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| Number | Title | Issue Date |
| 7368090 | FCC spent catalyst distributor An distributor arrangement introduces spent FCC catalyst more uniformly across the dense bed of the regenerator to provide more even contact with regeneration gas in order to avoid hot spots and zones of incomplete combustion. The invention forms a fluidized hopper ... | 05/06/2008 |
| 7350962 | Liquid recycle inlet distributor assembly A catalytic hydrocracking reactor vessel includes enhanced components for the conversion of a hydrogen gas and fossil fuel feedstream to light liquid hydrocarbons. The reactor vessel comprises one or more of a reactor cup riser with a helical cyclonic separator cond... | 04/01/2008 |
| 7323099 | Two stage fluid catalytic cracking process for selectively producing Cto Colefins A process for selectively producing C2 to C4 olefins from feedstock such as a gas oil or resid. The feedstock is reacted in a first stage comprising a fluid catalytic cracking unit wherein it is converted in the presence of a mixture of convent... | 01/29/2008 |
| 7220341 | Controlling solids flow in a gas-solids reactor This invention is to a process and system for controlling solids distribution in a gas-solids reactor. Solids distribution is controlled by controlling electrical charges between solid particles flowing between conductive surfaces within a gas-solids reactor. The el... | 05/22/2007 |
| 7135155 | Velocity induced catalyzed cavitation process for treating and conditioning fluids The present invention provides an apparatus and a method for a catalytic cavitation reactor comprising an inner pipe having a wall with plurality of spaced apart radially bored inner pipe holes located thereon. A second pipe having a wall with plurality of spaced ap... | 11/14/2006 |
| 7025874 | Nozzle/mixer assembly A bitumen/steam pre-mixer and atomizing nozzle combine to produce a jet of minute liquid droplets (bitumen) in carrier gas (steam). The jet is injected into a draft tube mixer positioned in a fluid bed of hot coke particles suspended in steam and contained within a ... | 04/11/2006 |
| 6960325 | Apparatus for hydrocracking and/or hydrogenating fossil fuels A catalytic hydrocracking reactor vessel for the conversion of a hydrogen gas and fossil fuel feedstream to light liquid hydrocarbons. The reactor vessel comprises reactor cup riser with a helical cyclonic separator conduit for separating a liquid and vapor product ... | 11/01/2005 |
| 6783662 | Cavitation enhanced liquid atomization A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble point of the ca... | 08/31/2004 |
| 6692634 | Method for modifying of hydrocarbon fuel and devices for modifying hydrocarbon fuel The invention relates to chemistry and in particular to technology for processing hydrocarbon fuel, including engine fuel. The invention makes it possible to obtain a fuel with high cetane and octane numbers by means of the following: the initial fuel sup... | 02/17/2004 |
| 6660158 | Catalytic cracking process A catalytic cracking process is described wherein the cracking takes place in a reactor under the influence of a rotating fluidized bed catalyst and compressed gases and/or steam is injected in order to effect movement of the catalyst bed.... | 12/09/2003 |
| 6517706 | Hydrocracking of heavy hydrocarbon oils with improved gas and liquid distribution A slurry feed of a heavy hydrocarbon feedstock and coke-inhibiting additive particles together with a hydrogen-containing gas, are fed upward through a confined hydrocracking zone in a vertical, elongated, cylindrical vessel with a generally dome-shaped b... | 02/11/2003 |
| 6171476 | Cavitation enhanced liquid atomization A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble poin... | 01/09/2001 |
| 6042717 | Horizontal FCC feed injection process An FCC feed injection arrangement injects feed transversely from the sides of a restricted opening into a stream of FCC catalyst to provide good feed and catalyst contacting in an arrangement that simplifies external pipe configurations and maintenance of... | 03/28/2000 |
| 5851380 | Process and apparatus for fluidized catalytic cracking of a hydrocarbon feed An improved apparatus and method for the fluidized catalytic cracking (FCC) of hydrocarbons. Turbulence generation means disposed on the internal surface of an FCC riser-reactor are utilized to provide for a more uniform catalyst flow pattern within the r... | 12/22/1998 |
| 5733440 | Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate an... | 03/31/1998 |
| 5723041 | Process and apparatus for promoting annularly uniform flow An apparatus is described for promoting annularly uniform flow in a reaction space of a mixed phase reactor. The apparatus defines ports which face a shared direction relative to the axis. The apparatus is useful in a process, also described, in which flu... | 03/03/1998 |
| 5660715 | Apparatus and method for quenching in hydroprocessing of a hydrocarbon feed stream This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed which substantially fills the entire volume of a reactor vessel. Catalyst are selected to be essentia... | 08/26/1997 |
| 5622677 | Venturi riser reactor and process for catalytic cracking An improved riser reactor containing a plurality of substantially vertically oriented venturis connected in series whereby the venturis have a maximum diameter, D1, and a minimum diameter, D2 ; and, apparatus for connecting the ventu... | 04/22/1997 |
| 5599440 | Catalyst method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate an... | 02/04/1997 |
| 5589057 | Method for extending the life of hydroprocessing catalyst This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate an... | 12/31/1996 |
| 5492617 | Apparatus and method for quenching in hydroprocessing of a hydrocarbon feed stream This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed which substantially fills the entire volume of a reactor vessel. Catalyst are selected to be essentia... | 02/20/1996 |
