Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Fluidized bed
Reexamination Certificate
2008-05-06
2008-05-06
Caldarola, Glenn (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Fluidized bed
C422S139000, C422S144000, C422S145000, C422S147000, C422S223000, C208S120200, C208S121000, C208S113000
Reexamination Certificate
active
07368090
ABSTRACT:
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 to collect spent catalyst and a horizontally extended header with multiple horizontally extended outlet arms to place catalyst into the regenerator. The invention may use an aeration means to fluidize the header to further assist catalyst flow. Furthermore, the spent catalyst delivered to the top of the regenerator dense reduces NOxemissions in the flue gas.
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Joseph Wilson and Chris Ross, “FCC Revamp Improves Operations at Australian Refinery”, Oil & Gas Journal, Oct. 25, 1999, at 63.
Myers Daniel N.
Niewiedzial Steven
Pittman Rusty M.
Tretyak Mikhail
Caldarola Glenn
Nguyen Huy-Tram
Paschall James C
UOP LLC
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