Absorption process method and apparatus

Details Absorption process method and apparatus Absorption process method and apparatus

1976-05-28

1978-09-05

Schwadron, Martin P.

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137389, 137395, 364118, 364500, 196132, 202160, 203 1, 203DIG18, F17D 301

Patent

active

041112180

ABSTRACT:
The flow rate of feed material containing a constituent to be absorbed and the flow rate of the absorption medium entering an absorption zone are controlled in response to the content and flow rate of feed material entering the absorption zone and the amount of a desired bottoms constituent in the overhead stream of the absorption zone so that the efficiency of the absorption process is optimized. Under circumstances necessitating maximum production from the absorption zone and its associated stripping zone, the absorption medium flow rate is maintained at a maximum value and the feed flow rate is controlled in response to feed composition and flow as well as the concentration of desired bottom product in the overhead stream. The output of the absorption unit is stabilized by alteration of the flow control apparatus associated with the output stream of the stripping zone in order to alter the amount of control over the output flow. A set point signal which controls the product output flow is generated in response to the predicted rate of delivery of product material to an accumulator and a modified signal related to the liquid level within the accumulator.

REFERENCES:
patent: 2476104 (1949-07-01), Mason
patent: 2976234 (1961-03-01), Webber
patent: 3050450 (1962-08-01), Kleiss et al.
patent: 3224947 (1965-12-01), Lupfer
patent: 3230154 (1966-01-01), Walker
patent: 3411308 (1968-11-01), Bellinger
patent: 3446709 (1969-05-01), Marshall
patent: 3449215 (1969-06-01), Johnson et al.

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