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4629717 |
Phosphorus-modified alumina composite, method of manufacture and use thereof
A novel phosphorus-modified alumina composite comprising a hydrogel having a molar ratio on an elemental basis of phosphorus to aluminum of from 1:1 to 1:100 together with a surface area of about...
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4622127 |
Method for the hydrogenation treatment of a heavy hydrocarbon oil
A method for the two-step catalytic hydrogenation treatment of a heavy hydrocarbon oil which comprises first contacting the heavy hydrocarbon oil with a first solid catalyst comprising a metal...
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4622214 |
Method for the preparation of crystalline molecular sieve materials wherein the organic template is an enantiomer
Crystalline molecular sieve materials such as high silica zeolites are manufactured using an organic template comprising an optically active enantiomer such as an enantiomer of 3(±) methyl...
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4622308 |
Catalyst for the production of hydrocarbons from the synthesis gas
An improved catalyst suitable for use in the production of hydrocarbons from the synthesis gas comprises an iron-containing Fischer-Tropsch catalyst, a zeolite and at least one metal selected from...
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4618594 |
Catalyst and process for the hydrodenitrogenation and hydrocracking of high-nitrogen feeds
There is disclosed a catalyst, which catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one metal of Group VIII, a crystalline molecular sieve zeolite, and a...
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4617282 |
Magnetizable adsorbents
Magnetizable adsorbent particles suitable for use in a magnetically stabilized fluidized bed and with a smaller particle size than conventionally formed composite adsorbents are prepared by...
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4617283 |
Catalyst for converting synthesis gas to liquid motor fuels
The addition of an inert metal component, such as gold, silver or copper, to a Fischer-Tropsch catalyst comprising cobalt enables said catalyst to convert synthesis gas to liquid motor fuels at...
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4615997 |
Method for preparing hydroisomerization catalysts
A method for preparing hydroisomerization zeolite catalysts containing a highly dispersed noble metal is described. The method includes mix mulling the zeolite, noble metal and binder into an...
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4614834 |
Dehydrocyclization with nonacidic L zeolite
A novel catalyst composite is disclosed as well as a novel method of preparing the composite and a novel use for the composite. The novel composite comprises a nonacidic zeolite, catalytically...
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4608356 |
Preparation of a reforming catalyst
A method of preparing a reforming catalyst is disclosed wherein a large-pore zeolite is impregnated with an aqueous solution of platinum and the zeolite is only allowed to soak in the solution for...
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4601993 |
Catalyst composition dewaxing of lubricating oils
Hydrocarbon lubricating oil feedstocks are dewaxed by passing the waxy feedstock over a catalyst bed containing a mixture of medium pore zeolite and large pore zeolite catalysts havig a Constraint...
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4601992 |
Product and process for the production of granules of high mechanical strength and containing molecular sieve
Disclosed is a product and process for the production of granules of high mechanical strength comprising mixing a molecular sieve and a metal oxide into a paste with a silicate, shaping the paste...
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4595670 |
Zeolite catalyst
A class of catalysts which exhibit superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected from...
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4595668 |
Bound zeolite catalyst
A class of bound catalysts which exhibit superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected...
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4595669 |
Method of preparing an improved catalyst
A reforming catalyst comprising a type L zeolite containing at least one Group VIII noble metal may be prepared by a method involving contacting the freshly prepared catalyst with oxygen, hydrogen...
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4595702 |
Conversion of synthesis gas to liquid hydrocarbons
This invention provides a process for converting synthesis gas to hydrocarbon fuels in the C 5 -C 24 (gasoline and distillate) range. The conversion proceeds with minimal formation of by-product...
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4591576 |
Process for preparing catalytic cracking catalysts
Catalytic cracking catalysts and catalytic cracking process wherein the cracking catalysts are prepared by: (i) contacting a mixture of a large pore zeolite and an inorganic oxide matrix at...
