Positive evacuation of FCCU reactor dilute phase volume

Details Positive evacuation of FCCU reactor dilute phase volume Positive evacuation of FCCU reactor dilute phase volume

1992-12-14

1994-06-14

Springer, David B.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208146, C10G 1100

Patent

active

053207440

ABSTRACT:
In its simplest sense, the present invention provides a uniquely shaped conduit between the primary and secondary cyclones or, in the alternative, between the riser and the primary cyclone, which creates an increase in the suction of the dilute phase vapor beyond that normally available in the reactor vessel, thereby reducing the dilute phase residence time in the vessel, reducing post-riser thermal cracking, hydrogen transfer reactions, and coking tendency of mixture in dilute phase.

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