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Method for Reducing Sulfur Compounds In Sulfur Plant Effluent (Patent No: 975138)

Inventor: Amoco Canada Petroleum Company Ltd.

Location: Calgary

Comments: N/A

Description: [52] CLASS 23-343
[11] 975,138
[64] Reissue of No. 937,735 Dated Dec. 4, 1973
[54] METHOD FOR REDUCING SULFUR COMPOUNDS IN SULFUR PLANT EFFLUENT
[72] Hunt, Elton B. (Jr.) and Hujsak, Karol L., Tulsa, Oklahoma, U.S.A.
[73] Granted to Amoco Canada Petroleum Company Ltd., Calgary, Alberta, Canada
[21] Application No. 227,154.
[22] Filed May 16, 1975
[30] Priority date May 22, 1970 (39,844) U.S.A.
5 Claims

[57] In the recovery of sulfur from hydrogen sulfide-containing gases wherein the first of a series of reactors is operated under conventional Claus conditions, one or more of the remaining catalytic reactors in the sulfur plant are operated at temperatures of the order of from about 250° to about 400°F whereby free sulfur is deposited on the catalyst, regeneration of such catalyst is effected by heating a portion of the first reactor-condenser effluent to 4500-700°F and flowing the resultant hot gas through the deactivated catalyst bed to vaporize free sulfur therefrom and regenerate the catalyst. Before placing the freshly regenerated catalyst bed back on stream, it is cooled with unheated second reactor-condenser effluent to a temperature of from about 250° to about 400°F. Thereafter the above cycle is repeated.

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