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4588701 |
Catalytic cracking catalysts
Catalytic cracking catalysts and catalytic cracking process wherein the cracking catalysts are prepared by: (1) contacting a mixture of a large pore zeolite and an inorganic oxide matrix at...
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4585748 |
Crystalline catalyst compositions for the conversion of hydrocarbons
A hydrocarbon conversion crystalline catalyst composition is described comprising 5 to 90% by weight of a crystalline aluminosilicate zeolite, 5 to 90% by weight of a porous inorganic oxide, 1 to...
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4584287 |
Rare earth-containing Y zeolite compositions
Y Zeolites are prepared with rare earth cations and Group VIII metal cations exchanged thereinto, such zeolites being especially useful in hydrocracking catalysts. The zeolites of the invention are...
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4579830 |
Enhanced catalyst for converting synthesis gas to liquid motor fuels
The conversion of synthesis gas to liquid molar fuels by means of a cobalt Fischer-Tropsch catalyst composition is enhanced by the addition of molybdenum, tungsten or a combination thereof as an...
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4579831 |
Method of zeolitic catalyst manufacture
A method of forming a sulfur-resistant catalyst is disclosed wherein a zeolite is bound with an alumina containing either an alkali or alkaline earth component. In one embodiment of this method, a...
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4578372 |
Preparation of zeolite coated substrates
There is disclosed a process for preparing magnetizable particles comprising Zeolite Y wherein magnetizable particles are introduced into a vessel containing the reaction mixture used to form...
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4576711 |
Hydrocracking process and catalyst therefor
A hydrocracking process, of especial use in the production of a relatively high yield of middle distillate products along with a smaller but still significant yield of gasoline from high boiling...
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4568656 |
Process for loading platinum into Zeolite-L
A process is provided for loading and uniformly distributing platinum onto a Zeolite-L. The Zeolite-L is contacted with an aqueous solution containing a platinum salt and a non-platinum metal salt,...
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4568655 |
Catalyst composition comprising Zeolite Beta
A single catalyst system capable of demetalizing, hydrotreating and hydrodewaxing petroleum residue in a single stage process is described. The catalyst system utilized includes one or more metal...
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4565793 |
Composite zeolitic magnetic material
A fluidized bed process is disclosed which comprises subjecting a bed comprised of solid particulate magnetizable, fluidizable material within an external force field wherein at least a portion of...
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4564511 |
Synthesis of molecular sieving metallosilicates using heteropolymetallates
A method for preparing a molecular sieving metallosilicate is disclosed which comprises (A) providing a mixture comprising: water; an oxide of silicon source; a mineralizing agent and/or...
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4556645 |
Enhanced catalyst for conversion of syngas to liquid motor fuels
Synthesis gas comprising carbon monoxide and hydrogen is converted to C 5 + hydrocarbons suitable for use as liquid motor fuels by contact with a dual catalyst system capable of enhancing the...
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4556646 |
Manufacture of noble metal/zeolite catalysts
A simplified method of manufacture of noble metal/zeolite catalysts involves impregnation of the formed catalyst base with a solution of the noble metal and an ammonium salt. Catalysts having a...
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4554263 |
Catalysts for hydrotreating heavy oils
A catalyst, prepared by supporting a catalytic effective amount of hydrogenation metal on a catalyst carrier material comprising zeolite and an amorphous inorganic oxide and further incorporating...
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4554396 |
Olefin upgrading with ferrosilicate zeolite catalyst
A process for upgrading lower olefin to produce heavier hydrocarbons having a substantially linear molecular conformation comprising contacting olefinic feedstock under oligomerization conditions...
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4554262 |
Chiral hydrogenating catalysts
A stereo-differentiating catalyst containing Group VIII metal is prepared by contacting a Group VIII metal-containing acidic zeolite with an optically active amine. Methods are disclosed for...
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4552856 |
Zeolite catalyst and preparation thereof
A catalyst which exhibits superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected from Group IA...
