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| Number | Title | Issue Date |
| 7967975 | Sealing system for cyclone leg A system for sealing the legs of two stages of cyclones in series used in fluid catalytic cracking (FCC) processes, comprising a terminal leg configuration, which is devoid of moving parts and makes use of a long-radius curve, and which changes the flow direction of... | 06/28/2011 |
| 7955497 | Process for recovering ultrafine solids from a hydrocarbon liquid A method for separating and recovering ultrafine particulate solid material from a suspension or slurry of the solid material and a hydrocarbon liquid by precipitation or flocculation of a heavy fraction of the hydrocarbon liquid with an effective amount of a precip... | 06/07/2011 |
| 7674369 | Process for recovering ultrafine solids from a hydrocarbon liquid A method for separating and recovering ultrafine particulate solid material from a suspension or slurry of the solid material and a hydrocarbon liquid by precipitation or flocculation of a heavy fraction of the hydrocarbon liquid with an effective amount of a precip... | 03/09/2010 |
| 7431826 | Discarded FCC equilibrium catalyst through reclamation The invention relates to the partial recovery of discarded, spent, or waste fluid catalytic cracking (FCC) equilibrium catalyst by use of a separation device located off site, away from any FCC Process unit or Petroleum Refining area, whereby the separation of recov... | 10/07/2008 |
| 7429363 | Riser termination device The present invention provides an improved separator for use in hydrocarbon cracking process. ... | 09/30/2008 |
| 7351326 | FCC closed cyclone with snorkel Thermal cracking in a riser cracking, closed cyclone, fluidized catalytic cracking process is reduced. A snorkel or flow conduit having an inlet just above the catalyst stripper moves stripper vapor into the closed cyclone. The system preferably operates without a s... | 04/01/2008 |
| 7329309 | Gas-solids separation device and method A multi-stage gas-solids separator is configured so that the higher density (solids) output flows of two or more of the separator stages are merged together. The multi-stage separator is preferably composed of cyclone separators, with the diplegs of at least two of ... | 02/12/2008 |
| 7329790 | Wet scrubbing and recycle of effluent-contaminating catalyst particles in an oxygenate-to-olefin process The economics of a catalytic process using a fluidized conversion zone and a relatively expensive catalyst for converting an oxygenate to light olefins are substantially improved by recovering and recycling effluent contaminating catalyst particles from the product ... | 02/12/2008 |
| 7309383 | Process for removing solid particles from a gas-solids flow Catalyst losses are prevented in riser reactor systems by using a low inlet velocity for the first cyclone separator in each multi-stage cyclone separator in the reactor. Catalyst particles not separated from the product output flow in an oxygenate-to-olefin reactor... | 12/18/2007 |
| 7276210 | Stripping apparatus and process A stripping apparatus for desorbing gases from solid particles through which flows counter-currently a stripping fluid is described, which comprises a series of sets of at least two parallel, segmented, baffle plates each, with the segmented baffles being oriented s... | 10/02/2007 |
| 7262384 | Reaction vessel and method for synthesizing nanoparticles using cyclonic gas flow A reaction vessel and a method for efficiently producing and collecting nanoparticles in the reaction vessel using cyclonic gas flow. Gas is injected through an inlet tangentially positioned relative to the axis of the vessel to cause the gas to form an outer helica... | 08/28/2007 |
| 7247233 | Apparatus and process for minimizing catalyst residence time in a reactor vessel A reactor conduit discharges into a disengaging chamber that is directly connected to a separator. A dipleg of the separator is directly connected to the disengaging chamber or to an intermediate chamber which is in direct communication with the disengaging chamber.... | 07/24/2007 |
| 7150860 | Process and apparatus for quick feed contacting with immediate vapor disengagement An apparatus and process in which a catalyst nozzle and a feed nozzle are joined together at a joint in a reactor vessel that contains a disengaging transport conduit in communication with a separator. An inlet to the transport conduit is disposed vertically higher ... | 12/19/2006 |
