Process for separating, especially in multiple stages, acid components such as CO2, HCN and specifically H2S, from gases, especially from coke oven gases, by means of ammonia recirculation scrubbing

摘要

A process of separating in multiple stages acid components in coke oven gas such as CO2, HCN and particularly H2S by ammonia scrubbing wherein the ammonia used in scrubbing is deacidified to remove the acid components and is recirculated to the scrubbing process at least in part as substantially pure liquid ammonia.