference Proceedings (OSTI)

The importance of stratospheric ozone depletion on the atmospheric circulation of the troposphere is studied with an atmospheric general circulation model, the Community Atmospheric Model, version 3 (CAM3), for the second half of the twentieth ...

Lorenzo M. Polvani; Darryn W. Waugh; Gustavo J. P. Correa; Seok-Woo Son

2011-02-01T23:59:59.000Z

457

Development and Application of a Compact, Tunable, Solid-State Airborne Ozone Lidar System for Boundary Layer Profiling  

Science Conference Proceedings (OSTI)

The National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Chemical Sciences Division (NOAA/ESRL/CSD) has developed a versatile, airborne lidar system for measuring ozone and aerosols in the boundary layer and lower free ...

R. J. Alvarez II; C. J. Senff; A. O. Langford; A. M. Weickmann; D. C. Law; J. L. Machol; D. A. Merritt; R. D. Marchbanks; S. P. Sandberg; W. A. Brewer; R. M. Hardesty; R. M. Banta

2011-10-01T23:59:59.000Z

458

An Estimate of the Vertical Ozone Profile Discrepancy between the Australian Brewer–Mast and Electrochemical Concentration Cell Ozonesondes  

Science Conference Proceedings (OSTI)

An analysis is described that provides an additive correction for referencing the vertical ozone profiles of the Australian Brewer–Mast (BM; October 1984–December 1990) ozonesonde to those of the electrochemical concentration cell (ECC; January ...

Paul Lehmann

2005-12-01T23:59:59.000Z

459

Constructing a coherent long-term global total ozone climatology from the BUV, MFR, and SBUV/TOMS data sets  

Science Conference Proceedings (OSTI)

The backscatter ultraviolet spectrometer (BUV) aboard the NIMBUS 4 satellite provided global ozone data until mid-1977. The Total Ozone Mapping Spectrometer (TOMS) and Solar Backscattered Ultraviolet (SBUV) instrument aboard the NIMBUS 7 satellite began providing global ozone in November 1978. The only satellite derived global total ozone data available between the termination of the BUV data and the startup of the SBUV/TOMS data is that from the Multichannel Filter Radiometer (MFR) instrument aboard the Defense Meteorological Satellite Program (DMSP) series of satellites. The MFR and the SBUV/TOMS data are compared during the data overlap period in order to determine how well the MFR data might be used to represent the SBUV/TOMS and BUV data during the data gap period. 5 refs., 3 figs., 3 tabs.

Ellis, J.S.; Luther, F.M.

1986-02-01T23:59:59.000Z

460

Assimilation of Stratospheric Temperature and Ozone with an Ensemble Kalman Filter in a Chemistry–Climate Model  

Science Conference Proceedings (OSTI)

A new stratospheric chemical–dynamical data assimilation system was developed, based upon an ensemble Kalman filter coupled with a Chemistry–Climate Model [i.e., the intermediate-complexity general circulation model Fast Stratospheric Ozone ...

Thomas Milewski; Michel S. Bourqui

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Long-term trends and decadal solar variability in ozone near the tropopause over the Indian region  

Science Conference Proceedings (OSTI)

To investigate the long-term trends and effects of decadal solar variability in the upper tropospheric ozone, data obtained from the Stratospheric Aerosol and Gas Experiment II SAGE II aboard the Earth Radiation Budget Satellite ERBS during the period ...

S. Fadnavis, Usha Iyer, P. Ernest Raj

2013-10-01T23:59:59.000Z

462

Instrument Characterization for the Detection of Long-term Changes in Stratospheric Ozone: An Analysis of the SBUY/2 Radiometer  

Science Conference Proceedings (OSTI)

The scientific objective of unambiguously detecting subtle global trends in upper stratospheric ozone requires that one maintain a thorough understanding of the satellite-based remote sensors intended for this task. The instrument now in use for ...

