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| Number | Title | Issue Date |
| 8163247 | Process for upgrading FCC product with additional reactor with catalyst recycle A process is disclosed for contacting feed with mixed catalyst in a secondary reactor that is incorporated into an FCC reactor. The mixed catalyst used in the secondary reactor is regenerated catalyst from a regenerator that regenerates spent catalyst from an FCC re... | 04/24/2012 |
| 8137632 | Biomass conversion process A process is described including: contacting solid biomass with a first catalyst stream in a first reaction zone operated at a temperature T1 (from about 250 to about 400° C.), for conversion of a portion of the solid biomass and forming a first gaseous ... | 03/20/2012 |
| 8062599 | Oxygenate conversion reactor catalyst coolers A catalyst cooled is employed for converting oxygenates to light olefins. The catalyst becomes spent as deposits from the reaction clog up pores on the catalyst surface. A portion of the spent catalyst is regenerated in a regenerator and a portion is circulated back... | 11/22/2011 |
| 8052935 | System and method for removing sulfur from gas stream A system for removing sulfur from a gaseous stream includes (a) a reaction bed for receiving the gaseous stream and for reacting sulfur dioxide and at least some of the hydrogen sulfide of the gaseous stream into elemental sulfur to provide an elemental sulfur strea... | 11/08/2011 |
| 8007729 | Apparatus for feed preheating with flue gas cooler Hydrocarbon feed to a catalytic reactor can be heat exchanged with flue gas from a catalyst regenerator. This innovation enables recovery of more energy from flue gas thus resulting in a lower flue gas discharge temperature. As a result, other hot hydrocarbon stream... | 08/30/2011 |
| 7972565 | Stripping apparatus with multi-sloped baffles An apparatus for stripping gases from catalyst material comprises baffles having a second face that extends toward a downcomer channel between baffles to spread catalyst out on adjacent baffles for better contact with stripping gas. ... | 07/05/2011 |
| 7947230 | Apparatus for regenerating catalyst Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed. ... | 05/24/2011 |
| 7935314 | Apparatus for mixing regenerated and carbonized catalyst An apparatus for mixing regenerated and carbonized catalyst involves obstructing upward flow of catalyst by one or more baffles between a catalyst inlet and a feed distributor. Each catalyst stream may be passed to opposite sides of a riser. Baffles obstruct upward ... | 05/03/2011 |
| 7906077 | FCC process with spent catalyst recycle Disclosed is an FCC apparatus and process in which spent catalyst is recycled to the base of the riser to contact fresh feed through a passage disposed within the riser. ... | 03/15/2011 |
| 7799286 | Stripping apparatus In an FCC apparatus in which swirl arms are used to discharge gas and catalyst from a riser, a baffle is used to direct descending catalyst away from a wall of a disengaging vessel proximate a stripping section comprising elongated strips of metal. ... | 09/21/2010 |
| 7799285 | Stripping apparatus for the gas-solid separation in a fluidized bed A stripping apparatus is described for the gas-solid separation process in a fluidized bed in a counter-current flow of a stripping fluid. The apparatus includes sets of perforated baffle-plates with holes, fixed in series, alternating central and lateral plates ins... | 09/21/2010 |
| 7799287 | Apparatus and process for regenerating catalyst Disclosed is an apparatus and process for disengaging regenerated catalyst from flue gas in a catalyst regenerator so as to avoid re-entrainment of catalyst that has settled into a bed in the catalyst regenerator using a disengaging device. A disengaging arm of the ... | 09/21/2010 |
| 7727486 | Apparatus for heating regeneration gas Disclosed is an apparatus for combusting dry gas to heat the air fed to an FCC regenerator to increase its temperature and minimize production of undesirable combustion products. Preferably, the dry gas is a selected FCC product gas. Alternatively or additionally, d... | 06/01/2010 |
| 7682576 | Apparatus for recovering power from FCC product Disclosed is an apparatus for recovering power from an FCC product. The dry gas is combusted and combined with FCC regenerator flue gas to raise the power recovery capability of the flue gas. The flue gas can be used to generate electrical power or steam. Alternativ... | 03/23/2010 |
| 7670568 | System for reactivating catalysts A method of reactivating a catalyst, such as a solid catalyst or a liquid catalyst is provided. The method comprises providing a catalyst that is at least partially deactivated by fouling agents. The catalyst is contacted with a fluid reactivating agent that is at o... | 03/02/2010 |
| 7575725 | Controllable space velocity reactor An apparatus for controlling space velocity in a fluidized catalytic conversion reactor is described. The catalyst flux rate can be adjusted during the process of the reaction to adjust the space velocity and maintain a fast fluidized flow regime therein. The set pa... | 08/18/2009 |
| 7431894 | Catalyst withdrawal apparatus for regulating catalyst inventory in a fluid catalyst cracking unit A catalyst withdrawal apparatus and method for regulating catalyst inventory in a fluid catalytic cracking catalyst (FCC) unit is provided. In one embodiment, a catalyst withdrawal apparatus for removing catalyst from a FCC unit includes a pressure vessel having a m... | 10/07/2008 |
| 7429363 | Riser termination device The present invention provides an improved separator for use in hydrocarbon cracking process. ... | 09/30/2008 |
