Uop Lcc

Universal Oil Products Company

Richard E Rausch

Dehydrogenatable hydrocarbons are dehydrogenated by contacting them at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, and a tin component with a porous carrier material. A specific example of the catalytic composite disclosed herein is a combination of a platinum or palladium component, a rhodium component, a tin component, and an alkali or alkaline earth component with a porous carrier material wherein substantially all of the platinum or palladium component and the rhodium component are present therein as the corresponding elemental metals and substantially all of the tin component and the alkali or alkaline earth component are present therein in an oxidation state above the elemental metal, and wherein the composite contains about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 5 wt. % tin, and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.

Hydrocarbon dehydrogenation method

Dehydrocyclizable hydrocarbons are converted to atomatics by contacting them at dehydrocyclization conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, a rhenium component, a tin component, and a halogen component with a porous carrier material. The platinum or palladium, rhodium, rhenium, tin and halogen components are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 2 wt. % rhenium, about 0.01 to about 5 wt. % tin, and about 0.1 to about 3.5 wt. % halogen. Moreover, the catalytically active sites induced by these metallic components are uniformly dispersed throughout the porous carrier material and these metallic components are present in the catalyst in carefully controlled oxidation states such that substantially all of the platinum or palladium, rhodium and rhenium components are in the elemental metallic state and substantially all of the tin is in an oxidation state above that of the elemental metal. A specific example of the dehydrocyclization method disclosed herein is a method for converting a feed mixture of n-hexane and n-heptane to a product mixture of benzene and toluene which involves contacting the feed mixture and a hydrogen stream with the acidic multimetallic catalyst disclosed herein at dehydrocyclization conditions.

Dehydrocyclization with an acidic multimetallic catalytic composite

A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite of a porous carrier material, a platinum or palladium component, a rhodium component and a tin component, in which process there is effected a chemical consumption of hydrogen. A specific example of one such catalyst is a composite of a crystalline aluminosilicate, a platinum component, a rhodium component and a tin component, for utilization in a hydrocracking process. Other hydrocarbon hydroprocesses are directed toward the hydrogenation of aromatic nuclei, the ring-opening of cyclic hydrocarbons, desulfurization, denitrification, hydrogenation, etc.

Hydroprocessing of sulfurous kerosene to improve jet fuel

Dehydrocyclizable hydrocarbons are converted to aromatics by contacting them at dehydrocyclization conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, a tin component, and a halogen component with a porous carrier material. The platinum or palladium, rhodium, tin and halogen components are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 5 wt. % tin, and about 0.1 to about 3.5 wt. % halogen. Moreover, the catalytically active sites induced by these metallic components are uniformly dispersed throughout the porous carrier material and these metallic components are present in the catalyst in carefully controlled oxidation states such that substantially all of the platinum or palladium and rhodium components are in the elemental metallic state and substantially all of the tin is in an oxidation state above that of the elemental metal. A specific example of the dehydrocyclization method disclosed herein is a method for converting a feed mixture of n-hexane and n-heptane to a product mixture of benzene and toluene which involves contacting the feed mixture and a hydrogen stream with the acidic multimetallic catalyst disclosed herein at dehydrocyclization conditions.

Hydrocracking of hydrocarbons over tri-metallic catalyst

Desulfurization of a sulfurous hydrocarbon distillate containing mono-olefinic hydrocarbons and aromatics is carried out by reacting the distillate with hydrogen in contact with a catalyst composite of a carrier, a platinum or palladium component, a rhodium component and a tin component. The carrier may be alumina, alumina-boria, silica-alumina, chromia-alumina, alumina-silica-boron phosphate or crystalline aluminosilicate.

Hydrodesulfurization of hydrocarbon distillate with a catalyst composite

A superactive acidic bimetallic catalytic composite, comprising a combination of catalytically effective amounts of a platinum group component, a tin component and a computed amount of a halogen component with a porous carrier material, is disclosed. The platinum group and tin component are present in the composite in amounts, calculated on an elemental basis, of about 0.01 to about 2 wt. % platinum group metal and about 0.01 to about 5 wt. % tin. The amount of the halogen component is selected as a function of the surface area of the porous carrier material and of the moles of tin contained in the composite in accordance with a hereinafter disclosed relationship. Moreover, the tin component is uniformly dispersed throughout the porous carrier material in a particle size having a maximum dimension less than 100.degree. A, substantially all of the platinum group component is present as the elemental metal and substantially all of the tin component is present in an oxidation state above that of the elemental metal. The principal utility of this superactive acidic bimetallic composite is in the conversion of hydrocarbons, particularly in the reforming of a gasoline fraction to produce a high octane and aromatic rich reformate. A specific example of the superactive acidic bimetallic catalyst disclosed is a combination of a platinum group metal, tin and chlorine with an alumina carrier material, wherein the tin component is uniformly dispersed throughout the alumina carrier material in a positive oxidation state and in a relatively small particle size and wherein the composite contains, on an elemental basis, about 0.01 to 2 wt. % platinum metal, about 0.01 to 5 wt. % tin and chlorine in an amount determined as a function of the surface area of the alumina and of the mole content of tin in accordance with an equation herein specified.

