Abstract: Multi-reactor systems with aromatization reactor vessels containing a catalyst with low surface area and pore volume, followed in series by aromatization reactor vessels containing a catalyst with high surface area and pore volume, are disclosed. Related reforming methods using the different aromatization catalysts also are described.

Abstract: A composition comprising a supported hydrogenation catalyst comprising palladium and a support, wherein the supported hydrogenation catalyst is capable of selectively hydrogenating highly unsaturated hydrocarbons to unsaturated hydrocarbons; and a dopant comprising a fluorene structure. A method of making a selective hydrogenation catalyst including contacting a support with a palladium-containing compound to form a supported-palladium composition; contacting the supported-palladium composition with a dopant comprising a fluorene structure group to form a selective hydrogenation catalyst precursor; and reducing the selective hydrogenation catalyst precursor to form the selective hydrogenation catalyst.

Abstract: The present disclosure is directed to processes using a new crystalline molecular sieve designated SSZ-96, which is synthesized using a 1-butyl-1-methyl-octahydroindolium cation as a structure directing agent.

Abstract: A process is proposed for preparing acetylene by the Sachsse-Bartholomé process by combustion of a natural gas/oxygen mixture in one or more burners to obtain a cracking gas which is cooled in two or more stages in burner columns, each burner having one or more burner columns assigned thereto, and said cracking gas being quenched with pyrolysis oil in the first cooling stage, to obtain a low boiler fraction comprising benzene, toluene and xylene from the one or more burner columns, which is cooled with direct cooling water and separated in a phase separator into an aqueous phase and an organic phase which comprises benzene, toluene and xylene and is fully or partly introduced to the top of the one or more burner columns as a return stream, wherein the organic phase comprising benzene, toluene and xylene from the phase separator, prior to full or partial recycling to the top of the one or more burner columns, is supplied to a selective hydrogenation over a catalyst which comprises at least one platinum group m

Abstract: Process for the continuous hydrogenation of triglyceride containing raw materials in a fixed bed reactor system having several catalyst beds arranged in series and comprising at least one hydrogenation catalyst comprising an active phase constituted by a nickel and molybdenum element. The raw material feed, hydrogen containing gas and diluting agent are passed together through the catalyst beds at hydrogenation conditions. The raw material feed stream as well as the stream of hydrogen containing gas are divided into an equal number of different partial streams. These are each passed to one catalyst bed in such a manner that the weight ratio of diluting agent to raw material feed is essentially the same at the entrance of all catalyst beds and does not exceed 4:1. The claimed process is preferably conducted at low temperatures and allows the utilization of existing units due to the low recycle ratio.

Abstract: The present invention discloses a process for the selective hydrogenation of phenylacetylene in the presence of styrene conducted in a combined bed, which process comprises under hydrogenation reaction conditions, passing a hydrocarbon fraction feedstock containing phenylacetylene and styrene through a combined bed reactor containing a catalyst A and a catalyst B to contact the feedstock with the catalyst A and the catalyst B in turn, wherein the catalyst A is a nickel-based catalyst, the catalyst B is at least one selected from the group consisting of palladium-based catalysts and copper-based catalysts, and a weight ratio of the catalyst A loaded to the catalyst B loaded is from 0.5:1 to 5:1.

Abstract: The present invention relates to a method of producing aromatic products (benzene/toluene/xylene) and olefin products from petroleum fractions obtained by fluid catalytic cracking, and, more particularly, to a method of producing products comprising high-concentration aromatic products and high value-added light olefin products from light cycle oil obtained by fluid catalytic cracking.

Abstract: The present invention relates to a method of regenerating a ruthenium catalyst suitable for hydrogenation, which comprises flushing the catalyst with inert gas in a regeneration step until the original activity or part of the original activity has been attained. The method is particularly useful for ruthenium catalysts which are used for the hydrogenation of aromatics.

