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Oxidation/gasification of carbon residue on retorted oil shale. Final report

Description: Studies of the oxidation and gasification of oil shale char were extended to an investigation of the effects of mineral catalysis. Six shales with differing mineral compositions were studied, including samples from the saline zone in the Western Colorado and from the Antrim shales of Michigan. Oxidation kinetics data, corrected for mass transfer effects, were compared for all six samples. A high assay shale from Utah and a sample from the saline zone were found to have the highest oxidation rat… more
Date: January 16, 1984
Creator: Thomson, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of optimum electrolyte composition for molten carbonate fuel cells

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: January 1, 1987
Creator: Yuh, C. Y. & Pigeaud, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low temperature, sulfur tolerant homogeneous catalysts for the water-gas shift reaction

Description: The purpose of this report is to update and reorganize our recent review on homogeneous catalysis of the water-gas shift reaction (WGSR) based on recent literature publications and patents. This updated version will serve as a means of selecting 10 candidate catalyst systems for use in developing effective, sulfur-tolerant, low temperature WGSR catalysts. This report discusses the variations possible in the basic chemistry associated with WGSR catalytic cycles, including basic, acidic, and neut… more
Date: January 20, 1986
Creator: Laine, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Combined shift and methanation in a fluidized-bed reactor. Quarterly progress report, 1 April-30 June 1980

Description: Only one bench-scale reactor test was completed. The Harshaw Ni/Cu/Mo and UCI (composition undisclosed) catalysts were evaluated over a 12-day period at 800 F and a feed gas H/sub 2//CO ratio of 2/1. Initial conversions with both catalysts were about 33 percent; and the activities of both samples declined steadily during the test, with final conversion values in the 15 to 20 percent range. During this test, problems were experienced with water carryover into the Drierite traps, necessitating so… more
Date: July 1, 1980
Creator: Streeter, R C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sulfur tolerant anode materials

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: February 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Catalytic carbon membranes for hydrogen production

Description: Commercial carbon composite microfiltration membranes may be modified for gas separation applications by providing a gas separation layer with pores in the 1- to 10-nm range. Several organic polymeric precursors and techniques for depositing a suitable layer were investigated in this project. The in situ polymerization technique was found to be the most promising, and pure component permeation tests with membrane samples prepared with this technique indicated Knudsen diffusion behavior. The gas… more
Date: January 1, 1992
Creator: Damle, A.S. & Gangwal, S.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sulfur tolerant anode materials

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: May 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sulfur tolerant anode materials

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: February 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Methanol and methyl fuel catalysts. Final technical report, September 1980-August 1983

Description: Copper-based catalysts for alcohol synthesis were prepared, tested for catalytic activity and selectivity, and characterized. These catalysts include Cu/ZnO, Cu/Co/ZnO, Cu/Co/Cr/sub 2/O/sub 3/, Cu/Co/Cr/sub 2/O/sub 3//K/sub 2/O, and Cu/ZnO/KOH. The chromia-containing catalysts exhibited a low activity and selectivity, while the Cu/ZnO catalyst was verified to be a very active and selective methanol synthesis catalyst. Cobalt imparted a methanation function to the catalysts, while potassium supp… more
Date: December 1, 1983
Creator: Klier, K.; Herman, R.G. & Simmons, G.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Integrated High Temperature Coal-to-Hydrogen System with CO2 Separation

Description: A significant barrier to the commercialization of coal-to-hydrogen technologies is high capital cost. The purity requirements for H{sub 2} fuels are generally met by using a series of unit clean-up operations for residual CO removal, sulfur removal, CO{sub 2} removal and final gas polishing to achieve pure H{sub 2}. A substantial reduction in cost can be attained by reducing the number of process operations for H{sub 2} cleanup, and process efficiency can be increased by conducting syngas clean… more
Date: May 31, 2007
Creator: Ruud, James A.; Ku, Anthony; Ramaswamy, Vidya; Wei, Wei & Willson, Patrick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Combined shift and methanation in a fluidized-bed reactor. Quarterly progress report, 1 January 1980-31 March 1980. BCR report L-1091

