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Author : M. C. Woods
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (412 download)
Download or read book Reaction Kinetics and Simulation Models for Novel High-temperature Desulfurization Sorbents written by M. C. Woods and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 754 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Aysel T. Atimtay
Publisher : Springer Science & Business Media
ISBN 13 : 3642589774
Total Pages : 409 pages
Book Rating : 4.6/5 (425 download)
Download or read book Desulfurization of Hot Coal Gas written by Aysel T. Atimtay and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic and environmental requirements for advanced power generating systems demand the removal of corrosive and other sulfurous compounds from hot coal gas. After a brief account of the world energy resources and an overview of clean coal technologies, a review of regenerable metal oxide sorbents for cleaning the hot gas is provided. Zinc oxide, copper oxide, calcium oxide, manganese oxide based as well as supported and mixed metal oxide sorbents are treated. Performance analysis of these sorbents, effects of various parameters on the desulfurization efficiency, kinetics of sulfidation and regeneration reactions, sulfiding and regeneration mechanisms are discussed. Two chapters present recent results in the direct production of elemental sulfur from regeneration or SO2-rich gases.
Download or read book Disney's Winnie the Pooh : Seasons of Giving written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Clift
Publisher : Springer Science & Business Media
ISBN 13 : 9401121729
Total Pages : 692 pages
Book Rating : 4.4/5 (11 download)
Download or read book Gas Cleaning at High Temperatures written by R. Clift and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2nd International Symposium
Author :
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (873 download)
Download or read book Mechanistic and Kinetic Studies of High-temperature Coal Gas Desulfurization Sorbents written by and published by . This book was released on 1991 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this project was to investigate the properties of and evaluate mixed oxides of zinc and titanium for hot fuel gas desulfurization. Uncombined ZnO was also investigated as a base case. Detailed investigation of the reduction and sulfidation reactions of Zn-Ti-O sorbents was performed. The intrinsic kinetics and the product layer diffusion rates in reduction and sulfidation were determined. Kinetic experiments with sorbents containing various Zn/Ti atomic ratios were performed. Chemical phase and structural transformations were followed by various methods. The results were compared to similar experiments performed with ZnO. The purpose of these experiments was to determine how the presence of titanium dioxide affects the reduction and sulfidation of ZnO. This information would be used to identify and select the sorbent composition that gives the best combination of low reduction rate and acceptable sulfidation performance at temperatures exceeding 600°C. (VC).
Author :
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ISBN 13 :
Total Pages : 908 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.
Author : D. W. Geiling
Publisher :
ISBN 13 :
Total Pages : 582 pages
Book Rating : 4.:/5 (31 download)
Download or read book Proceedings of the Advanced Research and Technology Development Direct Utilization, Instrumentation and Diagnostics Contractors' Review Meeting written by D. W. Geiling and published by . This book was released on 1990 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bench-scale Testing of Novel High-temperature Desulfurization Sorbents written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Extrudates of regenerable mixed-metal oxide sorbents including zinc ferrite, copper-modified zinc ferrite, zinc titanate, copper aluminate, copper-iron aluminate, and copper manganate were prepared and tested for their potential to remove hydrogen sulfide (H/sub 2/S) from coal gasifier gas in a high-temperature high-pressure (HTHP) fixed-bed reactor. The zinc containing sorbents were found to be more promising than those containing combinations of copper, aluminum, iron, and manganese. Reductions in H/sub 2/S concentration were achieved depending on sorbent, reactor temperature, and steam concentration. The copper-modified zinc ferrite sorbent reduced the H/sub 2/S concentration to less than 1 ppmv at up to 1100/degree/F with 20 volume % steam in the gas. The zinc ferrite sorbent showed no apparent loss in capacity over 15 sulfidation-regeneration cycles but underwent significant strength reduction in a coal-derived gas with 15% or less steam due to soot formation. Zinc titanate exhibited excellent strength and capacity retention at steam levels as low as 5% and temperatures as high as 1350/degree/F. 13 refs., 64 figs., 75 tabs.
Author :
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ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (685 download)
Download or read book Mechanistic and Kinetic Studies of High-temperature Coal Gas Desulfurization Sorbents. Final Report, July 1988--July 1991 written by and published by . This book was released on 1991 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this project was to investigate the properties of and evaluate mixed oxides of zinc and titanium for hot fuel gas desulfurization. Uncombined ZnO was also investigated as a base case. Detailed investigation of the reduction and sulfidation reactions of Zn-Ti-O sorbents was performed. The intrinsic kinetics and the product layer diffusion rates in reduction and sulfidation were determined. Kinetic experiments with sorbents containing various Zn/Ti atomic ratios were performed. Chemical phase and structural transformations were followed by various methods. The results were compared to similar experiments performed with ZnO. The purpose of these experiments was to determine how the presence of titanium dioxide affects the reduction and sulfidation of ZnO. This information would be used to identify and select the sorbent composition that gives the best combination of low reduction rate and acceptable sulfidation performance at temperatures exceeding 600°C. (VC).
