Fractional distillation column control

Details Fractional distillation column control Fractional distillation column control

1982-09-30

1985-07-16

Sever, Frank

Distillation: processes, separatory

With measuring, testing or inspecting

Of temperature or pressure

62 21, 203DIG18, 208DIG1, B01D 342

Patent

active

045294844

ABSTRACT:
A desired cloud point temperature for a side draw product stream from a fractional distillation column is maintained at a desired level by comparing a calculated actual cloud point temperature, which is updated periodically by a cloud point measurement, to a desired cloud point temperature with results of the comparison being utilized to control the flow rate of the side draw product stream so as to maintain the actual cloud point temperature of the side draw product stream substantially equal to the desired cloud point temperature. Use of the calculated cloud point temperature provides a means by which continuous control of the actual cloud point temperature of the side draw product stream can be maintained.

REFERENCES:
patent: 4289588 (1981-09-01), Hofferber

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