Automatic adsorption tower switching system

Details Automatic adsorption tower switching system Automatic adsorption tower switching system

1993-10-04

1995-04-11

Spitzer, Robert

Gas separation: processes

With control responsive to sensed condition

Concentration sensed

95132, 95143, 96111, 96133, 210662, 210690, B01D 5304

Patent

active

054054311

ABSTRACT:
In a continuous adsorption process using dual towers for separation of a multi-component feed with one tower active and the other on regeneration, automatic switching of the tower feed based on loading of a hydrogen fluoride (HF) component in the active tower is achieved by inferring HF loading based on concentration measurement of acid soluble oil (ASO). An optimum switching point, which switches tower feed near full HF capacity of the active tower but before HF breakthrough occurs, is based on calculating a second derivative for a concentration vs. time curve of ASO in the active bed effluent.

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