B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/347, 23/356
B01D 53/14 (2006.01) C01B 3/52 (2006.01) C10K 1/12 (2006.01)
Patent
CA 1176824
ABSTRACT OF THE DISCLOSURE A process for removing acid gases such as CO2 and H2S from gas streams using a cyclic aqueous alkaline scrubbing solution which is circulated between an absorp- tion and regeneration stage is disclosed. This process is improved by integrating within this cyclic system a pro- cess scheme wherein condensed steam having gaseous impuri- ties dissloved therein is recovered from the feed gas and subjected to a pressure below which scrubbing solution regeneration takes place. While maintaining this pressure, the process condensate is heated, boiled and stripped to evolve a vaporous mixture comprising steam and gaseous impurities which are compressed and introduced into the regeneration stage. By this process, useful work is per- formed by low temperature process streams thereby improv- ing the overall efficiency of the cyclic process.
418800
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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