Kinetics of Mn-based sorbents for hot coal gas desulfurization. Quarterly report, September 15 - December 15, 1996

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Description

Manganese-based sorbents have been investigated for the removal of hydrogen sulfide (the primary sulfur bearing compound) from hot coal gases prior to its use in combined cycle turbines. Four formulations of Mn-based sorbents were tested in an ambient-pressure fixed-bed reactor to determine steady state H{sub 2}S concentrations, breakthrough times and effectiveness of the sorbent when subjected to cyclic sulfidation and regeneration testing. In a previous report, the sulfidation results were presented. Manganese-based sorbents with molar ratios > 1:1 Mn:Substrate were effective in reducing the H{sub 2}S concentration in simulated coal gases to less than 100 ppmv over five cycles. Actual ... continued below

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22 p.

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Hepworth, M.T. December 31, 1996.

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Description

Manganese-based sorbents have been investigated for the removal of hydrogen sulfide (the primary sulfur bearing compound) from hot coal gases prior to its use in combined cycle turbines. Four formulations of Mn-based sorbents were tested in an ambient-pressure fixed-bed reactor to determine steady state H{sub 2}S concentrations, breakthrough times and effectiveness of the sorbent when subjected to cyclic sulfidation and regeneration testing. In a previous report, the sulfidation results were presented. Manganese-based sorbents with molar ratios > 1:1 Mn:Substrate were effective in reducing the H{sub 2}S concentration in simulated coal gases to less than 100 ppmv over five cycles. Actual breakthrough time for formulation C6-2-1100 was as high as 73% of breakthrough time based on wt% Mn in sorbent. In this report, the regeneration results will be presented. Regeneration tests determined that loaded pellets can be fully regenerated in air/steam mixture at 750{degrees}C with minimal sulfate formation. 16 refs., 9 figs., 5 tabs.

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22 p.

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OSTI as DE97051422

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  • Other Information: PBD: [1996]

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  • Other: DE97051422
  • Report No.: DOE/PC/94212--T9
  • Grant Number: FG22-94PC94212
  • DOI: 10.2172/469625 | External Link
  • Office of Scientific & Technical Information Report Number: 469625
  • Archival Resource Key: ark:/67531/metadc675736

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  • December 31, 1996

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  • July 25, 2015, 2:21 a.m.

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  • Nov. 11, 2015, 12:55 p.m.

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Hepworth, M.T. Kinetics of Mn-based sorbents for hot coal gas desulfurization. Quarterly report, September 15 - December 15, 1996, report, December 31, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc675736/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.