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Heavy oil recovery process: Conceptual engineering of a downhole methanator and preliminary estimate of facilities cost for application to North Slope Alaska

Description: Results from Tasks 8 and 9 are presented. Task 8 addressed the cost of materials and manufacturing of the Downhole Methanator and the cost of drilling and completing the vertical cased well and two horizontal drain holes in the West Sak reservoir. Task 9 addressed the preliminary design of surface facilities to support the enhanced recovery of heavy oil. Auxiliary facilities include steam reformers for carbon dioxide-rich natural gas reforming, emergency electric generators, nitrogen gas genera… more
Date: January 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Late transition metal. mu. -oxo and. mu. -imido complexes

Description: The synthesis and reactions of late-transition-metal oxo and imido complexes was explored. The deprotonation of platinum(II) hydroxo complexes yielded new oxo complexes. Attempted deprotonation of Cp*Rh(III) hydroxo complexes did not give oxo complexes but complex mixtures probably resulting from reduction of the Rh(III) center. The reaction of Na/Hg with (Cp*RhCl{sub 2}){sub 2} gave the very reactive Rh(II) dimer, (Cp*RhCl){sub 2}. Rhodium(I) imido complexes with the bis(dimethylphosphino)meth… more
Date: January 1, 1990
Creator: Sharp, P.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A simple plane-wave explosive lens

Description: A simple plane-wave lens, using an inert central plastic wave shaper, has been designed. An experiment was done with a 4-in. diam, zeroth-order design. An iterative technique that uses measured time deviations to correct the next wave shape was developed. Two identical versions of the first iterated shape were fired. Arrival-time deviations in these first iterates fell within 50-ns bounds. With greater care and further iteration, lenses bound by 10-ns deviations seem possible. 4 refs., 22 figs.
Date: December 1, 1990
Creator: Fritz, J.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The economics of long-term global climate change

Description: This report is intended to provide an overview of economic issues and research relevant to possible, long-term global climate change. It is primarily a critical survey, not a statement of Administration or Department policy. This report should serve to indicate that economic analysis of global change is in its infancy few assertions about costs or benefits can be made with confidence. The state of the literature precludes any attempt to produce anything like a comprehensive benefit-cost analysi… more
Date: September 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LIMB demonstration project extension

Description: The purpose of the DOE limestone injection multistage burner (LIMB) Demonstration Project Extension is to extend the data base on LIMB technology and to expand DOE's list of Clean Coal Technologies by demonstrating the Coolside process as part of the project. The main objectives of this project are: to demonstrate the general applicability of LIMB technology by testing 3 coals and 4 sorbents (total of 12 coal/sorbent combinations) at the Ohio Edison Edgewater plant; and to demonstrate that Cool… more
Date: September 21, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanism of hydrodenitrogenation (Part 4) infrared spectroscopy of acidic molybdena catalysts

Description: Mo oxide catalysts supported over a complete series of silica-aluminas have been characterized in the oxidic and reduced states, by means of total acidity measurements and by infrared spectroscopy. Ammonia chemisorption was used to titrate the total acidity of the catalysts, and IR absorption of adsorbed pyridine to distinguish Bronsted from Lewis acid sites. The formation of new acidity upon deposition of molybdena on silica-alumina supports was then explained on the basis of a simple surface … more
Date: January 1, 1990
Creator: Miranda, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Solid-state decomposition kinetics of pentaerythritol tetranitrate

Description: Decomposition of pentaerythritol tetranitrate (PETN) was monitored at constant volume under variable pressures of NO{sub 2} using differential scanning calorimetry(DSC). Decomposition involved a slow initial reaction followed by an autocatalytic transition at longer times. The apparent induction time(time-to-maximum rate) for autocatalysis was found to be dependent upon sample mass and the initial pressure of NO{sub 2}. A global kinetic model consistent with observed product distributions and t… more
Date: January 1, 1990
Creator: Pickard, J.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Polarized absorption spectra of flavin mononucleotide in flavodoxin crystals

Description: Although it has long been recognized that protein environments modulate the electronic structure of flavins, the precise nature of the interactions that lead to a specific effect are still poorly understood. Detailed knowledge of flavin environments from high resolution crystal structures of flavoproteins, coupled with spectroscopic measurements and molecular orbital calculations should begin to clarify the relative importance of the various possible interactions in a given system. Changes in o… more
Date: January 1, 1990
Creator: Hanson, L.K. (Brookhaven National Lab., Upton, NY (USA)); Christoph, G.W.; Hofrichter, J. (National Insts. of Health, Bethesda, MD (USA). Lab. of Chemical Physics) & Ludwig, M.L. (Michigan Univ., Ann Arbor, MI (USA). Div. of Biophysics Research)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The thermodynamic properties of 2-aminobiphenyl (an intermediate in the carbazole/hydrogen reaction network)

