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7622621 |
Preparation of alkylaromatic hydrocarbons and alkylaryl sulfonates
In a process for preparing an alkylaromatic hydrocarbon composition an olefinic hydrocarbon mixture and an aromatic compound are contacted under alkylation conditions with an aromatic alkylation...
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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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7595427 |
Process for production of styrene by catalytic gas phase dehydrogenation of ethylbenzene
Process for production of styrene by dehydrogenation of ethylbenzene in a reactor system comprising a dehydrogenation reactor and a fast riser catalyst regenerator.
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7579511 |
Process for making cyclohexylbenzene
Provided is a process for making cyclohexylbenzene. The process includes the following steps: (a) contacting benzene and hydrogen in the presence of a first catalyst under hydroalkylation...
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7576248 |
Process for removal of oxygenates from a paraffin stream
The present invention comprises a process for removal of oxygenates from a paraffin-rich or olefin-rich paraffin stream which comprises passing a feed stream, comprising one or more C 10 to C 15 ...
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7576247 |
Processes for making detergent range alkylbenzenes
Spent benzene from a regeneration of a catalyst or solid sorbent in an alkylbenzene complex is subjected to a rough distillation and the benzene fraction from the rough distillation is used a at...
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7525003 |
Process for producing ethylbenzene
This ethylbenzene process involves contacting, in an alkylation zone, a first benzene recycle stream and an ethylene feed stream with an alkylation catalyst to form ethylbenzene. In a...
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7525002 |
Gasoline production by olefin polymerization with aromatics alkylation
A process for the production of high octane number gasoline from light refinery olefins, typically from the catalytic cracking unit, and benzene-containing aromatic streams such as reformate. A...
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7525001 |
Process for preparation of 2,6-dialkyltetralin
The present invention provides a novel process for highly selective preparation of 2,6-dialkyltetralin, a key precursor for 2,6-dimethylnaphthalene (2,6-DMN), which does not require an extra step...
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7524467 |
Process for the production of alkylbenzene
A process for the production of alkylbenzene includes the steps of introducing benzene and an olefin feed into a first alkylation reaction zone in the presence of a first alkylation catalyst under...
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7517506 |
Process for the production of alkylbenzene with ethane stripping
A process for the production of alkylbenzene includes introducing benzene and an olefin feed into a first alkylation reaction zone in the presence of a first alkylation catalyst under first...
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7488861 |
Process for the co-production of cumene and secondary butyl benzene
Cumene and secondary butyl benzene are produced simultaneously in a distillation column reactor by feeding propylene, butylene and benzene to the reactor. Unreacted benzene is removed as overheads...
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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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7411101 |
Production of alkylaromatic compounds
A process for producing a monoalkylation aromatic product, such as ethylbenzene and cumene, utilizing an alkylation reactor zone and a transalkylation zone in series or a combined alkylation and...
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7396967 |
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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7396966 |
Olefinic feedstock treatment processes
Aromatic by-products are sorbed from mono-olefin-containing feedstocks of olefins having from about 6 to 22 carbon atoms per molecule that contain aromatic by-products having from 7 to 22 carbon...
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7393986 |
Process for the production and purification of vinyl aromatic monomers
Process for the production of vinyl aromatic monomers which comprises: a) feeding an aromatic stream and an olefinic stream to an alkylation unit; b) feeding the reaction product coming from the...
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7385098 |
Aromatics alkylation process
The invention relates to a process for producing alkylated aromatics, preferably ethylbenzene, in a multiple bed reactor in which at least two catalysts, each comprising a molecular sieve, are used...
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7361798 |
Production of dialkylbenzenes
The invention relates to a process for producing a desired dialkylbenzene isomer having a formula R 2 C 6 H 4 , where R is an alkyl substituent, by contacting a polyalkylbenzene compound of formula...
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7311815 |
Hydrocarbon products and methods of preparing hydrocarbon products
A method of preparing high linear paraffin or high end-chain monomethyl content products is accomplished by converting synthesis gas in a Fischer-Tropsch reaction to hydrocarbon products. These may...
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7282474 |
Process for the preparation of detergents
A process for the preparation of detergents involving separating the hydrocarbonaceous product stream from a Fischer-Tropsch process producing normally liquid and normally solid hydrocarbons into a...
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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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7268264 |
Critical phase alkylation process
A process for the production of ethylbenzene by the ethylation of benzene in the critical phase over a molecular sieve aromatic alkylation catalyst. An aromatic feedstock having a benzene content...
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7128883 |
Process and apparatus for ethylbenzene production and transalkylation to xylene
The use of two transalkylation catalysts to react aromatic compounds of carbon number nine (and heavier carbon numbers) with benzene to form carbon number eight aromatics is disclosed. The two...
