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US 6,441,252 B1Granted
Apparatus for producing phenol using reactive distillation
AssigneeExxonMobil Chemical Patents Inc.
InventorsDoron Levin, Jose G. Santiesteban
Life of this patent
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Abstract
An apparatus for producing phenol and acetone from cumene hydroperoxide comprises a reactive distillation column comprising at its upper portion a distillation column and at its lower portion a catalyst bed.
Claims6
An apparatus for preparing phenol from cumene hydroperoxide which comprises
- a) a reactive distillation column comprising at its upper portion a distillation column and its lower portion a catalyst bed;
- b) a lower outlet downstream of the catalyst bed for removing high boiling bottom products comprising phenol;
- c) an inlet at or near the bottom of said distillation column for introducing cumene hydroperoxide feed at a point upstream of said catalyst bed;
- d) an upper outlet for removing low boiling overhead products comprising acetone;
- e) a heat exchanger for cooling said overhead products;
- f) an overhead products receiver for receiving cooled overhead products from said heat exchanger, having an outlet from which said overhead products are collected and/or returned to said distillation column;
- and
- g) overhead products inlet at an upper portion of said distillation column for introducing overhead products reflux from said receiver.
5 more elements
Dependencies are inferred from the claim text.