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WO/2001/004077A1 |
The present invention relates to a process for manufacturing alkanes, comprising, as main stage, a reaction resulting from bringing methane into contact with at least one other starting alkane (A) in the presence of a catalyst based on a...
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WO/2001/002324A1 |
The invention provides a high temperature metathesis process for the metathesis of Fischer-Tropsch olefins in the C¿5? to C¿15? range, said metathesis process including the step of subjecting a Fischer-Tropsch olefin feedstock in the C...
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WO/2001/000547A1 |
This invention relates to a process for the disproportion and transalkylation of toluene and C9?+¿ heavy aromatic hydrocarbons, which has no disadvantage such as the low ability for treating the heavy aromatic hydrocarbons, or the wasti...
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WO/2000/071254A1 |
There is provided a process for converting hydrocarbons using a catalyst comprising macrostructures having a three-dimensional network of particles comprised of porous inorganic material. The particles of the macrostructures occupy less ...
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WO/2000/071255A1 |
There is provided a catalyst containing porous macrostructures comprised of: (a) a three-dimensional network of particles of porous inorganic material; and, (b) at least one metal. The particles of the at least one macrostructure occupy ...
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WO/2000/066520A1 |
The present invention provides a process for producing a monoalkylated aromatic compound, particularly ethylbenzene or cumene, in which a polyalkylated aromatic compound is contacted with an alkylatable aromatic compound in the liquid ph...
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WO/2000/043335A1 |
This invention relates to a process for isomerizing paraffins comprising the step of contacting a feed containing paraffins with a catalyst comprising a synthetic porous crystalline material, designated MCM-68, which exhibits a distincti...
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WO/2000/043316A1 |
This invention relates to a new synthetic porous crystalline material, designated MCM-68, a method and novel polycyclic organic cation for its preparation and its use in catalytic conversion of organic compounds. The new crystalline mate...
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WO/2000/043466A1 |
A process for catalytic cracking of a hydrocarbon feedstock feeds to produce an enhanced yield butylenes and isobutane comprises contacting the feedstock with a catalyst composition comprising MCM-68. The MCM-68 may be used as the primar...
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WO/2000/038834A1 |
Disclosed are a catalyst for the disproportionation/transalkylation of various hydrocarbons and methods for preparing the same. The catalyst consists of a carrier and a metal component supported on the carrier. The carrier comprises 10 t...
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WO/2000/039058A1 |
The invention relates to a method for producing novel surfactant alcohols and surfactant alcohol ethers by derivatising olefins with approximately 10 to 20 C-atoms or mixtures of such olefins to produce alkanols and optionally, subsequen...
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WO/2000/037397A1 |
There is provided a process for shape selective xylene disproportionation that involves contacting a feedstream which includes xylene under conversion conditions, with a molecular sieve catalyst that has been surface modified. The xylene...
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WO/2000/037398A1 |
A synthetic porous cystalline material has the structure of ZSM-5 and a composition involving the molar relationship: X¿2?O¿3?:(n)YO¿2?, wherein X is a trivalent element; Y is a tetravalent element; and n is less than 25, and wherein ...
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WO/2000/027781A1 |
The present invention relates to a process for the manufacture of alkanes comprising a cross-metathesis reaction between at least one starting alkane (A) and one organometallic compound (B) fixed to an inorganic support and comprising a ...
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WO/2000/014038A1 |
The invention provides a process for the production of propylene by butene metathesis. The process includes contacting a feedstock, which contains butene selected from the group consisting of 1-butene, 2-butene and mixtures thereof, with...
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WO/2000/007967A2 |
The invention relates to a continuous method and a heat pump device for enriching low-concentrated reaction mixtures resulting from the production of cycloalkandienes by means of catalytic metathesis of cyclic aliphatic alkenes and cyclo...
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WO/2000/006530A1 |
A process for producing terephthalic acid and/or dimethyl terephthalate includes contacting a toluene-containing reaction stream with a first catalyst under toluene disproportionation conditions to produce an intermediate product stream ...
