Vacuum distillation process

Details Vacuum distillation process Vacuum distillation process

1990-02-09

1991-07-16

Manoharan, Virginia

Distillation: processes, separatory

With disparate physical separation

Of entrained particles from a vapor or gas

203 93, 203 94, 203 98, 203DIG9, 203DIG25, 203357, 203366, B01D 310

Patent

active

050322311

ABSTRACT:
In a vacuum distillation process a feed stream is supplied to a furnace and a heated feed stream containing vapor and liquid is passed from the furnace into a distillation column operating at a subatmospheric pressure. Vapor is allowed to rise inside the distillation column. The rising vapor is contacted with a de-entrainment means to remove entrained liquid from the rising vapor. Wash liquid is sprayed on the de-entrainment means and subsequently passed from the distillation column to a collection vessel. The wash liquid is cooled and then withdrawn from said collection vessel.

REFERENCES:
patent: 2664391 (1953-12-01), Coulter
patent: 3334027 (1967-08-01), Goeldner
patent: 3344042 (1967-09-01), Hardesty
patent: 3480515 (1969-11-01), Goeldner
patent: 3749647 (1973-07-01), Micklewright
patent: 4166773 (1979-09-01), Higley et al.
patent: 4323431 (1982-04-01), Takashashi et al.
patent: 4409064 (1983-10-01), Vora et al.
patent: 4568428 (1986-02-01), Rigg et al.
patent: 4938868 (1990-07-01), Nelson

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