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| Number | Title | Issue Date |
| 8101132 | Mixing apparatus To provide a mixing device capable of effectively mixing stock oil with a catalyst, while increasing the amount of throughput, the relations of 8.0≧Q×(W/D)/(u1+u2), Q=300 to 2000 [kg/m2s], W/D=0.2 to 0.5, u1=5 to 300 [m/s], and u | 01/24/2012 |
| 7407572 | Feed injector This invention relates to an apparatus and process for atomizing a petroleum feed. More particularly, a liquid petroleum feed is atomized with an atomization apparatus in which the apparatus has an orifice that produces a generally flat spray pattern of finely dispe... | 08/05/2008 |
| 7332131 | Apparatus and method for achieving a desireable feed/catalyst contacting condition in fluid catalytic cracking units A feed nozzle assembly located near the bottom of an FCC riser reactor includes a plurality of feed nozzles, each feed nozzle including a discharge end which is angled toward the center of the riser. The angled discharged ends provide a combined discharge of hydroca... | 02/19/2008 |
| 7112307 | Riser reactor system for hydrocarbon cracking A riser reactor system for conversion of hydrocarbon feedstock to ethylene and propylene is described. The riser reactor system prevents riser reactors with a plurality of inlet ports for feeding gases having different compositions and for controlling the residence ... | 09/26/2006 |
| 7077949 | FCC reactor vessel A fluidized catalytic cracking reactor vessel having at its upper end means to separate catalyst particles from an effluent of a dilute phase fluidized catalytic cracking reactor riser, which separation means are fluidly connected to the downstream part of the react... | 07/18/2006 |
| 7029571 | Multi stage selective catalytic cracking process and a system for producing high yield of middle distillate products from heavy hydrocarbon feedstocks According to this invention, there is provided a process and apparatus for catalytic cracking of various petroleum based heavy feed stocks in the presence of solid zeolite catalyst and high pore size acidic components for selective bottom cracking and mixtures there... | 04/18/2006 |
| 6979360 | Apparatus and process for preventing coke accumlation in a centripetal separator In a cyclone separator used for separating solids from gases, we discovered placing at least one opening in a lateral surface of a gas outlet conduit on a side facing away from an inlet to the cyclone separator prevents coke deposits from forming thereon. A pluralit... | 12/27/2005 |
| 6969496 | Apparatus with increased yield and selectivity using side-by-side reaction zones An apparatus provides for increased feed throughput without loss of conversion or selectivity by increasing the catalyst volume in a final reactor of at least three reaction zones. The catalyst volume of the final reactor may be larger because the inner and outer sc... | 11/29/2005 |
| 6911057 | Apparatus for converting coal into fuel cell quality hydrogen and sequestration-ready carbon dioxide An apparatus for burning coal to produce substantially pure hydrogen for use in fuel cells, together with “sequestration ready” carbon dioxide and a stream of oxygen depleted air for powering gas turbines. The apparatus includes two fluidized bed reactors and a ... | 06/28/2005 |
| 6736960 | Feed injection system for catalytic cracking process A fluid catalytic cracking unit includes a nozzle located in the bottom of a riser reactor. A first conduit provides a passageway for enabling a dispersing gas to flow therethrough and through an outlet passageway in a cap covering the end of the conduit. The outlet... | 05/18/2004 |
| 6689331 | Staged combustion process and apparatus for regenerating a reforming or aromatic compound production catalyst in a moving bed An apparatus for regeneration a reforming or aromatic compound production catalyst comprises a first combustion zone wherein the first combustion zone receives catalyst and an oxygen-containing gas; a successive second combustion zone; and a conduit commu... | 02/10/2004 |
| 6613290 | System for fluidized catalytic cracking of hydrocarbon molecules A fluidized catalytic cracking system includes a riser for contacting catalyst and hydrocarbon feedstock. The riser has an inner surface that defines a central passage. The central passage acts as a flow path for the catalyst and the hydrocarbon feedstock... | 09/02/2003 |
