B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
23/348
B01J 38/12 (2006.01) B01D 53/86 (2006.01) C10G 11/18 (2006.01)
Patent
CA 1192379
Abstract of the Invention A process and material is disclosed for disposing of SOx laden regeneration flue gas by contacting the flue gas under selected reaction conversion conditions in a reaction zone with a high metal containing particulate material to remove sulfur oxides. Reaction conditions are such that the sulfur oxides are removed by selective adsorption or reaction with the metals to yield metal sulfites - sulfates. The metal sulfite - sulfate containing material is regenerated-rejuvenated in a reductive atmosphere or oxidative-steam atmosphere and the regenerated solid particulate material is recycled back to the SOx removal zone. The SOx in a reductive atmosphere is recovered as hydrogen sulfide and in the oxidative-steam atmos- phere as sulfur oxides. The particulate material of the inven- tion can be active or deactivated catalyst from FCC and/or RCC operations containing sufficient metals, such as Ni-V-Fe, to react with the sulfur oxides or a low activity high metals con- taining sorbent material such as obtained from a metal recovery system in front of a reduced crude conversion unit.
401233
Ashland Oil Inc.
Gowling Lafleur Henderson Llp
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