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7476773 Process for preparing a gas oil by oligomerization  
A process for preparing a gas oil cut comprises the following steps in succession: 1) oligomerizing an olefinic C2-C12 hydrocarbon cut, preferably C 3 -C 7 and more preferably C 3 -C 5 ; 2)...
7176340 Continuous process for the alkylation of hydrocarbons  
A continuous alkylation process performed in an apparatus comprising a series of at least two zone A reactors and a series of at least two zone B reactors, in which the zone A reactors and the zone...
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,...
6846965 Method for the oligomerization of C2 C8-olefins  
C 2 -C 8 -olefins are oligomerized in a process in which a stream of an olefin-containing hydrocarbon mixture is passed over a heterogeneous, nickel-containing oligomerization catalyst in n...
6635778 Catalysts systems for the polymerization and copolymerization of alpha-olefins  
Catalyst component for the polymerization of alpha-olefins of general formula (I) wherein: M is a transition metal of groups 3, 4-10 of the periodic table of the elements, Each X group can be...
6528693 Preparation of cyclopropylethyne and intermediates for preparation of cyclopropylethyne  
1-chloropropylethyne is prepared by dehydrochlorination with a base of 1-chloro-1-cyclopropylethene, which is itself prepared by treating 1-cyclopropylethanone with dichlorotriarylphosphorane or...
6503465 Two-stage isomerization of saturated C6 hydrocarbons  
A process and/or system is provided for isomerizing a hydrocarbon feedstock comprising saturated C 6 hydrocarbons by contacting the hydrocarbon feedstock, in the presence of hydrogen and...
6339179 Production of alkyl aromatics by passing transalkylation effluent to alkylation zone and to product recovery zone  
A process for producing alkyl aromatics using a transalkylation reaction zone and an alkylation reaction zone is disclosed. One portion of the transalkylation reaction zone effluent passes to an...
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...
6303839 Process for producing polymer grade olefins  
The present invention relates to a process for the production of light olefins comprising olefins having from 2 to 4 carbon atoms per molecule from an oxygenate feedstock. The process comprises...
6194625 Alkylation by controlling olefin ratios  
Disclosed are various embodiments for alkylating olefins and isoparaffins in the presence of an acid to reduce and/or control acid consumption or maximize and/or control the octane number of the...
6166279 Preparation of olefins  
The preparation of olefins from steam cracker or refinery C 4 streams is carried out by selective hydrogenation of butadienes and acetylenic impurities in the steam cracker or refinery C 4 ...
5849965 Multistage alkylation process  
In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a...
5847253 Alkylation-transalkylation process using stripping to produce a dry transalkylation feed  
A process for the production of alkylaromatic hydrocarbons that operates with a high water content in an alkylation zone and a low water content in a transalkylation zone is disclosed. An aromatic...
5750821 Method for oxidative coupling of methane comprising catalytic cracking  
The following steps are conducted for producing a hydrocarbon having a carbon number of at least 2: a coupling step, in which a coupling feed gas containing methane and a gas containing oxygen are...
5744669 Process for the conversion of a halogenated organic stream containing trace quantities of organic nitrates  
A process for the conversion of a halogenated organic stream containing trace quantities of organic nitrates to produce a stream comprising hydrogenated hydrocarbonaceous compounds free from...
5498815 Preparation of synthetic oils from vinylidene olefins and alpha-olefins  
A synthetic oil is made by a process comprising the steps of (a) reacting a vinylidene olefin in the presence of a catalyst to form an intermediate mixture which contains at least about 50 weight...
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...
5475175 Process for the production of alkylate gasoline from FCC light aliphatics  
This invention provides a process for upgrading hydrocarbon feedstock comprising the steps of: (i) recovering a C 4 -rich aliphatic stream from a catalytic cracking process; (ii contacting...
5447622 Integrated catalytic cracking and olefin producing process using staged backflow regeneration  
Disclosed is a method which combines catalytic cracking and olefin production using a coked catalytic cracking catalyst as a dehydrogenation catalyst to dehydrogenate an alkane feed stream and form...
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 is...
5365006 Process and apparatus for dehydrogenating alkanes  
An alkane-containing feedstream is passed through one or more tubes, which may contain alkane-dehydrogenation catalyst, immersed in a bed of fluidized particles. The bed is at an elevated...
5283385 Upgrading of normal pentane to cyclopentane  
This invention is a process of converting n-pentane to cyclopentane. In accordance with a preferred embodiment of the invention, n-pentane feed is converted in dual temperature stage process...
RE34189 Conversion of paraffins to gasoline  
An improved two-step process for the conversion of lower molecular weight paraffins, the process comprising contacting in a first step a C 2 -C 10 alkane-rich feedstock with a siliceous zeolite...
5188725 Fluidized catalyst process for production and etherification of olefins  
An improvement in iso-olefin etherification is obtained in an integrated process combining a fluidized catalytic cracking reaction and a fluidized catalyst etherification reaction wherein zeolite...
5177279 Integrated process for converting methanol to gasoline and distillates  
An integrated process for the conversion of methanol feed to gasoline and distillate range liquid hydrocarbons comprising the steps of splitting the methanol feed into two portions, contacting the...