| 6569317 | Trickle valve An apparatus comprising a trickle valve positioned at the lower end of a vertical dipleg of a gas-solids separator comprising a pair of co-operable clamshell doors arranged in such a manner that mutual opposite swinging movement between a closed position ... | 05/27/2003 |
| 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 |
| 6511635 | Fluid state catalytic cracking reactor having solid fastened packing element for homogeneously distributing particle flow The upstream portion of a reactor (1), contains, between the feeding area of the catalyst flow and the injection area of the charge to be cracked, at least one solid and attached packing element (6, 6'), that extends over all or part of the cross section ... | 01/28/2003 |
| 6387247 | Feed injection system for catalytic cracking process A catalytic cracker riser reactor is connected to a regenerator standpipe through which hot, regenerated catalyst enters the riser bottom region. A hydrocarbon feed, such as gas oil, and dispersing gases, such as steam, are introduced through a single bot... | 05/14/2002 |
| 6322760 | Process and apparatus for thermal conversion of hydrocarbons to aliphatic hydrocarbons which are more unsaturated than the starting products, combining a steam cracking step and a pyrolysis step A continuous pyrolysis and decoking process and apparatus is described for the production of acetylenic compounds, in which hydrocarbons and steam are circulated in at least one tube (31) of a steam cracking reactor (30) and steam is circulated in at leas... | 11/27/2001 |
| 6146519 | Gas solid contact riser with redistribution An dilute phase transport riser for the contacting of particles with a gas uses redistributors along the length of the riser to prevent the formation of localized regions of high particle concentration along the wall of the riser. A series of redistributo... | 11/14/2000 |
| 5820747 | Steam cracking process and facility comprising injection of powder which is collected at a single point A steam cracking process and facility is described which comprises injection of erosive powder to effect at least partial decoking of transfer line exchangers without interrupting the steam cracking stream. The powder, preferably injected just upstream of... | 10/13/1998 |
| 5658539 | Chambers of a moving bed An enclosure in which there circulates a moving bed of solid particles (for example a moving-bed catalytic reactor such as a reforming reactor), is delimited in the enclosure by at least one grill. In the enclosure a fluid passes through the bed in a dire... | 08/19/1997 |
| 5597537 | FCC feed contacting with catalyst recycle reactor An FCC process mixes spent and regenerated catalyst to obtain thermal equilibrium of a blended catalyst stream before contacting feed with the blended catalyst stream. The spent and regenerated catalyst from the reactor and regenerator catalyst may be mix... | 01/28/1997 |
| 5589139 | Downflow FCC reaction arrangement with upflow regeneration An FCC arrangement uses two stages upflow conduit combustion and a regenerator cyclone separator to supply catalyst particles from a dip leg directly into a downflow reaction conduit. The downflow reaction conduit provides an immediate stage of initial ca... | 12/31/1996 |
| 5525317 | Ammonia reagent application for NOX SOX and particulate emission control A flue gas emission control system for coal fired boilers use individual units for NOx, SOx and particulate removal and provides ammonia injection to all three units from a single source.... | 06/11/1996 |
| 5417935 | Wheeled SCR sealing mechanism An SCR reactor (50) is disclosed which permits ready removal of a catalyst bed (58) from the SCR reactor and provides an effecting sealing mechanism between the catalyst bed (58) and the frame (52) of the SCR reactor. The frame is provided with side rails... | 05/23/1995 |
| 5376339 | Direct-coupled FCC riser cyclone and plenum A riser cyclone separator is positioned external to a containment vessel. The riser cyclone separator discharges separated catalyst to a catalyst stripper and separated vapor to a plenum, both positioned internal to the containment vessel. Means is provid... | 12/27/1994 |
| 5273720 | FCC stripper with shiftable baffles This invention provides an improved apparatus for stripping hydrocarbons from spent catalyst which offers ready access to stripper baffles for inspection and maintenance. The inner baffles move upwardly or downwardly on a conduit that slides over the cent... | 12/28/1993 |
