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Matches 701 - 750 out of 2,175

Document Document Title
WO/1997/019021A1
The present invention relates to a microporous crystalline material of zeolitic nature, called ITQ-1A, to the process for its preparation and its use in processes of separation and transformation of organic compounds. In the roasted and ...  
WO/1997/003147A1
A method for converting a polymer or oligomer derived from an ethylenically unsaturated monomer into alkanes or into a hydrocarbon fraction or a lower oligomer fraction by controlled hydrocracking, wherein said polymer or oligomer is exp...  
WO/1997/001522A1
An improved hydrocarbon conversion process, comprising applying a plating, cladding, paint or other coating to at least a portion of a hydrocarbon conversion reactor system which is used to convert hydrocarbons to products in the presenc...  
WO/1997/000925A1
Method for thermally decomposing addition polymers, such as polyolefins, into monomers and monomer fragments. Thermal decomposition occurs by the rapid heating of the addition polymer such that the polymer ceiling temperature is reached ...  
WO/1996/040426A2
In 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; Y is a tetravalent element; and n is greater than about 12, the c...  
WO/1996/033252A2
Methods of using styrene oil, its fractions, and combinations thereof as working fluids, lubricants, fuels and solvents.  
WO/1996/022161A1
The invention proposes a method of oxidative dehydrogenation and cracking of C2-C5 paraffins (homogeneous hydrocarbons or mixtures with liquefied petroleum gas) to form C2-C5 olefins in the presence of an oxygen-containing gas and water ...  
WO/1996/016005A1
A mixture of aromatic hydrocarbons, comprising ethylbenzene and at least one xylene, is isomerized using a two component catalyst system to convert the ethylbenzene to compounds that may be removed from the aromatic hydrocarbon stream an...  
WO/1996/013331A1
A hydrocarbon conversion catalyst comprising an intermediate-pore-size zeolite which has an SiO2 to Al2O3 ratio of at least 20 by mole, contains one or more Group Ib metals and is substantially free of protons. The catalyst permits lower...  
WO/1996/010548A1
A process for producing aromatic hydrocarbon by bringing a low-boiling hydrocarbon feedstock containing olefin and/or paraffin into contact with a zeolite catalyst in a fixed-bed adiabatic reactor provided with a fixed catalyst bed conta...  
WO/1996/007613A1
Swelling clay minerals are made up of elementary three-layer platelets consisting of a central layer of octahedrally oxygen-surrounded metal ions (octohedron layer), which layer is surrounded by two tetrahedrally surrounded, silicon atom...  
WO/1996/007477A1
The invention pertains to a catalyst at least comprising a hydrogenation metal component and a swelling synthetic clay consisting of elemental clay platelets, with the average diameter of the clay platelets not exceeding 1 micron and the...  
WO/1996/002481A1
Phase transfer catalysis (PTC) uses a catalyst comprising a synthetic porous inorganic crystalline material which contains a cation of an onium compound, e.g. cetyltrimethylammonium, within the pores of said material. The crystalline mat...  
WO/1996/000202A1
An improvement in a process for the haloalkylation of a first aromatic compound having at least one free ring position with a haloalkylating reagent and in the presence of a haloalkylation catalyst, said process producing a haloalkylated...  
WO/1995/033016A1
Described is a reactor for the treatment, in particular the cracking, of hydrocarbons, the reactor comprising at least one input chamber (12) with at least one input port (10), an output chamber (16) with at least one output port (14) an...  
WO/1995/025066A1
Crystalline borophosphates having general formula (I) are disclosed, as well as a process for producing the same from solutions, by a sol-gel process and high temperature reactions, and their use, for example as ion exchangers, sorption ...  
WO/1995/022587A1
Tubular reactors or heat exchangers in processing plants for hydrocarbons and other organic compounds at high temperatures in the gaseous phase are to be protected against coke formation. The problem in such plants is that the usual stea...  
WO/1995/018849A1
Methods for cracking hydrocarbons in reactor systems having improved resistances to carburization and coking. The reactor system comprises a steel portion having provided thereon a Group VIB metal protective layer to isolate the steel po...  
WO/1995/018087A1
The present invention relates to a method for using a distillation column to recover the reactants and products from the reaction of a cyclic diolefin and an olefin to produce an alkenyl bridged ring compound. In a second embodiment, a p...  
WO/1995/017362A1
A method is disclosed for reforming organics into shorter-chain unsaturated organic compounds. A molten metal bath is provided which can cause homolytic cleavage of an organic component of an organic-containing feed. The feed is directed...  
WO/1995/017360A1
A method includes producing an unsaturated organic compound from an organic component of an organic-containing feed. A reactor is provided which contains a molten metal bath. The molten metal bath includes a metal, such as a suitable tra...  
WO/1995/012562A1
A process for production of lower olefins, especially propylene, isobutylene and isoamylene, and high octane number gasoline through catalytic conversion which comprises contacting the petroleum hydrocarbon with a solid catalyst for 0.1-...  
WO/1995/007859A1
A zeolite composition CIT-1 is provided, the composition having a mole ratio greater than about 20:1 of a first oxide selected from silicon oxide, germanium oxide, or mixtures thereof to a second oxide comprising boron oxide; which zeoli...  
WO/1995/004796A1
A process for depolymerizing polymers by selective, partial oxidation at supercritical or near supercritical conditions for water and wherein supercritical water or water near supercritical conditions is used as a solvent and reforming a...  
WO/1994/029246A1
The average degree of branching of a branched olefin feedstock is reduced by skeletal isomerization in contact with a molecular sieve.  
