Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1991-03-25
1993-02-09
Morris, Theodore
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 48Q, 208 67, 208113, C10G 6512, C10G 9116, C10G 5700
Patent
active
051850770
ABSTRACT:
A process and apparatus for fluidized catalytic cracking of heavy oils are disclosed. Quenching and cyclone separation are done in the transfer line to the main distillation column. Quenching hot vapor from the reactor, preferably with liquid recycled from the main column, improves yields, prevents coking in the transfer line and permits higher cracking reactor temperatures. Cyclone separation of quench and/or condensed liquid prevents slugging, or two phase flow, in the transfer line. Some rough-cut fractionation can be achieved in the cyclone separator. Steam stripping of cyclone liquid optimizes operation of the main column.
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Hailey P. L.
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
Morris Theodore
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