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Matches 601 - 650 out of 2,391

Document Document Title
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/1996/040842A1
Provided is a process for aromatizing a wide boiling range naphtha feed in order to produce a C8 stream with its C8 aromatics rich in xylene, e.g., preferably containing at least 80 wt.% xylene. The process comprises aromatizing the naph...  
WO/1996/040840A1
A cyclone (500) suitable for use in a third stage separator in a fluid catalytic cracking unit or to improve other gas/solid separations. The cyclone has an inlet for gas and entrained solids (515) and a clean gas outlet tube (520) at on...  
WO/1996/037298A1
A high temperature treatment process is disclosed for increasing conversion and reducing the fouling rate of reforming catalysts. The process comprises reducing the catalyst in a reducing gas atmosphere at a temperature below 1025 �F a...  
WO/1996/037299A1
Provied is a process for regenerating a high temperature treated reforming catalyst which has been deactivated due to coke deposition and which catalyst comprises at least one Group VIII metal. The process comprises first burning coke fr...  
WO/1996/034072A1
Disclosed is a process for converting olefinic hydrocarbons using spent FCC catalysts which comprises using spent FCC catalysts, optionally containing spent FCC additives, in the reactor/stripper part of the FCCU, instead of or in additi...  
WO/1996/030463A1
Low sulfur gasoline of relatively high octane number is produced from a thermally cracked sulfur-containing naphtha such as coker naphtha, by hydrodesulfurization followed by treatment over an acidic catalyst, preferably a zeolite such a...  
WO/1996/024652A1
A process of producing high octane alcohols includes the steps of preparing a mixture of substantially ethanol and butane or natural gasoline, the mixture having a certain temperature and a certain pressure, adjusting the certain pressur...  
WO/1996/024568A1
A heavy aromatics feed is converted to lighter aromatics products, such as benzene, toluene and xylenes by contacting a C9+ aromatics fraction and benzene and/or toluene over a catalyst comprising a zeolite, such as ZSM-12, and hydrogena...  
WO/1996/018705A1
Process for isomerisation of a hydrocarbonaceous feedstock substantially boiling in the gasoline range which feedstock comprises linear paraffins having at least five carbon atoms wherein the feedstock is contacted in the presence of hyd...  
WO/1996/018704A1
A process for treating a light cracked naphtha to be used as an etherification feed stock is disclosed in which mercaptans, hydrogen sulfide and diolefins are removed simultaneously in a distillation column reactor (10) using a reduced n...  
WO/1996/017040A1
An integrated process for increasing C6 to C8 aromatics content in reformate prepared from C9+ aromatics-containing feed comprises: 1) pretreating a raw naphtha feedstream containing C9+ aromatics and sulfur by contacting with a) a hydro...  
WO/1996/017039A1
An integrated process for providing a gasoline boiling range reformate-containing product produced from naphtha comprises: (1) pretreating a raw naphtha feedstream containing benzene by contacting with a hydrodesulfurization catalyst the...  
WO/1996/016004A2
There is provided a process for converting hydrocarbons which utilizes a zeolite bound zeolite catalyst that has enhanced performance when utilized in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportiona...  
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/1996/010066A1
This is a process for upgrading a petroleum naphtha fraction. The naphtha (10) is subjected to reforming (16a, 16b, 16c) and the reformate is cascaded to a benzene and toluene synthesis zone (18) over a synthesis catalyst comprising a mo...  
WO/1996/007712A1
The invention relates to a process for producing high-octane petrol by the catalytic reforming of hydrocarbons by taking said hydrocarbons through a platinum-rhenium catalyst in the shape of a hollow cylinder at 450-500 �C and a pressu...  
WO/1996/007713A1
A process for catalytically desulfurizing cracked fractions in the gasoline boiling range to acceptable sulfur levels uses an initial hydrotreating step to desulfurize the feed with some reduction in octane number, after which the desulf...  
WO/1996/007714A1
Low sulfur gasoline of relatively high octane number is produced from a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising an intermediate pore size zeolite such ...  
WO/1996/005155A1
In the proposed process for obtaining high-octane gasoline components, the starting mixture consisting of isobutane and olefins, preferably butylenes, in a molar ratio of between 1 and 40, is brought into contact with a heterogeneous aci...  
WO/1996/005269A1
A process for reducing the amount of down time or yield loss associated with a sulfur upset when using a sulfur-sensitive catalyst. The process comprises applying a metallic coat, cladding, plating or paint to a reactor system which comp...  
WO/1996/005270A1
This invention relates to use of MCM-49 in catalytic cracking. Large amounts of light olefins are produced.  
WO/1996/004353A1
A fluidized catalytic cracking (FCC) process and apparatus uses a catalyst stripper with slant trays (140) or shed trays having "downcomers" (145). Downcomers (145), vertical catalyst/gas contacting elements, provide a vertical, counterc...  
WO/1996/003360A1
A process for a shape selective hydrocarbon conversion such as toluene disproportionation, involves contacting a reaction stream under conversion conditions with a catalytic molecular sieve which has been preselectivated by agglomerating...  
