Class 208/113 - Catalytic

Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes in which a catalytic material is employed.
No. of patents: 1052
Last issue date: 02/14/2012

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Number	Title	Issue Date
4163709	Catalyst demetallization by oxidation in a defined temperature range In a catalytic cracking process wherein the cracking catalyst is poisoned and contaminated by metal present in the feedstock, an improved process for the removal of such metal poisons as nickel, iron and/or vanadium is employed which comprises contacting ...	08/07/1979
4162213	Catalytic cracking of metal-contaminated oils Metal-contaminated oils, including mildly hydrotreated residual oils, are catalytically cracked in the absence of added hydrogen in a fluid catalytic cracking process wherein the regenerated catalyst has less than about 0.05 wt. % residual carbon. By cond...	07/24/1979
4159239	Catalytic cracking process The operation of a fluid catalytic cracking unit having a regenerator designed to completely combust carbon monoxide to carbon dioxide thermally is improved by circulating a trace amount of at least one metal of the group consisting of platinum, palladium...	06/26/1979
4152292	Method of initiating essentially complete oxidation of CO to CO₂ in a spent-catalyst regeneration zone A method for initiating essentially complete oxidation of carbon monoxide, resulting from the oxidative removal of coke from spent FCC catalyst, to carbon monoxide in a dense-phase bed of catalyst maintained in a regeneration zone. Coke is oxidized at fir...	05/01/1979
4148751	Method of regenerating coke-contaminated catalyst with simultaneous combustion of carbon monoxide A method for regenerating a coke-contaminated cracking catalyst with the simultaneous carefully controlled catalyzed combustion of CO to CO2 within a regeneration zone to produce regenerated catalyst and flue gas. Novel features of the method i...	04/10/1979
4148714	Metals passivation with catalyst fines Used cracking catalyst fines from a cracking process wherein antimony or a compound thereof is used as a metals passivation agent are used as an efficient passivation agent in a cracking process....	04/10/1979
4147660	Method for reactivation of platinum group metal catalyst with aqueous alkaline and/or reducing solutions A method for reactivation of a platinum group metal catalyst which comprises treating the platinum group metal catalyst lowered in catalytic activity as the result of having been used for the catalytic reaction of hydrocarbons optionally containing an oxy...	04/03/1979
4146464	Temporary shutdown of co-combustion devices A metal combustion promoter is introduced into the circulating inventory of catalyst in the catalytic cracking process to temporarily change the operating mode of the regenerator and decrease the CO content of the flue gas, thus permitting temporary shutd...	03/27/1979
4146463	Removal of carbon monoxide and sulfur oxides from refinery flue gases A cyclic fluidized catalytic cracking process is operated with a cracking catalyst which is modified with one or more metal oxides capable of reacting with sulfur oxides in the regeneration zone wherein the catalyst is regenerated under conditions which r...	03/27/1979
4144189	Process for regenerating spent cracking catalyst A process for regenerating spent cracking catalyst, especially spent fluid cracking catalyst, is provided, which includes subjecting a mixture of spent cracking catalyst particles and hydrogen to wave energy in the microwave range....	03/13/1979
4143086	Fluid catalytic cracking of amorphous polypropylene The propylene values of waste, amorphous polypropylene are recovered at least in part, by charging amorphous polypropylene together with a hydrocarbon feedstock to a catalytic cracking unit....	03/06/1979
4133841	Process for upgrading effluents from syntheses of the Fischer-Tropsch type This process for upgrading effluents from syntheses of the Fischer-Tropsch type comprises several steps applied to the three cuts obtained from these effluents, i.e. a "light fraction", a "light oil" and a "decanted oil". The products are mainly gasoline,...	01/09/1979
4132629	Hydrocarbon cracking A cracking reactor is controlled in response to the proportion of heavy aromatic constituents in a feedstock to be cracked....	01/02/1979
