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Investigations on catalyzed steam gasification of biomass

Description: The purpose of the study is to evaluate the technical and economic feasibility of producing specific gas products via the catalytic gasification of biomass. This report presents the results of research conducted from December 1977 to October 1980. The study was comprised of laboratory studies, process development, and economic analyses. The laboratory studies were conducted to develop operating conditions and catalyst systems for generating methane-rich gas, synthesis gases, hydrogen, and carbo… more
Date: January 1, 1981
Creator: Mudge, L. K.; Weber, S. L.; Mitchell, D. H.; Sealock, L. J. Jr. & Robertus, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regenerative process for desulfurization of high temperature combustion and fuel gases. Quarterly progress report No. 5, April 1--June 30, 1977

Description: The sulfation rate of reagent-grade monocalcium silicate is of the same order of magnitude as that of limestone and higher than that of reagent-grade calcium oxide. It has been confirmed that the sulfated monocalcium silicate is more regenerable than the sulfated lime, i.e., the regeneration rate is higher with the silicate. X-ray diffraction and IR absorption results indicate that silica is chemically bonded to the calcium sulfate in the sulfated calcium silicate. Construction of a micro-pilot… more
Date: January 1, 1977
Creator: Steinberg, M & Yang, R T
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regenerative Process for Desulfurization of High Temperature Combustion and Fuel Gases. Progress Report No. 14, October 1-December 31, 1979

Description: The characteristics of Portland Type III cement (PC III) as a potential sorbent for use in a regenerative process for desulfurization of coal in fluidized-bed combustion were examined. The sulfation rates for PC III + 5% amorphous SiO/sub 2/ at temperatures between 860 and 1100/sup 0/C and at 1 atm were studied thermogravimetrically, using a simulated combustion gas mixture containing 0.25% SO/sub 2/. The sulfation rates were found to be independent of temperature between 950 and 1050/sup 0/C. … more
Date: March 1, 1980
Creator: Albanese, A. S. & Sethi, D. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regenerative Process for Desulfurization of High Temperature Combustion and Fuel Gases. Quarterly Progress Report No. 8, January 1-March 31, 1978

Description: A highly reactive ..beta..-dicalcium silicate powder sample has been acquired from Professor D. Roy of Pennsylvania State University. We will use it in conjunction with our ash-binder pelletizing technique to form a highly regenerable and reactive sorbent for fluidized bed combustion. Other techniques of forming reactive silicates are also being studied. Simplified mathematical models have been developed for kiln regeneration based on the data with a small quartz rotary kiln reactor. The model … more
Date: January 1, 1978
Creator: Yang, R. T.; Albanese, A. S.; Chen, J. M.; Farber, G.; Kainz, F. B.; Pruzansky, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regenerative Process for Desulfurization of High Temperature Combustion and Fuel Gases. Quarterly Progress Report No. 7, October 1--December 31, 1977

Description: A method of pretreating limestone used in fluidized-bed combustion has been found and is under further development. The method entails spraying the stone with an aqueous solution of Fe/sup + +//Fe/sup + + +/SO/sub 3//sup - -//SO/sub 4//sup - -/ before it is fed to the combustor. One percent of iron coated on the stone approximately doubles the rate of SO/sub 2/ sorption. Fe/sub 2/O/sub 3/ not only catalyzes the rate, but also enhances the sorption capacity of the stone. The Brookhaven Regenerat… more
Date: January 1, 1977
Creator: Yang, R. T.; Albanese, A. S.; Chen, J. M.; Farber, G.; Kainz, F. B.; Pruzansky, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regenerative Process for Desulfurization of High Temperature Combustion and Fuel Gases. Quarterly Progress Report No. 6, July 1--September 30, 1977

Description: The Brookhaven Regeneration Process, which comprises reacting the sulfated limestone with fly ash from a FBC in a solid-solid contacting kiln-type reactor, has been shown to be more promising than other processes currently under development. Much improvement can be made by optimizing the operating conditions which are primarily: gas flow rate, degree of agitation (rpm), additives (both solids and gases, e.g. steam), types of carbon, etc. TGA kinetic studies also showed promising results. Cyclic… more
Date: January 1, 1977
Creator: Yang, R. T.; Albanese, A. S.; Chen, J. M.; Farber, G.; Kainz, F. B.; Pruzansky, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summary and assessment of METC zinc ferrite hot coal gas desulfurization test program, final report: Volume 2, Appendices

Description: The Morgantown Energy Technology Center (METC) has conducted a test program to develop a zinc ferrite-based high temperature desulfurization process which could be applied to fuel gas entering downstream components such as molten carbonate fuel cells or gas turbines. As a result of prior METC work with iron oxide and zinc oxide sorbents, zinc ferrite evolved as a candidate with the potential for high capacity, low equilibrium levels of H/sub 2/S, and structural stability after multiple regenera… more
Date: December 1, 1986
Creator: Underkoffler, V.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Materials compatibility during the chlorination of molten CaCl/sub 2/. CaO salts. [CaCl/sub 2/. CaO salt]