S. E. Frederick; R. P. Cebula; D. F. Heath

1986-09-01T23:59:59.000Z

463

Ground-Based DOAS Measurements of Stratospheric Trace Gases at Two Antarctic Stations during the 2002 Ozone Hole Period  

Science Conference Proceedings (OSTI)

Compared to recent years, the development of the Antarctic ozone hole in 2002 showed very unusual dynamical features. The midwinter polar vortex was one of the smallest observed during the past decade. Driven by planetary waves, the vortex showed ...

U. Frieß; K. Kreher; P. V. Johnston; U. Platt

2005-03-01T23:59:59.000Z

464

Effects of Future Climate and Biogenic Emissions Changes on Surface Ozone over the United States and China  

Science Conference Proceedings (OSTI)

Future projections of near-surface ozone concentrations depend on the climate/emissions scenario used to drive future simulations, the direct effects of the changing climate on the atmosphere, and the indirect effects of changing temperatures and ...

Jin-Tai Lin; Kenneth O. Patten; Katharine Hayhoe; Xin-Zhong Liang; Donald J. Wuebbles

2008-07-01T23:59:59.000Z

465

The External Scale of Clear Air Turbulence Derived from the Vertical Ozone Profile: Application to Vertical Transport Measurement  

Science Conference Proceedings (OSTI)

Using a high-resolution stratospheric ozonometer it has been possible to obtain vertical ozone profiles in which microfluctuations may be interpreted as the consequence of eddy diffusion. Applying Kolmogoroff's theory to the signal, one can ...

J. Barat; P. Aimedieu

1981-03-01T23:59:59.000Z

466

Carbon Emissions: Food Industry  

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

Food Industry Food Industry Carbon Emissions in the Food Industry The Industry at a Glance, 1994 (SIC Code: 20) Total Energy-Related Emissions: 24.4 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 6.6% Total First Use of Energy: 1,193 trillion Btu -- Pct. of All Manufacturers: 5.5% Carbon Intensity: 20.44 MMTC per quadrillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 24.4 Net Electricity 9.8 Natural Gas 9.1 Coal 4.2 All Other Sources 1.3 Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998

467

Carbon Emissions: Chemicals Industry  

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

Chemicals Industry Chemicals Industry Carbon Emissions in the Chemicals Industry The Industry at a Glance, 1994 (SIC Code: 28) Total Energy-Related Emissions: 78.3 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 21.1% -- Nonfuel Emissions: 12.0 MMTC Total First Use of Energy: 5,328 trillion Btu -- Pct. of All Manufacturers: 24.6% Energy Sources Used As Feedstocks: 2,297 trillion Btu -- LPG: 1,365 trillion Btu -- Natural Gas: 674 trillion Btu Carbon Intensity: 14.70 MMTC per quadrillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 78.3 Natural Gas 32.1

468

Carbon Emissions: Paper Industry  

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

Paper Industry Paper Industry Carbon Emissions in the Paper Industry The Industry at a Glance, 1994 (SIC Code: 26) Total Energy-Related Emissions: 31.6 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 8.5% Total First Use of Energy: 2,665 trillion Btu -- Pct. of All Manufacturers: 12.3% -- Pct. Renewable Energy: 47.7% Carbon Intensity: 11.88 MMTC per quadrillion Btu Renewable Energy Sources (no net emissions): -- Pulping liquor: 882 trillion Btu -- Wood chips and bark: 389 trillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey" and Emissions of Greenhouse Gases in the United States 1998 Energy-Related Carbon Emissions, 1994 Source of Carbon Carbon Emissions (million metric tons) All Energy Sources 31.6 Net Electricity 11.0

469

NETL: Carbon Storage  

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

Storage Storage Technologies Carbon Storage (formerly referred to as the "Carbon Sequestration Program") Program Overview For quick navigation of NETL's Carbon Storage Program website, please click on the image. NETL's Carbon Storage Program Fossil fuels are considered the most dependable, cost-effective energy source in the world. The availability of these fuels to provide clean, affordable energy is essential for domestic and global prosperity and security well into the 21st century. However, a balance is needed between energy security and concerns over the impacts of concentrations of greenhouse gases (GHGs) in the atmosphere - particularly carbon dioxide (CO2). NETL's Carbon Storage Program is developing a technology portfolio of safe, cost-effective, commercial-scale CO2 capture, storage, and mitigation