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WO/2000/000430A2 |
The present invention relates to new crystalline, molecular sieve CIT-6 that has the topology of zeolite beta. CIT-6 can be in an all-silica form, in a form wherein zinc is in the crystal framework, or a form containing silicon oxide and...
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WO/1999/058538A1 |
The invention relates to cationic ruthenium complexes of the general formulae (A) or (B) or mixtures containing same, where B can be stabilized by a further ligand L¿4? and X is an anion which is not or weakly coordinated to the metal c...
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WO/1999/052843A1 |
Ethylbenzene (18) is produced from benzene (16) and ethylene (14) in an alkylation reactor (12) wherein the feedstocks also contain propylbenzenes (26) and/or components that produce propylbenzene (26). Polyethylbenzenes (24) are also pr...
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WO/1999/051551A1 |
A gas phase, aromatics transalkylation process that comprises contacting a stream containing aromatic hydrocarbons with a catalyst comprising a zeolite selected from the group consisting of SSZ-26, A1-SSZ-33, CIT-1, SSZ-35, and SSZ-44 in...
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WO/1999/044738A1 |
A method for a solid acid catalyst which contains sulfuric acid, exhibits a satisfactorily high activity even when formed into moldings, and also has a satisfactory mechanical strength and an easiness to handle sufficient to practical op...
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WO/1999/042469A1 |
A composition and method for the catalytic conversion of a racemic mixture of dienes to a cyclic olefin by a ring-closing metathesis (RCM) reaction are disclosed. The composition, a transition metal complex with an M=C reaction site, con...
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WO/1999/029807A1 |
A process for the catalytic cracking of one or more olefins in an olefinic stream containing impurities, the cracking process being selective towards light olefins in the effluent, the process comprising contacting a feedstock olefinic s...
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WO/1999/028330A1 |
The present invention describes the use of cationic vinylidene, allenylidene and higher cumulenylidene complexes of ruthenium or osmium as catalysts or catalyst precursors for olefin metathesis reactions of all types, as well as to new c...
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WO/1999/028032A1 |
The preparation of zeolite bound zeolite comprising zeolite core crystals other than MFI structure zeolite which are bound by MFI structure type zeolite and the use of the zeolite bound by MFI structure type zeolite prepared by the proce...
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WO/1999/026904A2 |
There is provided a process for producing alkylaromatics (160), especially ethylbenzene and cumene, wherein a feedstock (102, 112)is first fed to a transalkylation zone (100) and the entire effluent (120) of the transalkylation zone (100...
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WO/1999/022865A1 |
Activation of ruthenium based catalyst compounds with acid to improve reaction rates and yields of olefin metathesis reactions, including ROMP, RCM, ADMET and cross-methasis reactions is disclosed. The ruthenium catalyst compounds are ru...
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WO/1999/022866A1 |
A ruthenium-containing metathesis catalyst system which contains a ruthenium compound (A), a phosphorus, arsenic, or antimony compound (B), and a compound (C) containing at least one carbon-to-carbon triple bond. The mole ratio of compou...
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WO/1999/019278A1 |
The present invention relates to a process of preparing 2,6-dialkylnaphthalene comprising steps of alkylating monoalkylnaphthalene with an alkylating agent in an alkylation zone and transalkylating naphthalene with dialkylnapthalene othe...
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WO/1999/008961A1 |
The present invention relates to new crystalline zeolite CIT-5 prepared using a N(16) methylsparteinium cation templating agent.
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WO/1999/005081A1 |
A hydrocarbon conversion process comprises: 1) contacting a hydrocarbon feed such as, for example, gasoline in reactor (10), with a catalyst under sufficient conditions to effect the conversion of the hydrocarbon to a product stream comp...
