Process for the removal of SO2 in a gas stream

摘要

The present invention relates to a process for the reducing the amount of SO2 in a SO2 and CO containing gas stream, wherein the gas stream is contacted with a Claus catalyst; a hydrogenation catalyst, and a hydrolysing catalyst. In a process according to the invention the contacting with the hydrolysing catalyst is carried out at a temperature below 270 DEG C.