Method and device for sour gas scrubbing
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United States of America Patent
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May 28, 2019
Grant Date -
Jul 14, 2016
app pub date -
Aug 19, 2014
filing date -
Sep 24, 2013
priority date (Note) -
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Abstract
A method and device for gas scrubbing, in which, in a first scrubbing step, substances of a first kind and, in a subsequent second scrubbing step, substances of a second kind are selectively washed out from the gas mixture that is made to flow in countercurrent to physically acting scrubbing agents, wherein part of the scrubbing agent that is free from substances of the first kind but laden with substances of the second kind in the second scrubbing step is used in the first scrubbing step, and so there occurs a scrubbing agent stream that is laden with substances of the first and second kinds, during the regeneration of which a partly regenerated scrubbing agent stream (semilean); that contains substances of the first and second kinds but has a lower content of substances of the first kind than the scrubbing agent stream laden in the first scrubbing step is generated.
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