470

Mesoporous carbon materials  

SciTech Connect

The invention is directed to a method for fabricating a mesoporous carbon material, the method comprising subjecting a precursor composition to a curing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer, (ii) a phenolic compound or material, (iii) a crosslinkable aldehyde component, and (iv) at least 0.5 M concentration of a strong acid having a pKa of or less than -2, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a mesoporous carbon material. The invention is also directed to a mesoporous carbon material having an improved thermal stability, preferably produced according to the above method.

Dai, Sheng; Wang, Xiqing

2013-08-20T23:59:59.000Z

471

The Carbon Cycle  

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

The Carbon Cycle The Carbon Cycle The global carbon cycle involves the carbon in and exchanging between the earth's atmosphere, fossil fuels, the oceans, and the vegetation and soils of the earth's terrestrial ecosystems. image Each year, the world's terrestrial ecosystems withdraw carbon from the atmosphere through photosynthesis and add it again through respiration and decay. A more detailed look at the global carbon cycle for the 1990s is shown below. The main annual fluxes in GtC yr-1 are: pre-industrial "natural" fluxes in black and "anthropogenic" fluxes in red (modified from Sarmiento and Gruber, 2006, with changes in pool sizes from Sabine et al., 2004a). The net terrestrial loss of -39 GtC is inferred from cumulative fossil fuel emissions minus atmospheric increase minus ocean storage. The loss of

472

Would Border Carbon Adjustments prevent carbon leakage and heavy industry  

E-Print Network (OSTI)

No 52-2013 Would Border Carbon Adjustments prevent carbon leakage and heavy industry halshs-00870689,version1-7Oct2013 #12;Would Border Carbon Adjustments prevent carbon leakage and heavy The efficiency of unilateral climate policies may be hampered by carbon leakage and competitiveness losses

Recanati, Catherine

473

Carbon Sequestration - Public Meeting  

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

Public Meeting Programmatic Environmental Impact Statement Public Meeting May 18, 2004 National Energy Technology Laboratory Office of Fossil Energy Scott Klara Carbon Sequestration Technology Manager Carbon Sequestration Program Overview * What is Carbon Sequestration * The Fossil Energy Situation * Greenhouse Gas Implications * Pathways to Greenhouse Gas Stabilization * Sequestration Program Overview * Program Requirements & Structure * Regional Partnerships * FutureGen * Sources of Information What is Carbon Sequestration? Capture can occur: * at the point of emission * when absorbed from air Storage locations include: * underground reservoirs * dissolved in deep oceans * converted to solid materials * trees, grasses, soils, or algae Capture and storage of CO 2 and other Greenhouse Gases that

474

NETL: Carbon Storage - Infrastructure  

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

Infrastructure Infrastructure Carbon Storage Infrastructure The Infrastructure Element of DOE's Carbon Storage Program is focused on research and development (R&D) initiatives to advance geologic CO2 storage toward commercialization. DOE determined early in the program's development that addressing CO2 mitigation on a regional level is the most effective way to address differences in geology, climate, population density, infrastructure, and socioeconomic development. This element includes the following efforts designed to support the development of regional infrastructure for carbon capture and storage (CCS). Click on Image to Navigate Infrastructure Content on this page requires a newer version of Adobe Flash Player. Get Adobe Flash player Regional Carbon Sequestration Partnerships (RCSP) - This

475

Carbon Sequestration 101  

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

R&D Overview R&D Overview Office of Fossil Energy Justin "Judd" R. Swift Asst. Secretary for International Affairs Office of Fossil Energy U.S. Department of Energy 2 nd U.S/China CO 2 Emission Control Science & Technology Symposium May 28-29, 2008 Hangzhou, China Office of Fossil Energy Technological Carbon Management Options Improve Efficiency Sequester Carbon ï‚· Renewables ï‚· Nuclear ï‚· Fuel Switching ï‚· Demand Side ï‚· Supply Side ï‚· Capture & Store ï‚· Enhance Natural Sinks Reduce Carbon Intensity All options needed to: ï‚· Affordably meet energy demand ï‚· Address environmental objectives Office of Fossil Energy DOE's Sequestration Program Structure Infrastructure Regional Carbon Sequestration

