REMOVAL OF SULFUR COMPOUNDS FROM A GAS STREAM UTILISING A ZINC CONTAINING SORBENT

摘要

Disclosed is an S Zorb type process for removing sulphur compounds such as hydrogen sulphide which comprises: (a) contacting a sulfur-containing gas stream with an initial sorbent in a sorption zone to thereby produce an sulfur-depleted product stream and a sulfur-laden sorbent, wherein said initial sorbent comprises an SZorb Zinc / promoter metal combination; and (b) contacting at least a portion of said sulphur-laden sorbent with a regeneration gas stream in a regeneration zone under regeneration conditions to thereby produce a regenerated sorbent and an off-gas stream, wherein said contacting of step (b) includes introducing said regeneration gas into said regeneration zone at an initial standard gas hourly space velocity (SGHSV) in the range of from about 100 to about 100,000 per hour , wherein said contacting of step (b) includes increasing the SGHSV of said regeneration gas to a final SGHSV that is at least 1,000 per hour higher than said initial SGHSV.