Conversion of hydrocarbons with a superactive acidic bimetallic

Alkylaromatic hydrocarbons are isomerized using a catalytic composite comprising a combination of a platinum or palladium component, a rhodium component, a tin component and a halogen component with a porous carrier material.

Hydrocarbon isomerization process

Naphthenic hydrocarbons are isomerized using a catalytic composite comprising a combination of a platinum or palladium component, a rhodium component, a tin component and a halogen component with a porous carrier material.

Olefinic hydrocarbons are isomerized using a catalytic composite comprising a combination of a platinum or palladium component, a rhodium component, a tin component and a halogen component with a porous carrier material.

A gasoline fraction is catalytically reformed by contacting the gasoline fraction and a hydrogen stream at reforming conditions with an activated bimetallic acidic catalytic composite comprising a combination of a platinum group component, a tin component and a halogen component with a porous carrier material, the catalytic composite having been: (1) activated by contacting same with an activating gas comprising oxygen and a halogenating component selected from the group consisting of halogen and hydrogen halide at a temperature between 700.degree. and 1100.degree. F. for a time of at least 0.5 to about 10 hours; and thereafter (2) reduced by contacting the resulting activated catalytic composite with a substantially water-free reducing agent at reduction conditions selected to reduce substantially all of the platinum group component to the elemental metallic state while maintaining substantially all of the tin component in an oxidation state above that of the elemental metal.

Catalytic reforming with an activated bimetallic catalytic composite

Hydroprocessing of hydrocarbons

Dehydrogenatable hydrocarbons are dehydrogenated by contacting them at dehydrogenation conditions with a catalytic composite, comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a rhenium component, and a tin component with a porous carrier material. A specific example of the subject dehydrogenation method involves contacting a dehydrogenatable hydrocarbon and hydrogen, at dehydrogenation conditions, with a catalytic composite comprising a combination of a platinum or palladium component, an iridium component, a rhenium component, and a tin component with a porous carrier material wherein substantially all of the platinum or palladium component, the iridium component and the rhenium component are present as the corresponding elemental metals and substantially all of the tin component is present in an oxidation state above the elemental metal, and wherein the composite contains about 0.01 to about 2 wt.% platinum or palladium, about 0.01 to about 2 wt.% iridium, about 0.01 to about 2 wt.% rhenium, and about 0.01 to about 5 wt.% tin.

Dehydrogenation method

Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, and a tin component with a porous carrier material. A specific example of the catalytic composite disclosed herein is a combination of a platinum or palladium component, a rhodium component, a tin component, and an alkali or alkaline earth component with a porous carrier material wherein substantially all of the platinum or palladium component and rhodium component are present therein as the corresponding elemental metals and substantially all of the tin component and the alkali or alkaline earth component are present therein in an oxidation state above the elemental metal, and wherein the composite contains about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 5 wt. % tin, and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.

Dehydrogenation method and multimetallic catalytic composite for use

Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, a rhenium component, a tin component, and a halogen component with a porous carrier material. The platinum or palladium component, rhodium component, rhenium component, tin component, and halogen component are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum or palladium metal, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 2 wt. % rhenium, about 0.01 to about 5 wt. % tin, and about 0.1 to about 3.5 wt. % halogen. Moreover, these metallic components are uniformly dispersed throughout the porous carrier material in carefully controlled oxidation states such that substantially all of the platinum or palladium component is present therein in the elemental metallic state, substantially all of the rhenium and rhodium components are present therein in the elemental metallic state or in a state which is reducible to the elemental metallic state under hydrocarbon conversion conditions or in a mixture of these states and substantially all of the tin component is present in an oxidation state above that of the elemental metal and in a particle size which is less than 100 Angstroms in maximum dimension. A specific example of the type of hydrocarbon conversion process disclosed is a process for the catalytic reforming of a low-octane gasoline fraction wherein the gasoline fraction and a hydrogen stream are contacted with the acidic multimetallic catalyst disclosed herein at reforming conditions.

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Mundelein, IL, United States of America

Richard E Rausch