Spent catalyst regeneration apparatus with internal regenerated-catalyst recycle means

Patent · Tue Jun 28 04:00:00 EDT 1977

OSTI ID:7210106

Pulak, R P

A catalyst regeneration apparatus is designed for the oxidation of coke from a spent catalyst and for the conversion of carbon monoxide resulting from the oxidation of coke to carbon dioxide. 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 partially-spent regeneration gas and regenerated 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, an internal regenerated-catalyst recycle means by which hot regenerated catalyst can be recycled from the transfer conduit to the spent-catalyst receiving chamber in amounts to increase the temperature and hence the rate of coke oxidation in the spent-catalyst receiving chamber. 4 claims, 1 figure.

• Assignee: UOP Inc.
• Patent Number(s): US 4032299
• OSTI ID: 7210106
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL REACTIONS
COKE
CRACKING
DECOMPOSITION
ENERGY RECOVERY
HEAT RECOVERY
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RECOVERY
REGENERATION
THERMOCHEMICAL PROCESSES