Abstract: The present patent application describes a method of regenerating a ruthenium catalyst for the hydrogenation of benzene, which comprises flushing the catalyst with inert gas in a regeneration step until the original activity or part of the original activity has been attained.

Abstract: The invention concerns a novel process for the preparation of supported metallic catalysts in which the metallic phase is deposited in the form of agglomerates of nanoparticles of metallic oxide and forms a layer of fine thickness at the surface of the support. The process for the preparation of a catalyst comprises preparing in aqueous phase a colloidal suspension of agglomerates of nanoparticles of metallic oxide, then depositing that suspension on a porous support, drying the catalyst precursor obtained, and optionally calcining and reducing the precursor by means of any reducing compound. The invention also concerns the catalysts obtained by said process and their uses in reactions for the transformation of unsaturated organic compounds. The invention is applied to the refining field and more particularly to the treatment of gasolines obtained by steam cracking and/or obtained by catalytic cracking.

Abstract: The present invention relates to an improved process for preparing a substituted or unsubstituted phenylcyclohexane by catalytic hydrogenation of a substituted or unsubstituted biphenyl.

Abstract: The invention concerns a thioresistant catalyst which comprises an active phase deposited on a support, said active phase comprising at least one noble metal from group VIIIB and at least one metallic oxide from group IB or from group IIB, said support being selected from the group formed by refractory oxides, coal, clays, silica-alumina and/or their mixtures, and said support having a specific surface area in the range 110 to 300 m2/g. The invention also concerns the process for the preparation of said catalysts and their uses in the selective hydrogenation of hydrocarbons comprising acetylenic, dienic and/or alkenylaromatic functions. The invention is applicable to the refining field, and more particularly to the treatment of gasolines obtained by steam cracking (pyrolysis gasoline).

Abstract: An improved aromatics saturation process for use with lube oil boiling range feedstreams utilizing a catalyst comprising a hydrogenation-dehydrogenation component selected from the Group VIII noble metals and mixtures thereof on a mesoporous support having aluminum incorporated into its framework and an average pore diameter of about 15 to less than about 40 ?.

Abstract: The present invention relates to the hydrodeoxygenation of pyrolysis oils in the presence of an alcohol.

Abstract: This invention describes a process for hydrogenation of an aromatic feedstock that as a catalytic composition uses a suspension of metal nanoparticles of a mean size of between 1 and 20 nanometers in at least one non-aqueous ionic liquid, whereby said suspension also contains at least one nitrogen-containing ligand, in which said metal nanoparticles comprise a transition metal in the zero-valence state, whereby the transition metal is selected from the groups 8, 9, 10 and 11 of the periodic table and in which said nitrogen-containing ligand comprises 1 to n nitrogen atoms, whereby n is an integer of between 1 and 20.

Abstract: The present invention relates to an eggshell catalyst comprising an active metal selected from the group consisting of ruthenium, rhodium, palladium, platinum and mixtures thereof, applied to a support material comprising silicon dioxide, wherein the pore volume of the support material is 0.6 to 1.0 ml/g, determined by Hg porosimetry, the BET surface area is 280 to 500 m2/g, and at least 90% of the pores present have a diameter of 6 to 12 nm, to a process for preparing this eggshell catalyst, to a process for hydrogenating an organic compound which comprises at least one hydrogenatable group using the eggshell catalyst, and to the use of the eggshell catalyst for hydrogenating an organic compound.

Abstract: Aspects of the invention relate to hydrogenation catalysts, and hydrogenation processes using these catalysts, having particular characteristics, in terms of the amount and type of metal hydrogenation component (or catalytic constituent), as well as the support or substrate. The catalyst compositions, comprising both a noble metal and a lanthanide element on a substantially non-porous substrate, provide advantageous performance characteristics, including conversion, selectivity, and activity stability, as demanded in industrial hydrogenation and selective hydrogenation applications.