476

Activated carbon material  

DOE Patents (OSTI)

Activated carbon particles for use as iodine trapping material are impregnated with a mixture of selected iodine and potassium compounds to improve the iodine retention properties of the carbon. The I/K ratio is maintained at less than about 1 and the pH is maintained at above about 8.0. The iodine retention of activated carbon previously treated with or coimpregnated with triethylenediamine can also be improved by this technique. Suitable flame retardants can be added to raise the ignition temperature of the carbon to acceptable standards.

Evans, A. Gary (North Augusta, SC)

1978-01-01T23:59:59.000Z

477

Carbon Sequestration 101  

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

Cement Production Refineries Etc.... C Capture & Storage, Austin, TX Nov. 13-15, 2007 Carbon Sequestration Program Goals * Deliver technologies & best practices that validate:...

478

Carbon Fiber Electronic Interconnects.  

E-Print Network (OSTI)

??Carbon fiber is an emerging material in electrical and electronics industry. It has been used as contact in many applications, such as switch, potentiometer, and… (more)

Deng, Yuliang

2007-01-01T23:59:59.000Z

479

Carbon Capture & Sequestration  

Energy.gov (U.S. Department of Energy (DOE))

Learn about the Energy Department's work to capture and transport CO2 into underground geologic formations, also known as carbon capture and sequestration.

480

Reinforced Carbon Nanotubes.  

DOE Patents (OSTI)

The present invention relates generally to reinforced carbon nanotubes, and more particularly to reinforced carbon nanotubes having a plurality of microparticulate carbide or oxide materials formed substantially on the surface of such reinforced carbon nanotubes composite materials. In particular, the present invention provides reinforced carbon nanotubes (CNTs) having a plurality of boron carbide nanolumps formed substantially on a surface of the reinforced CNTs that provide a reinforcing effect on CNTs, enabling their use as effective reinforcing fillers for matrix materials to give high-strength composites. The present invention also provides methods for producing such carbide reinforced CNTs.

Ren, Zhifen (Newton, MA); Wen, Jian Guo (Newton, MA); Lao, Jing Y. (Chestnut Hill, MA); Li, Wenzhi (Brookline, MA)

2005-06-28T23:59:59.000Z

Note: This page contains sample records for the topic "ozone carbon monoxide" 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

Carbon Nanomaterials and Heterostructures  

Science Conference Proceedings (OSTI)

Mar 12, 2012 ... This presentation aims to capture those recent research efforts in synthesis and applications of carbon nanotubes in Li-ion battery, bioelectronic ...

482

NETL: Carbon Storage FAQs  

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

Does CCS really make a difference for the environment? Carbon capture and storage (CCS) is one of several options, including the use of renewables, nuclear energy, alternative...

483

Carbon Storage Program  

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

fuel power plants as viable, clean sources of electric power. The program is focused on developing technologies that can achieve 99 percent of carbon dioxide (CO 2 ) storage...

484

Compatibility of the ultraviolet light-ozone system for laundry waste water treatment in nuclear power plants  

SciTech Connect

As an alternative treatment system for laundry waste water in nuclear power plants, a system was chosen in which such organic compounds as surfactant would be oxidized by ultraviolet (UV) light and ozone. The system compatibility, UV light source, and dissolved ozone concentration were examined through experiments. First, ozone gas was absorbed in the waste water. After the dissolved ozone concentration equilibrated at the desired value, the waste water was irradiated by a mercury lamp. Then, the time dependence of the concentrations of the organic compounds, the dissolved ozone, and the hydrogen peroxide were measured to estimate the treatment rate of the system. The mercury lamp with a 10{sup 5}-Pa vapor pressure achieved large UV radiation and a treatment rate increase, leading to a compatible system without secondary waste generation. The effect of the dissolved ozone concentration on the treatment rate was saturated when concentration was >3.3 {times} 10{sup {minus}4} mol/10{sup {minus}3} m{sup 3} at the time UV radiation was started. Numerical results indicated the saturation was due to hydrogen peroxide generation, which prevents hydroxyl radical generation.