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WO/1999/000189A1 |
The invention relates to a supported catalyst used in the production of cycloalkadienes in a metathesis reaction containing a) $g(g)-Al¿2?O¿3? as supporting material; b) 2-20 wt.% Re¿2?O¿7?; c) 0.5-5 wt.% B¿2?O¿3?; d) 0-20 wt.% SnR...
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WO/1998/056741A1 |
A heavy aromatics feed is converted to lighter aromatics products, such as benzene, by contacting a C�9?+ aromatics fraction and toluene over a first catalyst comprising a zeolite having a constraint index ranging from 0.5 to 3 and a h...
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WO/1998/029336A1 |
The present invention relates to new crystalline zeolite SSZ-48 prepared using a decahydroquinolinium cation templating agent.
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WO/1998/029338A1 |
The present invention relates to new crystalline zeolite SSZ-45 prepared using an N-substituted DABCO cation templating agent.
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WO/1998/028245A1 |
The present invention relates to a method for the production of cyclopentene-oligomer mixtures of formula (I), characterized in that a hydrocarbon mixture containing acyclic monoolefins from an oil refining cracking process (C�5?-cut) ...
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WO/1998/016468A1 |
A process for converting hydrocarbons by contacting a hydrocarbon feedstream under hydrocarbon conversion conditions with a large crystal zeolite catalyst. The large crystal zeolite of the catalyst used in the hydrocarbon conversion proc...
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WO/1998/014417A1 |
A zeolite-based ethylbenzene process which is suitable for retrofitting aluminum chloride-based ethylbenzene plants. The process involves alkylating benzene with ethylene in an alkylation zone in the presence of zeolite beta or Y or an M...
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WO/1998/012159A2 |
This invention is an improved process for the conversion of a C�9? mixed alkyl aromatic feedstream containing ethyl substituted aromatics to a product rich in toluenes and/or xylenes via catalytic transalkylation/disproportionation usi...
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WO/1998/007673A1 |
A process of preparing an alkylated benzene or mixture of alkylated benzenes involving contacting a benzene feedstock with a solid acid, such as an acidic clay or acid zeolite, in a pretreatment zone at a temperature greater than about 1...
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WO/1998/002244A1 |
The method for the metathesis of original linear or branched alkanes consists in reacting this or these original alkane(s) on a catalyst comprising a support formed by a solid oxide on which are grafted and dispersed metal atoms in hydri...
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WO/1997/049654A1 |
The invention relates to a process for selective preparation of 4-substituted or 4,4'-disubstituted alkylated derivatives of biphenyl or a biphenyl derivative. According to said process, biphenyl or a biphenyl derivative are brought into...
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WO/1997/046636A1 |
A shape-selective catalyst comprises a synthetic porous crystalline material having the structure of ZSM-5 and a composition involving the molar relationship: X2O3:(n)YO2, wherein X is a trivalent element, such as aluminum, boron, iron a...
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WO/1997/045387A1 |
A process is provided for the production of paraxylene by the methylation of toluene in the presence of a zeolite bound zeolite catalyst. The catalyst comprises first zeolite crystals which are bound together by second zeolite crystals. ...
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WO/1997/045196A1 |
There are provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprise a first alumino-phospho-molecular sieves and a binder comprising a second alumino-phospho-molecular sieves. Exe...
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WO/1997/045384A1 |
A process is provided for the alkylation, transalkylation, or isomerization of aromatic hydrocarbons. The process comprises contacting aromatic hydrocarbons under conversion conditions with a zeolite bound zeolite catalyst. The zeolite b...
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WO/1997/045386A1 |
A dehydrocyclo-oligomerization process is provided for converting aliphatic hydrocarbons to aromatics by contacting the feedstock under conversion conditions with a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst compr...
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WO/1997/045198A1 |
There is provided a zeolite bound zeolite catalyst which can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises a f...
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WO/1997/040934A1 |
A ruthenium-based metathesis catalyst system which contains a ruthenium compound (A), a phosphorus compound (B), and a compound (C) containing a carbon-to-carbon triple bond. The mole ratio of compounds A:B:C is typically in the range of...
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