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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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7601254 |
Integrated fluid catalytic cracking process
A process for the conversion of a hydrocarbon feedstock to produce olefins, aromatic compounds and ultra low sulfur diesel wherein the hydrocarbon feedstock is reacted in a fluid catalytic cracking...
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7592496 |
Light olefin production via dimethyl ether
Improved processing for the production of light olefins is provided involving synthesis gas conversion to form an effluent including product dimethyl ether, subsequent separation of the product...
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7589244 |
Process for the production of propylene from a feed comprising olefins containing four and/or five carbon atoms with co-production of desulphurized gasoline with a high octane number
For producing propylene and co-producing desulphurized gasoline with a high octane number from a catalytically cracked gasoline cut, and a steam cracking C4/C5 cut, conduct at least one one-step...
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7576251 |
Process for the double bond hydroisomerization of butenes
A process is disclosed for the preferential conversion to 2-butene of a stream containing C4 compounds including 1-butene and 2-butene. The process involves mixing the C4 stream with a first...
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7550638 |
Integrated cracking and metathesis process
An integrated method that comprises a hydrocarbon thermal cracking operation to form at least one olefin product, coupled with dimerization and metathesis operations, the dimerization operation...
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7544851 |
Method of synthesizing aluminophosphate and silicoaluminophosphate molecular sieves
In a method of synthesizing an aluminophosphate or silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by mixing a plurality of starting materials including at least a source of...
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7528290 |
Apparatuses and methods for separating butene-1 from a mixed C4 feed
A process is disclosed for recovering 1-butene from a feed steam comprising n-butane, isobutane and butene isomers using a single, divided wall distillation column. The disclosed process includes...
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7511184 |
Molecular sieve catalyst composition, its making and use in conversion processes
The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst...
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7462752 |
Process to convert linear alkanes into alpha olefins
This invention provides for a process to convert branched or linear alkanes to branched or linear alpha olefins (AO) of the same carbon number. The process comprises the steps of: a) halogenating...
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7462277 |
Continuous method for separating a C4 cut
In a continuous process for fractionating a C 4 fraction (C 4 ) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing...
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7425658 |
Process for producing 1-octene from butadiene
Method for producing 1-octene from butadiene by dimerizing and alkoxylating butadiene in the presence of one or more alkoxy substituted phosphine ligands under alkoxydimerization conditions with an...
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7420096 |
Olefin oligomerization
Limiting the sulphur level in olefin feedstocks to zeolite-catalysed oligomerization enhances selectivity to trimer and catalyst life and activity.
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7414165 |
Oligomerization process
In a process for oligomerizing an olefinic hydrocarbon feedstock comprising sulfur-containing molecules, the feedstock is contacted in the absence of hydrogen with a first metal oxide catalyst at a...
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7411107 |
Alkene separation process
A process for the oxidation of a C 2 to C 4 alkane to produce the corresponding alkene and carboxylic acid which process comprises separation of the alkene from a mixture of the alkene, the...
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7411105 |
Process and installation for the oligomerization of olefins that use a membrane separation
This invention relates to a process for the oligomerization of olefins that have 2 to 6 carbon atoms comprising at least:
a) One reaction stage in which a first effluent that comprises...
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7408094 |
Process for the production of olefins
A process for the production of olefins from a hydrocarbon comprising the steps of: a) passing a first feed stream comprising gaseous reactants to a first reaction zone wherein said gaseous...
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7378563 |
Molecular sieve compositions, catalysts thereof, their making and use in conversion processes
The invention relates to a conversion process of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene, in the presence of a molecular...
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7371916 |
Conversion of an alcoholic oxygenate to propylene using moving bed technology and an etherification step
The average propylene selectivity per on-stream cycle of an alcoholic oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is...
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7371909 |
Method for producing 1-olefins using palladium carbene compounds
The invention relates to a process 1-olefins by telomerization of compounds having conjugated double bonds with a telogen in the presence of a noble metal telomerization catalyst, hydrogenation of...
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7368623 |
Process for producing 1-octene from butadiene in the presence of titanium catalysts
A method is described for the preparation of 1-octene starting from butadiene, wherein in a first step (a) the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a...
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7368622 |
Process for the preparation of 1-octene
Process in two steps for the preparation of 1-octene starting from butadiene which comprises: a first step (a) in which the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the...
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7368621 |
Method for producing 1-octene from crack-C4
The invention relates to a process for preparing 1-octene from a C 4 fraction from a cracker by telomerization of the 1,3-butadiene present in the C 4 fraction from a cracker by means of methanol...
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7323099 |
Two stage fluid catalytic cracking process for selectively producing C2 to C4 olefins
A process for selectively producing C 2 to C 4 olefins from feedstock such as a gas oil or resid. The feedstock is reacted in a first stage comprising a fluid catalytic cracking unit wherein it...
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7317133 |
Process for enhanced olefin production
The present invention relates to a process for the production of light weight olefins comprising olefins having from 2 to 3 carbon atoms per molecule from an oxygenate feedstock. The process...
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7309806 |
Maintaining molecular sieve catalytic activity under water vapor conditions
The invention is directed to methods for protecting metalloaluminophosphate molecular sieves, particularly silicoaluminophosphate (SAPO) molecular sieves, from loss of catalytic activity due to...
