Sulfur recovery process using metal oxide absorbent with...

Details Sulfur recovery process using metal oxide absorbent with... Sulfur recovery process using metal oxide absorbent with...

B - Operations, Transporting

01

D

23/344, 23/348

B01D 53/14 (2006.01) B01D 53/34 (2006.01)

Patent

CA 1300345

ABSTRACT Sulfur species are removed from a Claus plant tail gas stream by contacting with ZnO producing ZnS which is regenerated to ZnO by dilute O2. Following regeneration, freshly regenerated ZnO in one ZnO absorber is purged with an effective reducing gas stream producing SO2 emissions while another ZnO absorber is downstream operating under effective absorption conditions for removing thus produced SO2 from the first ZnO absorber effluent. GMB:sdg/tb/jdb 86234ART0015

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