Use of Z-Sorb process as catalytic incinerator for tail gas from sulfur plants

摘要

An apparatus and process for removing and incinerating sulfur from tail gas being emitted from a Claus Recovery Sulfur Unit (SRU) or a Tail Gas Clean-up Unit (TGCU) is provided. The gas is processed in a Z- Sorb. TM. type sulfur absorber wherein the off-gas, after the hydrogen sulfide is removed, is combusted and used as a regenerative gas for a second absorber, that has been used to sorb hydrogen sulfide out of a gas, so as to release sulfur dioxide from the second absorber--in lieu of "process to substantially convert the hydrogen sulfide to sulfur dioxide, toward precluding the need for combustion of the hydrogen sulfide.