Abstract: Efficient and recyclable heterogeneous nanocatalysts and methods of synthesizing and using the same are provided.

Abstract: Disclosed herein is a method for manufacturing a catalyst. The catalyst includes a mesoporous support and a plurality of metal nanoparticles dispersed and positioned in the mesopores of the mesoporous support. The method comprises the steps of: (a1)) allowing an organometallic precursor to be in contact with a mesoporous support, in which the organometallic precursor includes at least one material selected from the group consisting of ruthenium-containing compound, rhodium-containing compound and palladium-containing compound; and (a2) reducing the organometallic precursor in the presence of a supercritical fluid with a reductant, so that the organometallic precursor is reduced to the metal nanoparticles.

Abstract: An aromatics hydrogenation catalyst composition which comprises a noble metal component and a support comprising zirconia, silica, and, optionally, alumina. The catalyst composition is manufactured by co-mulling silica, a zirconium compound, and, optionally, alumina to form a mixture that is formed into a shape, such as by extrusion to form an extrudate, with the shape being calcined and noble metal being incorporated into the shape. The catalyst composition may be used in the saturation of aromatic compounds.

Abstract: A reaction-rectification process is performed in an integrated reaction-rectification system which combines catalytic isomerization and hydroisomerization reactors and distillations zones in an integral column.

Abstract: The invention relates to a shell catalyst containing ruthenium as an active metal, alone or together with at least one other metal of the auxiliary group IB, VIIB or VIII of the periodical system of the elements (CAS version), and applied to a carrier containing silicon dioxide as a carrier material. The invention also relates to a method for producing said shell catalyst, and to a method for hydrogenating an organic compound containing hydrogenable groups, preferably for hydrogenating a carbocyclic aromatic group to form the corresponding carbocyclic aliphatic groups or for hydrogenating aldehydes to form the corresponding alcohols, using the inventive shell catalyst. The invention further relates to the use of the inventive shell catalyst for hydrogenating an organic compound containing hydrogenable groups, preferably for hydrogenating a carbocyclic aromatic group to form the corresponding carbocyclic aliphatic groups or for hydrogenating aldehydes to form the corresponding alcohols.

Abstract: The invention concerns a novel process for the preparation of supported metallic catalysts in which the metallic phase is deposited in the form of agglomerates of nanoparticles of metallic oxide and forms a layer of fine thickness at the surface of the support. The process for the preparation of a catalyst comprises preparing in aqueous phase a colloidal suspension of agglomerates of nanoparticles of metallic oxide, then depositing that suspension on a porous support, drying the catalyst precursor obtained, and optionally calcining and reducing the precursor by means of any reducing compound. The invention also concerns the catalysts obtained by said process and their uses in reactions for the transformation of unsaturated organic compounds. The invention is applied to the refining field and more particularly to the treatment of gasolines obtained by steam cracking and/or obtained by catalytic cracking.

Abstract: Processes comprising: providing a starting material comprising one or more aromatic hydrocarbons, and having an aromatic sulfur compound content and a total sulfur content; reducing the aromatic sulfur compound content and the total sulfur content in the starting material; and hydrogenating the one or more aromatic hydrocarbons in the presence of a supported ruthenium catalyst and hydrogen.

Abstract: Process for regenerating a ruthenium-containing supported hydrogenation catalyst. wherein the catalyst is treated with steam and then dried. Integrated process for hydrogenating benzene to cyclohexane in the presence of a ruthenium-containing supported catalyst, comprising, as well as the hydrogenation step. the catalyst regeneration steps.

