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7371316 Production of lower molecular weight hydrocarbons  
A catalytic composition useful for cracking and reducing the viscosity of heavy hydrocarbons. The catalytic composition comprises Portland cement, a volcanic ash component, titanium dioxide, and a...
7347930 Process for cracking hydrocarbon oils  
A novel process for cracking olefins including contacting a hydrocarbon oil with a catalyst in a riser reactor having multiple reaction zones under cracking reaction conditions; separating reaction...
7125817 Combined cracking and selective hydrogen combustion for catalytic cracking  
A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one...
7122492 Combined cracking and selective hydrogen combustion for catalytic cracking  
A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one...
6790343 Sulfur transfer additive for catalytic cracking of hydrocarbons and a catalytic cracking process of hydrocarbons using the same  
The present invention relates to a sulfur transfer additive for catalytic cracking of hydrocarbons and a catalytic cracking process of hydrocarbons using the sulfur transfer additive, said additive...
6726834 Process for catalytic cracking of a hydrocarbon feed with a MFI aluminisilcate composition  
A process for catalytic cracking of a hydrocarbon feed, includes the steps of providing an initial hydrocarbon fraction; providing a catalyst comprising an aluminosilicate composition having an...
6635168 Gasoline sulfur reduction catalyst for fluid catalytic cracking process  
The present invention is directed to certain catalyst compositions and processes that are capable of reducing sulfur compounds normally found as part of the gasoline fraction streams of fluid...
6379536 NOx reduction compositions for use in FCC processes  
Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen...
6143167 NO.sub.x reduction compositions for use in FCC processes  
Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen...
6129833 Catalytic cracking with reduced emission of sulfur oxides  
Sulfur oxides are removed in the regenerator zone and rapidly released as H 2 S in the reactor zone of an FCC system employing a particulate SO x catalytic/absorbent comprising Cu and an alkali...
5968342 Zeolite catalyst and method of converting hydrocarbons using the same  
The present invention provides a catalyst to convert hydrocarbons, which comprises a zeolite containing substantially no proton and having an intermediate pore diameter, a molar ratio of SiO 2 to...
5690810 Single-step process to upgrade naphthas to an improved gasoline blending stock  
Disclosed is a one-step process intended as an alternative to catalytic reforming which upgrades naphthas by simultaneously saturating aromatics, isomerizing paraffins and selectively cracking...
5658454 Hydrocarbon coversion using improved zeolite Beta catalyst  
A catalyst composition which comprises a crystalline metallosilicate having the structure of zeolite Beta, phosphor and a matrix that is substantially free of crystalline aluminum phosphate which...
5656149 Hydrocarbon conversion processes using zeolite SSZ-41  
The present invention relates to new crystalline zeolite SSZ-41 which comprises oxides of (1) silicon or a mixture of silicon and germanium, and (2) zinc, said zinc being present in an amount from...
5637207 Fluid catalytic cracking process  
An intermediate distillate fraction is subjected to fluid catalytic cracking (FCC) to yield liquid fuel and lighter. The C 7 -C 10 paraffin lift fluid is converted to C 2 -C 5 olefins and...
5616237 Split feed injection fluid catalytic cracking process  
A fluid catalytic cracking unit equipped with multiple feed injection points along the length of the riser is operated such that portions of the same fresh feed are charged to different feed...
5601699 Method for cracking hydrocarbons  
Methods for preparing phosphorus containing catalysts comprising a large-pore zeolite, e.g., zeolite Beta, zeolite ZSM-12, or zeolite ZSM-20, and a matrix which have improved attrition resistance....
5549813 FCC process employing low unit cell size y-zeolites  
Disclosed is a fluid catalytic cracking process for cracking gas oils and naphtha which provides improved selectivity for C 3 -C 5 olefins employing a catalyst comprising a novel zeolite...
5534135 Synthesis of zeolites  
A novel zeolite characterized by a large number of secondary pores, a substantially decreased Lattice Constant of below about 24.19 Å, and a substantially decreased Acid Site Density is attained...
5486284 Catalytic cracking with MCM-49  
This invention relates to use of MCM-49 in catalytic cracking. Large amounts of light olefins are produced.
5472594 FCC process for producing enhanced yields of C.sub.4 /C.sub.5 olefins  
Disclosed is a process for converting a hydrocarbon charge to a product containing improved yields of C 4 /C 5 olefins with a reduction in the loss of gasoline yield which comprises: passing...
5414181 Integrated catalytic cracking and olefin producing process  
Disclosed is a method which combines catalytic cracking and olefin production using a coked catalytic cracking catalyst to dehydrogenate an alkane feed stream and form an olefin rich product...
5395512 Hydrocarbon cracking process employing zeolite catalysts with hybrid [A1,B]-zeolite additives  
A hydrocarbon feedstock is catalytically cracked at an elevated temperature in a cracking zone with a zeolite cracking catalyst. The cracking catalyst employed comprises a crystalline...
5336393 Process for catalytically converting organic compounds  
Catalytic conversion of organic compounds wherein catalysts come into contact with steam is performed efficiently by using a catalyst which comprises an MFI type zeolite having a ratio of SiO 2 ...
5326465 Process for the production of LPG rich in olefins and high quality gasoline  
A process for producing LPG rich in propylene, butylenes and high octane number gasoline by catalytic conversion which comprises contacting the preheated hydrocarbon feedstock with a solid acidic...
5324419 FCC to minimize butadiene yields  
A process for fluidized catalytic cracking of heavy feed to make more catalytically cracked products and less thermally cracked products such as butadiene is disclosed. Operating an upflow riser...