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4551438 |
Oligomerization of liquid olefin over a nickel-containing silicaceous crystalline molecular sieve and hydrocarbyl aluminum halide
A process for oligomerizing olefins in the liquid phase using a catalyst composition comprising a nickel-containing silicaceous crystalline molecular sieve catalyst and an hydrocarbyl-aluminum halide.
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4547472 |
Method of adding an alkaline earth metal to a zeolitic catalyst
A method is disclosed for adding barium to a large-pore zeolite. The large-pore zeolite is ion exchanged with a barium nitrate solution at a pH of from 8 to 11; the ion exchanged large-pore zeolite...
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4544645 |
Promoter for the oxidation of SO.sub.2 in an FCC process
In a process for cracking a sulfur-containing hydrocarbon an improved oxidation promoter for converting SO 2 to SO 3 comprising an intimate association of palladium and at least one other metal...
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4544539 |
Zeolite L with cylindrical morphology
A zeolite related to zeolite L and having a characteristic cylindrical morphology may be prepared from a crystallization gel comprising (in mole ratios of oxides): K 2 O/SiO 2 : 0.22-0.36 H...
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4541919 |
Shape selective dewaxing using coke modified large pore zeolites
A large pore zeolite is selectively coked to restrict the zeolite's pore size. The coked zeolite is used for shape selective dewaxing.
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4542117 |
Catalyst composition, method for its production
A catalyst composition for use in the production of hydrocarbons from synthesis gas comprises the essential metals (a) at least one of iron, cobalt, nickel and ruthenium, and (b) at least one...
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4539305 |
Pretreatment method for enhancing the selectivity and increasing the stability of a reforming catalyst
A pretreatment method is disclosed for enhancing the selectivity and increasing the stability of a reforming catalyst comprising a large-pore zeolite containing at least one Group VIII metal. In...
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4539304 |
Pretreatment method for increasing conversion of reforming catalyst
A pretreatment process is disclosed for increasing conversion of reforming catalysts wherein the catalyst is treated at from 120° C. to 260° C.; then the temperature of the treated catalyst is...
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4526878 |
Method for supporting metal and/or metal oxide on a crystalline aluminosilicate zeolite catalyst
The present invention relates to a new method for supporting a metal and/or a metal oxide on a crystalline aluminosilicate zeolite. The resulting products are useful as catalysts and are designated...
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RE31919 |
Aromatics processing catalysts
A method of preparing aromatics processing catalysts which comprises incorporating a noble metal with a member or members of a useful class of zeolites, with such incorporation occurring after...
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4517306 |
Composition and a method for its use in dehydrocyclization of alkanes
A new catalyst is disclosed which is useful for dehydrocyclizing alkanes. This catalyst contains a type L zeolite, a Group VIII metal, and an alkaline earth metal. This catalyst has been reduced in...
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4513090 |
Crystalline silica zeolite-containing catalyst
A catalyst is provided which comprises a crystalline silica zeolite, a hydrogenation component and a support. The catalyst may be a physical mixture of the zeolite and the supported hydrogenation...
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4508837 |
Zeolite SSZ-16
A crystalline zeolite, SSZ-16, is prepared from organic nitrogen-containing species derived from 1,4-di(1-azoniabicyclo[2.2.2]octane) lower alkane compounds.
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4504589 |
Hydrodenitrification catalyst and a method for improving the activity of the catalyst
Hydroconversion catalysts containing Group VIII and/or Group VIB catalytically active metals on a support, and particularly those containing nickel and molybdenum on alumina, are improved in...
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4500645 |
Hydrocracking catalyst composition and method of making same
A hydrocracking catalyst composition comprising metals of Group VIb and Group VIII deposited on a carrier material consisting of Y-zeolite and one or more members of the group consisting of...
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4495305 |
Catalyst for conversion of hydrocarbons
An improved process for converting hydrocarbons using a catalyst which is periodically regenerated to remove carbonaceous deposits, the catalyst being comprised of a mixture containing, as a major...
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