| 7399450 | Cyclone layer reactor A fluidized-bed reactor is disclosed. The fluidized-bed reactor steadies the gas flow through the fluidized bed chamber of the reactor. The swirl chamber of the reactor consists of a conical housing in which a conical insert is also situated. This creates an annular... | 07/15/2008 |
| 7378059 | Downflow test unit for the study of catalysts in short contact time reactions between the catalyst and the reagents A test unit for the study of catalysts in short contact time reactions between a catalyst and at least one reagent, with a down transported flow reactor (4), with a load inlet (13, 13a, 13b) and a discharge outlet (14) linke... | 05/27/2008 |
| 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 |
| 7344634 | 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... | 03/18/2008 |
| 7332133 | Cyclone system for disengaging solid and gaseous particles in FCC systems with reduced coke formation in disengager vessels An improved cyclone system for disengaging solid and gaseous particles in fluid catalytic cracking (FCC) processes with reduced coke formation in disengager vessels, without favoring release of the disengaged catalyst into cyclones in subsequent stages, said system ... | 02/19/2008 |
| 7332132 | Stripping apparatus and process An apparatus and process for stripping gases from solids comprises a structured packing in a stripping section of a vessel. The structured packing comprises a plurality of corrugated ribbons with each corrugated ribbon having at least two faces angular to each other... | 02/19/2008 |
| 7332134 | Fluid bed oxygenates to olefins reactor apparatus and process of controlling same A reactor apparatus and related method for controlling at least one process variable in a circulating fluid bed oxygenates to olefins reactor system comprising a riser are provided. The process variable is selected from at least one of (i) space velocity, (ii) avera... | 02/19/2008 |
| 7312370 | FCC process with improved yield of light olefins An FCC process for obtaining light olefins comprises contacting a hydrocarbon feed stream with blended catalyst comprising regenerated catalyst and coked catalyst. The catalyst has a composition including a first component and a second component. The second componen... | 12/25/2007 |
| 7303731 | Method and apparatus for regenerating an iron-based fischer-tropsch catalyst Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, ... | 12/04/2007 |
| 7285694 | Thermobaric molecular fractionation Systems and methods for converting organic material into commercially viable products, such as burnable low sulfur engine fuels. The system of the present invention includes an anaerobic stripping reactor for processing organic materials into a bio-softened slurry, ... | 10/23/2007 |
| 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 |
| 7270743 | Products produced form rapid thermal processing of heavy hydrocarbon feedstocks The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the pr... | 09/18/2007 |
| 7270791 | Angular flow distribution bottom head An improved angled annular deflector for a gas-phase polymerization reactor and improved method for delivery of a stream of polymerizable fluid to a gas-phase polymerization reator. The angled annular deflector has an outer surface with a conical shape, an inner sur... | 09/18/2007 |
| 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 |
| 7250140 | FCC reactor A fluid catalytic reactor vessel having at its upper end a single centrally positioned primary cyclone having a gas-solids inlet fluidly connected to the downstream end of a fluid catalytic riser, which riser is positioned externally from a fluid catalytic reactor v... | 07/31/2007 |
| 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 |
| 7223714 | Method of transferring catalyst in a reaction system The invention is directed to methods of transfering catalyst particles into and within reaction systems. The reaction systems are those that use catalysts that comprise molecular sieves, particularly metalloaluminophosphate molecular sieves, especially metalloalumin... | 05/29/2007 |
| 7220351 | Method and device for catalytic cracking comprising in parallel at least an upflow reactor and at least a downflow reactor An apparatus and a process for catalytic cracking of a hydrocarbon feed is described, carried out in at least two reaction zones, one (30) operating in catalyst riser mode, wherein the feed and catalyst from regeneration zone (3) are circulated from bo... | 05/22/2007 |
| 7214252 | Method and device for pyrolyzing and gasifying organic substances or substance mixtures An apparatus for pyrolysis and gasification of organic substances and mixtures thereof is provided with a pyrolysis reactor (1), a fluidized-bed firing (3) for pyrolysis residue, a reaction zone (2) for the pyrolysis gases (13) and circul... | 05/08/2007 |
| 7210581 | Apparatus for magnetically separating integrated circuit devices A method and apparatus of separating integrated circuit (IC) devices according to magnetic properties of the devices is disclosed. A plurality of IC devices are subjected to a magnetic field. The IC devices containing only nonferrous material are not responsive to t... | 05/01/2007 |
| 7195741 | Multiple riser reactor The present invention is directed to a hydrocarbon conversion apparatus. The apparatus comprises the following: a plurality of riser reactors, each of the riser reactors having a first end into which a catalyst can be fed and a second end through which the catalyst ... | 03/27/2007 |
| 7182918 | Desulfurization process A hydrocarbon desulfurization system that circulates fluidizable solid particles through a fluidized bed reactor, a fluidized bed regenerator, and a fluidized bed reducer to thereby provide for substantially continuous desulfurization of a hydrocarbon-containing flu... | 02/27/2007 |
