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7608745 |
Process for production of propylene and ethylbenzene from dilute ethylene streams
A process for producing propylene is provided which includes directing an ethylene stream from an ethylene reaction zone to a propylene reaction zone; directing a butene stream to the propylene...
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7566429 |
Catalytic reactive separation system for energy-efficient production of cumene
The present invention relates to an atmospheric pressure, reactive separation column packed with a solid acid zeolite catalyst for producing cumene from the reaction of benzene with propylene. Use...
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7557060 |
Solid phosphoric acid with controlled porosity
The present invention relates to a solid phosphoric acid catalyst and a process for conversion of hydrocarbons using a solid phosphoric acid catalyst. The solid phosphoric acid catalyst comprises...
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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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7518025 |
Process for producing alkyl aromatic compound
A process is provided for producing an alkyl aromatic compound having substituents at the 3- and 5-positions by alkylating an aromatic compound having two substituents in the meta positions with an...
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7504022 |
Process for desulphurizing gasoline by converting sulphur-containing compounds to higher boiling point compounds
A process for desulphurizing a gasoline cut containing olefins, sulphur-containing compounds and optionally molecules belonging to C3 and C4 cuts comprises at least a first step A for contacting...
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7473797 |
Methods of 1,3-enyne preparation using copper (I) catalysts
A copper(I) bi-dentate ligand complex-catalyzed procedure for synthesis of 1,3-enynes. The methods and/or systems of this invention afford a variety of enynes, tolerate a variety of sensitive...
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7470645 |
Zeolite composite, method for making and catalytic application thereof
A catalytic material includes microporous zeolites supported on a mesoporous inorganic oxide support. The microporous zeolite can include zeolite Beta, zeolite Y (including “ultra stable...
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7459073 |
Hydrocarbon conversion using molecular sieve SSZ-47B
The present invention relates to new crystalline molecular sieve SSZ-47B prepared using a N-cyclopentyl-1,4-diazabicyclo[2.2.2] octane cation as a structure-directing agent and an amine too large...
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7420095 |
Purification process of aromatics
Process for reduction of bromine index in aromatics, comprising the steps of feeding an aromatics feed stream which contains olefin impurities to a distillation column; withdrawing an overhead...
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7405336 |
Promoters for controlling acidity and pore size of zeolite catalysts for use in alkylation
A metal-modified alkylation catalyst including a metalizeolite is provided where the metal is one or two selected from the group consisting of yttrium and a rare earth of the lanthanide series...
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7402717 |
Method for producing olefin-substituted aromatic or heteroaromatic compounds
Both low molecular weight and high molecular weight aromatic and heteroaromatic compounds which are substituted by olefins play an important role in industry, for instance as assistants and...
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7393988 |
Process for production of ethylbenzene from dilute ethylene streams
An improvement in a process for the production of ethylbenzene from a dilute ethylene stream wherein an ethylene-containing stream derived from a cracking process is directed to an ethylene...
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7387978 |
Selective para-xylene production via methylation of toluene with methanol in the presence of modified HZSM-5 catalyst
We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method...
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7335295 |
Coated zeolite catalysts and use for hydrocarbon conversion
There is provided a coated zeolite catalyst in which the accessibility of the acid sites on the external surfaces of the zeolite is controlled and a process for converting hydrocarbons utilizing...
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7314962 |
Alkylation of aromatic compounds
The present invention relates to the synthesis of alkylated aromatic compounds using ionic liquids as the solvent. Alkylated aromatic compounds are synthesized by reacting an aromatic compound with...
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7304194 |
Hydrothermal treatment of phosphorus-modified zeolite catalysts
A method of treating a ZSM-5-type zeolite catalyst is carried out by treating a ZSM-5 zeolite catalyst having a silica/alumina mole ratio of at least about 200 with a phosphorus compound. The...
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7294420 |
Production of hydrogen
A method of producing hydrogen for a fuel cell from a hydrocarbon fuel composition, by providing a hydrocarbon fuel composition, which is obtained by contacting a liquid hydrocarbon feed comprising...