Matsuo, Toshiaki; Nishi, Takashi; Matsuda, Masami; Izumida, Tatsuo [Hitachi, Ltd. (Japan)

1997-08-01T23:59:59.000Z

485

NETL: Carbon Storage - Reference Shelf  

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

Carbon Storage > Reference Shelf Carbon Storage > Reference Shelf Carbon Storage Reference Shelf Below are links to Carbon Storage Program documents and reference materials. Each of the 10 categories has a variety of documents posted for easy access to current information - just click on the category link to view all related materials. RSS Icon Subscribe to the Carbon Storage RSS Feed. Carbon Storage Collage 2012 Carbon Utilization and Storage Atlas IV Carbon Sequestration Project Portfolio DOE/NETL Carbon Dioxide Capture and Storage RD&D Roadmap Public Outreach and Education for Carbon Storage Projects Carbon Storage Technology Program Plan Carbon Storage Newsletter Archive Impact of the Marcellus Shale Gas Play on Current and Future CCS Activities Site Screening, Selection, and Initial Characterization for Storage of CO2 in Deep Geologic Formations Carbon Storage Systems and Well Management Activities Monitoring, Verification, and Accounting of CO2 Stored in Deep Geologic Formations

486

ARM - Measurement - Trace gas concentration  

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

govMeasurementsTrace gas concentration govMeasurementsTrace gas concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Trace gas concentration The amount per unit volume of trace gases other than carbon dioxide, ozone and water vapor, typically measured in conjunction with in situ aerosol measurements, e.g. carbon monoxide, nitrogen oxides, sulfur dioxide. Categories Atmospheric Carbon, Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments CO : Carbon Monoxide Mixing Ratio System

487

Carbon-13 kinetic isotope effects in CO oxidation by Ag  

SciTech Connect

In the catalytic oxidation of carbon monoxide over silver wool the {sup 13}C kinetic isotope effects in the 343--453 K temperature range were experimentally determined and the following temperature dependence was found: 100 ln(k{sub 12}/k{sub 13}) = (3.398--630/T) {+-} 0.083. A reaction CO/O{sub 2}gas mixture of 1:2 ratio was used in a static system with initial pressures ranging from 20 to 40 kPa. Under these conditions the reaction is of order 1 with respect to CO and order 0 with respect to O{sub 2} and CO{sub 2} pressure. The apparent activation energy is 59.3 {+-} 1.7 kJ/mol. In the authors theoretical interpretation of the experimental data various geometries of (CO{sub 2})* and (CO{sub 3})* transition states were applied, and only a (CO{sub 2})* with an interbond angle of 110{degree} and CO stretching force constants of 1,700 and 1,000--1,400 N/m, respectively, with an asymmetric reaction coordinate was found to be acceptable.

Kobal, I.; Burghaus, U.; Senegacnik, M.; Ogrinc, N.

1999-08-31T23:59:59.000Z

488

Global Economic Effects of Changes in Crops, Pasture, and Forests due to Changing Climate, Carbon Dioxide, and Ozone  

E-Print Network (OSTI)

Multiple environmental changes will have consequences for global vegetation. To the extent that crop yields and pasture and forest productivity are affected there can be important economic consequences. We examine the ...

Reilly, John M.

489

Carbon-Optimal and Carbon-Neutral Supply Chains  

E-Print Network (OSTI)

Y. Li, M. Daskin. 2009. Carbon Footprint and the ManagementJ. van Houtum. 2011. E?ect of carbon emission regulations onStreamlined Enterprise Carbon Footprinting. Environmental

Caro, F.; Corbett, C. J.; Tan, T.; Zuidwijk, R.

