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7205376 |
Processes for the production of cumene, polyetherimides, and polycarbonates
A method for the manufacture of polycarbonate by combining methane and inlet water to produce methanol, converting the methanol to propylene, gasoline aromatics, and gasoline olefins, converting...
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7205445 |
Method of continuous production of polyalkylbiphenyls
A method of continuously producing polyalkylbiphenyls involves reacting biphenyl and an olefin in the presence of a solid acid catalyst to obtain a reaction mixture containing monoalkylbiphenyls...
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7202390 |
Process for production of cumene
This invention related to an improved process for preparation of cumene. More particularly, the present invention relates to a process for the preparation of cumene using catalytic membrane...
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7196237 |
Method of preparing an alkyl aromatic product
A method of modifying a zeolite catalyst to increase selectivity of the catalyst is achieved by dissolving alumina in a phosphorus-containing acid solution, and treating the zeolite catalyst with...
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7189885 |
Staged process for producing linear 2-phenyl-alkanes
The process disclosed herein is a process for producing phenyl-alkanes by alkylation of an aryl compound with an olefinic compound and which uses a mordenite catalyst and a silica-alumina catalyst....
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7186873 |
Manufacture of xylenes by reactive distillation of reformate
A process is provided for the production of xylenes from reformate by reactive distillation. The process is carried out by methylating the benzene/toluene present in the reformate in a reactive...
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7161052 |
Process for the valorization of a charge of hydrocarbons and for reducing the vapor pressure of said charge
A process is described for the valorization of a charge of hydrocarbons and for reducing the vapour pressure of said charge, comprising three steps: a step a) consisting of separating said charge...
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7151199 |
Hydrocarbon conversion processes using non-zeolitic molecular sieve catalysts
Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the...
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7148388 |
Process for preparing and olefinic hydrocarbon mixture
In a process for preparing an olefinic hydrocarbon mixture comprising at least 5% by weight of mono-olefin oligomers of the empirical formula:
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7119239 |
Manufacture of xylenes using reformate
A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the...
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7115198 |
Hydrocarbon conversion using molecular sieve SSZ-51
A novel crystalline aluminophosphate and metalloaluminophosphate of the molecular sieve type, denominated SSZ-51, is prepared by hydrothermal synthesis from reactive sources of aluminum and...
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7094941 |
Selectivated metallosilicate catalyst composite for alkyl aromatic conversion, process for the preparation thereof, use thereof in hydrocarbon conversion
A repeated “soak and dry” selectivation process for preparing a modified metallosilicate catalyst composite is disclosed comprising of a mixture of amorphous silica, alumina and a pore size...
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7091385 |
Acylation using molecular sieve SSZ-71
The present invention relates to new molecular sieve SSZ-71 prepared using a N-benzyl-1,4-diazabicyclo[2.2.2]octane cation as a structure-directing agent, methods for synthesizing SSZ-71 and...
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7091390 |
Hydrocarbon conversion processes using catalysts comprising UZM-8 and UZM-8HS compositions
Hydrocarbon conversion processes using a new family of zeolites identified as UZM-8 and UZM-8HS are described. The UZM-8 and UZM-8HS are related in that the UZM-8HS are derived from the UZM-8...
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7084304 |
Acylation using molecular sieve SSZ-70
The present invention relates to new crystalline molecular sieve SSZ-70 prepared using a N,N′-diisopropyl imidazolium cation as a structure-directing agent, methods for synthesizing SSZ-70 and...
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7084318 |
Toluene methylation process
A method of preparing a xylene product is carried out in a reactor containing a phosphorus-treated ZSM-5-type zeolite catalyst. The method includes initiating a unique start-up of a toluene...
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RE39222 |
Process for preparing 2,6-dialkylnaphthalene
A process for producing 2,6-dialkylnaphthalene from a hydrocarbon feedstock that contains at least one component selected from the group consisting of dialkylnaphthalene isomers,...
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7083714 |
Hydrocarbon conversion using molecular sieve SSZ-65
The present invention relates to new crystalline molecular sieve SSZ-65 prepared using 1-[1-(4-chlorophenyl)-cyclopropylmethyl]-1-ethyl-pyrrolidini
um or...
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7081556 |
Aromatics conversion with ITQ-13
There is provided a process for aromatics conversion by contacting a feed suitable for aromatics conversion under conversion condition and in the presence of a catalyst comprising ITQ-13. Examples...
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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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7071370 |
Mordenite zeolite alkylation catalyst
The present invention is directed to a mordenite zeolite catalyst having a controlled macropore structure. The present invention is also directed to a mordenite zeolite catalyst composite and a...
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7060863 |
Multistage reaction system with interstage sparger systems
A process and system for the vapor phase alkylation of an aromatic substrate in a multi-stage alkylation reaction zone having a plurality of series-connected catalyst beds spaced from one another...
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7041863 |
Zeolite Y alkylation catalysts
The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for...
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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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7030285 |
Alkylation process
A side-chain of a substituted aromatic compound is alkylated by reacting the aromatic compound with an alkylating agent in the presence of a catalyst. The catalyst comprises a restructured smectite...
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7022887 |
Method for preparing diarylalkanes
Diarylalkanes are prepared by alkylating an aromatic compound with a styrene derivative in the presence of a catalyst of specific synthetic porous crystalline material. The aromatic compound can...
