Abstract: Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with a sulfided acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, a tin component, a halogen component, and a sulfur component with a porous carrier material. The platinum or palladium component, rhodium component, tin component, halogen component, and sulfur 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 5 wt. % tin, about 0.1 to about 3.5 wt. % halogen, and about 0.01 to about 1 wt. % sulfur.

Abstract: 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 bismuth component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, bismuth 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. % bismuth, about 0.05 to about 5 wt. % cobalt, and about 0.1 to about 3.5 wt. % halogen.

Abstract: A composition of matter useful, for example, as a catalyst component, comprising macrosized particles containing a mixture of two distinct phases, the phases being 1) calcined discrete entities comprising first alumina a major portion of which have a minimum dimension greater than about 50 microns and a maximum dimension of less than 200 microns and 2) a phase comprising calcined second alumina wherein the weight ratio of (1) to (2) is within the range from about 0.05:1 to about 2:1 and the second alumina is first calcined after the formation of microsize particles.Methods for producing this composition of matter and for using this composition of matter in a hydrocarbon conversion process are also included.

Abstract: A catalyst useful for the hydro-treatment of hydrocarbons comprising, on a refractory inorganic oxide support, the following metals:A. from 0.02 to 2% of at least one platinum metal;B. from 0.02 to 2% of at least one metal belonging to the group consisting of zirconium, titanium, and tungsten;C. from 0.02 to 2% tin.This catalyst is preferably halogenated, typically with chlorine, from 0.4 to 2%.

Abstract: Hydrocarbons are converted by contacting them in a substantially sulfur-free environment at hydrocarbon conversion conditions with an acidic, sulfur-free trimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a tin or lead component, a nickel component and a halogen component with a porous carrier material. The platinum group component, tin or lead component, nickel component, and halogen component are present in the trimetallic 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 or lead, about 0.01 to about 5 wt. % nickel, and about 0.1 to about 3.5 wt. % halogen.

Abstract: 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 gallium component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, gallium 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. % gallium, about 0.05 to about 5 wt. % cobalt, and about 0.1 to about 3.5 wt. % halogen.

Abstract: Isomerizable saturated hydrocarbons are isomerized using a catalytic composite comprising a combination of a platinum or palladium component, an iridium component, a germanium component and a halogen component with a porous carrier material.

Abstract: An iridium-containing catalyst, particularly one comprising platinum, iridium, and silver, and preferably platinum, iridium, silver and halides, composited with a porous inorganic oxide base, is found useful in hydrocarbon conversion reactions, particularly reforming (hydroforming). A naphtha or straight run gasoline can be contacted with such catalyst at reforming conditions in the presence of hydrogen to improve the octane quality of the naphtha or gasoline.

Abstract: Hydroconversion of hydrocarbons, particularly reforming of naphthas, is conducted in the presence of hydrogen with a catalyst comprising technetium in association with a porous solid carrier. Preferably the catalyst contains a platinum group component in addition to technetium.

Abstract: 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 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.

Abstract: Isomerizable alkylaromatic hydrocarbons are isomerized using a catalytic composite comprising a combination of a platinum or palladium component, an iridium component, a germanium component and a halogen component with a porous carrier material.

Abstract: A trimetallic acidic catalytic composite, comprising a combination of catalytically effective amounts of platinum or palladium component, a rhodium component, a germanium component and a halogen component with a porous carrier material, is disclosed. The principal utility of this composite is in the conversion of hydrocarbons, particularly in the reforming of a gasoline fraction. A specific example of the disclosed catalytic composite is a combination of catalytically effective amounts of a platinum component, a rhodium component, a germanium component, and a chloride component with an alumina carrier material.

Abstract: 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.

Abstract: 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.

Abstract: 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, an indium component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, indium 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. % indium, about 0.05 to about 5 wt. % cobalt, and about 0.1 to about 3.5 wt. % halogen.

Abstract: 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 germanium component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, germanium 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. % germanium, about 0.5 to about 5 wt. % cobalt, and about 0.1 to about 3.5 wt. % halogen.

Abstract: New catalyst containing a carrier, platinum, iridium, manganese and optionally halogen. This catalyst is useful for reforming and dehydrogenation of hydrocarbons.

Abstract: An iridium-containing catalyst, particularly one comprising platinum, iridium, and nickel composited with a porous inorganic oxide base, is found useful in hydrocarbon conversion reactions, particularly reforming (hydroforming). Nickel is used in concentrations ranging from about 0.001 to about 0.005 percent based on the total weight of the catalyst. A naphtha or straight run gasoline can be contacted with such catalyst at reforming conditions in the presence of hydrogen to improve the octane quality of the naphtha or gasoline.

Abstract: 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, and a halogen component with a porous carrier material. The platinum or palladium component, rhodium component, rhenium 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, and about 0.1 to about 3.5 wt. % halogen.