2011-01-01T23:59:59.000Z

490

Microsoft Word - BingQuestioniSixOzone8-hr11.doc  

Gasoline and Diesel Fuel Update (EIA)

Reformulated Gasoline Use Under Reformulated Gasoline Use Under the 8-Hour Ozone Rule September 2002 ii Energy Information Administration/Reformulated Gasoline Use Contacts This report was prepared by the Office of Integrated Analysis and Forecasting of the Energy Information Administration. General questions concerning the report may be directed to Mary J. Hutzler (202/586-2222, mhutzler@eia.doe.gov), Director, Office of Integrated Analysis and Forecasting, or James Kendell (202/586-9646, james.kendell@eia.doe.gov), Director, Oil and Gas Division. Specific questions about the report may be directed to the following analyst: Stacy MacIntyre 202/586-9795 stacy.macintyre@eia.doe.gov 1 Energy Information Administration/Reformulated Gasoline Use Reformulated Gasoline Use Under the 8-Hour Ozone Rule

491

Total Ozone Mapping Spectrometer (TOMS) Derived Data, Global Earth Coverage (GEC) from NASA's Earth Probe Satellite  

DOE Data Explorer (OSTI)

This is data from an external datastream processed through the ARM External Data Center (XDC) at Brookhaven National Laboratory. The XDC identifies sources and acquires data, called "external data", to augment the data being generated within the ARM program. The external data acquired are usually converted from native format to either netCDF or HDF formats. The GEC collection contains global data derived from the Total Ozone Mapping Spectrometer (TOMS) instrument on the Earth Probe satellite, consisting of daily values of aerosol index, ozone and reflectivity remapped into a regular 1x1.25 deg grid. Data are available from July 25, 1996 - December 31, 2005, but have been updated or replaced as of September 2007. See the explanation on the ARM web site at http://www.arm.gov/xds/static/toms.stm and the information at the NASA/TOMS web site: http://toms.gsfc.nasa.gov/ (Registration required)

492

Response of bean and tobacco to ozone: effect of light intensity, temperature and relative humidity  

SciTech Connect

Pinto bean (Phaseolus vulgaris, L.) and Bel W/sub 3/ tobacco (Nicotiana tabacum, L.) were grown and exposed to 40 pphm ozone for 1 hr under a range of light intensities, temperatures, and relative humidities. Foliar injury to the more sensitive plant leaves was determined on the third day after exposure. Each atmospheric factor was independently assessed. Two significant three-way interactions were found: exposure light intensity by growth light intensity by species, and growth temperature by exposure temperarture by species. Three significant two-way interactions were found for humidity: growth humidity by exposure humidity, growth humidity by species, and exposure humidity by species. The sensitivity of each species to ozone changed with changes in each environmental condition.

Dunning, J.A.; Heck, W.W.

1977-09-01T23:59:59.000Z

493

Dynamics and Disequilibrium Carbon Chemistry in Hot Jupiter Atmospheres, With Application to HD 209458b  

E-Print Network (OSTI)

Chemical equilibrium considerations suggest that, assuming solar elemental abundances, carbon on HD 209458b is sequestered primarily as carbon monoxide (CO) and methane (CH4). The relative mole fractions of CO(g) and CH4(g) in chemical equilibrium are expected to vary greatly according to variations in local temperature and pressure. We show, however, that in the p = 1--1000 mbar range, chemical equilibrium does not hold. To explore disequilibrium effects, we couple the chemical kinetics of CO and CH4 to a three-dimensional numerical model of HD 209458b's atmospheric circulation. These simulations show that vigorous dynamics caused by uneven heating of this tidally locked planet homogenize the CO and CH4 concentrations at p < 1 bar, even in the presence of lateral temperature variations of ~500--1000 K. In the 1--1000 mbar pressure range, we find that over 98% of the carbon is in CO. This is true even in cool regions where CH4 is much more stable thermodynamically. Our work shows furthermore that planets 300--500 K cooler than HD 209458b can also have abundant CO in their upper layers due to disequilibrium effects. We demonstrate several interesting observational consequences of these results.

