Mineral oils: processes and products – Chemical conversion of hydrocarbons – Solids contacting and mixing
Reexamination Certificate
2006-04-27
2009-08-11
Bhat, N. (Department: 1797)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Solids contacting and mixing
C208S161000, C208S164000, C422S144000, C422S145000, C422S147000
Reexamination Certificate
active
07572364
ABSTRACT:
A fines injection apparatus, a fluid catalytic cracking (FCC) system having a fines injection apparatus, and a method for using the same are provided. In one embodiment, a FCC system includes a FCC unit, a fines collector, and a fines injector coupled to the fines collector for retuning the fines recovered in the fines collector to the FCC unit. In another embodiment, an apparatus for injecting fines into a FCC system includes a fines separator coupled to an effluent stream and an injection apparatus coupled to a regenerator. A conduit is provided for delivering collected fines from the fines separator to the injection apparatus. In yet another embodiment, a method for injecting fines into FCC system includes collecting fines from a waste stream of a FCC system, automatically transferring the collected fines to a fines injection apparatus, and periodically injecting the transferred fines into the FCC system.
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“IMS to Control Room”, Dwg S-29, Sheet 1, Intercat, Savannah, Georgia, Nov. 26, 2001.
Brown Manfred William
Evans Martin
Bhat N.
Intercat Equipment, Inc.
Tanzina Chowdhury Patterson & Sheridan
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