Description: Construction of the new bench-scale reactor system was completed during this report period, and the system was put into operation. A bench-scale activity test, using the older life-test apparatus, was conducted to evaluate two samples of a Ni/Mo catalyst with a stoichiometric synthesis gas (H/sub 2//CO = 3/1). One of the samples had been regenerated, by heating in air at 450/sup 0/C, to remove a significant amount of carbon (18 weight percent) that had been deposited in an earlier PEDU test. Th… more
Date: April 1, 1980
Creator: Streeter, R C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ethanol synthesis and water gas shift over bifunctional sulfide catalysts

Description: The objective of the proposed research is to investigate and develop a novel catalytic process for the conversion of coal-derived synthesis gas into high octane C{sub 1}-C{sub 4} alcohols, especially ethanol, by a highly selective and efficient pathway. (VC)
Date: March 1, 1992
Creator: Klier, Kamil & Herman, Richard G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gasoline from coal in the State of Illinois: feasibility study

Description: A detailed study was made of the feasibility of producing approximately 12,000 barrels per day of gasoline from high sulfur Illinois coal. The project was to be based on indirect liquefaction of coal by producing methanol and converting the methanol to raw gasoline. The plant design was based on proven processes: including atmospheric Koppers-Totzek type coal gasification, Rectisol gas purification, Claus and Scot sulfur recovery, and ICI low pressure methanol synthesis, all of which have been … more
Date: January 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An innovative catalyst system for slurry-phase Fischer-Tropsch synthesis: Cobalt plus a water-gas-shift catalyst

Description: The feasibility of using a mechanical mixture of a Co/MgO/SiO{sub 2} Fischer-Tropsch catalyst and a Cu-ZnO/Al{sub 2}O{sub 3} water-gas-shift (WGS) catalyst for hydrocarbon synthesis in a slurry reactor has been established. Such a mixture can combine the superior product distribution from cobalt with the high activity for the WGS reaction characteristic of iron. Weight ratios of Co/MgO/SiO{sub 2} to Cu-ZnO/Al{sub 2}O{sub 3} of 0.27 and 0.51 for the two catalysts were studied at 240{degrees}C, 0… more
Date: July 1, 1991
Creator: Satterfield, C. N.; Yates, I. C. & Chanenchuk, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computational Chemistry-Based Identification of Ultra-Low Temperature Water-Gas-Shift Catalysts

Description: The current work seeks to identify novel, catalytically-active, stable, poison-resistant LWGS catalysts that retain the superior activity typical of conventional Cu catalysts but can be operated at similar or lower temperatures. A database for the Binding Energies (BEs) of the LWGS relevant species, namely CO, O and OH on the most-stable, close-packed facets of a set of 17 catalytically relevant transition metals was established. This BE data and a database of previously established segregation… more
Date: August 31, 2008
Creator: Mavrikakis, Manos
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase I: the pipeline-gas demonstration plant. Demonstration plant engineering and design. Volume 1. Executive summary

Description: The Phase I engineering and design of a demonstrated plant under Contract No. EF-77-C-01-2542 between Conoco Inc. and the US Department of Energy has been completed. The Demonstration Plant is designed to produce 19 million standard cubic feet per day of pipeline quality gas from 1,257 tons per day of Ohio No. 9 coal. The process to be demonstrated is based on the British Gas/Lurgi slagging gasifier which reacts coal with steam and oxygen at elevated temperatures and pressures to produce a crud… more
Date: unknown
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Combined shift and methanation in a fluidized-bed reactor. Quarterly progress report, 1 October-31 December 1979. BCR report L-1061

Description: Construction of a new bench-scale methanation reactor is in progress. This system will provide the capability of adding steam to the feed gas. A bench-scale activity test, employing four samples of a Ni/Mo catalyst, was conducted using the existing life test system. Results showed that a spent catalyst sample containing 18 percent carbon was still as active as the fresh, as-received catalyst, thus confirming an earlier observation based on the results of PEDU Test No. 37. The activity of one sa… more
Date: January 1, 1980
Creator: Streeter, R C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of internal reforming carbonate fuel cell stack technology

