Regeneration apparatus

Details Regeneration apparatus Regeneration apparatus

1975-12-15

1977-03-01

Scovronek, Joseph

Chemistry: physical processes

Physical processes

Crystallization

23288S, 208164, 252417, B01J 808, B01J 818, B01J 3714

Patent

active

040100030

ABSTRACT:
An apparatus for the oxidation of coke from a spent catalyst at a controlled temperature and for the essentially complete conversion of carbon monoxide resulting from the oxidation of coke to produce regenerated catalyst and spent regeneration gas.
The apparatus comprises in combination and particular arrangement a spent-catalyst receiving chamber for containing a dense-bed of fluidized catalyst in which chamber spent catalyst is oxidized to produce regenerated catalyst and partially spent regeneration gas; a transfer conduit through which said gas and said catalyst pass and in which carbon monoxide is essentially completely converted to carbon dioxide to produce spent regeneration gas and regenerated catalyst at an increased temperature; a regenerated-catalyst receiving chamber for containing dense-bed of regenerated catalyst and in which spent regeneration gas and regenerated catalyst are separated; and, a regenerated-catalyst recycle means by which hot regenerated catalyst can be recycled from the transfer conduit or the regenerated-catalyst receiving chamber to the spent-catalyst receiving chamber in amounts to control the temperature and hence the rate of coke oxidation in the spent-catalyst receiving chamber.

REFERENCES:
patent: 2929774 (1960-03-01), Smith
patent: 3208831 (1965-09-01), Belden
patent: 3607126 (1971-09-01), Pfeiffer
patent: 3607127 (1971-09-01), Pfeiffer
patent: 3843330 (1974-10-01), Conner et al.
patent: 3844973 (1974-10-01), Stine et al.

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