Abstract: Compositions comprising iridium and at least one additional metal, preferably platinum, are disclosed in which the iridium and the additional metal or metals are present on a refractory support as highly dispersed polymetallic clusters. The metallic atoms in a cluster are separated by distances of about 2.5 to 4.0A. The degree of coverage of the surface of said refractory support by said polymetallic clusters is lower than about 10% and frequently lower than about 1%. The compositions are useful as hydrocarbon conversion catalysts, and iridiumplatinum catalysts containing a halogen moiety are especially useful for promoting naphtha reforming reactions.

Abstract: The octane number of a hydrocarbon fraction boiling below 425.degree.F is improved by a cracking-isomerization procedure. The C.sub.5 + portion of the resulting product may be used as a motor fuel or as a blending component for motor fuels.

Abstract: A catalytic composition of matter comprising 0.01 to 5 weight percent of a platinum group component, 0.01 to 5 weight percent of a Group IIB component, 0.01 to 3 weight percent of a component selected from the group consisting of a rhenium component and a germanium component and 0.1 to 3 weight percent of a halogen in association with a porous solid carrier and processes for the hydroconversion of hydrocarbons using said catalyst.

Abstract: Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic sulfur-free multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a rhenium component, a nickel component, and a halogen component with a porous carrier material. The platinum group component, rhenium component, nickel 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 0.1 to about 5 wt. % nickel, and about 0.1 to about 3.5 wt. % halogen.

Abstract: A superactive acidic bimetallic catalytic composite, comprising a combination of catalytically effective amounts of a platinum group component and a tin component and of 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 A and substantially all of the platinum group component is present as the elemental metal and substantially all of the tin is present in an oxidation state above that of the elemental metal.

Abstract: A multimetallic acidic catalytic composite, comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, a nickel component and a halogen component with a porous carrier material is disclosed. Preferred modifying components for the disclosed catalytic composite are a sulfur component and/or a Group IVA metallic component. The principal utility of this composite is in the conversion of hydrocarbons, particularly in the reforming of a gasoline fraction to make a high octane reformate. A specific example of the disclosed catalytic composite is a combination of catalytically effective amounts of a platinum component, a rhodium component, a nickel component and a chloride component with an alumina carrier material.

Abstract: The catalyst comprises a Group-VIII-noble-metal hydrogenation component and a small amount of zirconium on a solid catalytic support comprising a porous refractory inorganic oxide. The zirconium may be present either in the elemental form or as compounds. The preferred hydrogenation component is platinum and the preferred porous refractory inorganic oxide is a catalytically active alumina.The reforming process comprises contacting a petroleum hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above-described catalyst. In one embodiment, the process comprises contacting a partially-reformed hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst. In another embodiment, the process comprises contacting a naphtha in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst.

Abstract: Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with a trimetallic acidic catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, a bismuth component, and a halogen component with a porous carrier material. The platinum or palladium component, rhodium component, and halogen component are present in the trimetallic 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, and about 0.1 to about 3.5 wt. % halogen. The bismuth component is present in amounts corresponding to an atomic ratio of bismuth to platinum or palladium of about 0.1:1 to about 1:1.

Abstract: A multimetallic catalytic composite, comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a nickel component, a Group IV-A metallic component, and a halogen component with a porous carrier material, is disclosed. The principal utility of this composite is in the conversion of hydrocarbons, particularly in the reforming of a gasoline fraction to make a high octane reformate. A specific example of the disclosed catalytic composite is a combination of catalytically effective amounts of a platinum component, an iridium component, a nickel component, a germanium component, and a chloride component with an alumina carrier material.

Abstract: Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic sulfur-free multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a rhenium component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, rhenium 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 0.1 to about 5 wt. % cobalt, and about 0.1 to about 3.5 wt. % halogen.

Abstract: The performance of a hydrocarbon conversion process using a trimetallic acidic catalytic composite, comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a nickel component, and a halogen component with a porous carrier material, is improved by sulfiding the catalytic component, prior to any contact with hydrocarbon and after substantially all of the metallic components have been reduced to the corresponding metallic states, so that about 0.01 to 1 wt. % sulfur is incorporated therein, thereby diminishing undesired exothermic demethylation and other hydrogenolysis reactions during the initial operation of the process and markedly increasing the over-all stability of the process.

Abstract: The performance of a hydrocarbon conversion process using a trimetallic acidic catalytic composite, comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a germanium component, and a halogen component with a porous carrier material, is improved by sulfiding the catalytic component, prior to any contact with hydrocarbon, so that about 0.05 to 0.5 wt. % of sulfur is incorporated therein, thereby diminishing undesired exothermic hydrocracking and demethylation during initial operation of the process.

Abstract: A platinum-containing catalyst, particularly one comprising platinum, rhenium, and silver, and preferably platinum, rhenium, silver and halides, composited with a porous inorganic support material, preferably sulfided, is found useful in hydrocarbon conversion reactions, particularly reforming (hydroforming). A naphtha or straight run gasoline can be contacted with such catalyst at reforming conditions in the presence of hydrogen to improve the octane quality of the naphtha or gasoline.