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Class 585/415 - Product compound has more C atoms than feed compound, e.g., cyclic polymerization, etc.


Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter in which the aromatic product of the synthesis
No. of patents: 348
Last issue date: 03/20/2012


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NumberTitleIssue Date
8138384Production of alkylated aromatic hydrocarbons from methane
In a process for converting methane to alkylated aromatic hydrocarbons, a feed containing methane is contacted with a dehydrocyclization catalyst under conditions effective to convert said methane to aromatic hydrocarbons and produce a first effluent stream comprisi...
03/20/2012
7361794Zone reactor
In a method of converting alkanes to their corresponding alcohols and ethers a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal bromide in the first zone to provi...
04/22/2008
7355088Process for producing benzene, ethylene and synthesis gas
Process for producing benzene, ethylene and synthesis gas, comprising the steps of: i) introducing a starting gas flow comprising methane and carbon dioxide into a reactor; ii) oxidizing the methane in the reactor at certain reactor conditions optionally using a fir...
04/08/2008
7268094Mixed matrix membrane with super water washed silica containing molecular sieves and methods for making and using the same
The present invention provides a method for preparing silica containing molecular sieves which may be mixed with an organic polymer to create a mixed matrix membrane. Further, this invention includes a method of making such a mixed matrix membrane and the membrane i...
09/11/2007
7262147Method for preparing dehydrocyclodimerization catalyst
This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant pr...
08/28/2007
7230150Zone reactor
In a method of converting alkanes to their corresponding alcohols, ethers, olefins, and other hydrocarbons, a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal hal...
06/12/2007
7199274Preparation of substituted indenes
The present invention relates to a simple process for preparing specifically substituted indenes of the formula (I) or (Ia) to compounds of the formula (II) serving as starting materials ...
04/03/2007
7186873Manufacture 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 distillation zone and under reactive distillation conditions to produce ...
03/06/2007
7186871Process for alkane aromatization using platinum-zeolite catalyst
Aromatization of alkanes having one to four carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes (BTX), uses a catalyst of a crystalline zeolite on which platinum has been deposited, specifically a platinum-containing ZSM-5. A byproduct of th...
03/06/2007
7186872Catalyst for aromatization of alkanes, process of making and process of using thereof
A catalyst of a gallium zeolite on which platinum (Pt/Ga-ZSM-5) has been deposited may be used for aromatization of alkanes having two to six carbon atoms per molecule, such as ethane, propane, butane, etc., to aromatics, such as benzene, toluene and xylenes (BTX). ...
03/06/2007
7176339Manufacture 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 reformate outside the reforming loop, to produce a resulting product havi...
02/13/2007
7176342Method for the preparation of hydrogenated hydrocarbons
A method for the preparation of hydrogenated hydrocarbons comprising a preliminary treatment of natural gas with a catalyst at a high temperature and the subsequent hydrogenation of the mixture of cyclic and/or aromatic hydrocarbons formed. ...
02/13/2007
7161050Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes
A reactant selected from the group consisting of alkanes, alkenes, alkynes, dienes, and aromatics is reacted with a halide selected from the group including chlorine, bromine, and iodine to form a first reaction product. The first reaction product is reacted with a ...
01/09/2007
7146875Locking device for cable assembly
A cable assembly includes an adjuster body having a plurality of teeth, a slider movable along the adjuster body, and a lock body having a plurality of teeth. The lock body is movable between a disengaged position allowing movement of the slider along the adjuster b...
12/12/2006
7148390Integrated process for synthesizing alcohols, ethers, aldehydes, and olefins from alkanes
Alcohols, ethers, aldehydes, and olefins are manufactured from alkanes by mixing an alkane and a halogen selected from the group including chlorine, bromine, and iodine in a reactor to form alkyl halide and hydrogen halide. The alkyl halide only or the alkyl halide ...
12/12/2006
7119240Method for converting natural gas to olefins
A process for converting natural gas to an olefin includes heating the gas to a selected range of temperature to convert a fraction of the gas stream to reactive hydrocarbons, primarily ethylene or acetylene, and reacting with hydrogen in the presence of a catalyst ...
10/10/2006
7119239Manufacture 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 reformate outside the reforming loop, to produce a resulting product havi...
10/10/2006
7033553Chemical reactor
A reactor comprises a reaction zone, optionally containing a catalyst bed, and heat exchange means inoperative contact with the reaction zone, e.g. embedded in a catalyst bed, and arranged so as to received reactants for heat exchange purposes, wherein the heat exch...
04/25/2006
7019182Method of hydrocarbon preservation and environmental protection
Gas phase hydrocarbons resulting from the operation of offshore petroleum wells are converted into corresponding liquid products which are mixed with liquid phased hydrocarbons resulting from operation of the offshore petroleum well for delivery therewith. ...
03/28/2006
7019184Non-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 in which the gas is non-oxidatively converted to aromatic liquid, pref...
03/28/2006
6198012Method for converting n-butane to butenes and BTX
A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene...
03/06/2001
6172273Method for converting hydrocarbons to aromatics using a hybrid catalyst system
A composition is prepared by a method which comprises mixing a first solid material comprising a platinum group metal, a rhenium component, a porous carrier material and, optionally, a halogen component and a second solid material comprising silica and bi...
