Patent ID: 8475570
Filing Date: 2013-07-02
Classification: B01D,C01B,C10K,Y02C,Y02P

Abstract:
1. A process for producing a purified gas from a feed gas comprising H 2 S, CO 2 and a contaminant of either HCN or COS, or both, the process comprising the steps of: (a) contacting the feed gas with a HCN/COS hydrolysis sorbent in the presence of water in a HCN/COS hydrolysis unit, thereby obtaining gas depleted in the contaminant; (b) contacting the gas depleted in the contaminant with an absorbing liquid in an H (c) heating and de-pressurising at least part of the absorbing liquid rich in H (d) contacting the absorbing liquid enriched in H (e) leading at least part of the hot flash gas enriched in CO