| 5466362 | Process and system for catalyst addition to an ebullated bed reactor In an ebullated bed process for hydrotreating a distillate hydrocarbon feedstock it has been found that a catalyst addition slurry is made up with catalyst and feedstock. A control system provides for a constant distillate feedstock rate during intermitte... | 11/14/1995 |
| 5443718 | Reduced gas holdup in ebullated reactor A reactor for refining resid includes an elongated vertical vessel containing a bed of catalyst which is expanded or ebullated by a liquid/gas mixture. The mixture rises in an updraft through the bed and then is recirculated with an increased velocity by ... | 08/22/1995 |
| 5409598 | Method of hydroprocessing On-stream catalyst replacement hydroprocessing method wherein an upstream mixture of hydrogen and hydrocarbon liquid counter flows through a downwardly moving bed of hydroprocessing catalyst in a reactor vessel. The mixed feed stream of hydrogen and liqui... | 04/25/1995 |
| 5389238 | Ebullated bed process with recycle eductor In an ebullated bed process the feedstock conduit is provided with at least 50 psi (4.4 atm) head in excess of a liquid-vapor separation pressure. The excess head is used in combination with an eductor to recycle a reactor effluent liquid. The expanded ca... | 02/14/1995 |
| 5360535 | Ebullated bed process with recycle eductor In an ebullated bed process reactor effluent is subjected to high pressure followed by intermediate flash separation. An ebullation liquid is formed by educting high pressure flash separation liquid into an intermediate flash separation liquid. The ebulla... | 11/01/1994 |
| 5348644 | Process and apparatus for contacting a hydrocarbon feedstock with hot solid particles in a tubular reactor with a rising fluidized bed In a fluidized catalytic cracking (FLC) type unit for contacting of a hydrocarbon feedstock with hot solid particles in a fluidized bed in an upright tubular-type upflow hydrocarbon conversion reactor, there is provided, between the means for fluidization... | 09/20/1994 |
| 5160426 | Process and apparatus for indirect heating of catalyst stripper above a bubbling bed catalyst regenerator A process and apparatus for achieving hot catalyst stripping of spent FCC catalyst in a stripper mounted over a bubbling bed regenerator. Hot catalyst stripping is achieved by indirect transfer of heat from the regenerator to the stripper. Heat pipes, sur... | 11/03/1992 |
| 5098554 | Expedient method for altering the yield distribution from fluid catalytic cracking units A fluid catalytic cracking unit equipped with multiple feed injection points along the length of the riser is operated such that all of the fresh feed is charged to one of different feed injection points, depending on the ratio of light distillate (gasoli... | 03/24/1992 |
| 5076908 | Method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate an... | 12/31/1991 |
| 5047140 | Process and apparatus for multi-stage regeneration of catalyst in a bubbling bed catalyst regenerator and side mounted fast fluidized bed regenerator A process and apparatus are disclosed 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 catalyst standpipe within the regenerator. A... | 09/10/1991 |
| 5043055 | Process and apparatus for hot catalyst stripping above a bubbling bed catalyst regenerator A process and apparatus for achieving multistage, hot catalyst stripping of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. Hot catalyst stripping is... | 08/27/1991 |
| 5034115 | Process and apparatus for fast fluidized bed regeneration of catalyst in a bubbling bed catalyst regenerator A process and apparatus are disclosed 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 catalyst standpipe within the regenerator. A... | 07/23/1991 |
| 5032251 | Process and apparatus for fast fluidized bed regeneration of catalyst in a bubbling bed catalyst regenerator 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 catalyst standpipe within the regenerator. A closed coke c... | 07/16/1991 |
| 5032252 | Process and apparatus for hot catalyst stripping in a bubbling bed catalyst regenerator A process and apparatus for achieving multistage, hot catalyst stripping of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. A secondary or hot cataly... | 07/16/1991 |
| 4990241 | Hydrotreating process to minimize catalyst slumping A hydrotreating process is provided with at least one deflector to minimize catalyst agglomeration and buildup. Preferably, the deflectors comprise an inner annular baffle and an outer annular baffle.... | 02/05/1991 |
| 4889618 | Treatment of catalyst fines-oil mixtures A process for separating finely divided petroleum cracking catlyst from a mixture of the finely divided catalyst particles with a high boiling refractory hydrocarbon oil by intimately contracting said mixture with a concentrated aqueous solution of a basi... | 12/26/1989 |
| 4875996 | Method for liquid feed dispersion in fluid catalytic cracking systems Method and apparatus for liquid feed dispersion in fluid catalytic cracking systems wherein an improved fluidized catalytic cracking nozzle assembly having a nozzle unit so constructed that substantially all liquid fed through the unit is converted to mis... | 10/24/1989 |
| 4871446 | Catalytic cracking process employing mixed catalyst system A catalytic cracking process is disclosed which comprises catalytically cracking a hydrocarbon charge stock in a catalytic cracking unit possessing at least one reaction zone, stripping zone and catalyst regeneration zone to provide a gasiform product emp... | 10/03/1989 |
| 4753780 | Atomizing feed for cracking unit A feedstock pipe for a FCC unit is provided with a plurality of turbulence generating members mounted on its interior surface. Each of the turbulence generating members has a pointed tip pointing toward the discharge end of the pipe and a ramp inclined to... | 06/28/1988 |