Author :
Publisher :
ISBN 13 :
Total Pages : 1094 pages
Book Rating : 4.:/5 (42 download)
Download or read book Proceedings ... Annual Pittsburgh Coal Conference written by and published by . This book was released on 1990 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (727 download)
Download or read book Enhanced Durability of High-temperature Desulfurization Sorbents for Moving-bed Applications written by and published by . This book was released on 1991 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this contract was to identify and test fabrication methods and sorbent chemical compositions that enhance the long-term chemical reactivity and mechanical strength of zinc ferrite and other novel sorbents for moving-bed, high-temperature desulfurization of coal-derived gases. Desired properties to be enhanced for moving-bed sorbent materials are: (1) high chemical reactivity (sulfur absorption rate and total sulfur capacity), (2) high mechanical strength (pellet crush strength and attrition resistance), and (3) suitable pellet morphology (e.g., pellet size, shape, surface area, and average specific pore volume). In addition, it is desired to maintain the sorbent properties over extended cyclic use in moving- bed systems.
Author :
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (727 download)
Download or read book Enhanced Durability of High-temperature Desulfurization Sorbents for Moving-bed Applications. Base Program written by and published by . This book was released on 1991 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this contract was to identify and test fabrication methods and sorbent chemical compositions that enhance the long-term chemical reactivity and mechanical strength of zinc ferrite and other novel sorbents for moving-bed, high-temperature desulfurization of coal-derived gases. Desired properties to be enhanced for moving-bed sorbent materials are: (1) high chemical reactivity (sulfur absorption rate and total sulfur capacity), (2) high mechanical strength (pellet crush strength and attrition resistance), and (3) suitable pellet morphology (e.g., pellet size, shape, surface area, and average specific pore volume). In addition, it is desired to maintain the sorbent properties over extended cyclic use in moving- bed systems.
Author : Gary D. Focht
Publisher :
ISBN 13 :
Total Pages : 522 pages
Book Rating : 4.:/5 (215 download)
Download or read book High Temperature Coal-gas Desulfurization written by Gary D. Focht and published by . This book was released on 1988 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract.
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ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (685 download)
Download or read book Enhanced Durability of High-temperature Desulfurization Sorbents for Moving-bed Applications. Option 2 Program written by and published by . This book was released on 1993 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most advantageous configurations of the integrated gasification combined cycle (IGCC) power system is coupling it with a hot gas cleanup for the more efficient production of electric power in an environmentally acceptable manner. In conventional gasification cleanup systems, closely heat exchangers are necessary to cool down the fuel gases for cleaning, sometimes as low as 200--300°F, and to reheat the gases prior to injection into the turbine. The result is significant losses in efficiency for the overall power cycle. High-temperature coal gas cleanup in the IGCC system can be operated near 1000°F or higher, i.e., at conditions compatible with the gasifier and turbine components, resulting is a more efficient overall system. GE is developing a moving-bed, high-temperature desulfurization system for IGCC power systems in which mixed-metal oxides are currently being used as desulfurization sorbents. The objective of this contract is to identify and test fabrication methods and sorbent chemical compositions that enhance the long-term chemical reactivity and mechanical durability of zinc ferrite and other novel sorbents for moving-bed, high-temperature desulfurization of coal-derived gases. Zinc ferrite was studied under the base program of this contract. In the next phase of this program novel sorbents, particularly zinc titanate-based sorbents, are being studied under the remaining optional programs. This topical report summarizes only the work performed under the Option 2 program. In the course of carrying out the program, more than 25 zinc titanate formulations have been prepared and characterized to identify formulations exhibiting enhanced properties over the baseline zinc titanate formulation selected by the US Department of Energy.
Author : Abhijit Ghosh-Dastidar
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (463 download)
Download or read book Ultrafast Kinetics of Sulfur Dioxide/sorbent Reactions at High Temperatures written by Abhijit Ghosh-Dastidar and published by . This book was released on 1993 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (417 download)
Download or read book Spokane's Golden Jubilee written by and published by . This book was released on 1931 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
