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AssigneeUop LLC
InventorsManuela Serban, Kurt M. Vanden Bussche, Alakananda Bhattacharyya
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The present invention involves both separated beds (or physical mixture) and a process for treating a fuel gas comprising sending the fuel gas to a separated bed (or physical mixture), in which the separated beds comprise a first bed of a sulfur sorbent and a second bed of a water gas shift catalyst (a physical mixture of a sulfur sorbent and a water gas shift catalyst). The process comprises first sending the fuel gas to the first bed to remove sulfur compounds from said fuel gas and then the fuel gas goes to the second bed to undergo a water gas shift reaction in which carbon monoxide is converted to carbon dioxide and water is converted to hydrogen. (or sending the fuel gas simultaneously to the physical mixture to remove simultaneously the sulfur compounds and to react CO with water to CO2 and hydrogen).
A process for treating a gaseous stream, the process comprising the steps of:
Separated beds comprising a bed of a sulfur sorbent within a reactor vessel adjacent to a bed of a high temperature water gas shift catalyst within the reactor vessel wherein the sulfur sorbent comprising a nickel aluminate catalyst selected from the group consisting of Ni2xAl2O2x+3, Ni(2−y)Ni0yAl2O(5−y), Ni(4−y)Ni0yAl2O(7−y), Ni(6−y)Ni0yAl2O(9−y), and intermediates thereof, wherein x>0.5 and 0.01<y<2 that is selected to remove H2S and COS from a gaseous stream that is introduced to the reactor vessel and the high temperature water gas shift catalyst, comprising a sulfur-tolerant catalyst having an active phase comprising an iron oxide phase, is selected to be effective for a water gas shift reaction of carbon monoxide contained in the gaseous stream.
Dependencies are inferred from the claim text.