Process of desulfurizing a gas mixture which contains h2s,...

Details Process of desulfurizing a gas mixture which contains h2s,... Process of desulfurizing a gas mixture which contains h2s,...

B - Operations, Transporting

01

D

B01D 53/34 (2006.01) B01D 53/14 (2006.01)

Patent

CA 2050407

- 12 - ABSTRACT The gas mixture is contacted in a scrubbing zone with a scrubbing solution which consists mainly of at least one N-alkylsubstituted lactam and contains 1 to 10 % by weight water. Temperatures in the range from 0 to 50 °C are maintained in the scrubbing zone. Ammonia and/or methylamine is fed as a catalyst to the scrubbing zone at a rate of 5 to 100 moles per cubic meter of the scrubbing solution. As a result, at least 50% of the COS fed to the scrubbing zone are reacted by hydrolysis.

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