Method and apparatus for cracking residual oils

Details Method and apparatus for cracking residual oils Method and apparatus for cracking residual oils

C - Chemistry, Metallurgy

10

G

196/106

C10G 11/16 (2006.01) C10G 9/32 (2006.01) C10G 11/18 (2006.01)

Patent

CA 1156592

Abstract A hydrocarbon conversion-catalyst regeneration process and apparatus is described for converting residual oils and regeneration of catalyst in two separate low and higher temperature regeneration stages stacked one above the other on the same or different vertical axis to provided catalyst at a temperature above the residual feed psuedo-critical temperature. A CO rich flue gas is recovered from the low temperature regeneration stage and a CO2 rich flue gas is recoveredfrom the higher temperature regeneration stage. The temperature of the catalystmixed with the residual oil feed is sufficient to obtain substantially complete vaporization of the residual oil charge. A special arrangement of apparatus is provided in the lower portion of a riser conversion zone to obtain the intimate vaporization contact between residual oil feed and the high temperature catalystcharged to the riser.

357967

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