Systems and methods for improved sulfur recovery from claus process tail gas

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United States of America Patent

PATENT NO 9884291
SERIAL NO

15225057

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Abstract

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A system for reducing SO2 emissions comprises a hydrogenation reactor, a tail gas cooler, a contact condenser, a hydrolysis reactor, and an absorber. The hydrogenation reactor is configured to receive a Claus tail gas and convert at least a portion of SO2 in the Claus tail gas to H2S to produce a hydrogenated Claus tail gas stream. The hydrolysis reactor is configured to convert at least a portion of COS to H2S. The absorber comprises an amine-based solvent and is configured to absorb at least a portion of the H2S and recycle the H2S to the Claus plant.

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Patent Owner(s)

Patent OwnerAddress
FLUOR TECHNOLOGIES CORPORATION1 FLUOR DANIEL DRIVE SUGAR LAND TX 77478

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chow, Thomas King Irvine, US 7 321
Graham, Curt Mission Viejo, US 29 482

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