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U.S. Department of Energy
Office of Scientific and Technical Information

Reducing SO/sub 2/ in refinery off gas

Patent ·
OSTI ID:6054465
Conventionally H/sub 2/S laden gases are amine scrubbed, the H/sub 2/S sprung from the amine, converted to sulfur in the Claus process and the tail gas from the Claus process scrubbed in a tail gas facility such as Beavon--Stretford, Shell SCOT or IFP. The instant disclosure eliminates the aforementioned scrubbing processes by reducing SO/sub 2/ in Claus tail gas with a hydrogen rich gas to H/sub 2/S and condensing water out of this reduced product. The dehydrated product having a lower sulfur level is compressed and admixed with other refinery gases in a refinery fuel gas mixing vessel and used as fuel in the refinery.
Assignee:
Mobil Oil Corp.
Patent Number(s):
US 4123505
OSTI ID:
6054465
Country of Publication:
United States
Language:
English