5045287 Multireactor system for conversion of methanol to gasoline and distillate  
A reactor system for increased production of olefinic gasoline incorporating the integration of olefins to gasoline conversion under moderate severity conditions in contact with medium pore...
4990711 Synthetic polyolefin lubricant blends having high viscosity indices  
Compositions and methods of preparation for a lubricant mixture having enhanced viscosity index comprising: (a) a low viscosity C 20 -C 60 lubricant range liquid comprising substantially...
4925996 Two stage process for catalytic conversion of olefins to higher hydrocarbons  
A process is disclosed for converting a feedstock containing ethylene to produce heavier hydrocarbons in the gasoline or distillate boiling range including the steps of contacting the olefins...
4922048 Medium-pore zeolite olefinic naphtha by-product upgrading  
A process is provided for upgrading the olefinic gasoline by-product of low-severity medium-pore zeolite catalyzed hydrocarbon conversion processes including catalytic dewaxing and olefin...
4898717 Multistage process for converting oxygenates to distillate hydrocarbons with interstage ethene recovery  
An integrated process is provided for converting methanol, dimethylether or the like to heavy hydrocarbon products, especially distillate range hydrocarbons. In a first stage catalytic process...
4899002 Integrated staged conversion of methanol to gasoline and distillate  
A process for the increased production of olefinic gasoline is described incorporating the integration of olefins to gasoline conversion under moderate severity conditions in contact with zeolite...
4891457 Multistage process for converting olefins to heavier hydrocarbons  
A staged reactor technique for converting ethene-rich olefinic feedstock to heavier hydrocarbons, particularly gasoline and distillate range products. By employing low temperature and high...
4835335 Process for two-stage catalytic conversion of an olefins-containing feed  
A two-stage catalytic conversion process for converting an olefins-containing feed is disclosed which comprises contacting the feed in a first stage under substantially non-oligomerizing conditions...
4788366 Production of heavier hydrocarbons from light olefins in multistage catalytic reactors  
A multi-stage catalytic olefin upgrading technique for converting lower olefinic feedstock to heavier liquid hydrocarbon product. The invention provides a fluid bed continuous primary stage...
4788365 High octane gasoline and distillates from oxygenates  
An integrated process for the conversion of methanol to high octane gasoline and distillate. Methanol is converted to olefins in the presence of zeolite type catalyst. C 4 and C 5 olefin fraction...
4774376 Production of liquid products from aliphatic hydrocarbons  
This invention relates to a process for producing liquid products e.g. gasoline blending components by conversion of a mixed paraffin/olefin gaseous feedstock over two types of catalysts. In a...
4767604 Integrated reactor system for converting oxygenates to alkylated liquid hydrocarbons  
Alkylate is produced by catalytically converting oxygenate feedstock, such as methanol, to lower olefins comprising C 2 -C 4 olefins. Ethene is separated by interstage sorption of C 3 +...
4689205 Multi-stage system for converting oxygenates to liquid hydrocarbons with aliphatic recycle  
An apparatus 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 a fluidized...
4686312 Aromatics production  
Disclosed is a multistage process for converting lower aliphatic oxygeanated hydrocarbon feedstock to hydrocarbon product rich in benzene, toluene and/or xylene which comprises: contacting said...
4582949 Process for the preparation of an aromatic hydrocarbon mixture  
This invention relates to a two-stage conversion of olefins into aromatic hydrocarbon mixtures by contacting them in the first stage with a crystalline metal silicate and in the second stage with a...
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...
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...
4520225 Process for the pretreatment of light olefin fractions  
The invention relates to a process for the pretreatment of a light olefin fraction, or of a mixture of such fractions, for the purpose of selectively removing the isobutene and butadiene present....
4503282 Process to convert linear alkenes selectively using high concentrations of AMS-1B crystalline borosilicate catalyst  
A process to convert a substantially linear alkene, such as n-butene, to isomerized products comprises contacting such alkene under conversion conditions comprising a temperature of above 300° C....
4499326 Selective low-temperature isomerization of normal butenes using AMS-1B crystalline borosilicate molecular sieve  
A process to convert a normal butene to isomerized products comprises contacting such alkene under conversion conditions with a hydrogen form AMS-1B borosilicate catalyst composition at a...
4499325 Alkene conversion using AMS-1B crystalline borosilicate  
A process to convert an alkene to oligomerized, aromatized and isomerized products comprises contacting such alkene under conversion conditions with an AMS-1B borosilicate catalyst composition.
4483760 Process for dewaxing middle distillates  
A process is provided for catalytically dewaxing a middle distillate with a ZSM-5 type catalyst. In this process the olefinic by-product is separated and catalytically converted to additional fuel...
4479023 Process for the oligomerization of light olefin fractions in the presence of a boron trifluoride catalyst  
A process for the oligomerization of olefin fractions where boron trifluoride in the gas phase is contacted with such a fraction, in the absence of a catalyst carrier, under such conditions and for...
4469912 Process for converting α-olefin dimers to higher more useful oligomers  
A process is provided whereby the dimer fraction obtained from a boron trifluoride catalyzed oligomerization process is reacted with an α-olefin in the presence of a phosphoric acid-modified boron...
Matches 1 - 50 out of 85 1 2 >