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7625482 |
Nanoparticulate-catalyzed oxygen transfer processes
Nanoparticulates of oxygen transfer materials that are oxides of rare earth metals, combinations of rare earth metals, and combinations of transition metals and rare earth metals are used as...
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7608558 |
Hydrotreating catalyst containing a group V metal
The present invention pertains to a sulfur-containing catalyst composition suitable for the hydrotreating of hydro-carbon feeds which comprises a Group VIB metal component selected from molybdenum,...
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7601881 |
Isomerization catalyst and process
A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated...
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7591942 |
Bulk bi-metallic catalysts made from precursors containing an organic agent
Bulk bi-metallic catalysts for use in the hydroprocessing of hydrocarbon feeds, as well as a method for preparing such catalysts. The catalysts are prepared from a catalyst precursor containing an...
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7556729 |
Method for the selective hydrodesulfurization of an olefin containing hydrocarbon feedstock
Described is a method for the selective hydrodesulfurization of an olefin-containing hydrocarbon feedstock that uses a catalyst composition having a high content of a nickel component and an...
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7510648 |
Method for desulfurization of liquid hydrocarbons and process for production of hydrogen for fuel cells
The invention provides an optimum method for utilizing a desulfurizing agent for liquid hydrocarbons which can efficiently remove sulfur content from kerosene without performing addition of...
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7491313 |
Two-step hydroprocessing method for heavy hydrocarbon oil
A method is disclosed for hydroprocessing a heavy hydrocarbon oil, comprising a first hydroprocessing step of bringing a heavy hydrocarbon oil into contact with a Catalyst (1) with a certain...
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7476309 |
Two-stage heavy feed hpc process
The present invention pertains to a method for hydroprocessing a heavy hydrocarbon oil, comprising bringing a heavy hydrocarbon oil into contact with hydroprocessing catalyst I in the presence of...
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7455762 |
Selective hydrodesulfurization process
This invention relates to a process for selectively hydrodesulfurizing naphtha feedstreams using a catalyst comprising at least one hydrodesulfurizing metal supported on a low acidity, ordered...
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7445702 |
Desulphurisation
Propane and/or butanes are separated from a hydrocarbon feedstock contaminated with alkyl mercaptans by fractional distillation at such a pressure that the separated overheads stream containing...
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7435336 |
Process for carrying out gas-liquid countercurrent processing
The present invention relates to a process for carrying our gas-liquid countercurrent processing comprising passing the liquid material and the gas reactant in countercurrent flow through the fixed...
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7435335 |
Production of low sulfur distillates
A process for hydroprocessing a distillate stream to produce a stream exceptionally low in sulfur, with total aromatics and polynuclear aromatics being moderately reduced. A distillate stream is...
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7422679 |
Low CO for increased naphtha desulfurization
Naphtha hydrodesulfurization selectivity is increased by reducing the amount of CO X (CO plus ½ CO 2 ) in the hydrodesulfurization reaction zone to less than 100 vppm. While this is useful for...
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7419586 |
Two-stage hydrodesulfurization of cracked naphtha streams with light naphtha bypass or removal
A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically-bound sulfur and olefins. The olefinic naphtha stream is selectively...
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7399402 |
Method for hydrotreatment of a mixture of hydrocarbon compounds, rich in olefins and aromatic compounds
Process for the hydrotreatment of a mixture of C4 to C8 hydrocarbon-based compounds, rich in olefins and monoaromatic compounds, by hydrogenation in the presence of a solid catalyst, characterized...
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7361624 |
Catalyst for hydrotreating gas oil, process for producing the same, and method for hydrotreating gas oil
A catalyst for hydrotreating gas oil, which comprises an inorganic oxide support having provided thereon: at least one selected from metals in the Group 6 of the periodic table at from 10 to 30% by...
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7357856 |
Nitrogen removal from olefinic naphtha feedstreams to improve hydrodesulfurization versus olefin saturation selectivity
A two stage process for selectively hydrodesulfurizing olefinic and sulfur and nitrogen-containing naphtha feedstreams wherein the first stage is a nitrogen removal stage to produce a naphtha...
