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5292991 |
Process for removal of hydrocarbons carbon manoxide, and oxides of nitrogen from oxygen-containing waste gas using molecular sieve-palladium-platinum catalyst on a substrate
A process of using a catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination...
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5292696 |
Hydrocarbon adsorbing body
A hydrocarbon adsorbing body for use in the purification of exhaust gas comprises a monolith type carrier, a coating layer of Pd ion-exchanged H-type ZSM-5 zeolite powder, and a coating layer of...
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5279998 |
Zeolitic catalyst
The exterior of a platinum-zeolite L catalyst is treated with metallic tin particles having an average particle size of between 1 and 5 microns so that at least 95% of the platinum present in the...
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5278113 |
Catalytic body and process for producing the same
A catalytic body contains a base material and, formed on the surface thereof, a catalytic coating layer containing activated alumina, zeolite, a platinum group metal and an inorganic binder. By...
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5273945 |
Zeolite catalyst of hexagonal structure and its application
A catalyst is provided which contains 1 to 99 wt. % of a zeolite related to faujasite and having a hexagonally symmetrical structure and an Si:Al ratio between 3 and 30. The compensation cations of...
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5266543 |
Catalytic composite for deodorizing odorous gases and a method for preparing the same
A catalytic composite for deodorizing odorous gases is provided. The composite comprises: ceramic fibers; zeolite supported on the surface of and in the interstices between the ceramic fibers; and...
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5254514 |
Zeolite SSZ-37
A crystalline zeolite SSZ-37 is prepared using a N,N-dimethyl-4-azoniatricyclo [5.2.2.0 (2,6) ] undec-8-ene cation as a template wherein said zeolite is used in hydrocarbon conversion processes.
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5252527 |
Zeolite SSZ-32
A crystalline zeolite SSZ-32 of novel composition is prepared using an N-lower alkyl-N'-isopropyl-imidazolium cation as a template. Also disclosed is a process for converting hydrocarbons with...
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5244852 |
Molecular sieve-palladium-platinum catalyst on a substrate
A catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves...
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5236880 |
Catalyst for cracking of paraffinic feedstocks
A zeolite catalyst with improved hydrocarbon conversion comprising a crystalline aluminosilicate having a SiO 2 /Al 2 O 3 ratio greater than 5 and preferably a MFI or MEL zeolite. The zeolite...
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5236879 |
Catalyst for purifying exhaust gas
A catalyst for purifying an exhaust gas comprising: a crystalline aluminosilicate containing a rare earth or alkaline earth metal produced by allowing a rare earth or alkaline earth metal salt to...
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5236878 |
Zeolite-containing adsorptive composition and adsorptive decomposition composition containing such zeolite-containing composition
An adsorbent comprising a sepiolite and a zeolite, especially silicalite and a zeolite-containing adsorptive decomposition composition comprising the adsorbent and a catalyst component supported...
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5227353 |
Hydroprocessing catalyst composition
Hydroprocessing catalysts of high metal content and surface area are based on a support material comprising a non-layered, ultra-large pore crystalline material. The crystalline material exhibits...
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5223236 |
Method for exhaust gas cleaning
A method for cleaning an exhaust gas, entailing bringing the exhaust gas into contact with a crystalline aluminosilicate having a primary particle size of not less than 0.5 micron, containing one...
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5219814 |
Catalyst for light cycle oil upgrading
A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock is processed to high octane gasoline and low sulfur distillate by hydrocracking over a...
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5215736 |
Mordenite type zeolite and its preparation process
The object of the invention is a synthetic crystalline zeolite of the mordenite type characterized by: a) the following approximate general formula: Na 2 O, Al 2 O 3 , xSiO 2 where x is...
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5215950 |
Catalyst containing a zeolite, a noble metal from the family of platinum, an alkali metal of an alkaline earth metal and an additional metal, as well as the use thereof in the aromatization of hydrocarbons containing 2 to 4 carbon atoms per molecule
The invention relates to a catalyst and a catalytic process for the aromatization of hydrocarbons containing 2 to 4 carbon atoms per molecule. The catalyst contains a MFI zeolite and an amorphous...
