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US 2001/0054571 A1Published application
Cycle oil conversion process
AssigneeExxonMobil Research and Engineering Company
InventorsGordon F. Stuntz, George A. Swan III, William E. Winter
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Abstract
The invention relates to a process for converting cycle oils produced in catalytic cracking reactions into olefinic naphthas. More particularly, the invention relates to a process for hydroprocessing a catalytically cracked light cycle oil, and then re-cracking in an out-board FCC reactor it in order to form a naphthenic blend-stock.
Claims13
A catalytic cracking method, comprising:
- (a) catalytically cracking a primary feed in a first catalytic cracking unit under catalytic cracking conditions in the presence of a first catalytic cracking catalyst in order to form a cracked product;
- (b) separating at least a cycle oil from the cracked product and hydroprocessing at least a portion of the cycle oil in the presence of a catalytically effective amount of a hydroprocessing catalyst under hydroprocessing conditions in order to form a hydroprocessed cycle oil;
- (c) conducting the hydroprocessed cycle oil to a second catalytic cracking unit;
- and
- (d) cracking the hydroprocessed cycle oil under cycle oil catalytic cracking conditions in the presence of a second catalytic cracking catalyst in the second catalytic cracking unit in order to form a second cracked product.
2 more elements
Dependencies are inferred from the claim text.