Paolo Palmas - Des Plaines IL, US Lawrence A. Lacijan - Palatine IL, US Sujay R. Krishnamurthy - Hoffman Estates IL, US Paul S. Nishimura - Arlington Heights IL, US Lisa M. Wolschlag - Aurora IL, US
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.
A device is presented for use as a centerpipe in a radial flow reactor, or for a radial flow adsorption bed. The device includes a plurality of stacked slotted cylindrical sections and frustums. The design retains the particles in a solid particulate bed that can be flowing through the reactor. The frustums provide covers to the cylindrical sections to prevent the flow of solid particles back through the slots in the cylindrical sections.
Paolo Palmas - Des Plaines IL, US Lawrence A. Lacijan - Palatine IL, US Sujay R. Krishnamurthy - Hoffman Estates IL, US Paul S. Nishimura - Arlington Heights IL, US Lisa M. Wolschlag - Aurora IL, US
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.
Apparatuses And Methods For Gas-Solid Separations Using Cyclones
Cyclones for gas-solid separators are described, which are especially applicable for use in a downflowing third stage separator (TSS) for the removal of dust particles, such as solid catalyst fines, from the flue gas streams exiting the catalyst regenerator in fluid catalytic cracking (FCC) processes. A number of important flow characteristics result from the configuration of the cyclones, particularly with respect to the relative axial lengths over which swirl vanes and central hubs of the cyclones extend. These characteristics include a decrease in growth of turbulent eddies that conventionally result from a sudden expansion, in open cross-sectional area, of gas exiting swirl vanes.
Process And Apparatus For Distributing Hydrocarbon Feed And Catalyst
A process and apparatus for fluid catalytic cracking feeds catalyst to a chamber of a riser. The catalyst exits the chamber and passes through a plenum and into a reaction zone through a plurality of tubes which distribute the catalyst uniformly over a cross section of the reaction zone of the riser. A hydrocarbon feed is fed to the plenum. The hydrocarbon feed passes from the plenum into the reaction zone through a plate comprising a multiplicity of openings which distribute the hydrocarbon feed uniformly over a cross section of the reaction zone of the riser. The feed is contacted with the catalyst in a reaction zone of the riser.
Process And Apparatus For Distributing Hydrocarbon Feed And Catalyst
A process and apparatus for fluid catalytic cracking feeds catalyst to a chamber of a riser. The catalyst exits the chamber and passes through a plenum and into a reaction zone through a plurality of tubes which distribute the catalyst uniformly over a cross section of the reaction zone of the riser. A hydrocarbon feed is fed to the plenum. The hydrocarbon feed passes from the plenum into the reaction zone through a plate comprising a multiplicity of openings which distribute the hydrocarbon feed uniformly over a cross section of the reaction zone of the riser. The feed is contacted with the catalyst in a reaction zone of the riser.
Reverse Acting Nozzle Valve And Fuel Injector Using Same
A nozzle assembly includes a tip body having a lower end and defining a nozzle outlet. A needle sleeve is at least partially positioned in the tip body and includes a valve seat. A needle valve member is at least partially positioned within the needle sleeve, and is moveable between a closed position in contact with the valve seat and an open position out of contact with the valve seat. The needle valve member moves toward the lower end of the tip body when moving toward its open position. The nozzle assembly finds its preferred application in hydraulically-actuated fuel injectors having direct control needles.
Apparatus For Retaining Solid Material In A Radial Flow Reactor And Method Of Converting Hydrocarbons
- Des Plaines IL, US Sujay Krishnamurthy - Hoffman Estates IL, US
International Classification:
B01J 8/02 C07C 5/333
Abstract:
An apparatus for use in radial flow reactors is presented. The apparatus includes a first partition and a second partition with supports coupled therebetween. The first partition includes a first opening and a second opening to allow the passage of fluid therethrough. A baffle extends into a flow channel formed by adjacent support members to completely obstruct the first opening to interrupt a portion of the fluid flow therethrough. The baffle extends upwardly from one of the supports.