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7282616 |
Process for conversion of olefins
A process for converting an olefin feed to hydrocarbons suitable for fuel components or their feedstock. According to the process, an olefin feed, possibly together with another hydrocarbon feed,...
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7276636 |
Styrene process with recycle from dehydrogenation zone
A styrene process is disclosed that uses a dehydrogenation reactor and a transalkylation reactor and in which a significant portion of the benzene, the inhibitors, or both, recovered from the...
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7256152 |
Composition of catalyst and solvent and catalysis processes using this composition
A composition defined:
either as comprising at least one Broensted acid, designated HB, dissolved in a liquid medium with an ionic nature of general formula Q+A−, in which Q+ represents an...
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7247234 |
Method for combined processing of diesel fuel
The essence of the method is that diesel fuel is heated in the process of periodical circulation in a closed circuit including a heat exchanger and a rotor-disc apparatus of open type in...
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7208440 |
Method for pretreatment of catalysts with a phosphoric acid base
The invention relates to a method for pretreatment of a solid catalyst that is obtained by a reaction between an inorganic binder and phosphoric acid, whereby said method comprises a stage in which...
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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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7198711 |
Catalytic cracking processing using an MCM-68 catalyst
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...
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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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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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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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7105713 |
Preparation of alkyl-aromatic products
A method of modifying a ZSM-5-type zeolite catalyst to increase selectivity of the catalyst for para-isomers in aromatic alkylation reactions is provided. The method includes contacting a...
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7094939 |
Styrene process with recycle from dehydrogenation zone
A styrene process is disclosed that uses a dehydrogenation reactor and a transalkylation reactor and in which a significant portion of the benzene, the inhibitors, or both, recovered from the...
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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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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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7019184 |
Non-oxidative conversion of gas to liquids
The present invention provides a process for natural gas in the form, e.g., of stranded gas or associated gas to transportable liquids. More particularly, the present invention provides a process...
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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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6979394 |
Alkylaromatic process with catalyst regeneration
A process for producing a product aromatic compound is disclosed which uses an on-stream alkylation reactor and an off-stream alkylation reactor, and in which at least a portion of the feed...
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6881323 |
Hydrocarbon conversion using zeolite SSZ-54
The present invention relates to new crystalline zeolite SSZ-54 prepared using a templating agent comprising N-isopropyl ethylenediamine, or a mixture of 1-N-isopropyl diethylenetriamine and...
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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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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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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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6841063 |
Hydrocarbon conversion using zeolite SSZ-53
The present invention relates to a new crystalline zeolite SSZ-53 prepared by using phenylcycloalkylmethyl ammonium cations as structure directing agents.
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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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6806397 |
Synthesis of condensed phases containing polycyclic aromatic hydrocarbons fullerenes and nanotubes
The invention relates to methods for producing polycyclic aromatic hydrocarbons, fullerenes, and nanotubes, comprising: a. heating at least one carbon-containing material to form a condensed phase...
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6762334 |
Alkylaromatic process with removal of aromatic byproducts using efficient distillation
A process for the production of alkylaromatic hydrocarbons by alkylating aromatic hydrocarbons with olefinic hydrocarbons is disclosed. The olefinic hydrocarbons are produced by dehydrogenating...
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6700030 |
Method for converting hydrocarbons in a three-phase reactor
A process for converting hydrocarbons in the presence of a catalyst is described that is carried out in a three-phase reactor in which the liquid Peclet number is in the range 0 (excluded) to about...
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6679986 |
Catalytic support with an oxide base from a metal belonging to the SVI group of the periodic table, its preparation and its uses
A catalytic support includes a substantial quantity of at least one SVI group Periodic Table metal oxide in which is incorporated silica. The mass ratio between the quantity of SVI group metal...
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6670517 |
Process for alkylating aromatics
A process for alkylating aromatics is provided which comprises contacting an aromatic-containing feed with alkylating agent in the presence of a silica-bound ZSM-5 zeolite catalyst, wherein the...
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6656268 |
Synthetic porous crystalline MCM-70, its synthesis and use
This invention relates to a new synthetic porous crystalline material, designated MCM-70, having, in its calcined form, the x-ray diffraction pattern of Table 1 above. The invention further resides...
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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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