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9035118 |
Integrated hydrogenation/dehydrogenation reactor in a platforming process
A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and partially processing each feedstream in separate... |
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9029618 |
Integrated hydrogenation/dehydrogenation reactor in a platforming process
A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and partially processing each feedstream in separate... |
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9024099 |
Co-current catalyst flow with feed for fractionated feed recombined and sent to high temperature reforming reactors
A process is presented for the increasing the yields of aromatics from reforming a hydrocarbon feedstream. The process includes splitting a naphtha feedstream into a light hydrocarbon stream, and... |
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9024098 |
Initial hydrotreating of naphthenes with subsequent high temperature reforming
A process for the production of aromatics through the reforming of a hydrocarbon stream is presented. The process utilizes the differences in properties of components within the hydrocarbon stream... |
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9024097 |
Integrated hydrogenation/dehydrogenation reactor in a catalytic reforming process configuration for improved aromatics production
A process for reforming hydrocarbons is presented. The process involves applying process controls over the reaction temperatures to preferentially convert a portion of the hydrocarbon stream to... |
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8969640 |
Dehydrogenation of alkanols to increase yield of aromatics
The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting alkanols to hydrocarbons. The invention includes... |
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8962902 |
Dehydrogenation of alkanols to increase yield of aromatics
The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting alkanols to hydrocarbons. The invention includes... |
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8940950 |
Method and apparatus for obtaining aromatics from diverse feedstock
The process relates to the use of any naphtha-range stream containing a portion of C8+ aromatics combined with benzene, toluene, and other non-aromatics in the same boiling range to produce... |
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8937186 |
Acids removal and methane conversion process using a supersonic flow reactor
Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes removing at least a portion of acids from a hydrocarbon stream. The hydrocarbon stream is... |
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8937205 |
Process for the production of xylenes
A hydrocarbon upgrading process is described in which a hydrocarbon feed is treated in at least one of a steam cracker, catalytic cracker, coker, hydrocracker, and reformer under suitable... |
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8921633 |
Process for the production of xylenes and light olefins
In a hydrocarbon upgrading process, a hydrocarbon feed is treated in at least one of a steam cracker, catalytic cracker, coker, hydrocracker, and reformer under suitable conditions to produce a... |
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8859835 |
Regeneration of metal-containing catalysts
In a process for the regeneration of a coked metal-containing catalyst, the coked catalyst is contacted in a regeneration zone with an atmosphere which contains carbon dioxide and carbon monoxide... |
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8835706 |
Process for the conversion of mixed lower alkanes to aromatic hydrocarbons
A process for the conversion of mixed lower alkanes into aromatics which comprises first reacting a mixed lower alkane feed comprising at least propane and ethane in the presence of an... |
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8754276 |
Reverse flow reactors for propylene and aromatics production
A reverse flow regenerative reactor having first and second zones, each having first and second ends, the first zone having a plurality of channels capable of separately conveying at least two... |
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8742187 |
Variations on prins-like chemistry to produce 2,5-dimethylhexadiene from isobutanol
The method of the present invention provides a high yield pathway to 2,5-dimethylhexadiene from renewable isobutanol, which enables economic production of renewable p-xylene (and subsequently,... |
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8735515 |
“Green” plastic materials and methods of manufacturing the same
A process is disclosed for producing plastic materials by providing a biology based feedstock and reacting the biology based feedstock to form a feedstock capable of reaction to form the plastic... |
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8722950 |
Process for producing propylene and aromatics from butenes by metathesis and aromatization
The invention is for a process for producing propylene and hexene (along with ethylene, pentenes, product butenes, heptenes and octenes) by metathesis from butenes (iso-, 1- and cis and trans 2-)... |
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8552240 |
Process for producing propylene
Process for producing propylene from a propanol feedstock A2 by reacting the propanol feedstock A2 in a vapor phase dehydration reactor wherein the propanol is convened at a temperature comprised... |
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8461404 |
Aromatization catalyst comprising prolongated silica and methods of making and using same
A prolongated silica bound zeolite support comprising from about 85 wt % to about 95 wt % zeolite. A catalyst composition comprising a prolongated silica bound zeolite supporting at least one... |
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8378162 |
Process for methane conversion
The invention relates to the integration of a dehydroaromatization process with the processes for the utilization of associated gas; gases comprising methane and higher hydrocarbons, and/or... |
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8084658 |
Integrated process for preparing benzene and ammonia from aliphatic hydrocarbons and nitrogen
Process for the integrated preparation of aromatics and ammonia by reaction of a gas stream A comprising at least one C1-C6-aliphatic and nitrogen in the presence of at least one catalyst, wherein... |
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8048388 |
Process of manufacturing para-xylene
This disclosure relates to a process of manufacturing para-xylene, comprising (a) contacting a pygas feedstock and methylating agent with a catalyst under reaction conditions to produce a product... |
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8034987 |
Process for producing propylene and aromatic hydrocarbons, and producing apparatus therefor
It is an object of the present invention to provide an improved process whereby the yield structure of the components can be varied by a simple method, and the products can be produced stably and... |
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8017822 |
Integrated process to coproduce aromatic hydrocarbons and ethylene and propylene
