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7622032 |
Hydrocarbon conversion using molecular sieve SSZ-74
The present invention relates to new crystalline molecular sieve SSZ-74 prepared using an hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication as a structure-directing agent, and processes...
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7550073 |
Hydrocarbon conversion 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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7537685 |
Hydrocarbon conversion 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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7525008 |
Process for C8 alkylaromatic isomerization
A process for isomerizing ethylbenzene into xylenes such as para-xylene using a zeolitic catalyst system based on low Si/Al 2 MTW-type zeolite that preferably is substantially free of mordenite....
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7510644 |
Zeolites and molecular sieves and the use thereof
A method for making a zeolite includes providing a reaction mixture containing mixed inorganic oxides and an organic templating agent, heating the reaction mixture, removing the templating agent at...
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7495137 |
Two-stage aromatics isomerization process
This invention is drawn to a process for isomerizing a non-equilibrium mixture of alkylaromatics in two sequential zones, the first zone operating in the absence of hydrogen using a platinum-free...
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7425660 |
Ethylbenzene conversion and xylene isomerization processes and catalysts therefor
Catalysts comprising a combination of molecular sieve having a pore diameter of from about 4 to 8 angstroms and a catalytically-effective amount of molybdenum hydrogenation component in an...
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7411103 |
Process for the catalytic isomerisation of aromatic compounds
A process for catalytic isomerisation of alkyl aromatic compounds in a hydrocarbon process stream comprising contacting the alkyl aromatic compound-containing hydrocarbon stream under isomerisation...
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7390395 |
Hydrocarbon conversion using molecular sieve SSZ-56
The present invention relates to new crystalline molecular sieve SSZ-56 prepared using a N,N-diethyl-2-methyldecahydroquinolinium cation as a structure directing agent, methods for synthesizing...
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7381858 |
Xylene process using perm-selective separations
Processes are disclosed for production of purified products from a fluid mixtures of C 8 aromatics by means of integration of perm-selective separations with purified product recovery operations....
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7371914 |
Xylene isomerization with an added benzene
Xylene isomerization processes, especially those processes in which ethylbenzene is also converted, are beneficially affected by adding benzene to the feed.
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7371913 |
Selective aromatics isomerization process
A process for isomerizing xylenes while retaining ethylbenzene in a C 8 -aromatics stream in liquid phase uses a gallium-substituted pentasil zeolite in the absence of hydrogen.
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7358414 |
Para-xylene process using perm-selective separations
Processes and apparatus are disclosed for recovery of purified products from a fluid mixture by means of integrated perm-selective separations with purified product recovery operations. More...
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7297830 |
Process for isomerizing non-equilibrium xylene-containing feed streams
Reduced co-production of toluene and C 9 and higher aromatics such as trimethylbenzene, methylethylbenzene, and diethylbenzene is achieved in processes for the isomerization of xylenes to close to...
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7270792 |
Process for producing para-xylene
A process and a system for increasing para-xylene production from a C 8 aromatic feedstream by coupling at least one xylene isomerization reactor with at least one pressure swing adsorption unit...
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7247762 |
Process for xylene isomerization and ethylbenzene conversion
A process for the isomerization of xylenes and the conversion of ethylbenzene to benzene and ethane using a catalyst system comprising two catalysts. The first catalyst is unselectivated and...
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7241931 |
Process for the preparation of 2,6-dimethylnaphthalene
A highly selective process is described for preparing 2,6-dimethylnaphthalene which comprises reacting a naphthalene hydrocarbon selected from naphthalene, methylnaphthalenes, dimethylnaphthalenes,...
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7166756 |
Method for hydrocarbon isomerization
The present invention is directed at a process to isomerize C 10+ hydrocarbon feedstreams by contacting a C 10+ hydrocarbon feedstream with a steamed catalyst.
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7157397 |
Process for the production of mesitylene
A process is described for the synthesis of mesitylene, characterized in that mesitylene is obtained starting exclusively from pseudocumene, without the use of any other chemical compound,...