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7347931 |
Partially coked catalysts that can be used in the hydrotreatment of fractions that contain sulfur-containing compounds and olefins
The invention relates to a catalyst for the selective hydrodesulfurization of hydrocarbon-containing feedstocks that comprise sulfur-containing compounds and olefins. This catalyst comes in a...
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7341657 |
Process for reducing sulfur and olefin contents in gasoline
Disclosed is a process for reducing sulfur and olefin contents in gasoline, comprising contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and an paraffin-modification...
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7306714 |
Process for hydrodesulphurizing cuts containing sulphur containing compounds and olefins in the presence of a supported catalyst comprising group VIII and VIB elements
A process for hydrodesulphurizing gasoline cuts is carried out in the presence of a catalyst comprising at least one group VIII element, at least one group VIB element, and a support with a...
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7297251 |
Multi-stage hydrodesulfurization of cracked naphtha streams with a stacked bed reactor
A process for the selective hydrodesulfurization of naphtha streams containing a substantial amount of olefins and organically bound sulfur. The naphtha stream is selectively hydrodesulfurized by...
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7297252 |
Catalyst activation in the presence of olefinic hydrocarbon for selective naphtha hydrodesulfurization
An improved catalyst activation process for olefinic naphtha hydrodesulfurization. This process maintains the sulfur removal activity of the catalyst while reducing the olefin saturation activity.
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7291258 |
HDS process using selected naphtha streams
A process for concurrently fractionating and hydrotreating a full range naphtha stream. The full boiling range naphtha stream is subjected to simultaneous hydrodesulfurization and splitting into a...
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7268097 |
Desulfurizing agent for hydrocarbon derived from petroleum, method for producing hydrogen for use in fuel cell and method for producing nickel-based desulfurizing agent
A desulfurizing agent comprising a silica-alumina carrier having an Si/Al mole ratio of 10 or less and nickel carried thereon; a desulfurizing agent for hydrocarbons derived from petroleum which...
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7247235 |
Hydrogenation of middle distillate using a counter-current reactor
A process for the hydrogenation of a hydrocarbon feed includes contacting a major amount of the hydrocarbon feed with hydrogen in a counter-current manner in a first reaction zone under...
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7235173 |
Hydrotreating catalyst that contains a nitrogen-containing organic compound and its use
A hydrotreating catalyst that contains at least one element of group VIB and/or group VIII of the periodic table and optionally phosphorus and/or silicon, with an organic compound as an additive...
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7232515 |
Hydrofining process using bulk group VIII/Group VIB catalysts
A process for hydrofining a lubricating oil feedstock comprising contacting the feedstock with a hydrofining catalyst in a hydrofining zone under hydrofining conditions wherein the hydrofining...
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7229548 |
Process for upgrading naphtha
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...
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7223333 |
Process for hydrodesulphurization of cuts containing sulphur containing compounds and olefins in the presence of a catalyst comprising an element of group VIII and tungsten
Conducting the hydrodesulphurization of gasoline cuts in the presence of a catalyst comprising at least one support, at least one element of group VIII and tungsten, in which the atomic ratio...
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7220352 |
Selective hydrodesulfurization of naphtha streams
A process for the selective hydrodesulfurization of naphtha streams containing sulfur and olefins. A substantially olefins-free naphtha stream is blended with an olefins/sulfur-containing naphtha...
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7196034 |
Nickel-iron-silica-alumina
The invention is directed to a catalyst suitable for the hydrogenation of hydrocarbon resins, comprising a supported nickel on silica and alumina catalyst, said catalyst having a nickel content of...
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7186329 |
High-macropore hydroprocessing catalyst and its use
The present invention pertains to a catalyst comprising 7–20 wt. % of a Group VIB metal component, calculated as trioxide on the weight of the catalyst, and 0.5 to 6 wt. % of a Group VIII metal...