01/09/2001
6084142Method of making an improved zeolite catalyst, a product from such method, and the use thereof in the conversion of hydrocarbons
An improved zeolite catalyst containing a zeolite and a zinc component manufactured by a novel method having certain process steps necessary for providing the improved zeolite catalyst. The process steps include incorporation of a zinc component with such...
07/04/2000
6048815Zeolite material, a method of making such improved zeolite material and the use thereof in the conversion of non-aromatic hydrocarbons to aromatics and light olefins
A novel high stability catalyst composition comprising a mixture of zeolite and zinc spinel that has been treated with a reducing gas under high temperature conditions, a method of making such high stability catalyst, and the use thereof for converting pa...
04/11/2000
6034020Zeolite-based catalyst material, the preparation thereof and the use thereof
A process for producing catalyst compositions for converting a cracked gasoline feedstock to a product that is principally lower olefins. The catalyst compositions produced thereby. A process for converting a cracked gasoline feedstock to a product that i...
03/07/2000
5998686Process for producing aromatic compounds from aliphatic hydrocarbons
A dehydrocyclo-oligomerization process is provided for converting aliphatic hydrocarbons to aromatics by contacting the feedstock under conversion conditions which a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises first zeolit...
12/07/1999
5993642Hydrocarbon conversion process using a zeolite bound zeolite catalyst
There is provided a process for converting hydrocarbons which utilizes a zeolite bound zeolite catalyst that has enhanced performance when utilized in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportionation of toluene, i...
11/30/1999
5959170Methane conversion process
A method for converting methane to higher hydrocarbon products and coproduct water wherein a gas comprising methane and a gaseous oxidant are contacted with a nonacidic catalyst at temperatures within the range of about 700 to 1200° C. A preferred cataly...
09/28/1999
5932777Hydrocarbon 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 hydrocarbon to a product stream comprising aromatic hydrocarbons and...
08/03/1999
5877368Method for producing aromatic hydrocarbons
Disclosed is a method for producing aromatic hydrocarbons, which comprises contacting a light hydrocarbon feedstock comprising olefins and/or paraffins with a zeolite catalyst in a fixed-bed, adiabatic reactor containing a fixed catalyst bed comprised of ...
03/02/1999
5873994Process for aromatization of a cracked gasoline feedstock using a catalyst containing an acid leached zeolite and tin
An aromatization process for converting a portion of a cracked gasoline feedstock to aromatics utilizing a catalyst comprising an acid leached zeolite and tin under process conditions suitable for converting a portion of the cracked gasoline feedstock to ...
02/23/1999
5849967Hydrocarbon conversion process using binderless zeolite L catalyst
Binderless zeolite L particles are prepared by a method in which particles are formed from silica and from 0 to 95 wt % preformed zeolite L crystallites, and the particles are thereafter reacted with an alkaline solution comprising a source of alumina to ...
12/15/1998
5817904Method for the conversion of methane into longer chain hydrocarbons
A method for converting methane by an oxidative coupling reaction to longer chain hydrocarbons comprising cofeeding methane and oxygen simultaneously and continuously into a reaction zone to form a mixture, contacting said methane and oxygen mixture under...
10/06/1998
5763722Method for the methane chemical conversion into C2 hydrocarbons
An improved method for the oxidative conversion of methane into higher hydrocarbons in which methane and oxygen are continuously and simultaneously cofed into a reaction zone under effective oxidative coupling conditions and contacted with a solid catalys...
06/09/1998
5456822Catalyst of the galloaluminosilicate type containing gallium, a nobel metal of the platinum family and at least on additional metal, and its use in the aromatization of hydrocarbons
Disclosed are reactions for the aromatization of hydrocarbons containing 2 to 9 carbon atoms per molecule, with a composite catalyst containing: an MFI zeolite in hydrogen form, the framework containing at least one of the elements silicon, aluminum and/or gal...
10/10/1995
5436380Process for producing aromatic hydrocarbons
A process for producing aromatic hydrocarbons comprises bringing hydrocarbons having 2 to 12 carbon atoms into contact with a modified crystalline galloaluminosilicate catalyst prepared by treating a crystalline galloaluminosilicate having a tool ratio of...
07/25/1995
5406017Methane conversion process
A method for converting methane to higher hydrocarbon products and coproduct water wherein a gas comprising methane and a gaseous oxidant are contacted with a nonacidic catalyst at temperatures within the range of about 700° to 1200° C. A preferred cata...
04/11/1995
5365005Process for the thermal conversion of methane and a reactor for carrying out the process
A process and apparatus for the thermal conversion of methane into hydrocarbons of higher molecular weight, comprising a reactor (1) of elongate form, connected on the one hand, at a first end, to means (5) for supplying gaseous mixture containing methane...
11/15/1994
5336393Process for catalytically converting organic compounds
Catalytic conversion of organic compounds wherein catalysts come into contact with steam is performed efficiently by using a catalyst which comprises an MFI type zeolite having a ratio of SiO2 /(Al2 O3 +Ga2 O
08/09/1994
5321179Process for preparing of aromatic hydrocarbons
A process for producing modified crystalline galloalumino silicate having the ZSM-5 crystal structure, and a process for producing aromatic hydrocarbons by the use of a catalyst containing the above modified crystalline galloalumino silicate are disclosed...
06/14/1994
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