Method for Recovery of Elemental Sulfur from Sour Gas (Patent No: 960436)

Inventor: Amoco Canada Petroleum Company Ltd.

Location: Calgary

Comments: N/A

Description: [52] CLASS 23-332
[11] 960,436
[54] METHOD FOR RECOVERY OF ELEMENTAL SULFUR FROM SOUR GAS
[72] Goddin,Clifton S.(Jr.) and Montgomery, Neal R, Tulsa, Oklahoma, U.S.A.
[73] Granted to Amoco Canada Petroleum Company Ltd, Calgary, Alberta, Canada.
[21] Application No. 138,298,
[22] filed Mar. 28, 1972
[30] Priority date June 21, 1971 (155,050) U.S.A.
5 Claims

[57] This process takes advantage of the favorable equilibrium that exists for the catalytic reaction of H2S with SO2 at temperatures of the order of 270° to about 300° F while at the same time offering considerable flexibility in the manner in which the various streams can be handled. Because of the fact that one of the reactors in a multi-reactor plant can always be operated at an effluent temperature of at least 600°F the process assures good clean up of feed streams containing CS2 and COS. Also, valving and piping are simplified by allowing one reactor to operate as a conventional Claus reactor while the other two reactors operate alternately at temperatures above and below the sulfur dew point.