Patent ID: 9480956
Filing Date: 2016-11-01
CPC Classification: B01J,C01B

Claim Text:
1. A method for recovering and using waste hydrogen sulfide gas generated in a hydrogen sulfide gas production plant including at least a reaction facility that generates hydrogen sulfide gas from sulfur and hydrogen gas, a plurality of cooling facilities, which are used alternately, that cools the generated hydrogen sulfide gas, and a sulfur removing facility that removes sulfur included in the hydrogen sulfide gas and supplies the hydrogen sulfide gas from which the sulfur has been removed to a process plant where hydrogen sulfide gas is used, wherein the hydrogen sulfide gas production plant further includes a pipe that recovers the waste hydrogen sulfide gas generated in and discharged from the cooling facility that has been replaced and stopped temporarily, the pipe has one end connected to the process plant, and the discharged waste hydrogen sulfide gas is recovered and the recovered waste hydrogen sulfide gas is supplied to the process plant through the pipe.