Title:
【発明の名称】芳香族化合物アルキル化方法
Document Type and Number:
Japanese Patent JP3028333
Kind Code:
B2
Abstract:
A process for the catalytic distillation production of alkylated aromatic compounds is provided wherein the vapor pressure of the olefin may be increased while maintaining the same olefin feed rate and aromatic to olefin ratio. In one embodiment a side stream from the vapor from the second column below the catalyst and olefin feed is condensed and rerouted to the aromatic make up stream from the reflux drum. The vapor pressure of the olefin in the lower end of the first column in the catalyst bed is thus increased which increases the equilibrium concentration of the olefin in the liquid phase. In another embodiment of the invention the effective driving force for the reaction is increased by injecting the olefin at different heights within the catalyst bed. If additional olefin is injected more catalyst bed height would be required, but the additional catalyst is more that offset by the increased throughput at the same overall olefin conversion. The practice of injecting the olefin feed at different heights is especially useful when the same olefin feed rate is used but split among the several streams because less catalyst is required.
Inventors:
Angel sea
Application Number:
JP29455691A
Publication Date:
April 04, 2000
Filing Date:
November 11, 1991
Export Citation:
Assignee:
Catholic Distillation Technologies
AB LUMAS Global Inc.
AB LUMAS Global Inc.
International Classes:
C07C2/70; B01D3/00; C07B37/02; C07C2/66; C07C15/00; C07C15/073; (IPC1-7): C07C2/66; C07C15/073
Domestic Patent References:
| JP61161230A | ||||
| JP383120B1 |
Attorney, Agent or Firm:
Kazuo Shamoto (6 outside)