Curtis S. Cooper; Adam P. Showman

2006-02-22T23:59:59.000Z

494

Lead carbonate scintillator materials  

DOE Patents (OSTI)

Improved radiation detectors containing lead carbonate or basic lead carbonate as the scintillator element are disclosed. Both of these scintillators have been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to other known scintillator materials. The radiation detectors disclosed are favorably suited for use in general purpose detection and in medical uses.

Derenzo, Stephen E. (Pinole, CA); Moses, William W. (Berkeley, CA)

1991-01-01T23:59:59.000Z

495

Impact of supersonic and subsonic aircraft on ozone: Including heterogeneous chemical reaction mechanisms  

Science Conference Proceedings (OSTI)

Preliminary calculations suggest that heterogeneous reactions are important in calculating the impact on ozone from emissions of trace gases from aircraft fleets. In this study, three heterogeneous chemical processes that occur on background sulfuric acid aerosols are included and their effects on O{sub 3}, NO{sub x}, Cl{sub x}, HCl, N{sub 2}O{sub 5}, ClONO{sub 2} are calculated.

Kinnison, D.E.; Wuebbles, D.J.

1992-07-05T23:59:59.000Z

496

Examination of the Effects of Sea Salt Aerosols on Southeast Texas Ozone and Secondary Organic Aerosol  

E-Print Network (OSTI)

Despite decades of study, we still do not fully understand aerosols and their interactions among gases or other aerosols in the atmosphere. Among their impacts, they influence radiative transfer in the atmosphere and contribute to cloud formation. There are many different types of aerosols, including dust particles, soot particles, and microscopic particles containing inorganic compounds such as sulfates. Most of these particles have natural origins, but many are anthropogenic. The eventual purpose of this research is to examine sea salt aerosols and their impact on polluted environments. Sea salt aerosols act as Cloud Condensation Nuclei (CCN) as well as providing a surface for heterogeneous reactions. Such reactions have implications for trace gases such as ozone, reactive nitrogen, mercury, and sulfur containing compounds. Urban areas are most impacted by these trace gases, which is a concern because ozone especially affects the health of citizens. Experiments have three basic parts. First we generate mono-disperse 3 aerosols. That aerosol is then injected into the aerosol chambers with sea salt aerosols and prescribed concentrations of trace gases to characterize relevant interactions. However, those chambers are still under construction and not used during my study. The processed aerosols are then analyzed with a tandem differential mobility analyzer (TDMA) and other equipment. Different concentrations of sea salt aerosols, Cl, NOx, and other gases were planned to be introduced during the experiments. Concentrations of other gases and intensity of solar radiation would mimic those outside. Because these reactions have proved to increase localized concentrations of ozone in other work, this could have important implications. Future work will be designed to find study these interactions. This is important because the EPA has considered tightening the standards for both ozone and particulate matter. Industries would then need to reduce emissions or move farther from current sources of Cl or NOx pollution.

Benoit, Mark David

2013-05-01T23:59:59.000Z

497

Fiber Bridging Model for Reinforced-Carbon-Carbon  

Science Conference Proceedings (OSTI)

Symposium, Professor K. K. Chawla Honorary Symposium on Fibers, Foams and ... fiber bridging and resistance-curve behavior in reinforced-carbon-carbon (

498

Stabilization and carbonization studies of polyacrylonitrile /carbon nanotube composite fibers .  

E-Print Network (OSTI)

??Carbon fibers contain more than 90 wt. % carbon. They have low density, high specific strength and modulus, and good temperature and chemical resistance. Therefore,… (more)

Liu, Yaodong

2010-01-01T23:59:59.000Z

499

Novel method for carbon nanofilament growth on carbon fibers.  

E-Print Network (OSTI)

??Carbon nanofilaments were grown on the surface of microscale carbon-fibers at relatively low temperature using palladium as a catalyst to create multiscale fiber reinforcing structures… (more)

Garcia, Daniel

2009-01-01T23:59:59.000Z

500

Carbon Films Produced from Ionic Liquid Carbon Precursors ...  

The invention is directed to a method for producing a film of porous carbon, the method comprising carbonizing a film of an ionic liquid, wherein the ...