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7301063 |
Process for increasing production of light olefin hydrocarbon from hydrocarbon feedstock
A process for increasing the production of light olefin hydrocarbons from a hydrocarbon feedstock. A process for producing an aromatic hydrocarbon mixture and liquefied petroleum gas (LPG) from a...
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7291311 |
Process for controlling a moving bed combustion zone and its use
Process for controlling the combustion zone of a fluidized bed process comprising a regeneration zone and a reaction zone, the catalyst circulating between these two zones, and the regeneration...
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7273958 |
Process for isomerization of a C7 fraction with opening of naphthene rings
A process for the production of an isomerate with a RON that is at least equal to 80 and that contains less than 1% by weight of aromatic compounds, starting with a fraction consisting mostly of...
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7271304 |
Process and apparatus for the production of diesel fuels by oligomerisation of olefinic feed streams
This invention provides a process for the production of diesel boiling range hydrocarbons, the process including at least the steps of obtaining an olefinic feed stream from one or more hydrocarbon...
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7268265 |
Apparatus and process for light olefin recovery
The present invention relates to a process and apparatus for the production of light olefins comprising olefins having from 2 to 3 carbon atoms per molecule from a feedstock containing heavier...
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7262332 |
Process for multistage conversion of a charge comprising olefins with four, five or more carbon atoms, with the aim of producing propylene
The invention relates to a process for production of propylene in particular from a C4 and/or C5 cut from steam cracking and/or catalytic cracking, preferably comprising both butenes and pentenes,...
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7238844 |
Olefin oligomerization
This invention is to a method of oligomerizing an olefin feed stream. The olefin feed stream contains at least one C 2 to C 12 olefin to obtain an olefin feed stream and has less than 1,000 ppm...
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7230151 |
Two catalyst process for making olefin
This invention is to a process of making olefin, particularly ethylene and propylene, from an oxygenate feed. The invention uses two or more zeolite catalysts. Examples of zeolite catalysts include...
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7227045 |
Process for the preparation of linear olefins and use thereof to prepare linear alcohols
Process for the preparation of a mixture comprising C 5 + linear olefins, which process comprises the steps of
(a) reacting carbon monoxide and hydrogen in the presence of an effective...
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7223895 |
Production of propylene from steam cracking of hydrocarbons, particularly ethane
An ethane or other hydrocarbon feedstock is steam cracked to produce an ethylene stream which is processed in an ethylene plant recovery section to separate an ethane recycle and a polymer grade or...
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7220886 |
Olefin metathesis
A process for the production of propylene from the metathesis of ethylene and 2-butene is disclosed wherein a mixed C 4 stream is first treated to enrich and separate the 2-butene from 1-butene...
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7214841 |
Processing C4 olefin streams for the maximum production of propylene
In order to maximize the production of propylene when the external supply of ethylene is limited, the C 4 cut from a hydrocarbon cracking process is first subjected to autometathesis prior to any...
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7208647 |
Process for the conversion of natural gas to reactive gaseous products comprising ethylene
A process for converting natural gas to reactive gaseous products, comprising heating the gas through a selected range of temperature for sufficient time, or combusting a portion of the gas at a...
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7193121 |
Method for producing 4-vinylcyclohexene, ethyl benzole and styrene
The invention relates to a process for preparing 4-vinylcyclohexene, which comprises the steps
(A) providing an n-butane-containing feed gas stream, (B) feeding the n-butane-containing feed...
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7183451 |
Process for the conversion of natural gas to hydrocarbon liquids
A process for converting natural gas to liquid hydrocarbons comprising heating the gas through a selected range of temperature for sufficient time and/or combustion of the gas at a sufficient...
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7183450 |
Olefin oligomerization
This invention is to a method of oligomerizing an olefin feed stream. The olefin feed stream contains at least one C 2 to C 12 olefin to obtain an olefin feed stream and has from about 1,000 ppm...
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7161051 |
Integration of a methanol synthesis system with a methanol to olefin reaction system
Disclosed is a process for producing light olefins in an integrated methanol synthesis/MTO reaction system. The integrated system implements a shared separation system for separating oxygenate...
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7161050 |
Method 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...
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7151198 |
Integration of a methanol synthesis system with a methanol to olefin reaction system
Disclosed is a process for producing light olefins in an integrated methanol synthesis/MTO reaction system. The integrated system implements a shared separation system for separating oxygenate...
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7148390 |
Integrated 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...
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7135603 |
Process for the production of olefins
Process for the production of olefins such as ethylene from a hydrocarbon such as ethane. The process involves passing a mixture of the hydrocarbon and an oxagen-containing gas through a catalyst...
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7135602 |
Method and apparatus for selective deep catalytic cracking of hydrocarbons
Provided herein is a method and apparatus for selective deep catalytic cracking of petroleum naphthas or other hydrocarbon feedstocks. The feed comprising the hydrocarbons to be cracked and steam,...
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7115790 |
Method for the production of 1-octene by reductive telomerisation
The invention relates to a process for preparing 1-octene by telomerization of 1,3-butadiene using a reducing agent in the presence of a telomerization catalyst and partial hydrogenation of the...
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7102048 |
Methanol feed for producing olefin streams
This invention provides a methanol composition, a method of making the composition, and a method of using the composition. The methanol composition of this invention is supplemented with certain...
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