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5207893 |
Hydrocracking process employing a novel iron-containing aluminosilicate
A process for hydrocracking heavy oil which comprises hydrocracking the heavy oil in the presence of a catalyst comprising a support of 10 to 90% by weight of an iron-containing aluminosilicate and...
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5192728 |
Tin-colating microporous crystalline materials and their use as dehydrogenation, dehydrocyclization reforming catalysts
Group VIII metal modified non-acidic tin containing microporous crystalline materials which in catalysis exhibit high selectivity for dehydrogenation and dehydrocyclization are described.
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5187133 |
Catalyst composition for hydrotreating of hydrocarbons and hydrotreating process using the same
A catalyst composition for the hydrotreatment of hydrocarbon oils is disclosed. The composition comprises at least one metal compound having hydrogenating activity belonging to a Group VIB or Group...
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5185306 |
Prevention of noble metal migration in bound zeolites during thermal oxidation
Metal migration from molecular sieve particles to binder particles in agglomerates of molecular sieves bearing group VIII zerovalent metal occurs readily at temperatures above 350° C. Such...
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5182242 |
Catalysts bound with low acidity refractory oxide
Low acidity refractory oxide-bound molecular sieve, e.g., zeolite, compositions, for example, zirconia-bound zeolite Beta, possessing superior physical properties, e.g., crush strength, and the...
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5182012 |
Crystalline silicate catalyst and processes using the catalyst
The preferred reforming and/or benzene production catalyst is an intermediate pore size zeolite which has a high degree of crystallinity and a small crystallite size. The reforming or benzene...
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5179053 |
Treating exchaust from a compressed natural gas-fueled engine
A catalyst system that converts the exhaust gas of a compressed natural gas (CNG) fueled automotive engine when operated at stoichiometry or slightly lean thereof, at highly enhanced rates, and...
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5177041 |
Catalyst for purifying exhaust gas from diesel engines
A catalyst for purifying exhaust gas from Diesel engines, having a catalyst component-carrying layer made of a refractory three-dimensional structure having carried thereon a catalyst component...
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5168085 |
Multi-stage TWC system
Multi-stage catalytic systems and methods are provided for converting NO x , CO, and hydrocarbons in a mixture, to innocuous products. The systems include first and second stages, each with...
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5168086 |
Catalytic cracking catalysis
Catalytic cracking catalysts which contain bayerite and/or eta alumina are used to process hydrocarbon feedstocks that contain nickel.
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5164350 |
Catalyst composition for purification of exhaust gas, catalyst for purification of exhaust gas, and process for producing said catalyst
A catalyst composition for purification of exhaust gas, including (a) high-silica zeolite having a Si/Al ratio of 40 or more, subjected to ion exchange with at least one metal selected from Pt, Pd,...
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5157007 |
Catalyst for purification of exhaust gases of diesel engines and method of use
An open-cell, monolithic catalyst for the purification of diesel-engine exhaust gas with a coating of finely divided inorganic oxides containing vanadium and platinum group metal as active...
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5155077 |
Catalyst for purification of lean-burn engine exhaust gas
A dual-phase zeolite having a transition metal-containing zeolite phase and a transition metal-containing oxide phase. The catalytic material may be an intimate mixture of a phase-layered structure...
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5147837 |
Titania containing dehydrogenation catalysts
The aging properties of Group VIII metal modified non-acidic microporous crystalline materials which in catalysis exhibit high selectivity for dehydrogenation and dehydrocyclization are improved by...
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5143878 |
Zeolite treating process
A hydrocarbon conversion process to yield product of improved properties is effected in the presence of a zeolite characterized by increased Secondary Pore Volume, decreased Lattice Constant,...
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5141908 |
Catalyst composite material for hydrocarbon reactions
Novel catalyst composite material is disclosed which comprises in combination a crystalline metallosilicate zeolite in terms of mole ratios having the general formula: O-below 0.4 X:M 2 O 3 :...
