Method and apparatus for separating fluidized solid particles suspended in gasiform material
Patent 4478708 Issued on October 23, 1984. Estimated Expiration Date: 
October 11, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 11, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2654699 3123547 3406112 3785962 3898050 Method and system for regenerating fluidizable catalyst particles Fluid cracking process and the method for separating a suspension discharged from a riser cracking zone Method and apparatus for improved fluid catalytic riser reactor cracking of hydrocarbon feedstocks Apparatus for the catalytic cracking of hydrocarbons Separation of gases from particle streams InventorApplicationNo. 06/540359 filed on 10/11/1983US Classes:208/161, Separation of entrained fines from effluents208/120.01, With group III metal, rare earth metal, or metal oxide (i.e., Sc, Y, Al, Ga, In, Tl, metal of atomic number 57-71 or oxide thereof)208/127, Suspension system208/164, Solids transferring422/147, And means mechanically separating and removing particulate bed material from fluid effluent55/342, MULTIPLE SEPARATORS, EACH WITH DISCRETE AND LONGITUDINALLY CONFINED GAS INLET OR OUTLET FLOW PATH95/271Tangential gas inflow (e.g., cyclone, etc.)ExaminersPrimary: Gantz, Delbert E.Assistant: Chaudhuri, O. Attorney, Agent or FirmInternational ClassesC10G 9/00 (20060101)C10G 11/00 (20060101) C10G 11/18 (20060101) B01J 8/00 (20060101) AbstractThe method and means of this invention comprises discharging a suspension of solids (inert or catalytic) in gasiform material (whether hydrocarbon vapors, combustion product flue gases, stripping gases or combinations thereof) from a riser contact zone through a plurality of radiating confined passageway emanating from the upper discharge periphery of the riser each of which is in tangential communication at the outer end of the confined passageway with a cylinder open in the bottom end thereof. The cylinder is closed at the top except for a coaxially aligned conduit of smaller diameter extending downwardly through said cylinder with its bottom open end terminating adjacent a lower portion of the inlet of the confined passageway. | |