WO/1996/003209A1
An intermediate pore size molecular sieve supported catalyst includes a platinum group component and a gallium, zinc, indium, iron, tin or boron component. It is used for reforming and aromatization during which it produces a para-xylene...  
WO/1996/001238A1
A process and catalyst are provided for dehydrogenating a hydrocaron feedstock and producing an olefinic product. The process comprises contacting the feedstock at dehydrogenation conditions with a dehydrogenation catalyst comprising fro...  
WO/1996/000764A1
A device for one or more combined units including at least one highly endothermic catalytic unit in which a major part of the heat energy is generated in the radiation area of at least one furnace (F10) and where extra heat is added by r...  
WO/1996/000269A1
Provided is a process for catalytically reforming a hydrocarbon feedstock using a highly sulfur sensivite catalyst. The process comprises contacting the hydrocarbon in a reaction zone, with the hydrocarbon feed and catalyst flowing in op...  
WO/1996/000270A1
Provided is a process for catalytic reforming a hydrocarbon feedstock containing at least 20 ppbw sulfur. The process comprises passing the hydrocarbon feedstock through at least two serially connected reforming zones, with each zone con...  
WO/1995/032801A1
This invention relates to a process for improving the effectiveness of a refinery process catalyst. The process comprises treating the refinery process catalyst with an effective amount of reducing agent selected from the group consistin...  
WO/1995/032933A1
A process is disclosed for upgrading reformate and/or light FCC gasoline by substantially reducing the amount of benzene in the gasoline product while simultaneously reducing the gasoline ASTM distillation End Point. The process comprise...  
WO/1995/031280A1
Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals, which catalysts in addition contain a nanocrystalline phase of alumina of a crystallite size at...  
WO/1995/029970A1
This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed (10) to fill substantially the entire volume of the reactor (11) by introducing the...  
WO/1995/027019A1
A process and apparatus for catalytically converting hydrocarbons to light olefins with a short contact circulating fluidized bed reactor system. The process comprises the steps of feeding a hydrocarbon feedstock into a reaction zone (1)...  
WO/1995/022507A1
The present invention relates to new crystalline zeolite SSZ-42 prepared by processes for preparing crystalline molecular sieves, particularly large pore zeolites, using an organic templating agent selected from the group consisting of N...  
WO/1995/021021A1
This invention relates to the catalyst composition resulting from the addition of phosphorus, and optionally, a matrix material, to a porous crystalline material having the structure of MCM-22. The addition of phosphorus to the MCM-22 is...  
WO/1995/016009A1
A low-pressure, high-temperature, wet post-treatment after oxyhalogenation during regeneration to improve activity and selectivity recovery of a regenerated catalyst involves exposing a halogenated catalyst to a gaseous stream including ...  
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/1995/010580A1
Low sulfur gasoline of relatively high octane number is produced from a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising zeolite beta with a metal hydrogenation...  
WO/1995/006017A1
An isoparafin-olefin alkylation process comprising the sequential steps of (a) alkylating a mixed isoparaffin-olefin feed (10) in the presence of an alkylation catalyst (12) comprising HF and sulfolane in a riser reactor (20), whereby ac...  
WO/1995/006016A1
An isoparaffin-olefin alkylation process comprising (a) alkylating an isoparaffin-olefin feed stream (10) in the presence of an alkylation acid catalyst (12) containing HF and sulfolane in a riser reactor (20) where acid soluble oligomer...  
WO/1995/005433A1
A process for upgrading reformate feedstock to reduce benzene content and increase octane fuel rating is disclosed in which a reformate feedstock is introduced at a bottom portion of a reaction zone at a weight hourly space velocity (WHS...  
WO/1995/001834A1
A reactor arrangement and process for indirectly contacting a reactant stream (A) with a heat exchange stream (B) uses an arrangement of corrugated heat exchange plates (10) to control temperature conditions by varying the number and/or ...  
WO/1994/025539A1
A synthetic layered material, MCM-56, has a composition comprising the molar relationship X2O3:(n)YO2, wherein n is less than about 35, X is a trivalent element, and Y is a tetravalent element, and is further characterized by a sorption ...  
WO/1994/020437A1
A benzene-rich gasoline stream is alkylated with higher olefins in contact with a fluid bed of shape selective zeolite catalyst to produce a gasoline product stream reduced in benzene content wherein the high octane value alkylaromatics ...  
WO/1994/016034A1
A method for reforming hydrocarbons comprising coating portions of a reactor system with a material more resistant to carburization, reacting the material with metal sulfides existing in the portions of the reactor system prior to coatin...  
WO/1994/016036A1
Low sulfur gasoline is produced by fractionating in a fractionator (10) a sulfur-containing naphtha into a low boiling fraction in which the majority of the sulfur is present in the form of mercaptans and a higher-boiling fraction in whi...  
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/1994/016035A1
A method for reforming hydrocarbons comprising coating portions of a reactor system with a material more resistant to carburization, reacting the material with metal oxides existing in the portions of the reactor system prior to coating,...  

Matches 601 - 650 out of 2,391