Abstract: A method of reactivating a spent catalyst comprising a metal and a catalyst support, the method comprising redispersing the metal in the spent catalyst to produce a redispersed spent catalyst, contacting the redispersed spent catalyst with a reactivating composition to produce a redispersed, reactivated spent catalyst, and thermally treating the redispersed, reactivated spent catalyst to produce a reactivated catalyst.

Abstract: A method of preparing a fresh catalyst comprising impregnating a metal into a catalyst support to produce an impregnated catalyst, dispersing the metal in the impregnated catalyst to produce an impregnated, dispersed catalyst, contacting the impregnated, dispersed catalyst with an activating composition to produce an impregnated, dispersed, activated catalyst, and thermally treating the impregnated, dispersed, activated catalyst to produce a fresh catalyst wherein the activating composition is in the liquid phase.

Abstract: A method comprising contacting a crystalline aluminosilicate with an organic acid to form an acid-treated support; contacting the acid-treated support with a Group IB metal compound and a Group IIIA element compound to form a catalyst precursor; and contacting the catalyst precursor with a silylating agent to form a silylated catalyst.

Abstract: Methods for treating or rejuvenating a spent catalyst are disclosed. Such methods can employ a step of halogenating the spent catalyst, followed by decoking the halogenated spent catalyst. The halogenation step can utilize fluorine and chlorine together, or fluorine and chlorine can be applied sequentially.

Abstract: Methods for treating or rejuvenating a spent catalyst are disclosed. Such methods can employ a step of halogenating the spent catalyst, followed by decoking the halogenated spent catalyst.

Abstract: A method of preparing a fresh catalyst comprising impregnating a metal into a catalyst support to produce an impregnated catalyst, dispersing the metal in the impregnated catalyst to produce an impregnated, dispersed catalyst, contacting the impregnated, dispersed catalyst with an activating composition to produce an impregnated, dispersed, activated catalyst, and thermally treating the impregnated, dispersed, activated catalyst to produce a fresh catalyst wherein the activating composition is in the liquid phase.

Abstract: A method of preparing a fresh catalyst comprises impregnating a metal to a catalyst support to produce an impregnated catalyst, dispersing the metal in the impregnated catalyst to produce an impregnated, dispersed catalyst, contacting the impregnated, dispersed catalyst with an activating composition to produce an impregnated, dispersed, activated catalyst, and thermally treating the impregnated, dispersed, activated catalyst to produce the fresh catalyst wherein the activating composition is in the gas phase.

Abstract: A method of reactivating a spent catalyst comprising a metal and a catalyst support, the method comprising redispersing the metal in the spent catalyst to produce a redispersed spent catalyst, contacting the redispersed spent catalyst with a reactivating composition to produce a redispersed, reactivated spent catalyst, and thermally treating the redispersed, reactivated spent catalyst to produce a reactivated catalyst.

Abstract: We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method can include: (i) first silylating HZSM-5, to form silylated HZSM-5; (ii) first calcining the silylated HZSM-5, to form calcined silylated HZSM-5; (iii) binding the calcined silylated HZSM-5 to silica, to form silica-bound calcined silylated HZSM-5; (iv) extruding the silica-bound calcined silylated HZSM-5, to form extruded silica-bound calcined silylated HZSM-5; (v) second calcining the extruded silica-bound calcined silylated HZSM-5, to form extruded silica-bound twice-calcined silylated HZSM-5; (vi) second silylating the extruded silica-bound twice-calcined silylated HZSM-5, to form extruded silica-bound twice-calcined twice-silylated HZSM-5; and (vii) third calcining the extruded silica-bound twice-calcined twice-silylated HZSM-5, to form the silica-bound HZSM-5 catalyst.

Abstract: We disclose a method for preparing a catalyst for converting toluene to xylenes.

Abstract: A method of making a catalyst composition, comprising impregnating a large pore zeolite support with a platinum precursor and at least one organic ammonium halide precursor. In an embodiment, the ammonium halide precursor is represented by the formula N(R)4X, where X is a halide and R is a substituted or unsubstituted carbon chain molecule having 1–20 carbon atoms wherein each R may be the same or different. In an embodiment, the ammonium halide precursor comprises at least one acid halide and at least one ammonium hydroxide represented by the formula N(R?)4OH, where R? is hydrogen or a substituted or unsubstituted carbon chain molecule having 1–20 carbon atoms wherein each R? may be the same or different. A process for aromatizing a hydrocarbon using said catalyst composition.

Abstract: We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method can include: (i) first silylating HZSM-5, to form silylated HZSM-5; (ii) first calcining the silylated HZSM-5, to form calcined silylated HZSM-5; (iii) binding the calcined silylated HZSM-5 to silica, to form silica-bound calcined silylated HZSM-5; (iv) extruding the silica-bound calcined silylated HZSM-5, to form extruded silica-bound calcined silylated HZSM-5; (v) second calcining the extruded silica-bound calcined silylated HZSM-5, to form extruded silica-bound twice-calcined silylated HZSM-5; (vi) second silylating the extruded silica-bound twice-calcined silylated HZSM-5, to form extruded silica-bound twice-calcined twice-silylated HZSM-5; and (vii) third calcining the extruded silica-bound twice-calcined twice-silylated HZSM-5, to form the silica-bound HZSM-5 catalyst.