Abstract: According to the present invention, when cycloolefins are produced by partially hydrogenating a monocyclic aromatic hydrocarbon with hydrogen in the presence of a ruthenium catalyst, water, and a metal sulfate, the decrease in catalytic activity and cycloolefin selectivity is suppressed by reducing the concentration of chloride ions dissolved in the water in which the catalyst is present to 300 wt ppm or less and regenerating a part or all of the catalyst for reuse. Zinc sulfate is preferably used as the metal sulfate. Further, the raw materials and catalyst to be supplied to the reaction preferably have a reduced chloride ion content. This method can suppress the decrease in long-term catalytic activity and cycloolefin selectivity. Furthermore, the catalytic activity and cycloolefin selectivity after catalyst regeneration can be maintained at a high level. As a result, cycloolefins can be efficiently produced for a long period of time.

Abstract: A catalyst for production of a cycloolefin by partial hydrogenation of a monocyclic aromatic hydrocarbon, wherein the catalyst comprises zirconia as a carrier, and particles having an average primary particle diameter in a range of from 3 to 50 nm and an average secondary particle diameter in a range of from 0.1 to 30 ?m.

Abstract: The invention relates to a coordination complex system comprising a ligand having the formula: R1—SO2—NH—P (XR2)2 (1a); or R1—SO2—N?PH (XR2)2 (1b); or R1—SO(OH)?N—P(XR2)2 (1c); wherein X is independently O, S, NH, or a bond; R1 and R2 are independently selected from hydrogen and substituted or unsubstituted alkyl or aryl; wherein at least one equivalent of the ligand is complexed to an equivalent of a metal selected from a transition metal and lanthanide. The invention also relates to the use of said coordination complexes as catalysts in the hydroformylation, hydrogenation, transfer hydrogenation, hydrocyanation, polymerization, isomerization, carbonylation, cross-coupling, metathesis, CH activation, allylic substitution, aldol condensation, or Michael addition.

Abstract: A process is disclosed for converting distillate to gasoline-range hydrocarbons using a two-stage catalyst system including a first catalyst containing platinum, palladium, or platinum and palladium, and an acidic support, and a second catalyst containing iridium and an inorganic oxide support, and optionally nickel.

Abstract: A functional group-selective hydrogenation catalyst is provided, which is capable of selectively hydrogenating an aliphatic carbon-carbon double bond, aliphatic carbon-carbon triple bond, aromatic formyl group or aromatic nitro group contained in an organic compound. The catalyst includes a carrier, and palladium and an organic sulfur compound supported jointly thereon.

Abstract: This invention describes a process for hydrogenation of an aromatic feedstock that as a catalytic composition uses a suspension of metal nanoparticles of a mean size of between 1 and 20 nanometers in at least one non-aqueous ionic liquid, whereby said suspension also contains at least one nitrogen-containing ligand, in which said metal nanoparticles comprise a transition metal in the zero-valence state, whereby the transition metal is selected from the groups 8, 9, 10 and 11 of the periodic table and in which said nitrogen-containing ligand comprises 1 to n nitrogen atoms, whereby n is an integer of between 1 and 20.

Abstract: In a process for producing cyclohexylbenzene, benzene and hydrogen are fed to at least one reaction zone. The benzene and hydrogen are then contacted in the at least one reaction zone under hydroalkylation conditions with a catalyst system comprising a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom, and at least one hydrogenation metal to produce an effluent containing cyclohexylbenzene. The ratio of the total number of moles of hydrogen fed to said at least one reaction zone to the number of moles of benzene fed to said at least one reaction zone is between 0.4 and 0.9:1.

Abstract: In a process for producing cyclohexylbenzene, benzene and hydrogen are contacted with a catalyst under hydroalkylation conditions to produce an effluent containing cyclohexylbenzene. The catalyst comprises a composite of a molecular sieve, an inorganic oxide different from said molecular sieve and at least one hydrogenation metal, wherein at least 50 wt % of said hydrogenation metal is supported on the inorganic oxide.

Abstract: This invention focuses on the specialized catalyst and/or additive for lower FCCU gasoline and diesel blendstock component sulfur content. This invention utilizes a specified ratio of the transition metal oxides of cobalt and molybdenum to accomplish gasoline and diesel blendstock sulfur reduction. This is accomplished by minimizing sulfur compound formation in the FCCU riser. The cobalt and molybdenum oxides in the presence of H2S from cracked organic sulfur compounds are converted to metal sulfides. A portion of the overall sulfur reduction in the gasoline and diesel blendstock occurs emitted NOx also is reduced.