| 5248411 | Apparatus and process for withdrawing stripper gas from an FCC reactor vessel A riser cyclone separator for rapidly separating catalyst from cracked hydrocarbon vapors in a fluid catalytic cracking process. The riser cyclone is provided with an annular port for drawing stripping gas into the riser cyclone to separate entrained cata... | 09/28/1993 |
| 5227142 | Production apparatus for vapor-grown fine fibers Production apparatus for vapor-grown fine fibers, comprising a vertical furnace and a horizontal furnace intersecting each other in an L-shaped configuration. Raw material and catalyst and carrier gas are injected into the top of the vertical furnace to f... | 07/13/1993 |
| 5215725 | Aromatic alkylation process A system for the catalytic distillation production of alkylated aromatic compounds is provided wherein the vapor pressure of the olefin may be increased while maintaining the same olefin feed rate and aromatic to olefin ratio. In one embodiment a side str... | 06/01/1993 |
| 5209907 | Fluid flow control and isolation An improved system for performing an alkylation process and a method for handling liquid catalyst in an alkylation process. This improvement involves a method and apparatus by which liquid alkylation catalyst contained in alkylation process equipment can ... | 05/11/1993 |
| 5205992 | Apparatus for introducing catalyst particles into a moving bed of catalyst A riser reactor which includes a wall extending downward to an enlarged housing at the bottom of the riser reactor, where the housing has (a) an inlet for introducing catalyst particles into the housing and includes a first fluidization device, where the ... | 04/27/1993 |
| 5194227 | Multiple wye catalytic cracker and process for use The conventional wye (where the clean regenerated catalyst returns from the regenerator to contact the feed as it enters the riser) is replaced with two or more wyes, all connected between the regenerator outlet and the inlet to a common short cracking ri... | 03/16/1993 |
| 5188805 | Controlling temperature in a fluid hydrocarbon conversion and cracking apparatus and process comprising a novel feed injection system The invention is directed to a process and apparatus for controlling reactor temperature and/or carbon and heat balance in a fluid hydrocarbon conversion and cracking unit. In particular, the invention is directed to a process wherein the introduction of ... | 02/23/1993 |
| 5160706 | Process for the catalytic cracking of a hydrocarbon oil A device for introducing a hydrocarbon into a riser reactor containing a tubular diluent gas conduit having an interior surface and exterior wall surface where the interior wall surface is for passing a diluent gas into the reactor and two or more tubular... | 11/03/1992 |
| 5143703 | Fluid flow control and isolation An improved system for performing an alkylation process and a method for handling liquid catalyst in an alkylation process. This improvement involves a method and apparatus by which liquid alkylation catalyst contained in alkylation process equipment can ... | 09/01/1992 |
| 5139748 | FCC riser with transverse feed injection Hydrocarbon feedstock is dispersed in an FCC riser by directing jets of atomized feed droplets into a flowing stream of catalyst particles in a direction substantially perpendicular to the axis of the riser. By directing the feed into the riser in a subst... | 08/18/1992 |
| 5112576 | Catalytic cracking unit with combined catalyst separator and stripper A catalytic cracking apparatus is provided for cost-effectively separating and stripping hydrocarbon from catalyst while limiting the occurrence of undesired catalytic overcracking and thermal cracking reactions. The apparatus includes a reactor, a combin... | 05/12/1992 |
| 5061457 | Apparatus for liquid feed dispersion in fluid catalytic cracking systems Apparatus for liquid feed dispersion in fluid catalytic cracking systems is disclosed 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 m... | 10/29/1991 |
| 4909993 | Closed cyclone FCC catalyst separation apparatus Disclosed is a method and apparatus for fluid catalytic cracking (FCC). The output of a reactor riser zone is fed to a riser cyclone separator, a primary cyclone separator, and secondary cyclone separators, connected in series within a single reactor vess... | 03/20/1990 |
| 4874585 | Economic recovery and utilization of boiler flue gas pollutants Improved methods and apparatus for removing unwanted pollutants from flue gases are disclosed. A sequence of at least three vertical beds of particulates is disposed in the flue gas exhaust duct. A first bed comprises boiler ash or sand. Lime in the fly a... | 10/17/1989 |