An integrated process for producing aromatic hydrocarbons and ethylene and/or propylene and optionally other lower olefins from low molecular weight hydrocarbons, preferably methane, which... |
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7901594 |
Polyacene derivatives and production thereof
The present invention relates to polyacene derivatives represented by general formula (I) below: (wherein R1 to R10, etc. each represents hydrogen atom, hydrocarbon group, or an alkoxy group; A1... |
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7776207 |
Process to produce middle distillate
A process for producing alkyl aromatic middle distillate fuels is described. The process includes (a) catalytically converting paraffinic naphtha to a composition containing benzene and olefins;... |
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7772447 |
Production of liquid hydrocarbons from methane
In a process for converting methane to liquid hydrocarbons, a feed containing methane is contacted with 0 dehydrocyclization catalyst under conditions effective to convert said methane to aromatic... |
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7727490 |
Aromatic production apparatus
One exemplary embodiment can include an aromatic production apparatus. The aromatic production apparatus can include a first fractionation zone, a second fractionation zone, and a third... |
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7439409 |
Process for para-xylene production from light aliphatics
Low-value mixed butanes are processed to obtain a high yield of high-purity para-xylene. Processing steps may comprise fractionation to recover isobutane, dehydrogenation of the isobutane to... |
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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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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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7067708 |
Process for the preparation of p-xylene
The present invention relates to a process for the preparation of para-xylene from trimethylpentane. |
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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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6323381 |
Manufacture of high purity benzene and para-rich xylenes by combining aromatization and selective disproportionation of impure toluene
A process is set forth for reacting impure toluene to obtain benzene, toluene and a para-rich xylene stream, which are substantially free of close-boiling non-aromatics. The impure toluene... |
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6281398 |
Process for the production of high octane number gasolines
A process is disclosed for improving the yield in the production of high octane gasoline after naphtha reforming by utilizing a transalkylation step to upgrade the heavy and light fractions coming... |
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6143166 |
Process for production of aromatics in parallel reformers with an improved catalyst life and reduced complexity
This process relates to reforming a full-boiling range hydrocarbon feed in two parallel stages while maximizing the catalyst life of the heavy cut reformer and/or reducing the complexity of the... |
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6057487 |
Method for producing 2,6-DMN from mixed dimethylnaphthalenes by crystallization, adsorption and isomerization
A method is disclosed to produce 2,6-dimethylnaphthalene (2,6-DMN), used for the production of polyethylene naphthalate, at high purity and high yield from a mixture of dimethylnaphthalene isomers... |
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6001241 |
BTX from naphtha without extraction
A hydrocarbon feedstock is catalytically reformed in a sequence comprising a zeolitic-reforming zone containing a catalyst comprising a platinum-group metal and a nonacidic L-zeolite and an... |
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5958217 |
Two-stage reforming process that enhances para-xylene yield and minimizes ethylbenzene production
A hydrocarbon feed is reformed to enhance para-xylene yield and to minimize ethylbenzene production. The hydrocarbon feed is subjected to catalytic aromatization at elevated temperatures in the... |
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5932777 |
Hydrocarbon conversion
A hydrocarbon conversion process comprises: (1) contacting a hydrocarbon feed such as, for example, gasoline, with a catalyst under a sufficient condition to effect the conversion of the... |
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5865986 |
Hydrocarbon conversion
This is a process for upgrading a petroleum naphtha fraction. The naphtha is subjected to reforming and the reformate is cascaded to a benzene and toluene synthesis zone over a benzene and toluene... |
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5773676 |
Process for producing olefins and aromatics from non-aromatics
A multi-step process for converting non-aromatic hydrocarbons (preferably a gasoline-type hydrocarbon mixture) to lower olefins (preferably, ethylene and propylene) and aromatic hydrocarbons... |
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5658453 |
Integrated aromatization/trace-olefin-reduction scheme
A process combination is disclosed to selectively upgrade naphtha in a manner to obtain an aromatics-rich, low-olefin product from the combination. Preferably the naphtha is subjected to... |
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5600046 |
Combination dehydrocyclodimerization and dehydrogenation process for producing aromatic and olefin products
This invention deals with a process for converting aliphatic C2 -C6 hydrocarbons into C6+ aromatics and C3= /C4= olefins. The process involves combining dehydrocyclodimerization (DHCD) with... |
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5489724 |
High pressure drop endothermic process
Aliphatic feeds are converted to olefins and/or aromatics in a multi pressure reactor system. A high pressure first stage reactor generates much or all of the hydrogen needed to reduce catalyst... |
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5436402 |
Method for preparing p-isobutylstyrene
A method for preparing a high-purity p-isobutylstyrene is here disclosed which comprises the first step of reacting o- and/or m-isobutylethylbenzene, if necessary, together with isobutylbenzene,... |
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5414172 |
Naphtha upgrading
A process for upgrading low octane naphthas to produce gasoline products with low levels of benzene and aromatics while retaining a high pool octane uses a paraffinic naphtha reformer feed which... |
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5409595 |
Heavy naphtha conversion
Catalytically cracked naphthas containing C9 + hydrocarbons are hydrocracked over a crystalline zeolite, typically, mildly steamed zeolite beta then subjected to reforming to achieve a gasoline... |
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5407558 |
Method for controlling multistage aromatization process to give high aromatic barrel per calendar day throughput
A method is provided of selecting operating parameters for an aromatization process having at least penultimate and final stages, each containing a respective catalyst, for optimum aromatic barrel... |