Method of and device for spontaneously distilling off secondary

Details Method of and device for spontaneously distilling off secondary Method of and device for spontaneously distilling off secondary

1976-06-07

1978-05-09

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Flash vaporization of distilland

203 92, 203DIG14, 202177, 202205, 202234, 260428, B01D 306, B01D 338, C11B 314

Patent

active

040885429

ABSTRACT:
Unwanted contaminants or by-products of oily streams can be removed by distillation at reduced pressure and elevated temperatures using an ancillary distilling agent which lowers the boiling temperatures of the impurities. The efficiency of such removal is enhanced by the formation of a true solution of the ancillary agent in the oily stream at the molecular level. To bring about this solution, the ancillary agent in the superheated gaseous state is brought into intimate contact with the oily stream in a mixing vessel or contactor at substantially equal pressures but at slightly differing temperatures. The oil temperature is such as to cause condensation of the ancillary agent, but not to significantly cool the oil.

REFERENCES:
patent: 2224926 (1940-12-01), Potts et al.
patent: 2478089 (1949-08-01), Clayton
patent: 3470070 (1969-09-01), Heckart

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