4118337	Method for regenerating fluidizable solid particles employed in hydrocarbon conversion A hydrocarbon conversion-catalyst regeneration operation and apparatus required is described. Hot regenerated catalyst is mixed with spent catalyst in a first upflow annular fluid catalyst bed regeneration operation about a second concentric downflow flui...	10/03/1978
4118281	Conversion of solid wastes to fuel coke and gasoline/light oil Solid organic wastes are slurried with hot coker recycle feed or fresh petroleum feedstocks at temperatures within the range from about 300° to 1000° F and the resulting mixture is coked to produce gas, oil, and coke. The oil can be used as clean liquid...	10/03/1978
4118339	Use of noble metal solutions in catalyst regeneration zones The use of a solution in a catalyst regeneration zone to increase the CO2 /CO ratio of the flue gas produced in the regeneration zone comprising a noble-metal CO oxidation promoter and a solvent comprising a selected saturated aliphatic alcohol...	10/03/1978
4115250	Method for removing pollutants from catalyst regenerator flue gas Carbon monoxide and sulfur oxides are removed from flue gas produced in a catalyst regenerator in an FCC system and sulfur from the flue gas is shifted to form hydrogen sulfide, which is recovered in the gases removed from the cracking reactor in the syst...	09/19/1978
4115248	Hydrocarbon hydroconversion with a catalyst having interconnected macropores A catalyst composition, a method for its preparation and a hydrotreating process using same. The catalyst comprises a rigidly interconnected pack of irregularly shaped particles having an average diameter below 0.15 mm. Among the particles and throughout ...	09/19/1978
4115251	Process for removing pollutants from catalyst regenerator flue gas Carbon monoxide and sulfur oxides are removed from flue gas produced in a catalyst regenerator in an FCC system and sulfur from the flue gas is shifted to form hydrogen sulfide, which is recovered in the gases removed from the cracking reactor in the syst...	09/19/1978
4115249	Process for removing sulfur from a gas Sulfur oxides are removed from flue gas in a catalyst regenerator in a fluid catalyst cracking system while liquid-hydrocarbon product yield from the system is maintained at a high level by heating a particulate silica-containing cracking catalyst to 800-...	09/19/1978
4111845	Cracking catalyst modified by antimony thiophosphate Prevention of detrimental effect of metals such as nickel, vanadium and iron on the activity of a cracking catalyst when used in a cracking process having essentially no hydrogen added thereto is achieved by using in the cracking process novel cracking ca...	09/05/1978
4108795	Method of regenerating coke-contaminated catalyst with simultaneous combustion of carbon monoxide A method for regenerating a coke-contaminated cracking catalyst with the simultaneous carefully controlled combustion of CO to CO2 within a regeneration zone to produce regenerated catalyst and flue gas. Novel features of the method include add...	08/22/1978
4107032	Process for cracking hydrocarbons In a fluid catalytic cracking process for cracking hydrocarbons with a zeolitic cracking catalyst and in the absence of added hydrogen, the desired value of CO2 /CO in the flue gases from the regenerator is achieved by including in the catalyst...	08/15/1978
4101444	Catalyst demetallization utilizing a combination of reductive and oxidative washes A process for the removal of metal poisons such as nickel, iron and/or vanadium from a hydrocarbon conversion catalyst which includes the steps of contacting the catalyst with both a reductive wash and a subsequent oxidative wash to remove at least a port...	07/18/1978
4098677	Catalytic cracking process with CO₂ -stripped regenerated catalyst A catalytic cracking process is provided in which entrained nitrogen is stripped from the regenerated cracking catalyst with a stripping gas comprising at least about 80 mole percent of carbon dioxide prior to contacting the hydrocarbonaceous feed with th...	07/04/1978
4097362	Method for enhancing distillate liquid yield from an ethylene cracking process In a thermal cracking process employing inert hot solids as a heat source, the cracker effluent solids are passed to a burner for combustion of deposited and entrained coke. The liquid product of the thermal cracking process is distilled and the liquid re...	06/27/1978