Abstract: The invention relates to a shell catalyst containing ruthenium as an active metal, alone or together with at least one other metal of the auxiliary group IB, VIIB or VIII of the periodical system of the elements (CAS version), and applied to a carrier containing silicon dioxide as a carrier material. The invention also relates to a method for producing said shell catalyst, and to a method for hydrogenating an organic compound containing hydrogenable groups, preferably for hydrogenating a carbocyclic aromatic group to form the corresponding carbocyclic aliphatic groups or for hydrogenating aldehydes to form the corresponding alcohols, using the inventive shell catalyst. The invention further relates to the use of the inventive shell catalyst for hydrogenating an organic compound containing hydrogenable groups, preferably for hydrogenating a carbocyclic aromatic group to form the corresponding carbocyclic aliphatic groups or for hydrogenating aldehydes to form the corresponding alcohols.

Abstract: An improved hydrotreating process for use with lube oil boiling range feedstreams utilizing a catalyst comprising a hydrogenation-dehydrogenation component selected from the Group VIII noble metals and mixtures thereof, a mesoporous support, and a binder.

Abstract: The selective saturation of unsaturated aliphatic hydrocarbons (e.g., diolefins) in a hydrogenation feed stream comprising an aromatic compound (e.g., benzene) and one or more nitrogen compounds renders is beneficial when the stream or a portion thereof is subsequently treated (e.g., with a zeolitic adsorbent) to remove nitrogen. In particular, the selective saturation of, for example, olefins and diolefins prolongs the life of the nitrogen guard bed. In a representative embodiment, the selective hydrogenation is applied to a recycle benzene-containing stream recovered in the separation section (e.g., from the benzene/toluene splitter overhead) of a styrene production process, prior to treatment with a nitrogen guard bed adsorbent.

Abstract: The invention concerns a catalyst comprising palladium on an oxide of aluminium support. In the calcined state, the oxide of aluminium support has a diffractogram obtained by X ray diffraction comprising peaks which correspond to the following interplanar spacings and relative intensities: Interplanar spacings d (10?10 m) Relative intensities ±5 × 10?3 d I/I0 (%) 4.54? ?3-10 2.70-2.75 ?5-25 2.41? 35-45 2.28? 15-30 2.10? ?0-10 1.987 30-50 1.958 30-50 1.642 0-5 1.519 10-20 1.

Abstract: Hydrogenation processes using a catalyst composition which, preferably comprises a glass substrate, with one or more functional surface active constituents integrated on and/or in the substrate surface. A substantially nonporous substrate has (i) a total surface area between about 0.01 m2/g and 10 m2/g; and (ii) a predetermined isoelectric point (IEP) obtained in a pH range greater than 0, preferably greater than or equal to 4.5, or more preferably greater than or equal to 6.0, but less than or equal to 14. At least one catalytically-active region may be contiguous or discontiguous and has a mean thickness less than or equal to about 30 nm, preferably less than or equal to 20 nm and more preferably less than or equal to 10 nm. Preferably, the substrate is a glass composition having a SARCNa less than or equal to about 0.5.

Abstract: The present patent application describes a method of regenerating a ruthenium catalyst for the hydrogenation of benzene, which comprises flushing the catalyst with inert gas in a regeneration step until the original activity or part of the original activity has been attained.

Abstract: Hydrocarbon streams are hydrogenated catalytically without using a different solvent from the hydrocarbon stream to be hydrogenated, with a basic compound being added to the starting-material stream. The formation of undesired secondary components on the catalyst is thereby effectively prevented.

