Process for preparing a hydrocarbon reforming catalyst
AssigneeNippon Oil Co., Ltd.
InventorsTadashi Ohmori, Tokuo Fujiso, Eiji Yasui, Soichi Nomura, Yukio Aizawa
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Abstract
A hydrocarbon reforming catalyst is obtained by supporting on an inorganic porous carrier a platinum cluster-anion complex salt in an amount of 0.01 to 5 wt. % as platinum metal, a rhenium compound in an amount of 0.01 to 5 wt. % as rhenium metal and a halogen in an amount of 0.2 to 5 wt. %, and then subjecting the resultant catalyst precursor to (a) a thermal decomposition treatment an/or a reduction treatment or alternatively (b) an oxidation treatment and a reduction treatment.
Claims12
A process for preparing a hydrocarbon reforming catalyst, utilizing as a precursor a rhenium compound and platinum carbonyl cluster complex salt of the general formula
- [P+.sub.3 (CO).sub.6 ].sub.n.sup.2- .multidot.2M.sup.+
- wherein n is an integer of 1-5, M.sup.+ is a cation selected from the group consisting of Li.sup.+, Na.sup.+, K.sup.+, Rb.sup.+, Cs.sup.+, NH.sub.4 or quaternary alkyl amine cation;
- which process comprises supporting on an inorganic porous carrier the platinum carbonyl cluster complex salt in an amount of 0.01 to 5% by weight as platinum metal, and the rhenium compound in an amount of 0.01 to 5% by weight as rhenium metal and a halogen in an amount of 0.2 to 5% by weight, and then subjecting the resultant catalyst precursor to a thermal decomposition treatment and a reduction treatment.
A process for preparing a hydrocarbon reforming catalyst, utilizing as a precursor a rhenium compound and platinum carbonyl cluster complex salt of the general formula
- [P+.sub.3 (CO).sub.6 ].sub.n.sup.2- .multidot.2M.sup.+
- wherein n is an integer of 1-5, M.sup.+ is a cation selected from the group consisting of Li.sup.+, Na.sup.+, K.sup.+, Rb.sup.+, Cs.sup.+, NH.sub.4 or quaternary alkyl amine cation;
- which process comprises supporting on an inorganic porous carrier the platinum carbonyl cluster complex salt in an amount of 0.01 to 5% by weight as platinum metal, and the rhenium compound in an amount of 0.01 to 5% by weight as rhenium metal and a halogen in an amount of 0.2 to 5% by weight, and then subjecting the resultant catalyst precursor to an oxidation treatment and then a reduction treatment.
Dependencies are inferred from the claim text.