摘要:
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, an iridium component, a cobalt component, a Group IVA metallic component and a halogen component with a porous carrier material. The platinum or palladium iridium, cobalt, Group IVA metallic 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. % iridium, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % Group IVA metal and about 0.1 to about 3.5 wt. % halogen. These metallic components are, moreover, uniformly dispersed throughout the porous carrier material in carefully controlled oxidation states such that substantially all of the platinum or palladium and iridium are present therein in the elemental metallic state, substantially all of the Group IVA metal is in a positive oxidation state and substantially all of the catalytically available cobalt component is present 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. 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.
摘要:
Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic sulfur-free catalytic composite comprising a combination of catalytically effective and specially selected amounts of a platinum group component, a lead component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, lead component, cobalt 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 group metal, about 0.1 to about 3.5 wt. % halogen, an atomic ratio of lead to platinum group metal of about 0.5:1 to about 1.5:1 and an atomic ratio of cobalt to platinum group metal of at least about 5:1 to about 25:1. Moreover, these metallic components are uniformly dispersed throughout the porous carrier material in carefully controlled oxidation states and in the absence of sulfur such that substantially all of the platinum group metal is present therein in the elemental metallic state, substantially all of the cobalt component is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under hydrocarbon conversion conditions, while substantially all of the lead is present therein in an oxidation state above that of the elemental metal. A specifc 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 sulfur-free catalyst disclosed herein at reforming conditions.
摘要:
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 group component, a tin component, a cobalt component and a halogen component with a porous carrier material. The platinum group component, tin component, cobalt 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 group metal, about 0.01 to about 5 wt. % tin, about 0.5 to about 5 wt. % cobalt, 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 group metal is present therein in the elemental metallic state, substantially all of the cobalt component is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under hydrocarbon conversion conditions, while substantially all of the tin is present therein in an oxidation state above that of the elemental metal. 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.
摘要:
Saturated hydrocarbons are isomerized using a catalyst comprising a combination of a platinum group component, a cobalt component, a tin component and a halogen component with a porous carrier material. The cobalt and platinum group components are reduced to the metallic state while the tin is present in a positive oxidation state.
摘要:
Isomerizable hydrocarbons are isomerized using a catalyst comprising a combination of a platinum group component, a cobalt component, a tin component and a halogen component with a porous carrier material. The cobalt and platinum group components are reduced to the metallic state while the tin is present in a positive oxidation state.
摘要:
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 cobalt component, and a halogen component with a porous carrier material. A preferred modifying component for the disclosed catalytic composite is a Group IVA metallic component. The platinum or palladium, rhodium, cobalt 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 0.05 to about 5 wt. % cobalt, 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 and rhodium components are present therein in the elemental metallic state and substantially all of the catalytically available cobalt component is present 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. 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.
摘要:
A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.5 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % germanium and about 0.1 to about 3.5 wt. % halogen, wherein the platinum group metal, cobalt and germanium are uniformly dispersed throughout the porous carrier material, wherein substantially all of the platinum group metal is present in the elemental metallic state, wherein substantially all of the germanium is present in an oxidation state above that of the elemental metal, and wherein substantially all of the cobalt is present 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, 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 group metal component, a cobalt component, a germanium component, and a halogen component, for utilization in a hydrocracking process. Other hydrocarbon hydroprocesses are directed toward hydrogenation of aromatic nuclei, the ring-opening of cyclic hydrocarbons, hydrogenation, etc.
摘要:
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 group component, a germanium component, a cobalt component, and a halogen component with a porous carrier material. The platinum group, germanium, cobalt and halogen components are present in the acidic multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.1 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % germanium, 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 group component is in the elemental metallic state, substantially all of the germanium component is in an oxidation state above that of the elemental metal, and substantially all of the catalytically available cobalt is in the elemental metallic state or in a state which is reducible to the elemental metallic state under dehydrocyclization conditions, or in a mixture of these states. A specific example of 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.
摘要:
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 group component, a rhenium component, a tin component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, rhenium component, tin component, cobalt 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 group metal, about 0.01 to about 2 wt. % rhenium, about 0.01 to about 5 wt. % tin, about 0.05 to about 5 wt. % cobalt, 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 group metal is present therein in the elemental metallic state, substantially all of the cobalt and rhenium components are present in the corresponding elemental metallic state or in a state which is reducible to the corresponding elemental metallic state under hydrocarbon conversion conditions or in a mixture of these states, while substantially all of the tin is present therein in an oxidation state above that of the elemental metal. 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.
摘要:
A nonacidic catalytic composite useful for dehydrogenating hydrocarbons comprises a combination of catalytically effective amounts of a platinum group component, a rhenium component, a cobalt component, a tin component and an alkali or alkaline earth component with a porous carrier material. A specific example of the nonacidic catalytic composite disclosed herein is a combination of a platinum group metal, rhenium, cobalt, tin and an alkali or alkaline earth metal with a porous carrier material in amounts sufficient to result in a composite containing, on an elemental basis, about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % rhenium, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % tin and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.