| 7138094 | Reactor for catalytic treatment of a particle-containing gas An up-flow reactor for the catalytic treatment of particle containing gas comprising at least one fixed catalytic bed; at least one drain pipe located upstream of the fixed catalytic bed, the drain pipe disposed within the reactor and a dust rectifier located downst... | 11/21/2006 |
| 7128827 | Integrated catalytic cracking and steam pyrolysis process for olefins Integration of gas oil and light olefin catalytic cracking zones with a pyrolytic cracking zone to maximize efficient production of petrochemicals is disclosed. Integration of the units in parallel allows production of an overall product stream with maximum ethylene... | 10/31/2006 |
| 7118715 | Stripping process with disproportionately distributed openings on baffles A baffle-style stripper for an FCC process comprising sloped baffles in which a greater volumetric flow rate of stripping medium permeates openings in a bottom section of the baffle than through a top section of the baffle for low catalyst flux stripping operations.... | 10/10/2006 |
| 7090081 | Selectively removing undesirably sized catalyst particles from a reaction system The present invention provides various processes for selectively removing undesirably sized catalyst particles from a reaction system. In one embodiment, a plurality of catalyst particles, having a first median particle diameter, is withdrawn from the reaction syste... | 08/15/2006 |
| 7083762 | Multiple riser reactor with centralized catalyst return The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and opt... | 08/01/2006 |
| 7077997 | Stripping apparatus An FCC apparatus uses a cantilevered support for supporting baffles in a stripping vessel. Only one end of the support is fastened to a wall of a contacting conduit or a wall of the stripping vessel and the other end is spaced apart from the near wall of the contact... | 07/18/2006 |
| 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 |
| 7060228 | Internal device for separating a mixture that comprises at least one gaseous phase and one liquid phase Device that is integrated in a chamber that allows a separation of a mixture that comprises at least one gaseous fraction and one liquid fraction, whereby said mixture is obtained from a zone for bringing into contact a liquid phase, a gaseous phase and solid partic... | 06/13/2006 |
| 7033546 | Process and apparatus for contacting hydrocarbons with catalyst A reactor apparatus and process for contacting hydrocarbons with catalyst. The reactor apparatus comprises a plurality of tubular reactors each having a first end into which a catalyst is fed and a second end through which the catalyst and product exit the tubular r... | 04/25/2006 |
| 7022221 | Stripping apparatus and process An FCC apparatus uses a cantilevered support for supporting baffles in a stripping vessel. Only one end of the support is fastened to a wall of a contacting conduit or a wall of the stripping vessel and the other end is spaced apart from the near wall of the contact... | 04/04/2006 |
| 6969420 | Method of collecting nanoparticles by using a cyclone and method of designing the cyclone A cyclone is used to collect nanoparticles and is formed of a chamber, and a guide wing located in the chamber such that the guide wing and the chamber form a passage. A flow entraining the nanoparticles is moved through the passage in such a way that the flow is ca... | 11/29/2005 |
| 6939823 | Stripper and a stripping process for removing the flue gas carried by regenerated catalyst A stripper and a stripping process for removing the flue gas carried by regenerated catalyst. A cylindrical stripper mainly comprises a degassing pipe at the longitudinal axis, a horizontal pipe connected with the lower end of the degassing pipe, several sets of inn... | 09/06/2005 |
| 6902593 | Separation device to remove fine particles A multi-cyclone gas/solids separator with reduced solids re-entrainment is disclosed. The separator uses a plurality of cyclones spaced horizontally apart from adjacent cyclones to process flue gas containing residual catalyst fines. Each cyclone has a body that has... | 06/07/2005 |
| 6870072 | Heat recovery in an olefin production process Disclosed is a process for recovering heat in an oxygenate to olefin (“OTO”) production process. The process includes removing heat while maintaining the temperature of an effluent stream that comprises solid particles (typically catalyst particles) and a gas ph... | 03/22/2005 |
