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Enhanced Durability And Reactivity For Zinc Ferrite Desulfurization Sorbent
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Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent written by and published by . This book was released on 1987 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research Development Center (AMAX R D) has been investigating methods for improving the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hog coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. The reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point in a bench-scale fixed-bed reactor. The durability may be defined as the ability of the sorbent to maintain its reactivity and other important physical characteristics such as size, strength, and specific surface area during 10 cycles of sulfidation and regeneration. Two base case sorbents, spherical pellets and cylindrical extrudes used in related METC sponsored projects, are being used to provide a basis for the comparison of physical characteristics and chemical reactivity.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Volume 2, Single Particle Kinetic Studies of Sulfidation and Regeneration Reactions of Candidate Zinc Ferrite Sorbents by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Volume 2, Single Particle Kinetic Studies of Sulfidation and Regeneration Reactions of Candidate Zinc Ferrite Sorbents written by and published by . This book was released on 1989 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such as size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Volume 1, Bench-scale Testing and Analysis by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Volume 1, Bench-scale Testing and Analysis written by and published by . This book was released on 1989 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 4, July--September 1987 by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 4, July--September 1987 written by and published by . This book was released on 1987 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for improving the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hog coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. The reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point in a bench-scale fixed-bed reactor. The durability may be defined as the ability of the sorbent to maintain its reactivity and other important physical characteristics such as size, strength, and specific surface area during 10 cycles of sulfidation and regeneration. Two base case sorbents, spherical pellets and cylindrical extrudes used in related METC sponsored projects, are being used to provide a basis for the comparison of physical characteristics and chemical reactivity.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report No. 3, April--June 1987 by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report No. 3, April--June 1987 written by and published by . This book was released on 1987 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 7, April--June 1988 by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 7, April--June 1988 written by and published by . This book was released on 1988 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 2, January--March 1987 by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 2, January--March 1987 written by and published by . This book was released on 1987 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 8, July--September 1988 by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 8, July--September 1988 written by and published by . This book was released on 1988 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 9, October--December 1988 by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report 9, October--December 1988 written by and published by . This book was released on 1989 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report No. 1, October--December 1986 by :
Download or read book Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent. Quarterly Technical Progress Report No. 1, October--December 1986 written by and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: AMAX Research & Development Center (AMAX R & D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Book Synopsis Enhanced Durability of High-temperature Desulfurization Sorbents for Moving-bed Applications. Base Program by :
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.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhanced Durability of High-temperature Desulfurization Sorbents for Moving-bed Applications. Option 2 Program by :
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.
Book Synopsis Enhanced Durability of High-temperature Desulfurization Sorbents for Fluidized-bed Applications. [Zinc Titanate]. by :
Download or read book Enhanced Durability of High-temperature Desulfurization Sorbents for Fluidized-bed Applications. [Zinc Titanate]. written by and published by . This book was released on 1992 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this project are to identify and demonstrate methods for enhancing long-term chemical reactivity and attrition resistance of zinc ferrite and zinc titanate sorbents to be employed for desulfurization of hot coal-derived gases in a high-temperature, high-pressure (HTHP) fluid-bed reactor. The sorbent formulation specified for study during the base period of this project was zinc ferrite. Zinc titanate sorbents are being studied under two options to the base contract. Specific objectives of the zinc titanate sorbent development work are the following: The effect of following process variables was investigated o the performance of zinc titanate sorbents: Method of sorbent preparation, Composition of fuel gas, Zn to Ti ratio of the sorbent, Sulfidation temperature, and Superficial gas velocity. The effect of first three variables has been covered in RTI's 1991 paper (Gupta and Gangwal, 1991b), while the effect of temperature and superficial gas velocity is described here.
Book Synopsis Enhanced Durability of Desulfurization Sorbents for Fluidized-bed Applications by :
Download or read book Enhanced Durability of Desulfurization Sorbents for Fluidized-bed Applications written by and published by . This book was released on 1991 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced integrated gasification combined cycle (IGCC) power systems require the development of high-temperature desulfurization sorbents capable of removing hydrogen sulfide from coal gasifier down to very low levels. The objective of this investigation was to identify and demonstrate methods for enhancing the long-term chemical reactivity and mechanical strength of zinc ferrite, a leading regenerable sorbent, for fluidized-bed applications. Fluidized sorbent beds offer significant potential in IGCC systems because of their ability to control the highly exothermic regeneration involved. However, fluidized beds require a durable, attrition-resistant sorbent in the 100--300 [mu]m size range. A bench-scale high-temperature, high- pressure (HTHP) fluidized-bed reactor (7.6-cm I.D.) system capable of operating up to 24 atm and 800°C was designed, built and tested. A total of 175 sulfidation-regeneration cycles were carried out using KRW-type coal gas with various zinc ferrite formulations. A number of sorbent manufacturing techniques including spray drying, impregnation, crushing and screening, and granulation were investigated. While fluidizable sorbents prepared by crushing durable pellets and screening had acceptable sulfur capacity, they underwent excessive attrition during multicycle testing. The sorbent formulations prepared by a proprietary technique were found to have excellent attrition resistance and acceptable chemical reactivity during multicycle testing. However, zinc ferrite was found to be limited to 550°C, beyond which excessive sorbent weakening due to chemical transformations, e.g., iron oxide reduction, was observed.
Book Synopsis Enhanced Durability of High-temperature Desulfurization Sorbents for Moving-bed Applications by :
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.
Book Synopsis Regeneration and Durability of Advanced Zinc Ferrite Sorbent for Hot Coal Gas Desulfurization by :
Download or read book Regeneration and Durability of Advanced Zinc Ferrite Sorbent for Hot Coal Gas Desulfurization written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, we investigate the regeneration characteristics, desulfurization performance after regeneration and the durability of zinc ferrite sorbent in the desulfurization/regeneration cycles.
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