Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1982-08-23
1983-11-29
Garvin, Patrick
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 72, 208 74, 208 78, 208113, 208121, 208164, 502 55, C10G 1118
Patent
active
044179740
ABSTRACT:
Conversion of a hydrocarbon feed containing a catalyst-deactivating component in a riser FCC cracking system can be increased by employing a baffle in the lower part of the riser to exclude a portion of the upwardly flowing catalyst from initial contact with feed hydrocarbons containing the catalyst-deactivating component. Part of the catalyst flowing upwardly through the riser thereby is excluded from contact with the catalyst-deactivating component until the catalyst-deactivating component has been at least partially removed from the resulting hydrocarbonaceous vapor by deposition on another portion of the upwardly flowing catalyst.
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Chevron Research Company
Garvin Patrick
La Paglia S. R.
Newell D. A.
Reese W. D.
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