Reforming/dehydrocyclization catalysts
AssigneeUop LLC
InventorsPeter K. Coughlin, Regis J. Pellet
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Abstract
Reforming and dehydrocyclization catalysts and processes are disclosed wherein reforming catalysts comprise a Group VIII metal and at least one bound medium pore non-zeolitic molecular sieve characterized in the calcined form by an adsorption of isobutane of at least 2 percent by weight at a partial pressure of 500 torr and a temperature of 20.degree. C. and characterized by an adsorption of triethylamine less than about 5 percent by weight at a partial pressure of 2.6 torr and a temperature of 22.degree. C. The binder preferably is alumina and/or silica, and the Group VIII metal preferably is platinum.
Claims20
A reforming process comprising contacting a mixed hydrocarbon fraction to obtain a higher-octane product under effective reforming conditions using a catalyst comprising amounts effective to render the catalyst active as a reforming catalyst of:
- (a) at least one MP-NZMS characterized in the calcined form by an adsorption of isobutane of at least 2 percent by weight at a partial pressure of 500 torr and a temperature of 20.degree. C. and also characterized by an adsorption of triethylamine less than about 5 percent by weight at a partial pressure of 2.6 torr and a temperature of 22.degree. C.;
- (b) an inorganic-oxide binder;
- and
- (c) at least one Group VIII metal.
A reforming process comprising contacting a mixed hydrocarbon fraction to obtain a higher-octane product under effective reforming conditions comprising a temperature of about 700.degree. F. to about 1000.degree. F., a pressure of from about atmospheric to about 1000 psig, a WHSV of at least 0.5 weight unit of hydrocarbon per hour per weight unit of catalyst, and a recycle gas rate within the range of about 1,000 SCFB to about 20,000 SCFB using a catalyst comprising amounts effective to render the catalyst active as a reforming catalyst of:
- (a) at least one MP-NZMS characterized in the calcined form by an adsorption of isobutane of at least 2 percent by weight at a partial pressure of 500 torr and a temperature of 20.degree. C. and also characterized by an adsorption of triethylamine less than about 5 percent by weight at a partial pressure of 2.6 torr and a temperature of 22.degree. C.;
- (b) an inorganic-oxide binder comprising one or more of silicas and aluminas;
- and
- (c) at least one Group VIII metal present in the catalyst on an elemental basis in an amount of between about 0.1 and 2 wt. %, based on the total weight of the catalyst.
A reforming process comprising contacting a mixed hydrocarbon fraction to obtain a higher-octane product under effective reforming conditions comprising a temperature of about 700.degree. F. to about 1000.degree. F., a pressure of from about atmospheric to about 1000 psig, a WHSV of at least 0.5 weight unit of hydrocarbon per hour per weight unit of catalyst, and a recycle gas rate within the range of about 1,000 SCFB to about 20,000 SCFB using a catalyst comprising amounts effective to render the catalyst active as a reforming catalyst of:
- (a) one or more MP-NZMSs selected from the group consisting of SAPO-11, SAPO-31, SAPO-40 and SAPO-41;
- (b) an inorganic-oxide binder comprising one or more of silicas and aluminas;
- and
- (c) at least one Group VIII metal present in the catalyst on an elemental basis in an amount of between about 0.1 and 2 wt. %, based on the total weight of the catalyst.
Dependencies are inferred from the claim text.