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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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7528201 |
Synthesis of silicoaluminophosphate molecular sieves
In a method of synthesizing a silicoaluminophosphate molecular sieve comprising a CHA framework type material, an AEI framework type material, or a material comprising at least one intergrown phase...
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7518026 |
Catalyst and process for the conversion of oxygenates to olefins
A catalyst composition for use in the conversion of oxygenates to olefins comprises a first crystalline silicoaluminophosphate molecular sieve comprising at least one intergrown form of an AEI...
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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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7501546 |
Process for producing a branched hydrocarbon component
The invention relates to a process for producing high-quality hydrocarbon base oil of biological origin. The process of the invention comprises alcohol condensation, hydrodeoxygenation, and...
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7411106 |
Molecular sieve compositions, catalyst thereof, their making and use in conversion processes
The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably...
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7378562 |
Process for removal of alkynes and/or dienes from an olefin stream
The present invention is a process for removing alkynes and/or dienes from an olefin product stream withdrawn from an oxygenate-to-olefins reactor. The process comprises hydrogenating a first...
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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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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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7358410 |
Processes for forming polypropylene from an oxygenate-contaminated monomer feedstock
The present invention provides various processes for producing polypropylene from an oxygenate-contaminated propylene-containing feedstock, preferably derived from an oxygenate to olefin reaction...
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7355086 |
Method for stabilizing catalyst activity during MTO unit operation
A method for maintaining the activity of silicoaluminophosphate (SAPO) molecular sieve catalyst particles during oxygenate to olefin conversion reactions. After regeneration of SAPO catalyst...
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7329787 |
Process for transforming hydrocarbons into a fraction having an improved octane number and a fraction with a high cetane index
A process is described for transforming an initial hydrocarbon feed containing 4 to 15 carbon atoms, limits included, into a hydrocarbon fraction having an improved octane number and a hydrocarbon...
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7329788 |
Process for producing gasoline components
Process for producing gasoline components. The process comprises feeding a fresh olefinic hydrocarbon feedstock to a reaction zone, in which its structure is first isomerized. The isomerized...
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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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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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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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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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7067597 |
Process of making polypropylene from intermediate grade propylene
This invention concerns using an intermediate grade propylene stream as feed to a polypropylene forming reaction system. The intermediate grade propylene stream is preferably recovered form the...
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6936742 |
Production of diisobutene from tertiary butyl alcohol
A process for the production of diisobutene is disclosed wherein tertiary butyl alcohol is dehydrated to isobutene in a distillation column reactor containing an acid cation exchange resin catalyst...
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6864398 |
Conversion of syngas to distillate fuels
An integrated process for producing high value products, including for example distillate fuel, from syngas is disclosed. The integrated process of the present invention produces high value...
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6852897 |
Process for the preparation of lower olefins
A process for the preparation of lower olefins which comprises the step (A) of separating in a high-pressure state a mixed fluid (I) containing dimethyl ether (DME) and methanol at a specified...
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6844476 |
Process to control conversion of C4+ and heavier stream to lighter products in oxygenate conversion reactions
A method for converting heavy olefins present in a product stream exiting a first reaction zone into light olefins and carbonaceous deposits on a catalyst without separation of the heavy olefins...
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6770791 |
Production of olefin dimers and oligomers
Disclosed is an olefin containing stream from an oxygenate to olefin process, and a process for making olefin dimer and oligomer product from the olefin containing stream using a nickel based...
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6768034 |
Catalytic production of olefins at high methanol partial pressures
Disclosed is a catalytic method for operating an oxygenate to olefins conversion reaction to provide a substantial quantity of prime olefin in the product. The product is provided by operating...
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6740790 |
Making an olefin product from an oxygenate
Disclosed is a method for making olefin product from an oxygenate-containing feedstock. In the method, a silicoaluminophosphate molecular sieve catalyst is contacted with the oxygenate-containing...
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6660812 |
Production of olefin derivatives
Disclosed is a system of making an olefin derivative from a dilute olefin feed. Dilute olefin is sent to an olefin reaction unit to form an olefin derivative product. The olefin derivative product...
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6632972 |
Process for the selective preparation of DIB from an i-butene-containing C4 stream
The invention relates to a process for preparing diisobutylene (DIB) from an i-butene-containing C 4 raffinate I, in which the C 4 stream is passed through a first hydroisomerization reactor (A)...
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6605206 |
Process for increasing the yield of lubricating base oil from a Fischer-Tropsch plant
A process for increasing the yield of C 10 plus hydrocarbon products from a Fischer-Tropsch plant which comprises the steps of (a) separating a Fischer-Tropsch product into a wax fraction and a...
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6518473 |
Dimerizing olefins to make lube base stocks
Lube base stock compositions, and methods for preparing the compositions, are disclosed. The methods involve subjecting a predominantly C 5-11 olefin-containing feedstock to dimerization...