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7169294 |
Hydroprocessing catalyst and use thereof
The invention pertains to a hydroprocessing catalyst suitable for the conversion of heavy hydrocarbon oils, which comprises 7–20 wt. % of Group VI metal, calculated as trioxide, and about 0.5–6...
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7160439 |
Catalytic composition for the upgrading of hydrocarbons having boiling points within the naphtha range
A process is described for the upgrading of hydrocarbon mixtures which boil within the naphtha range containing sulfur impurities, i.e. a hydrodesulfuration process with contemporaneous skeleton...
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7156980 |
Catalytic composition for the upgrading of hydrocarbon mixtures
The present invention relates to a catalytic composition which comprises a beta zeolite, a metal of group VIII, a metal of group VI B and optionally one or more oxides as carrier. The catalytic...
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7090767 |
Hydrodesulfurization of gasoline fractions
A method for processing a gasoline range hydrocarbon stream wherein a single reactor/distillation tower stream is fractionated into a light fraction and a heavy fraction, the light fraction is...
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7078130 |
Metallic mesoporous transition metal oxide molecular sieves, room temperature activation of dinitrogen and ammonia production
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...
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7074735 |
Selectively suppressing catalytic hydrogenation
The hydrogenation activity of a heteroatom removal catalyst, having activity for both heteroatom removal and hydrogenation, is selectively suppressed by a treatment which comprises contacting the...
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7074324 |
Process to remove sulfur contaminants from hydrocarbon streams
A process for removing sulfur compounds from hydrocarbon streams by contacting the hydrocarbon stream, especially a gasoline stream, with an adsorbent material. The adsorbent material is...
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7070690 |
Process for conversion of hydrocarbons on a catalyst with controlled acidity
The invention relates to a process for conversion of hydrocarbons in the presence of at least one catalyst with controlled acidity, characterized in that the level of activity of said catalyst in...
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7041866 |
Solid-acid isomerization catalyst and process
A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated...
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7005059 |
Catalyst having at least one element of group VIIB and its use in hydro-treating
The invention relates to a catalyst for the transformation of hydrocarbon-containing feedstocks, in particular hydrotreatment, comprising at least one metal of group VIIB and at least one...
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6977322 |
Isomerization catalyst and processes
A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated...
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6972086 |
Process comprising two gasoline hydrodesulfurization stages and intermediate elimination of H2S formed during the first stage
The invention relates to a process for the production of gasoline with a low sulfur content comprising at least three stages: a first stage in which the sulfur-containing compounds present in the...
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6929738 |
Two stage process for hydrodesulfurizing distillates using bulk multimetallic catalyst
A two stage hydrodesulfurizing process for producing low sulfur distillates. A distillate boiling range feedstock containing in excess of about 3,000 wppm sulfur is hydrodesulfurized in a first...
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6923904 |
Process for effecting ultra-deep HDS of hydrocarbon feedstocks
The invention pertains to a process for reducing the sulfur content of a hydrocarbon feedstock to a value of less than 200 ppm, preferably less than 50 ppm, which comprises subjecting a catalyst...
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6913688 |
Multi-stage hydrodesulfurization of cracked naphtha streams with interstage fractionation
A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically bound sulfur and olefins. The olefinic naphtha stream is selectively...
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6896795 |
Process for the production of gasolines with low sulfur contents
The invention relates to a process for the production of gasoline with a low sulfur content that comprises at least the following stages:
a1) at least a selective hydrogenation of diolefins,...
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6893554 |
Naphtha desulfurization with selectively suppressed hydrogenation
Naphtha is selectively hydrodesulfurized in the presence of a sulfided, treated catalyst comprising at least a Group VIB metal catalytic component, to produce sulfur-reduced naphtha with reduced...
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6875340 |
Process for adsorptive desulfurization of light oil distillates
A process for adsorptive desulfurization of gasoline or diesel oil or aromatics lower than C 12 containing organic sulfide impurities, wherein these feedstocks contact an amorphous alloy adsorbent...
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