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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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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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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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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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7011810 |
Crystalline molecular sieves
MFS structure type zeolite manufacture is facilitated by using a second organic molecule in addition to the usual hexaethylpentane diammonium salt.
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6949687 |
Process for the production of mesitylene and durene
A process is described for the contemporaneous preparation of mesitylene and durene, characterized in that mesitylene and durene are obtained exclusively starting from pseudo-cumene without the use...
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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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6924405 |
Xylene isomerization
A xylene isomerization process is disclosed in which any ethylbenzene in the feed is removed, either by dealkylation or isomerization, in a separate reactor upstream of the xylene isomerization...
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6878264 |
Process for conversion of organic compounds
A process for conversion of organic compounds including contacting a catalyst formed from a CFI-type zeolite including an atomic ratio of silicon to a heteroatom of 45 or less, and long axes of...
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6872866 |
Liquid phase process for C8 alkylaromatic isomerization
A liquid or partially liquid phase process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene uses a zeolitic catalyst system preferably based on zeolite beta and on...
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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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6831203 |
Metal-containing zeolite catalyst, preparation thereof and use for hydrocarbon conversion
There is provided a zeolite bound zeolite catalyst which does not contain significant amounts of non-zeolitic binder and a process for converting hydrocarbons utilizing the zeolite bound zeolite...
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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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6797849 |
Xylene isomerization
A process for isomerizing xylenes in a feed containing xylenes is disclosed which process comprises: contacting the feed with a first isomerization catalyst in a first reactor under a first set of...
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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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6709570 |
Method for preparing a catalyst
A method for preparing a catalyst comprising a zeolite and a low acidity refractory oxide binder which is essentially free of alumina which method comprises: (a) preparing an extrudable mass...
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6660896 |
Isomerization of ethylbenzene and xylenes
In a process for isomerizing a feed comprising ethylbenzene and a mixture of xylene isomers, the feed is first contacted under xylene isomerization conditions with a first catalyst composition to...
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6645370 |
Preparation of high silica zeolites bound by zeolite and use thereof
This invention relates to a process for producing zeolite-bound high silica zeolites and the use of the zeolite-bound high silica zeolite produced by the process for hydrocarbon conversion. The...
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6635791 |
Process for pretreating a catalyst based on an EUO zeolite under severe conditions
The present invention concerns a process for pretreating a catalyst used in hydrocarbon conversion processes, comprising the following steps: a) pretreating a catalyst containing at least one...
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6616830 |
Hydrocarbon conversion using zeolite SSZ-57
The present invention relates to a new crystalline zeolite SSZ-57 and processes employing SSZ-57 in a catalyst.
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6616910 |
Process for preparation of an EUO-structural-type zeolite, the zeolite that is obtained and its use as catalyst for isomerization of C8-aromatic compounds
This invention relates to a process for synthesis of an EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element...
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6547958 |
Hydrocarbon conversion using zeolite SSZ-59
The present invention relates to new crystalline zeolite SSZ-59 and processes employing SSZ-59 as a catalyst.
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6541408 |
Zeolite catalysts having stabilized hydrogenation-dehydrogenation function
A zeolite catalyst suitable for use in shape-selective hydrocarbon conversion processes. The catalyst is modified by incorporation therein of a hydrogenation-dehydrogenation functional metal,...
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6540906 |
Hydrocarbon conversion using zeolite SSZ-60
The present invention relates to new crystalline zeolite SSZ-60 and processes employing SSZ-60 as a catalyst.
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6540905 |
Hydrocarbon conversion using zeolite SSZ-58
The present invention relates to new crystalline zeolite SSZ-58 and processes employing SSZ-58 as a catalyst.
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6518472 |
Stabilized dual bed xylene isomerization catalyst system
A catalyst system suitable for the isomerization of a xylene and conversion of ethylbenzene in a feed containing xylene and ethylbenzene comprising a first catalyst having activity for the...
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