Description: Catalytic hydrodenitrogenation (HDN) is a key step in upgrading processes for conversion of heavy petroleum, shale oil, tar sands, and the products of the liquefaction of coal to economically viable products. This research program provides accurate experimental thermochemical and thermophysical properties for key organic nitrogen-containing compounds present in the range of alternative feedstocks, and applies the experimental information to thermodynamic analyses of key HDN reaction networks. T… more
Date: December 1, 1990
Creator: Steele, W. V.; Chirico, R. D.; Knipmeyer, S. E. & Nguyen, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal energy storage for an integrated coal gasification combined-cycle power plant

Description: This study investigates the use of molten nitrate salt thermal energy storage in an integrated gasification combined-cycle power plant allowing the facility to economically provide peak- and intermediate-load electric power. The results of the study show that an integrated gasification combined-cycle power plant with thermal energy storage can reduce the cost of coal-fired peak- or intermediate-load electric power by between 5% and 20% depending on the plants operating schedule. The use of dire… more
Date: March 1, 1990
Creator: Drost, M. K.; Antoniak, Z. I. & Brown, D. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Proof of concept testing of the advanced NOXSO flue gas cleanup process

Description: The objective of this project is to demonstrate the potential for application of the NOXSO Flue Gas Treatment (FGT) technology to coal-fired utility boilers in the 1990s. To accomplish this, the NOXSO team will design, construct, operate, and test a proof-of-concept scale NOXSO test facility at Ohio Edison's Toronto Station. The goal of the proof-of-concept test is to obtain the engineering data required to prepare a cost-effective design of a commercial scale NOXSO process module at an accepta… more
Date: January 1, 1990
Creator: Gilbert, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Performance analysis of a mixed nitride fuel system for an advanced liquid metal reactor

Description: The conceptual development and analysis of a proposed mixed nitride driver and blanket fuel system for a prototypic advanced liquid metal reactor design has been performed. As a first step, an intensive literature survey was completed on the development and testing of nitride fuel systems. Based on the results of this survey, prototypic mixed nitride fuel and blanket pins were designed and analyzed using the SIEX computer code. The analysis predicted that the nitride fuel consistently operated … more
Date: November 1, 1990
Creator: Lyon, W.F.; Baker, R.B. & Leggett, R.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Rate constants for the reaction, O( sup 3 P) + H sub 2 O r equilibrium OH + OH, over the temperature range 1053K to 2033K using two direct techniques

Description: The rate constant for the reaction of O({sup 3}P) with H{sub 2}O (reaction (1)) was measured over the temperature range 1288K {le} T {le} 2033K using the flash photolysis-shock tube technique and at 1053, 1090 and 1123K using the flash photolysis-resonance fluorescence method. The photolytic source for O({sup 3}P) atoms was nitric oxide. The results were given by the Arrhenius expression: k{sub 1}(T) = (9.2 {plus minus} 0.9) {times} 10{sup {minus}11} exp({minus}19100 {plus minus} 300 cal mol{su… more
Date: January 1, 1990
Creator: Sutherland, J.W.; Patterson, P.M. & Klemm, R.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Greenhouse Gases: What Is Their Role in Climate Change

Description: This paper summarizes information relevant to understanding the role of greenhouse gases in the atmosphere. It examines the nature of the greenhouse effect, the Earth's radiation budget, the concentrations of these gases in the atmosphere, how these concentrations have been changing, natural processes which regulate these concentrations of greenhouse gases, residence times of these gases in the atmosphere, and the rate of release of gases affecting atmospheric composition by human activities. W… more
Date: December 1, 1990
Creator: Edmonds, J. A.; Chandler, W. U. & Wuebbles, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Interactions of selected bacterial isolates with DBT and solubilized coal

Description: We are studying the interactions of isolated bacteria with dibenzothiophene (DBT), a sulfur-containing model compound, and with a solubilized coal product derived from a high-organic-sulfur lignite. The sensitivity of the tetrazolium assay used to identify and study these strains was improved by substituting tetrazolium violet for triphenyltetrazolium. DBT metabolism by thirteen strains was investigated using qualitative and quantitative GC and GC-MS analyses. Growth medium and incubation time … more
Date: January 1, 1990
Creator: Key, D. H.; Fox, R.V.; Kase, R.S.; Willey, M.S.; Stoner, D.L. & Ward, T.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The effects of climate change on the nitrogen cycle and acid deposition

Description: Increases in greenhouse gases are expected to lead to a number of changes to the atmosphere which may impact regional and global chemical cycles. With the increasing awareness of climate change and the possibility of global chemical changes to the atmosphere, it becomes important to ask whether these changes to global climate and chemical cycles might benefit or hinder control programs aimed at reducing acid deposition. In the following, we review several possible changes to climate that may be… more
Date: September 1, 1990
Creator: Penner, J.E.; Walton, J.J. (Lawrence Livermore National Lab., CA (USA)) & Graboske, B.C. (California Univ., Berkeley, CA (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Poland: An energy and environmental overview

