METHOD OF REMOVING HYDROGEN SULFIDE FROM FLOW OF GAS

摘要

A process for the removal of H2S from sour gaseous streams in which the sour gaseous stream is contacted with a solution containing solubilized iron chelates of a specified organic acid or acids, wherein the contacting is carried out in first and second contacting zones, the first contacting zone (3) being a gas-solution mixture formation zone and the second contacting zone (6) comprising a plurality of contacting sections (5, 7, 8 and 9) adapted to provide reaction of the H2S in the sour gaseous stream with the iron in the contacting solution without plugging due to deposition of sulphur.