Process of desulfurizing gases

Details Process of desulfurizing gases Process of desulfurizing gases

B - Operations, Transporting

01

D

23/344

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

Patent

CA 1296161

ABSTRACT OF THE DISCLOSURE: Two different gases, which contain sulfur compounds and CO2, are desulfurized with a physically acting solvent. The first gas is treated with the solvent in a first scrubbing zone, in which the sulfur compounds, particularly H2S and COS, are subst. compl. removed and part of the CO2 content in the gas is dissolved. At least part of the laden solvent leaving the first scrubbing zone is fed to a second scrubbing zone, which is supplied with the second gas, which has a lower CO2 content than the first gas. The second gas is partly desulfurized in the second scrubbing zone and in a third scrubbing zone is subsequent- ly treated with a solvent which is virtually free of sulfur compounds. The laden solvent leaving the third scrubbing zone is preferably fed to the second scrubbing zone.

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