Title:
擬似移動床吸着からの改良された生成物回収方法
Document Type and Number:
Japanese Patent JP4871887
Kind Code:
B2
Abstract:
Product purity from or capacity of a simulated-moving-bed adsorptive separation process is increased by flushing the contents of the transfer line previously used to remove the raffinate stream away from the adsorbent chamber, preferably into the raffinate column used to separate desorbent from raffinate product. Preferably a stream from the adsorbent chamber at an intermediate point between the feed entry point and raffinate withdrawal is used as the flushing liquid. This flush step eliminates the passage of a quantity of the raffinate material into the adsorbent chamber in the transfer-line flush period or when the process conduit is subsequently used to charge the feed stream to the adsorbent chamber.
Inventors:
Frey, Stanley Jay.
Application Number:
JP2007558146A
Publication Date:
February 08, 2012
Filing Date:
March 01, 2006
Export Citation:
Assignee:
UOP LLC
International Classes:
B01D15/00; C07B57/00; C07B63/00; C07C7/12; C07C13/02; C07C15/00; C07C15/08
Domestic Patent References:
| JP2000354703A | 2000-12-26 | |||
| JPS5011343B1 | 1975-04-30 | |||
| JPS4317643B1 |
Attorney, Agent or Firm:
Igarashi Kazutoshi