Abstract: A catalyst for production of a cycloolefin by partial hydrogenation of a monocyclic aromatic hydrocarbon, wherein the catalyst comprises zirconia as a carrier, and particles having an average primary particle diameter in a range of from 3 to 50 nm and an average secondary particle diameter in a range of from 0.1 to 30 ?m.

Abstract: A method for upgrading a naphtha feed to a naphtha product containing less than about 10 wppm of nitrogen and less than about 15 wppm sulfur, the method comprising contacting said naphtha feed with hydrogen in the presence of a bulk multimetallic catalyst under effective reactor conditions to hydrodesulfurize and hydrodenitrogenize said naphtha feed to produce said naphtha product, wherein said bulk multimetallic catalyst comprises at least one Group VIII non-noble metal and at least two Group VIB metals.

Abstract: The present invention relates to an improved process for the hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds as impurities, the aromatics hydrogenation being conducted in a hydrogenation reactor in the presence of a nickel based catalyst. The improvement comprises operating the hydrogenation reactor at a reaction temperature sufficiently high from the start of a run, that the thiopheneic compounds are decomposed and substantially absorbed into the bulk of the nickel catalyst, thereby substantially extending the life of the catalyst.

Abstract: A process for catalytic cracking of a hydrocarbon feedstock feeds to produce an enhanced yield butylenes and isobutane comprises contacting the feedstock with a catalyst composition comprising MCM-68. The MCM-68 may be used as the primary cracking catalyst or may be used as an additive component in conjunction with a conventional cracking catalyst, such as a large pore molecular sieve having a pore size greater than 7 Angstrom.

Abstract: The present invention relates to processes for the preparation of any of the intermediate 1,3-substituted indenes of the formulae (Ia), (Ib) and (Ic) or a mixture thereof: wherein R1, R2, R3, R4, and R5 are defined herein. Compounds of formulae (Ia), (Ib) and (Ic) or mixtures thereof are useful in the preparation of compounds of formula (II): wherein R2, R3 and R6 are also defined herein.

Abstract: The present invention pertains to a process for effecting aromatics hydrogenation which process comprises contacting a hydrocarbon feedstock which contains 10–80 vol. % of aromatics in the presence of a hydrogen-containing gas with a catalyst which comprises hydrogenation metals on a carrier, wherein (i) the hydrogenation metals comprise a combination of platinum and palladium, and (ii) the carrier comprises silica-alumina dispersed in an alumina binder, wherein the alumina binder is present in an amount of 5–50 wt. %, based on the total weight of the silica-alumina and alumina binder present in the carrier, and wherein the silica-alumina comprises 5–50 wt. % of alumina, based on the weight of the silica-alumina.

Abstract: The present invention relates to processes for the preparation of any of the intermediate 1,3-substituted indenes of the formulae (Ia), (Ib) and (Ic) or a mixture thereof: wherein R1, R2, R3, R4, and R5 are defined herein. Compounds of formulae (Ia), (Ib) and (Ic) or mixtures thereof are useful in the preparation of compounds of formula (II): wherein R2, R3 and R6 are also defined herein.

Abstract: The present invention relates to an improved process for the hydrogenation of aromatics in hydrocarbon feedstocks containing thiopheneic compounds as impurities, the aromatics hydrogenation being conducted in a hydrogenation reactor in the presence of a nickel based catalyst. The improvement comprises operating the hydrogenation reactor at a reaction temperature sufficiently high from the start of a run, that the thiopheneic compounds are decomposed and substantially absorbed into the bulk of the nickel catalyst, thereby substantially extending the life of the catalyst.

Abstract: This invention provides novel stable metallic mesoporous transition metal oxide molecular sieves and methods for their production. The sieves have high electrical conductivity and may be used as solid electrolyte devices, e.g., in fuel cells, as sorbents, e.g. for hydrogen storage, and as catalysts. The invention also provides room temperature activation of dinitrogen, using the sieves as a catalyst, which permits ammonia production at room temperature.