Patent ID: 7435331
Filing Date: 2008-10-14
Classification: B01J,C10G

Abstract:
1. A method of converting an original FCC unit of side by side configuration to a converted FCC unit for processing light feedstock comprising: replacing an original regenerator with a regenerator, comprising: a fluidization distributor for introducing fluidization gas into the centerwell for fluidizing the catalyst in the annulus, wherein the fluidization distributor is connected to a source of a fluidization gas; introducing a spent catalyst through the standpipe portion into the centerwell; introducing a fuel oil through the fuel distributor into the centerwell; mixing the spent catalyst and the fuel oil within the centerwell; introducing a fluidization gas into the centerwell through the fluidization distributor to provide a fluidized catalyst and fuel mixture; introducing the catalyst and fuel mixture into the dense phase bed through the radial slot; introducing combustion air through the air distributor into the dense phase bed; and combusting at least a portion of the fuel oil and the spent catalyst to provide carbon dioxide and the regenerated catalyst.