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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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7102044 |
Process for removal of oxygenates from a paraffin stream
The present invention comprises a process for removal of oxygenates from a paraffin-rich or olefin-rich paraffin stream which comprises passing a feed stream, comprising one or more C 10 to C 15 ...
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7102043 |
Process for synthesizing diisopropylbenzene
This invention relates to a process for synthesizing para-diisopropylbenzene utilizing only cumene and propylene as raw materials. This synthesis technique offers the advantage of eliminating...
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7098370 |
Process for the production of phenylalkanes using a catalyst that contains at least one heteropolyacid
The invention relates to a process for the production of a mixture of compounds that comprises for the most part at least one mono-alkylbenzene that belongs to the group that is formed by the 2-,...
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7094940 |
Integrated process for the preparation of alkyl and alkenyl substituted aromatic compounds
Integrated process for the production of alkyl and alkenyl substituted aromatic compounds which comprises simultaneously dehydrogentaing in a reactor-regenerator system a mixture containing an...
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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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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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7002052 |
Integrated process for producing an alkenyl-substituted aromatic compound
An integrated process of preparing a C 2-5 alkenyl-substituted aromatic compound using a C 6-12 aromatic compound and a C 2-5 alkane as raw materials. The process involves feeding a C 2-5 ...
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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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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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6958425 |
Aromatics transalkylation to ethylbenzene and xylenes
The use of transalkylation catalysts to react heavy aromatic compounds of carbon number nine (and heavier carbon numbers) with benzene to form carbon number eight aromatics is disclosed. The...
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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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6875338 |
Process for endothermic conversion of hydrocarbons, its uses, and a unit for carrying out the process
The invention concerns a process for converting hydrocarbons using at least one globally endothermic chemical reaction, in which a hydrocarbon feed successively traverses at least two reaction...
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6855854 |
Process and apparatus for ethylbenzene production and transalkylation to xylene
The use of two transalkylation catalysts to react aromatic compounds of carbon number nine (and heavier carbon numbers) with benzene to form carbon number eight aromatics is disclosed. The two...
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6784330 |
Process for integrating a methanol conversion unit with an FCC unit
A process for treating methane-containing natural gas is provided which comprises: i) converting methane to methanol at or near a site of natural gas production; ii) transporting the methanol to a...
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6765120 |
Selective production of meta-diisopropylbenzene
In a process for the selective production of meta-diisopropylbenzene, a C 9 + aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene is contacted with benzene under conversion...
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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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6743962 |
Preparation of high octane alkylate from Fischer-Tropsch olefins
A Fischer-Tropsch C 3 -C 4 olefin stream is treated to lower the oxygenate content to below 4000 ppm. Another Fischer-Tropsch fraction is hydrotreated and hydrocracked to provide an...
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6740788 |
Integrated process for aromatics production
Enabling a transalkylation process to handle both C 10 alkylaromatics and unextracted toluene permits the following improvements to be realized. No longer extracting toluene allows a...
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6703429 |
Process for converting synthesis gas into hydrocarbonaceous products
The present invention discloses a process for converting synthesis gas into hydrocarbonaceous products including the steps of: (a) subjecting a first portion of synthesis gas to a dual functional...
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6677496 |
Process for the coproduction of benzene from refinery sources and ethylene by steam cracking
A process for the coproduction of purified benzene and ethylene is provided. The method comprises providing a first mixture comprising benzene, toluene, and one or more C 6 to C 7 non-aromatics...
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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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6670516 |
Process for producing phenyl-alkanes using olefin isomerization and paraffin recycle
A process for producing phenyl-alkanes by paraffin dehydrogenation followed by olefin isomerization and then by alkylation of a phenyl compound by a lightly branched olefin is disclosed. An...
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6642425 |
Reactive distillation process for the alkylation of aromatic hydrocarbons
A unified process for reactive distillation under pressure for the alkylation of light aromatic hydrocarbons such as benzene and cumene with straight chain C 6 -C 18 olefins using a solid acid...
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6632971 |
Process for converting natural gas to higher value products using a methanol refinery remote from the natural gas source
A process for treating methane-containing natural gas is provided which comprises: i) converting methane to methanol at or near a site of natural gas production; ii) transporting the methanol to a...
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6620387 |
Catalytic distillation reactor in combination with a multibed catalytic reactor having individual feed inlets
A transalkylation reactor having a plurality of catalyst beds with individual feed points for each bed for converting poly alkylated benzene, typically products from a alkylation process, to mono...
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