4097243	Hydrocarbon-feed distributor of injecting hydrocarbon feed A hydrocarbon-feed distributor for injecting a hydrocarbon feed into contact with a fluidizable catalyst at conversion conditions in the lower end of the riser reactor conduit whereby wall temperatures within the conversion zone are reduced and overcracki...	06/27/1978
4093535	Catalytic cracking process A catalytic process for cracking of gas oil is disclosed, wherein trace amounts of metals of Periods 5 and 6 of Group VIII or rhenium is added to the total catalyst inventory so as to enhance significant conversion of the CO in the regenerator while maint...	06/06/1978
4090948	Catalytic cracking process An improvement in the fluid cracking process is obtained by contacting the hydrocarbon feed in a riser reaction zone first with a recycled coke-containing spent catalyst and then contacting the resultant mixture with freshly regenerated catalyst to produc...	05/23/1978
4088567	Solids removal and fluid catalytic cracking of a synthetic hydrocarbon stream derived from hydrocarbon-containing solids Disclosed is a process for the removal of solids and the fluid catalytic cracking of a synthetic hydrocarbon stream having a 90% boiling point above 800° F. and containing finely divided solids. The stream is cracked under low-severity cracking condition...	05/09/1978
4088568	Catalytic cracking of hydrocarbons Non-hydrogenative endothermic catalytic cracking of hydrocarbon, particularly petroleum, fractions at relatively low pressures and high temperatures in a system where the endothermic heat required for cracking is supplied by catalyst as the heat transfer ...	05/09/1978
4072600	Catalytic cracking process A catalytic process for cracking of gas oil is disclosed, wherein trace amounts of metals of Periods 5 and 6 of Group VIII or rhenium is added to the total catalyst inventory so as to enhance significant conversion of the CO in the regenerator while maint...	02/07/1978
4071436	Process for removing sulphur from a gas Sulfur oxides are removed from a gas and the sulfur is converted to hydrogen sulfide by the steps of: (1) reacting sulfur oxides in the gas with alumina to form a solid sulfur-containing compound and remove sulfur oxides from the gas; and (2) contacting t...	01/31/1978
4064037	Temporary shutdown of co-combustion devices A metal combustion promoter is introduced into the circulating inventory of catalyst in the catalytic cracking process to temporarily change the operating mode of the regenerator and decrease the CO content of the flue gas, thus permitting temporary shutd...	12/20/1977
4062759	Fluidized catalytic cracking regeneration process A process is described herein for regeneration of spent, coke contaminated fluidized cracking catalyst by burning coke therefrom with a molecular oxygen containing regeneration gas in a fluidized dense phase bed, and for burning substantially all carbon m...	12/13/1977
4051069	Fluidized catalytic cracking regeneration process A process is described herein for regeneration of spent, coke contaminated fluidized cracking catalyst by burning coke therefrom with a molecular oxygen containing regeneration gas in a fluidized dense phase bed, and for burning substantially all carbon m...	09/27/1977
4043899	Method and means for separating gasiform materials from finely divided catalyst particles Catalyst and hydrocarbon vapors are separated in a cyclone attached to the discharge of a riser cracking operation. The cyclone is modified to include a separate cyclonic stripping of catalyst separated from hydrocarbon vapors....	08/23/1977
4040945	Hydrocarbon catalytic cracking process An improved hydrocarbon catalytic cracking process which comprises introducing tin into the cracking zone so as to maintain a volume ratio of carbon dioxide to carbon monoxide in the gaseous effluent from the catalyst regeneration zone of at least 3.0....	08/09/1977
4036740	Hydrocarbon catalytic cracking process An improved hydrocarbon catalytic cracking process which comprises determining the concentrations of carbon dioxide and carbon monoxide in the gaseous effluent from the catalyst regeneration zone and adjusting the rate of addition of a selective treating ...	07/19/1977
4035284	Method and system for regenerating fluidizable catalyst particles A hydrocarbon conversion-catalyst regeneration operation is described which relies upon a dense fluid catalyst bed superimposed by a dispersed catalyst phase operation to effect elevated temperature regeneration of the catalyst providing low CO levels les...	07/12/1977

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Class 208/113 - Catalytic