Co shift catalyst, method for manufacturing the same, and co shift reactor using co shift catalyst
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsToshinobu Yasutake, Tetsuya Imai, Masanao Yonemura, Susumu Okino, Keiji Fujikawa, Shinya Tachibana
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Abstract
A CO shift catalyst according to the present invention reforms carbon monoxide (CO) and is prepared from one or a mixture of platinum (Pt), ruthenium (Ru), iridium (Ir), and rhodium (Rh) as an active ingredient and at least one of titanium (Ti), aluminum (Al), zirconium (Zr), and cerium (Ce) as a carrier for supporting the active ingredient. The CO shift catalyst can be used in a halogen-resistant CO shift reactor (15) that converts CO contained in gasified gas (12) generated in a gasifier (11) into CO2.
Claims8
A CO shift catalyst that reforms carbon monoxide (CO) in a gas, comprising:
- one or a mixture of platinum (Pt), ruthenium (Ru), iridium (Ir), and rhodium (Rh) as an active ingredient;
- and
- at least one of titanium (Ti), aluminum (Al), zirconium (Zr), and cerium (Ce) as a carrier for supporting the active ingredient.
A method of manufacturing a CO shift catalyst comprising:
- adding sulfuric acid to an oxide of one of titanium (Ti), aluminum (Al), zirconium (Zr), and cerium (Ce) or to a complex oxide of at least two of titanium (Ti), aluminum (Al), zirconium (Zr), and cerium (Ce);
- evaporating moisture from the oxide or the complex oxide to which the sulfuric acid is added at the adding;
- firing the oxide or the complex oxide, from which the moisture is evaporated at the evaporating, in a heating furnace at a temperature of 500 to 600° C. to cause sulfate radical to remain in a carrier;
- and
- causing the carrier, in which the sulfate radical remains, to support an active ingredient.
Dependencies are inferred from the claim text.