WO/1994/027935A1
A process for the recovery of simpler hydrocarbons from complex hydrocarbons (30) such as plastics, oil shale, or tar sands. In the process, the plastic, oil shale, or tar sands (30) are heated in an environment substantially free of oxy...  
WO/1994/015896A2
At least a portion of a hydrodealkylation reactor is treated with a carburization resistant composition, e.g. a film or coating applied to the base construction material; the reactor is operated under low sulfur conditions.  
WO/1994/016032A1
The present invention is a method for depolymerizing or "cracking" polymeric materials. The method of the present invention may be used in the disposal and/or recycling of such materials. Products of the degradation of polymeric material...  
WO/1993/019138A1
A composite fluid catalytic cracking catalyst comprising a non-zeolitic component of at least 45 % A1203 and containing 30 % Y zeolite with unit cell size 24.29 A°, the matrix (non-zeolitic component) of said catalyst having a B.E.T. su...  
WO/1993/018112A1
A process is disclosed for producing olefins, according to which the desired viscosity is set by heating and subjecting the thus treated material to a thermal treatment at a temperature between 700 and 1100 °C.  
WO/1993/013037A1
A contact material composition containing an intimately mixed, mixed oxide of at least one cationic species of a naturally occurring Group IIIB element, at least one cationic species of a Group IIA metal of magnesium, calcium, strontium,...  
WO/1993/013039A1
An olefins process is described which combines cracking of a hydrocarbon feedstock with the coupling of methane using an oxygen-affording gas such that the heat evolved in the exothermic methane coupling reaction is effectively transferr...  
WO/1993/000165A1
A process for oligomerizing an alkene-containing feedstock comprises contacting the feedstock with a catalyst comprising an inorganic, porous, non-layered crystalline phase material exhibiting, after calcination, an X-ray diffraction pat...  
WO/1992/011931A1
In a method for manufacturing one or more chemicals, a chemical reaction is carried out by circulating one or more reagents inside a tube (2-9) located in the radiation zone of an oven (1). At least a part of the tube is vibrated to limi...  
WO/1992/009366A1
A catalyst for use in acid catalyzed chemical conversion processes such as hydrocarbon conversion processes comprises zeolite beta and a dealuminated Y zeolite having an overall silica-to-alumina mole ratio greater than 6.0, preferably L...  
WO/1991/017829A1
A composition of matter comprising both (1) zeolite Beta and a (2) Y zeolite having either a unit cell size below about 24.45 angstroms or a water sorption capacity at 25 �C at p/p�o? of 0.10 of less than 10.00 weight percent. Typica...  
WO/1991/011258A1
A crystalline zeolite SSZ-31 is prepared by various methods using quaternary ammonium ion templates wherein the product zeolite has a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide se...  
WO/1991/008998A1
A feedstock containing one or more C¿9?+ aromatic compounds, and optionally toluene, is converted over a catalyst comprising a zeolite possessing a Constraint Index of 1 to 3 to provide a product which contains substantial amounts of be...  
WO/1991/003444A1
The method provides for heating a hydrocarbon raw material, its pyrolysis at a temperature of 600-800 �C in the presence of intermediate products of hydrogen and oxygen combustion which are produced in the flame torch and are fed along...  
WO/1991/000777A1
A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.  
WO/1990/015118A1
A process and device for the vapour-phase cracking of hydrocarbons in a furnace (10) with rectilinear monopass tubes (12) which are connected to each other at their outlet end by a collector (18). In said collector a limited pre-quenchin...  
WO/1990/011338A1
A process is disclosed for the conversion of C2-C12 paraffinic hydrocarbons to more valuable petrochemical feedstocks including C2-C4 olefins and C6-C8 aromatics in the presence of a composite catalyst comprising a binder and at least on...  
WO/1990/006352A1
This invention generally relates to short residence time decomposition and volatilization of coal (10) to produce liquid co-products while minimizing production of char (20) and gas without utilization of external hydrogen, that is, hydr...  
WO/1990/005125A1
A hydrocarbon feed is pyrolyzed by direct contact between the feed and solid particles, which are passed through a dilute phase transport reactor, in plug flow, with the feed and solids being passed through the pyrolysis zone in either h...  
WO/1990/004567A1
A crystalline zeolite SSZ-31 is prepared using a tricyclodecane quaternary ammonium ion as a template.  
WO/1989/010910A2
A process for the manufacture of alkylbenzenes wherein a feed of fresh and recycle benzene and fresh olefin are reacted in the presence of an alkylation catalyst in an alkylator having at least two reaction stages wherein each stage is a...  
WO1989010910A1
A process for the manufacture of alkylbenzenes wherein a feed of fresh and recycle benzene and fresh olefin are reacted in the presence of an alkylation catalyst in an alkylator having at least two reaction stages wherein each stage is a...  
WO/1988/008832A1
Selective transformation process of n-heptane (or hydrocarbon mixtures containing n-heptane). According to the invention, a catalytic system combining a zeolite which does not contain a hydrogen ating metal and a hydrogenating metal comp...  
WO/1986/007045A1
Process for the synthesis of zeolites of the borosilicate type of the family of pentasils having the formula: (O-1) M2/nO : B2O3 : x SiO2, wherein x varies between 20 and 1000 and M is a compensation cation of valence n and also containi...  
WO/1985/004853A1
Titanium-silicate molecular sieves having use as molecular sieves and as catalyst compositions in hydrocarbon conversion and other processes. The molecular sieves have a unit empirical formula on an anhydrous basis of mR: (TixSiy)O2, whe...  

Matches 701 - 750 out of 2,175