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6362386 |
Method and device for obtaining isobutenes from conjugated hydrocarbons
A process for isolating isobutene from a hydrocarbon mixture by a) combining the C 4 -hydrocarbon mixture with a primary C 3 - or C 4 -alkanol; b) reacting the isobutene in the C 4 -hydrocarbon...
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6156947 |
Process for the production of butene-1 from a mixture of C.sub.4 olefins
A simplified process for jointly producing butene-1 and ether in a catalytic distillation column which comprises an upper catalytic zone for etherification and a lower catalytic zone for...
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6005150 |
Process for the production of butene-1 from a mixture of C4 olefins
A simplified process for jointly producing butene-1 and ether in a catalytic distillation zone which comprises an upper catalytic zone for etherification and a lower catalytic zone for...
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5753583 |
Supported palladium catalyst
A supported palladium catalyst having a palladium content of from 0.001 to 2 wt %, in which palladium is present, substantially in the absence of promotor metal, in the form of a layer having a...
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4929780 |
Multistage process for converting oxygenates to liquid hydrocarbons and ethene
An integrated process for converting methanol and other lower molecular weight oxygenates to gasoline and distillate range liquid hydrocarbons and ethene is disclosed. When it is desirable to...
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4922049 |
Synthesis of cis-olefins
A process for the synthesis of cis-olefins from cis-olefinic alcohols consisting essentially of the following steps: (a) reacting a cis-olefinic alcohol with a source of an alkali metal ion...
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4686313 |
Low nitrogen iron-containing Fischer-Tropsch catalyst and conversion of synthesis gas therewith
Synthesis gas (a mixture of hydrogen gas and carbon monoxide) is converted to hydrocarbons by flowing the gas first over iron-containing Fischer-Tropsch catalyst and then over a zeolite. The...
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4590320 |
Conversion of methanol to olefins in a tubular reactor with light olefin co-feeding
The operating performance of a tubular reactor system designed for the exothermic conversion of methanol to light olefins is improved by cofeeding small quantities of light olefins with the...
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4579999 |
Multistage process for converting oxygenates to liquid hydrocarbons with aliphatic recycle
A process for converting oxygenated feedstock, such as methanol, dimethyl ether or the like, to liquid hydrocarbons. In the primary catalyst stage the feedstock is contacted with zeolite catalyst...
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4570026 |
Production of isobutene from methyl tertiary butyl ether
MTBE can be dissociated with high selectivity to isobutene and methanol over acid action exchange resin catalysts using very high LHSV, e.g. of 7 to 35 at pressure drops of 0.5 to 50 psig through...
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4544792 |
Upgrading Fischer-Tropsch olefins
A process for converting olefinic feedstock, such as synthol olefinic liquid product of Fischer-Tropsch synthesis, to distillate hydrocarbons comprising the steps of contacting the feedstock at...
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4520216 |
Process for the preparation of synthetic hydrocarbons
Synthetic hydrocarbons, especially high octane gasoline, are prepared by catalytic conversion in two steps of a synthetic gas containing hydrogen and carbon oxides. In the first step the synthesis...
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4409421 |
Process for the preparation of pure tert.-olefins
Pure tert.-olefins are prepared from mixtures of hydrocarbons, which contain at least one such tert.-olefin, by reaction with an alkanol to give the corresponding alkyl tert.-alkyl ethers, and...
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4052478 |
Method for preparation of alkyl-substituted butadienes
A method for forming monoolefinic alcohols and optionally alkyl-substituted conjugated dienes. A lower alcohol is oxidized to the aldehyde, and the aldehyde separated from the product mixture by...
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4045419 |
Chemical process for producing isoprene by pyrolysis of allylic esters
Process for preparing unsaturated esters by reacting an olefin having an allylic hydrogen atom with an ester forming material in the presence of oxygen and a catalyst selected from the group...
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3972955 |
Process for preparation of isoprene
In the preparation of isoprene by reacting isobutene with formaldehyde to produce 4,4-dimethyl-m-dioxane in a first stage, and decomposing the dioxane to isoprene and formaldehyde in a second...
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3860669 |
2,4-DIMETHYL-3 METHYLENE-1,4-PENTADIENE AND POLYMER
2,4-Dimethyl-3-methylene-1,4-pentadiene has "cross-conjugation" and homopolymerizes thermally to an elastomeric material.
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3856882 |
PROCESS FOR PRODUCING 2,5-DIMETHYL 2,4-HEXADIENE
Process for producing 2,5-dimethyl-2,4-hexadiene by reacting isobutylene, tertiary butanol or a mixture thereof with isobutyl aldehyde in liquid phase under pressure at 110°-200°C in the presence...
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