Description: As part of our effort to develop a semicontinuous PuO/sub 2/ reduction process, we are investigating promising materials for containing a 900/sup 0/C molten CaCl/sub 2/ . CaO chlorination reaction. We want the material to contain this reaction and to be reusable. We tested candidate materials in a simulated salt (no plutonium) using anhydrous HCl as the chlorinating agent. Data are presented on the performance of 36 metals and alloys, 9 ceramics, and 3 coatings.
Date: January 1, 1987
Creator: Rense, Charles E. C.; Fife, Keith W.; Bowersox, David F. & Ferran, Michelle D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fuel cell applied research: electrocatalysis and materials. Quarterly report, January 1-March 31, 1979

Description: In situ regeneration of surface areas of sintered carbon supported platinum electrodes in 85% H/sub 3/PO/sub 4/ at 150/sup 0/C was studied. The kinetics of oxygen reduction on platinum in trifluoromethane sulfonic acid was investigated. Overpotentials in solid oxide electrolyte fuel cells were studied. Results are presented and discussed. Also, a survey of the status of studies of phosphoric acid and molten carbonate fuel cells is described. (WHK)
Date: October 1, 1979
Creator: Srinivasan, S.; Isaacs, H. S.; McBreen, J.; O'Grady, W. E.; Olender, H.; Olmer, L. J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study of irradiated bone: Part III. /sup 99m/Tc pyrophosphate autoradiographic changes. [X rays; rabbits]

Description: The macroautoradiographic and microautoradiographic localization of /sup 99m/Tc-pyrophosphate (/sup 99m/TcPPi) was studied in x-irradiated bone of rabbits up to one year post-irradiation. In cortical bone, /sup 99m/TcPPi was concentrated on bone surfaces near vasculature. Both forming and resorbing bone surfaces were comparably labeled at 2 hrs post-injection. Uptake on the surface of sites of haversian bone remodeling was observed to be at least part of the increased /sup 99m/TcPPi observed in… more
Date: January 1, 1978
Creator: King, M. A.; Corriveau, O.; Casarett, G. W. & Weber, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Organic iodine removal from simulated dissolver off-gas streams using partially exchanged silver mordenite

Description: The removal of methyl iodide by adsorption onto silver mordenite was studied using a simulated off-gas from the fuel dissolution step of a nuclear fuel reprocessing plant. The methyl iodide adsorption of partially exchanged silver mordenite was examined for the effects of NO/sub x/, humidity, filter temperature, and degree of silver exchange. Partially exchanged silver mordenite, in general, achieved significantly higher silver utilizations than the fully exchanged material. Silver utilizations… more
Date: January 1, 1982
Creator: Jubin, R. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Summary and assessment of METC zinc ferrite hot coal gas desulfurization test program, final report: Volume 1

Description: The Morgantown Energy Technology Center (METC) has conducted a test program to develop a zinc ferrite-based high temperature desulfurization process which could be applied to fuel gas entering downstream components such as molten carbonate fuel cells or gas turbines. As a result of prior METC work with iron oxide and zinc oxide sorbents, zinc ferrite evolved as a candidate with the potential for high capacity, low equilibrium levels of H/sub 2/S, and structural stability after multiple regenera… more
Date: December 1, 1986
Creator: Underkoffler, V.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regenerative process for desulfurization of high temperature combustion and fuel gases. Quarterly progress report No. 11, October 1-December 31, 1978

Description: In the continuing search for more reactive calcium silicates, Portland cement, as an ingredient of concrete, has been identified to have favorable properties for sulfur absorption and regeneration. Various Portland cements have been studied for their reactivities for sulfation. Most of Portland cements showed equal or higher sorption reactivities than lime. Portland Type III had unusually high activity for a calcium-based sorbent. Furthermore, pellets could be formed from Portland Type III whic… more
Date: May 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparative Cost Estimates of Five Coal Utilization Processes

Description: Detailed capital and operating cost estimates were prepared for the generation of electric power in a new, net 500 MW (e), coal-burning facility by five alternative processes: conventional boiler with no control of SO/sub 2/ emissions, atmospheric fluidized bed steam generator (AFB), conventional boiler equipped with a limestone FGD system, conventional boiler equipped with magnesia FGD system, and coal beneficiation followed by a conventional boiler quipped with limestone FGD for part of the f… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal power and combustion. Quarterly report, January--March 1977

Description: ERDA's coal combustion and power program has focused on two major areas: Direct combustion of coal and advanced power systems. Efforts in the area of direct combustion are concentrated on: Development of atmospheric and pressurized systems capable of burning high-sulfur coal of all rank and quality in fluidized-bed combustors; development of advanced technology power systems to generate power more economically than present technology permits while using medium- and high-sulfur coal in an enviro… more
Date: December 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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