Nippon Oil Company

Tokuo Fujiso

Tadashi Ohmori

Soichi Nomura

Yukio Aizawa

Eiji Yasui

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.

Process for preparing a hydrocarbon reforming catalyst

A process is disclosed for re-activating a used solid acid catalyst wherein the catalyst is calcined to burn off heavy hydrocarbons and subsequently halogenated with chlorine and/or fluorine or their compounds entrained by an inert gas or a non-reducing gas. The resulting re-activated catalyst finds wide application in isomerization and oligomerization of olefins, conversion of methanol into hydrocarbons, and isomerization, disproportionation or trans-alkylation of aromatic hydrocarbons.

Process for re-activation of solid acid catalyst

A process for converting linear aliphatic olefins into branched-chain aliphatic olefins, by contacting said linear aliphatic olefins with a comprising an active alumina carrier and fluorine and chlorine supported thereon, the amounts of fluorine and chlorine supported being 0.2 to 2.0% by weight, and 0.2 to 4.0% by weight, respectively, based on the total weight of the catalyst composition. The aforesaid isomerization catalyst can be produced by contacting an active alumina carrier with at least one halogenated hydrocarbon containing fluorine and chlorine in the molecule at a temperature of 200.degree. to 500.degree. C.

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Yokosuka, Japan

Tokuo Fujiso