Abstract: We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method can include: (i) first silylating HZSM-5, to form silylated HZSM-5; (ii) first calcining the silylated HZSM-5, to form calcined silylated HZSM-5; (iii) binding the calcined silylated HZSM-5 to silica, to form silica-bound calcined silylated HZSM-5; (iv) extruding the silica-bound calcined silylated HZSM-5, to form extruded silica-bound calcined silylated HZSM-5; (v) second calcining the extruded silica-bound calcined silylated HZSM-5, to form extruded silica-bound twice-calcined silylated HZSM-5; (vi) second silylating the extruded silica-bound twice-calcined silylated HZSM-5, to form extruded silica-bound twice-calcined twice-silylated HZSM-5; and (vii) third calcining the extruded silica-bound twice-calcined twice-silylated HZSM-5, to form the silica-bound HZSM-5 catalyst.

Abstract: We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method can include: (i) first silylating HZSM-5, to form silylated HZSM-5; (ii) first calcining the silylated HZSM-5, to form calcined silylated HZSM-5; (iii) binding the calcined silylated HZSM-5 to silica, to form silica-bound calcined silylated HZSM-5; (iv) extruding the silica-bound calcined silylated HZSM-5, to form extruded silica-bound calcined silylated HZSM-5; (v) second calcining the extruded silica-bound calcined silylated HZSM-5, to form extruded silica-bound twice-calcined silylated HZSM-5; (vi) second silylating the extruded silica-bound twice-calcined silylated HZSM-5, to form extruded silica-bound twice-calcined twice-silylated HZSM-5; and (vii) third calcining the extruded silica-bound twice-calcined twice-silylated HZSM-5, to form the silica-bound HZSM-5 catalyst.

Abstract: A method of making a catalyst composition, comprising impregnating a large pore zeolite support with a platinum precursor and at least one organic ammonium halide precursor. In an embodiment, the ammonium halide precursor is represented by the formula N(R)4X, where X is a halide and R is a substituted or unsubstituted carbon chain molecule having 1-20 carbon atoms wherein each R may be the same or different. In an embodiment, the ammonium halide precursor comprises at least one acid halide and at least one ammonium hydroxide represented by the formula N(R′)4OH, where R′ is hydrogen or a substituted or unsubstituted carbon chain molecule having 1-20 carbon atoms wherein each R′ may be the same or different. A process for aromatizing a hydrocarbon using said catalyst composition.

Abstract: We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method can include: (i) first silylating HZSM-5, to form silylated HZSM-5; (ii) first calcining the silylated HZSM-5, to form calcined silylated HZSM-5; (iii) binding the calcined silylated HZSM-5 to silica, to form silica-bound calcined silylated HZSM-5; (iv) extruding the silica-bound calcined silylated HZSM-5, to form extruded silica-bound calcined silylated HZSM-5; (v) second calcining the extruded silica-bound calcined silylated HZSM-5, to form extruded silica-bound twice-calcined silylated HZSM-5; (vi) second silylating the extruded silica-bound twice-calcined silylated HZSM-5, to form extruded silica-bound twice-calcined twice-silylated HZSM-5; and (vii) third calcining the extruded silica-bound twice-calcined twice-silylated HZSM-5, to form the silica-bound HZSM-5 catalyst.

Abstract: A hydrocarbon conversion process comprising contacting a hydrocarbon stream such as, for example, gasoline, with a catalyst composition to effect the conversion of the hydrocarbon to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylenes. The catalyst composition comprises a zeolite, a promoter and optionally a binder.

Abstract: A catalyst composition comprising a nitrided and sulfided composition comprising a cobalt compound, a molybdenum compound, and an inorganic oxide compound. The catalyst composition is made by contacting a cobalt compound and a molybdenum compound with an inorganic oxide compound and then nitriding and sulfiding the Co/Mo-modified catalyst. The catalyst composition is used to hydrodesulfurize a heavy hydrocarbon feed containing organic sulfur compounds and aromatic compounds.

Abstract: A process is provided for upgrading an oligomerization product through hydrogenation and isomerization with some selective/minor cracking resulting in a synthetic lube base oil with improved pour point and viscosity index. The upgrading process includes contacting the oligomerization product with a hydrogenation catalyst and an isomerization catalyst under conversion conditions, which include the presence of hydrogen and a temperature sufficient to promote hydrogenation and isomerization with some selective/minor cracking. The hydrogenation catalyst contains a porous carrier material and a group VIII metal while the isomerization catalyst contains an aluminosilicate zeolite.

Abstract: A process for the conversion of syngas by contact of syngas under conversion conditions with catalyst having as components zinc oxide, copper oxide, aluminum oxide, Y zeolite and clay in which (A) in a one step process for conversion of syngas to dimethyl ether, the catalyst has as components an extruded mixture of zinc oxide, copper oxide, gamma aluminum oxide, Y zeolite and clay; (B) in a two step process for conversion of syngas to light olefins, a catalyst system is employed that has in the first step a catalyst mixture of zinc oxide, copper oxide, aluminum oxide, Y zeolite and clay and the catalyst employed in the second step is SAPO-34; SAPO-34 modified with lanthanum(III) nitrate hexahydrate; SAPO-34 modified with magnesium nitrate hexahydrate; SAPO-34 modified with tributyl borate or SAPO-34 modified with triethyl phosphate or (C) in a two step process for conversion of syngas to light olefins, the pressure on the effluent from the contact of syngas with a mixture of zinc oxide, copper oxide, aluminum