DEVELOPMENT OF ADVANCED HOT-GAS DESULFURIZATION PROCESSES

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The techniques employed in this project have successfully demonstrated the feasibility of preparing sorbents that achieve greater than 99% H{sub 2}S removal at temperatures 480 C and that retain their activity over 50 cycles. Fundamental understanding of phenomena leading to chemical deactivation and high regeneration light-off temperature has enabled us to successfully prepare and scale up a FHR-32 sorbent that showed no loss in reactivity and capacity over 50 cycles. This sorbent removed H{sub 2}S below 80 ppmv and lighted-off nicely at 480 C during regeneration. Overall the test is a success with potential for an optimized FHR-32 to be ... continued below

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43 pages

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Jothimurugesan, K. & Gangwal, Santosh K. December 1, 2000.

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The techniques employed in this project have successfully demonstrated the feasibility of preparing sorbents that achieve greater than 99% H{sub 2}S removal at temperatures 480 C and that retain their activity over 50 cycles. Fundamental understanding of phenomena leading to chemical deactivation and high regeneration light-off temperature has enabled us to successfully prepare and scale up a FHR-32 sorbent that showed no loss in reactivity and capacity over 50 cycles. This sorbent removed H{sub 2}S below 80 ppmv and lighted-off nicely at 480 C during regeneration. Overall the test is a success with potential for an optimized FHR-32 to be a candidate for Sierra-Pacific. An advanced attrition resistant hot-gas desulfurization sorbent that can eliminate the problematic SO{sub 2} tail gas and yield elemental sulfur directly has been developed. Attrition resistant Zn-Fe sorbent (AHI-2) formulations have been prepared that can remove H{sub 2}S to below 20 ppmv from coal gas and can be regenerated using SO{sub 2} to produce elemental sulfur.

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43 pages

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OSTI as DE00786527

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  • Other Information: PBD: 1 Dec 2000

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  • Report No.: FG26-97FT97276--06
  • Grant Number: FG26-97FT97276
  • DOI: 10.2172/786527 | External Link
  • Office of Scientific & Technical Information Report Number: 786527
  • Archival Resource Key: ark:/67531/metadc719070

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  • December 1, 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • March 24, 2016, 7:10 p.m.

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Jothimurugesan, K. & Gangwal, Santosh K. DEVELOPMENT OF ADVANCED HOT-GAS DESULFURIZATION PROCESSES, report, December 1, 2000; Pittsburgh, Pennsylvania. (digital.library.unt.edu/ark:/67531/metadc719070/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.