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5141737 |
Iron-containing aluminosilicate
An iron-containing aluminosilicate and a process for producing the iron-containing aluminosilicate. The iron-containing aluminosilicate has a composition of the formula expressed as oxides: aFe 2 ...
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5141909 |
Zeolitic catalyst having selectivity for jet fuel
A catalyst prepared from a ultra-stable Y-type zeolite having a silica/alumina ratio from about 27 to about 33 with the free acid sites passivated using a basic nitrogen-containing compound showing...
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5139984 |
Faujasite-type aluminosilicates, a method of producing the same, and hydrocracking catalysts for heavy hydrocarbon oils
A hydrocracking catalyst for heavy hydrocarbon oils comprising a metallic element of the VIb Group and a metallic element of the VIII Group supported on a carrier containing a novel faujasite...
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5128293 |
Catalyst for upgrading light paraffins
The present invention relates to a process for producing aromatic compounds from a hydrocarbon gas containing C 3 through C 5 paraffinic hydrocarbons under conversion conditions in the presence...
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5122489 |
Non-acidic dehydrogenation catalyst of enhanced stability
A metal selected from the group consisting of ruthenium, iridium or rhenium on non-acidic microporous crystalline materials also containing a dehydrogenation/hydrogenation metal enhances the aging...
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5122363 |
Zeolite-enclosed transistion and rare earth metal ions as contrast agents for the gastrointestinal tract
The invention relates to a method of using zeolite enclosed paramagnetic ions as image brightening or image contrast agents. In particular, zeolite enclosed trivalent gadolinium is useful in MRI...
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5108969 |
Low acidity catalyst for conversion of paraffins to olefins and/or aromatics
A low acidity Group VIII metal-containing zeolite MCM-22 catalyst, said zeolite exhibiting an Alpha value of not greater than about 150, is provided for conversion of aliphatic C 2 to C 12 ...
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5108970 |
Catalysts and process for oligomerization of olefins with nickel-containing zeolite catalysts
There are disclosed catalysts and process for oligomerizing C 3 -C 12 olefins in the liquid phase at 50° C.-150° C. in the presence of a nickel containing zeolite catalyst, the zeolite being a...
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5106803 |
Reforming using a bound zeolite catalyst
Reforming to produce aromatics from aliphatics, using a bond zeolite catalyst containing a Group VIII metal such as platinum, has been found to be extremely sensitive to water, even at water...
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5106798 |
Method for regenerating a Group VIII noble metal deactivated catalyst
A method for regenerating a Group VIII noble metal catalyst which has been contaminated with coke during a reforming process. The method comprises (a) burning off the coke from the catalyst, (b)...
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5106802 |
Catalyst for purification of exhaust gas from diesel engine
A catalyst for the purification of the exhaust gas from a diesel engine, which catalyst comprises a honeycomb carrier possessing through holes disposed parallelly to the direction of flow of the...
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5102839 |
Zeolites of increased hydrogen adsorption capacity
Hydroxyl rich zeolites containing 0.1 to 20 weight percent of a hydrogenation/dehydrogenation metal are described which have increased hydrogen adsorption capacity.
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5098894 |
Binderless zeolite catalysts, production thereof and catalytic reaction therewith
The binderless zeolite of this invention is comprised more than 90% of crystalline aluminosilicate which is produced by crystalized a binder contained in extrudate obtained by molding a mixture of...
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5098684 |
Synthetic mesoporous crystaline material
This invention relates to a new synthetic composition of ultra-large pore crystalline material and use thereof as sorbent and in catalytic conversion of organic and inorganic compounds. The new...
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5091351 |
Catalyst for production of aromatic hydrocarbons
The catalyst is an L-type zeolite with platinum supported thereon, which is then treated with a halogen-containing compound. The catalyst has a long catalyst life and is extremely useful for the...
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5084259 |
Crystalline nickel aluminum borates
The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one Group VIII metallo element, selected from the group consisting of cobalt...
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5081084 |
Catalyst for isomerizing alkylaromatics
This invention presents a novel catalyst formulation for the isomerization of alkylaromatic hydrocarbons. The catalyst is comprised of at least one Group VII metal, and a pentasil zeolite having an...
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