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AssigneeChevron Chemical Company
InventorsDennis L. Holtermann, Charles R. Wilson, Wayne S. Masumura, Michio Sugimoto, Hiroshi Ohashi
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A catalytic reforming process comprising the catalytic conversion of hydrocarbons to aromatics, said process comprising treating a halided zeolite catalyst (hiz-cat) containing a Group VIII metal at commercial startup conditions and then reforming hydrocarbons, wherein said catalyst is prepared by washing a bound zeolite catalyst base or a bound zeolite catalyst before halide addition. A preferred hiz-cat is a non-acidic Pt K L-zeolite catalyst prepared by a process that includes the steps of preparing a calcined silica-bound K L-zeolite catalyst base; washing said bound zeolite catalyst base with a liquid comprising water; and incorporating Pt and halogen-containing compound(s) comprising chlorine and fluorine into said washed catalyst base. Ammonium chloride and ammonium fluoride are preferred halide sources.
A catalytic reforming process comprising the catalytic conversion of hydrocarbons to aromatics, said process comprising treating a halided zeolite catalyst containing a Group VIII metal at commercial startup conditions and then reforming hydrocarbons, wherein said catalyst is prepared by washing a bound zeolite catalyst base or a bound zeolite catalyst before halide addition.
A process for producing aromatics comprising preparing a halided zeolite catalyst by washing a calcined bound zeolite catalyst base with a liquid comprising water;
A hydrocarbon conversion process comprising the catalytic conversion of a hydrocarbon-containing feed to product under conversion conditions that include a catalyst startup at a gas flow rate comprising a GHSV of between 400 and 2000 hr−1 and a heat-up rate of between 5 and 50° F./hr during catalyst reduction above about 500° F., said process using a halided zeolite catalyst containing a Group VIII metal, said halided catalyst prepared by a process comprising washing a bound zeolite catalyst base or catalyst before halide addition.
Dependencies are inferred from the claim text.