Furfural refining unit control system

Details Furfural refining unit control system Furfural refining unit control system

1978-06-05

1979-07-24

Serwin, R. E.

Mineral oils: apparatus

Solvent extraction

23230A, 364497, 364501, C10G 2100, C06G 758

Patent

active

041621972

ABSTRACT:
A system controls a furfural refining unit in which the furfural refining unit includes an extractor receiving furfural and charge oil, one of which is at a predetermined flow rate while the other flow rate is to be controlled and providing raffinate and extract mix. The control system includes sensors sensing the flow rate, the gravity, the viscosity, the flash point temperature, the refractive index and the sulfur content of the charge oil. Other sensors sense the flow rate of the furfural and the temperature of the extract mix. The signals from the sensors are provided to control apparatus which controls the other flow rate of the charge oil and the furfural flow rates in accordance with the signals from the sensors.

REFERENCES:
patent: 3799871 (1974-03-01), Sequeira, Jr.
patent: 3911259 (1975-10-01), Huddleston et al.
patent: 3972779 (1976-03-01), Harrison
patent: 4053744 (1977-10-01), Woodle

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