Description: Activities under this contract focused on the development of a coal-fueled carbonate fuel cell system design and the stack technology consistent with the system design. The overall contract effort was divided into three phases. The first phase, completed in January 1988, provided carbonate fuel cell component scale-up from the 1ft{sup 2} size to the commercial 4ft{sup 2} size. The second phase of the program provided the coal-fueled carbonate fuel cell system (CGCFC) conceptual design and carri… more
Date: October 1, 1990
Creator: Farooque, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of environmental control technologies for Koppers-Totzek, Winkler, and Texaco coal gasification systems

Description: The US Department of Energy, Division of Environmental Control Technology, supports the Assistant Secretary for Environment in discharging responsibilities for environmental control aspects of technology in use and development. The coal gasification technologies employed by Winkler, Koppers-Totzek (K-T) and Texaco are described. Evaluation of the status of these technologies for control of major environmental pollutants indicates that a minimum risk to the environment is involved. The complete … more
Date: September 1, 1979
Creator: Mudge, L. K. & Sealock, L. J. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biological Conversion of Synthesis Gas Culture Development

Description: Research continues on the conversion of synthesis by shift reactions involving bacteria. Topics discussed here include: biological water gas shift, sulfur gas utilization, experimental screening procedures, water gas shift studies, H{sub 2}S removal studies, COS degradation by selected CO-utilizing bacteria, and indirect COS utilization by Chlorobia. (VC)
Date: March 1, 1992
Creator: Klasson, K. T.; Basu, R.; Johnson, E. R.; Clausen, E. C. & Gaddy, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SRC-I quarterly technical report, July-September 1980

Description: Processes in the SRC-I Demonstration plant are considered with respect to engineering, alternatives and comparative evaluations as follows: hydrogen production by coal gasification and gasification of residues, optimium pressure of hydrogen produced, shift processes, solidification of solvent-refined coal, effect of variations in coal and degree of coal preparation on coal liquefaction, characterization of various waste waters and comparative evaluation of three waste water treatment processes … more
Date: January 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Untangling the water gas shift from Fischer-Tropsch: a Gordian knot. [185 references]

Description: The water gas shift reaction is an integral part of the Fischer-Tropsch synthesis. Although it may appear convenient to consider the water gas shift a separate reaction, in some cases, a detailed examination of the mechanism indicates theat the water gas shift and other synthesis gas reactions share several elementary reactions. Experimental support for the relevant elementary reactions for the water gas shift on metals, metal oxides, and in homogeneous solution is examined, from both surface a… more
Date: January 1, 1983
Creator: Rofer-Depoorter, C.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The development of precipitated iron catalysts with improved stability

Description: The goal of this program is to identify the chemical principles governing the deactivation of precipitated iron catalysts during Fischer-Tropsch synthesis and to use these chemical principles in the design of catalysts suitable for slurry reactors. This report covers testing an iron catalyst. During the last quarter, a new precipitated iron catalyst was prepared and tested in the slurry autoclave reactor at various conditions. This catalyst did not noticeably deactivate during 1250 hours of tes… more
Date: January 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Shift conversion and methanation in coal gasification: bench-scale evaluation of a sulfur-resistant catalyst. Final report. [Iridium-promoted nickel catalysts supported or aluminium oxide]

Description: The results of this study demonstrate that the Ir-promoted Ni/Al/sub 2/O/sub 3/ catalyst possesses several valuable and superior characteristics when used for catalytic methanation under typical industrial conditions. These properties include: higher activity by a factor of > 2 than that of the unpromoted Ni/Al/sub 2/O/sub 3/ catalyst; enhanced resistance to deactivation by hydrogen sulfide during exposure to contaminated feedstock, as manifested by the prolonged high methanation activity and e… more
Date: October 24, 1980
Creator: Wood, B. J.; McCarty, J. G.; Sheridan, D.; Ablow, C. M. & Wise, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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