Description: Poland's reliance on coal as its primary source of energy imposes heavy environmental costs on its economy and population. Specifically, many of Poland's air and water pollution problems can be traced to the high energy intensity of Polish industrial production. This overview presents environment and energy information for Poland. Topics discussed include: energy resources, production and use; energy production, trade and use; environmental quality and impacts; and control strategies. 109 refs.… more
Date: October 1, 1990
Creator: Szpunar, C.B.; Bhatti, N.; Buehring, W.A.; Streets, D.G. (Argonne National Lab., IL (USA)) & Balandynowicz, H.W. (Polska Akademia Nauk, Warsaw (Poland). Inst. Podstawowych Problemow Techniki)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A novel approach to highly dispersing catalytic materials in coal for gasification

Description: This project seeks to develop a technique, based on coal surface properties, for highly dispersing catalysts in coal for gasification and to investigate the potential of using potassium carbonate and calcium acetate mixtures as catalysts for coal gasification. The work is focused on the elucidation of coal-catalyst precursor interactions in solution and the variables which control the adsorption and dispersion of coal gasification metal catalysts. In order to optimize coal-metal ion interaction… more
Date: January 1, 1990
Creator: Abotsi, G.M.K. & Bota, K.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Updated evaluation of polymer films for electrical insulation

Description: Several types of tests have been run on polymer film materials that could be useful for electrical insulation. The polymers studied were polyethylene terephtalate, polycarbonate, polysulfone, polyetherimide, ultrahigh-molecular-weight polyethylene, polyimide, polybutylene terephthalate, and a laminate of Kraft paper and polypropylene. Thermal aging tests were run to 60,000 h on several of the polymers, and the samples were evaluated by tensile tests, electrical breakdown tests, and immersion de… more
Date: August 1, 1990
Creator: McCoy, H. E. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Innovative clean coal technology (ICCT): Demonstration of Selective Catalytic Reduction (SCR) technology for the control of nitrogen oxide (NO sub x ) emissions from high-sulfur coal-fired boilers

Description: This project's objective is to demonstrate the selective catalytic reduction (SCR) process that removes nitrogen oxides (NOx) from the flue gas of boilers that burn US high-sulfur coal. The SCR technology involves the catalytic reduction of NH{sub 3} which is injected into the flue gas to react with NOx contained in the flue gas to produce molecular nitrogen (N{sub 2}) and water vapor. This quarter, work was initiated on the pilot plant ductwork layout, flue gas distribution and flow control co… more
Date: November 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NO sub x -char reactions: Kinetics and transport aspects

Description: The present project is motivated by the need to reduce NO{sub x} emissions from combustors, especially coal combustors. Reactions with carbon are known to be effective at reducing No to N{sub 2}, and remain interesting candidates in a wide variety of possible applications. These reactions are known to be important in reducing NO{sub x} emissions from fluidized bed coal combustors, in which the coal char itself serves as the reducing agent. The principal goal of this project is to develop a mech… more
Date: January 1, 1990
Creator: Calo, J.M. & Suuberg, E.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Kinetics and mechanisms of the reactions of alkyl radicals with oxygen and with complexes of Co(III), Ru(III), and Ni(III)

Description: The kinetics of the reactions of C{sub 2}H{sub 5} radical with Co(NH{sub 3}){sub 5}X{sup 2+}, Ru(NH{sub 3}){sub 5}X{sup 2+}, and Co(dmgH){sub 2} (X) (Y) (X = Br, Cl, N{sub 3}, SCN; Y = H{sub 2}O, CH{sub 3}CN) complexes were studied using laser flash photolysis of ethylcobalt complexes. The kinetics were obtained by the kinetic probe method. Some relative rate constants were also determined by a competition method based on ethyl halide product ratios. The kinetics of colligation reactions of a s… more
Date: October 8, 1990
Creator: Kelley, Douglas
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Sixth annual coal preparation, utilization, and environmental control contractors conference

Description: A conference was held on coal preparation, utilization and environmental control. Topics included: combustion of fuel slurries; combustor performance; desulfurization chemically and by biodegradation; coal cleaning; pollution control of sulfur oxides and nitrogen oxides; particulate control; and flue gas desulfurization. Individual projects are processed separately for the databases. (CBS).
Date: January 1, 1990
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

TRW utility demonstration unit

Description: The TRW Advanced Entrained Coal Combustor Demonstration Project consists of retrofitting Orange and Rockland (O R) Utility Corporation's Lovett Plant Unit No. 3 with four (4) slagging combustors which will allow the gas/oil unit to fire 2.5% sulfur coal. The slagging combustor process will provide NO{sub x} and SO{sub x} emissions that meet NSPS and New York State Environmental Standards. During this report period, activity continued to address the total program funding shortfall. Ideas and res… more
Date: January 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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