Process and apparatus for thermal cracking and fractionation...

Details Process and apparatus for thermal cracking and fractionation... Process and apparatus for thermal cracking and fractionation...

C - Chemistry, Metallurgy

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C10G 51/04 (2006.01) C10G 7/00 (2006.01) C10G 9/00 (2006.01) C10G 55/04 (2006.01)

Patent

CA 1184524

ABSTRACT A method and apparatus for the thermal cracking and fractionation of petroleum heavy gas oil and simultaneously heavy crude oil feedstock below atmospheric pressure. The feedstock is fed to a fractionator after heat ex- change with distillate fractions withdrawn from the fractionator A heavy gas oil fraction is withdrawn from the fractionator, fed to a heater and subsequently to the top of a thermal cracking reactor, whilst the reduced or heavy crude stock is fed to the mid-section of the reactor. The cracked products are quenched with the feedstock and fed to the bottom flash zone of the fractionator. The process may also be applied to existing crude oil topping still with modi- fications and operated above atmospheric pressure.

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