| 6858130 | Method and apparatus for separating solids from a gaseous phase The present invention relates to a method and apparatus for separating particulate matter from a gaseous stream. According to the method, the gaseous stream containing the suspended particulates is passed into a separator apparatus which includes at least two multip... | 02/22/2005 |
| 6846405 | Circulating fluid bed reactor system This invention is to a circulating fluid bed reactor that is designed so as to have the ability to adjust catalyst holdup within the reaction zone of the reactor while maintaining substantially constant catalyst circulation rate through the reaction zone. The abilit... | 01/25/2005 |
| 6743280 | Method and apparatus for particle separation including mechanical separation of particles The present invention relates to a method for separating entrained particles from a gas in a fluidised bed reactor system and fluidised bed reactor system including a particle separator for separating entrained particles from a gas. The particles are separated from ... | 06/01/2004 |
| 6692552 | Riser termination device The present invention provides a novel separator for use in a hydrocarbon cracking process and a novel spent catalyst stripping device and process wherein the separator includes a downcomer pipe having a vertical window for allowing the separated vapor to... | 02/17/2004 |
| 6359018 | Process for upflow fixed-bed hydroprocessing of fischer-tropsch wax An integrated process for producing a liquid hydrocarbon stream from Fischer-Tropsch hydrocarbon product without having to remove particulate contaminants such as catalyst fines from hot Fischer-Tropsch wax is disclosed. The process involves performing Fi... | 03/19/2002 |
| 6126905 | Baffles for a fluid to fluid contactor A novel apparatus and process, including a baffle, for contacting a first fluid with a second fluid of lower density than the first fluid in counter-current flow in a manner that increases the contacting efficiency.... | 10/03/2000 |
| 6113777 | Direct turn separator for particles in a gaseous mixture and its use for fluidized bed thermal or catalytic cracking A separator and process for separating particles from a gaseous mixture wherein the separator includes: at least one chamber comprising a zone (1) which forms a rectangular or square cross section for passage of the mixture circulating in a tube reactor (... | 09/05/2000 |
| 6099721 | Use of magnetic separation to remove non-magnetic, particles from FCC catalyst A process for use of magnetic separation to remove non-magnetic particles from FCC catalyst is disclosed. A stream of circulating catalyst from a fluidized catalytic cracking (FCC) unit is charged to a magnetic separator. The catalyst is magnetically frac... | 08/08/2000 |
| 6045688 | Method based on a fluidized-bed reactor for converting hydrocarbons The invention relates ro a method of converting hydrocarbons. According to the method, a gaseous or liquid hydrocarbon feed is passed into a circulating fluidized-bed reactor, wherein the feed is converted at a high temperatue under the influence of parti... | 04/04/2000 |
| 6022390 | Assembly for separating solids from a gaseous phase The invention relates to a method of separating solids from a gas flow in a fluidized catalytic process and to a cyclone assembly suited for use in a fluidized catalytic process. According to the invention, the gas flow of the process carrying the suspend... | 02/08/2000 |
| 5976355 | Low residence time catalytic cracking process A process for producing liquid fuels from heavy hydrocarbons such as residual oil in which the cracking temperatures are in the range of 800° F. to 1200° F., and the residence times are between 0.05 seconds and 0.50 seconds.... | 11/02/1999 |
| 5944982 | Method for high severity cracking A process for the dual riser contacting of a primary feed and a secondary recycle feed fraction uses independent recovery of the separate streams from the riser cracking zone to improve the product yields and properties. Separate recovery segregates the u... | 08/31/1999 |
| 5869008 | Apparatus and method for the separation and stripping of fluid catalyst cracking particles from gaseous hydrocarbons There is provided an apparatus which separates and strips catalyst particles suspended in gaseous hydrocarbons after the suspension of gaseous hydrocarbons and catalyst particles have traversed a gas/solids conduit means. A substantially can-shaped open-e... | 02/09/1999 |
