Process to remove hydrogen-sulfide from gas by reflux...

Details Process to remove hydrogen-sulfide from gas by reflux... Process to remove hydrogen-sulfide from gas by reflux...

2008-12-10

2010-11-23

Hendrickson, Stuart (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

C423S210000, C423S220000, C423S222000, C423S243010, C423S243020, C423S243060, C423S352000

Reexamination Certificate

active

07837965

ABSTRACT:
A process for reducing hydrogen sulfide from a gas comprising contacting the gas with an aqueous scrubbing liquid recycled from a sour water stripper. The aqueous scrubbing liquid comprises ammonia. The contacting of the gas with the aqueous scrubbing liquid thereby produces a semi-sweet gas with reduced concentration of hydrogen sulfide and a rich liquid solution.

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