Solid-fluid contacting process

Details Solid-fluid contacting process Solid-fluid contacting process

1976-06-17

1978-04-18

Bascomb, Jr., Wilbur L.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 35, B01D 1506

Patent

active

040850420

ABSTRACT:
In a fixed-bed solid-fluid contacting process, wherein adsorption and regeneration are performed in countercurrent flow, a portion of contaminated solid particles in the bed is extracted from the bed for washing, simultaneously when a fluid is treated by passing through the bed. The solid particles extracted are washed and recycled to the bed at the time of other operations, for example, regeneration step. The process is improved in the time cycle of treatment which is shortened and the pressure loss which is decreased. The process is also free from disturbance of bed and excellent in treatment efficiency. A simple and compact apparatus is available for the process. Typical example of application is ion exchange reaction.

REFERENCES:
patent: 2855364 (1958-10-01), Roberts
patent: 3130151 (1964-04-01), Levendusky
patent: 3240699 (1966-03-01), Duff et al.
patent: 3459306 (1969-08-01), Kanamori et al.
patent: 3595784 (1971-07-01), Butterworth
patent: 3875053 (1975-04-01), Siegers

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