5318696 Catalytic conversion with improved catalyst catalytic cracking with a catalyst comprising a large-pore molecular sieve component and a ZSM-5 component  
A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a large-pore molecular sieve material and an additive catalyst composition...
5306417 Catalytic cracking process utilizing a silica modified bayerite and/or eta alumina-containing catalyst  
Catalytic cracking catalysts and catalyst additives which contain silica modified bayerite and/or eta alumina.
5300215 Catalytic cracking with a catalyst comprising a boron phosphate matrix  
A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a molecular sieve material and a boron phosphate-containing matrix. An embodiment of...
5298153 Cracking process using an attrition resistant catalyst  
An attrition resistant catalytic cracking catalyst is prepared by spray drying an aqueous slurry containing a molecular sieve having cracking activity, a clay such as kaolin, a silica sol and...
5268089 FCC of nitrogen containing hydrocarbons and catalyst regeneration  
Oxides of nitrogen (NO x ) emissions from an FCC regenerator are reduced by forcing the regenerator to operate between full and partial CO burn mode. Operating with less than 1 mole % O2 and up to...
5260240 Process for the demetallization of FCC catalyst  
A process is disclosed for passivating the reactivity of contaminant metals, such as nickel and vanadium, which have been deposited on a catalytic cracking catalyst, by adding to the cracking...
5258114 Ultra large pore cracking catalyst and process for catalytic cracking  
A process and catalyst for catalytic cracking comprising a non-layered, ultra-large pore crystalline material. The crystalline material preferably has a benzene adsorption capacity greater than...
5243121 Fluid catalytic cracking process for increased formation of isobutylene and isoamylenes  
A composite fluid catalytic cracking catalyst comprising a non-zeolitic component of at least 45% Al 2 O 3 and containing ≤30% Y zeolite with unit cell size ≤24.29 Å, the matrix...
5228980 Fluidized catalytic cracking process employing shell-coated FCC catalysts  
A novel shell-coated FCC catalyst is disclosed wherein the shell is a mixture of at least one refractory metal oxide or silicate or precursor thereof (preferably clay) having a particle size of 0.3...
5208006 Large-pored molecular sieves containing at least one octahedral site comprising titanium and at least silicon as a tetrahedral site  
Crystalline molecular sieves having large pores are disclosed having at least one octahedrally coordinated site comprising titanium and at least tetrahedrally coordinated silicon in the framework....
5202294 Low pressure drop regeneration of a catalyst  
A process and apparatus for the regeneration of spent FCC catalyst in a single vessel are disclosed. In one embodiment, catalyst is at least partially regenerated in a primary stage comprising a...
5198397 Two-stage fluid bed regeneration of catalyst with shared dilute phase  
A process and apparatus for multi-stage fluidized bed regeneration of spent FCC catalyst in a single vessel. At least two isolated relatively dense phase fluidized beds are disposed beneath a...
5173174 Metal-tolerant FCC catalyst and process  
A metals-tolerant FCC catalyst and a process using the catalyst are disclosed. The catalyst matrix comprises bastnaesite and a limited quantity of a large pore boehmite alumina having an average...
5160601 Hydrocarbon conversion with octane-enhancing catalysts  
Novel hydrocarbon conversion catalysts and methods for their preparation are disclosed. The catalysts are particularly appropriate for the conversion of hydrocarbon feeds to high octane gasoline,...
5160424 Hydrocarbon cracking, dehydrogenation and etherification process  
A method for upgrading paraffinic naphtha to high octane fuel by contacting a feedstock, such as C7-C22 fresh virgin naphtha, with porous acid cracking catalyst under low pressure selective...
5158670 Hydrocarbon catalytic cracking utilizing a precoked catalyst  
A catalytic cracking process is provided in which a zeolitic cracking catalyst having the structure of faujasite is first regenerated, then coked at a high catalyst to hydrocarbon weight ratio,...
5154818 Multiple zone catalytic cracking of hydrocarbons  
Methods for the fluidized catalytic cracking of plural hydrocarbon feedstocks in a riser reactor are disclosed. The processes generally comprises contacting a relatively light hydrocarbon feedstock...
5151259 Modified crystalline aluminosilicate and method of preparing the same  
A crystalline aluminosilicate having its anhydrous state a formula expressed in terms of mol ratios as follows: xQ:0.01-0.1 M 2 /n O:0-0.8 Z 2 O 3 :SiO 2 :0.0001-0.5 MeS, wherein: Q is an...
5141624 Catalytic cracking process  
A catalytic process for cracking vanadium-containing oils employs a physical mixture of (a) zeolite embedded in an inorganic matrix material and (b) magnesium oxide on alumina support.
5139649 Process for multi-stage fast fluidized bed regeneration of catalyst  
A process and apparatus for achieving turbulent or fast fluidized bed regeneration of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped...
5135641 Catalytic cracking process employing silica/alumina cogel catalysts  
Novel hydrocarbon conversion catalysts and methods for their preparation and use are disclosed. The catalysts are particularly appropriate for the conversion of hydrocarbon feeds to high octane...
5120893 Process for catalytically converting C10 and higher olefins to C9 and lower olefins  
The present invention provides a highly selective catalytic cracking process for the conversion of feedstocks containing a predominant content of C 10 and higher mixed olefins into C 9 and lower...
5112473 Hydrotreating or cracking process employing an acidified dealuminated Y-zeolite  
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,...
5110776 Cracking catalysts containing phosphate treated zeolites, and method of preparing the same  
A process for preparing a zeolite containing catalyst which has improved attrition resistance, and causes improved octane with no appreciable change in dry gas and coke make when used during...
Matches 1 - 50 out of 357 1 2 3 4 5 6 7 8 >