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7019185 |
Aromatic alkylation process
In a method for producing monoalkylated aromatic compounds, an aromatic feed is contacted with an alkylating agent in the presence of a catalyst comprising a molecular sieve having an X-ray...
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7019165 |
Polyoxometallate catalysts and catalytic processes
An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable...
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6984764 |
Alkylaromatics production
The present invention provides a process for producing a monoalkylated aromatic compound, particularly ethylbenzene or cumene, in which a polyalkylated aromatic compound is contacted with an...
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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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6930217 |
Catalyst containing microporous zeolite in mesoporous support and method for making same
A catalytic material includes a microporous zeolite supported on a mesoporous inorganic oxide support. The microporous zeolite can include zeolite beta, zeolite Y or ZSM-5. The mesoporous inorganic...
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6930219 |
Mesoporous material with active metals
A process for treating organic compounds includes providing a composition which includes a substantially mesoporous structure of silica containing at least 97% by volume of pores having a pore size...
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6921843 |
Process for the preparation of diemethyl cumenes
The present invention relates to a process for the preparation of dimethylcumenes comprising alkylating a substrate comprising of one or more xylene isomers with an alkylating agent in the presence...
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6916459 |
Zeolite ITQ-16
This invention refers to a new zeolitic material included under the ITQ-16 denomination, to the method for obtaining them and their use as catalysts. This material, ITQ-16 zeolite, is...
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6911568 |
Regeneration of aromatic alkylation catalysts using hydrocarbon stripping
A process for alkylating an alkylatable aromatic compound is disclosed, in which the process includes:
(a) contacting the alkylatable aromatic compound and an alkylating agent with an...
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6909026 |
Process for liquid phase aromatics alkylation comprising in-situ catalyst reactivation with polar compounds
The catalyst becomes at least partially deactivated by sorbing catalyst poisons present in the feed during a process for alkylating aromatics by contacting a feed containing benzene, toluene,...
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6897346 |
Aromatic conversion process employing low surface area zeolite Y
A process for the transalkylation of polyalkylated aromatic compounds over a high porosity zeolite-Y molecular sieve having a surface area of no more than 500 m 2 /g. A feedstock comprising a...
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6872864 |
Method of controlling monoalkyl aromatic process
A process for the alkylation of aromatics with olefins using a solid catalyst is disclosed, wherein the olefin ratio and/or the maximum olefin concentration in the alkylation catalyst bed is...
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6867323 |
Cross-coupling reaction of organosilicon nucleophiles
Improved methods for generating a —C—C— bond by cross-coupling of a transferable group with an acceptor group. The transferable group is a substituent of an organosilicon nucleophile and the...
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6867340 |
Disproportionation/transalkylation of aromatic hydrocarbons
A catalyst for the disproportionation/transalkylation of various hydrocarbons consists of a carrier and a metal component supported on the carrier. The carrier comprises 10 to 80 wt % of mordenite...
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6864399 |
Silica-supported alkylation catalyst
The alkylation of benzene-containing feedstock over a zeolite beta alkylation catalyst which is formulated with a silica binder and has an average regeneration coefficient of at least 95% for at...
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6858769 |
Lithium aluminate layered catalyst and a selective oxidation process using the catalyst
A catalyst for the selective oxidation of hydrogen has been developed. It comprises an inert core such as cordierite and an outer layer comprising a lithium aluminate support. The support has...
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6858129 |
Tailored zeolite bound zeolite catalysts and its use for hydrocarbon conversion
There is provided a zeolite bound zeolite catalyst which does not contain significant amount of non-zeolitic binder and can be tailored to optimize its performance and a process for converting...
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6855855 |
Aromatics alkylation
The invention provides a process for the alkylation of an aromatics compound with a olefin alkylation agent which comprises contacting the aromatic compound, especially benzene, with the alkylation...
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6841704 |
Process for preparing cumene which is used in the preparation of phenol
Disclosed is a method for the preparation of cumene by reacting isopropanol or a mixture of isopropanol and propene with benzene in the presence of a β-zeolite catalyst having a SiO 2 /Al 2 O 3 ...
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6835862 |
Alkylation process operating at high recycle ratios
A process for the alkylation of aromatics with olefins using a solid catalyst is disclosed, wherein the effluent recycle ratio to the alkylation catalyst bed is maintained more than a lower limit....
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6827843 |
Hydrocarbon conversion using molecular sieve SSZ-63
The present invention relates to new crystalline molecular sieve SSZ-63 prepared using N-cyclodecyl-N-methyl-pyrrolidinium cation as a structure-directing agent, methods for synthesizing SSZ-63 and...
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6822129 |
Method of converting aromatic compound
A method for isomerizing aromatic compounds, wherein at least one aromatic compound is contacted with a zeolite-containing catalyst, and in which the zeolite is characterized in that: (1) the...
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6808620 |
Hydrocarbon conversion using zeolite SSZ-64
The present invention relates to new crystalline molecular sieve SSZ-64 prepared using a N-cyclobutylmethyl-N-ethylhexamethyleneiminium cation or N-cyclobutylmethyl-N-ethylheptamethyleneiminium...
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6787023 |
Metal-containing macrostructures of porous inorganic oxide, preparation thereof, and use
There is provided a catalyst containing porous macrostructures comprised of: (a) a three-dimensional network of particles of porous inorganic material (e.g., zeolites); and, (b) at least one metal...
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