C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 17/02 (2006.01) B01D 53/12 (2006.01) B01D 53/50 (2006.01) B01D 53/52 (2006.01) B01D 53/86 (2006.01) B01J 19/00 (2006.01) C01B 17/04 (2006.01)
Patent
CA 2118120
A method and apparatus for removing sulphur from a gas stream containing at least one sulphur compound, comprising cumbusting said gas stream with an oxygen containing gas in an incinerator (10) to convert the or each sulphur compound to at least one sulphur oxide. A gas stream is then withdrawn from the incinerator, which contains the or each sulphur oxide. The sulphur oxide containing gas stream is then directed to an ab- sorber (12) having an absorbent bed adapted to remove sulphur compounds. The absorbent bed is then contacted with a hydrog- en and/or hydrocarbon containing stream to regenerate said ab- sorbent bed by reducing the sulphur compounds absorbed in said absorbent bed to hydrogen sulphide and/or sulphur diox- ide, and thereby forming off gas stream containing hydrogen sulphide and/or sulphur dioxide. Finally, sulphur is recovered from said hydrogen sulphide and/or sulphur dioxide bearing stream. The sulphur can be recovered by a Claus sulphur rec- overy process (16). The hydrogen sulphide containing gas stream can be ammonia acid gas stream, thereby causing N2 to be formed in the incinerator. The N2 is not absorbed in the ab- sorbent bed.
Buchanan John S.
Iyengar Jagannathan N.
Sodomin Joseph F.
Stern David L.
Teitman Gerald J.
Exxonmobil Oil Corporation
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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