Staged catalytic cracking process

Details Staged catalytic cracking process Staged catalytic cracking process

1992-05-29

1994-05-24

Breneman, R. Bruce

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural parallel stages of chemical conversion

208 74, 208 78, 208113, 208155, C10G 5106, C10G 1100

Patent

active

053146107

ABSTRACT:
A staged catalytic cracking process and apparatus is disclosed where each stage has a catalyst to oil ratio of at least 15 and there are individual hydrocarbon feeds to each stage and product removal from each stage. There is a residence time profile with the first stage having a short residence time and the successive stages having progressively longer residence times. Further, there is a feed profile with the lighter components of the total feed going to the first stage and the heavier components being fed to the later stages. The apparatus has a generally vertical orientation which permits it to be incorporated into existing cracking units for upgrading and also easily provides for both short and long residence times.

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"Fluid Catalytic Cracking Report" by Amos A. Avidan, Michael Edwards and Hartley Owen, Oil and Gas Journal, Jan. 8, 1990, pp. 33 to 58.

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