Dewaxing catalysts and processes employing non-zeolitic molecular sieves
AssigneeUop LLC
InventorsRegis J. Pellet, Jule A. Rabo, Gary N. Long, Frank P. Gortsema, Albert R. Springer
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Abstract
Dewaxing processes for hydrocarbon feedstocks are disclosed using novel catalysts comprising non-zeolitic molecular sieves, such as the silicoaluminophosphates of U.S. Pat. No. 4,440,871. The products of the instant dewaxing processes are characterized by lower pour points than the hydrocarbon feedstock.
Claims43
The process for dewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock at effective dewaxing conditions with a dewaxing catalyst comprising an effective amount of at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, FeAPO, TiAPO, and ELAPO molecular sieves, and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C.
The process for hydrodewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock with a catalyst in the presence of hydrogen at effective hydrodewaxing conditions wherein the catalyst comprises at least one hydrogenation component in an amount effective to provide an effective hydrodewaxing catalyst and at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, FeAPO, TiAPO, and ELAPO molecular sieves, and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C.
The process for dewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock at effective dewaxing conditions with a dewaxing catalyst comprising an effective amount of at least one SAPO characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C.
The process for hydrodewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock with a catalyst in the presence of hydrogen at effective hydrodewaxing conditions wherein the catalyst comprises at least one hydrogenation component in an amount effective to provide an effective hydrodewaxing catalyst and at least one SAPO characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and temperature of 20.degree. C.
The process for dewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock at effective dewaxing conditions with a dewaxing catalyst comprising an effective amount of at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, FeAPO, TiAPO, and ELAPO molecular sieves, and mixtures thereof, and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C., and further characterized in its calcined form by an adsorption of triethylamine of from zero to less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22.degree. C.
The process of hydrodewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock with a catalyst in the presence of hydrogen at effective hydrodewaxing conditions wherein the catalyst comprises at least one hydrogenation component in an amount effective to produce an effective hydrodewaxing catalyst and at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, FeAPO, TiAPO, and ELAPO molecular sieves, and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C., and further characterized in its calcined form by an adsorption of triethylamine of from zero to less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22.degree. C.
The process for dewaxing a hydrocarbon to reduce its pour point comprising contacting the hydrocarbon feedstock at effective dewaxing conditions with a dewaxing catalyst comprising an effective amount of an NZ-MS selected from the group consisting of SAPO molecular sieves and an effective amount of at least one zeolitic aluminosilicate selected from the group consisting of zeolite Y, ultra-stable Y zeolites, zeolite X, zeolite beta, zeolite KZ-20, faujasite, LZ-210, LZ-10 and ZSM zeolites selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-23, ZSM-35, ZSM-38 and ZSM-48, wherein said NZ-MS is characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight and a pressure of 500 torr and a temperature of 20.degree. C. and further characterized in its calcined form by an adsorption of triethylamine of from zero to less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22.degree. C.
The process for dewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting said feedstock under conditions effective to produce dewaxing with a catalyst comprising an effective amount of at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, FeAPO, TiAPO and ELAPO molecular sieves, and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C., and further characterized in its calcined form by an adsorption of triethylamine of from zero to less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22.degree. C.
The process for dewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock at effective dewaxing conditions with a dewaxing catalyst comprising an effective amount of at least one NZ-MS selected from the group consisting of SAPO, ELAPSO and ELAPO molecular sieves, and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C., and further characterized in its calcined form by an adsorption of triethylamine from zero to less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22.degree. C.
The process for hydrodewaxing a hydrocarbon feedstock to reduce its pour point comprising contacting the hydrocarbon feedstock with a catalyst in the presence of hydrogen at effective hydrodewaxing conditions wherein said catalyst comprises at least one hydrogenation component in an amount effective to provide an effective hydrodewaxing catalyst and at least one NZ-MS selected from the group consisting of SAPO, ELAPSO and ELAPO molecular sieves, and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C., and further characterized in its calcined form by an adsorption of triethylamine from zero to less than 5 percent by weight at a pressure of 2.6 torr and a temperature of 22.degree. C.
Dependencies are inferred from the claim text.