Fractionation to remove a high-boiling material and a dissolved

Details Fractionation to remove a high-boiling material and a dissolved Fractionation to remove a high-boiling material and a dissolved

1976-10-29

1978-04-04

Levine, Herbert

Mineral oils: processes and products

Fractionation

Distillation

208354, B01D 306, C01G 700

Patent

active

040826546

ABSTRACT:
An improved method of simultaneously removing high-boiling materials and a volatile dissolved substance, such as carbon dioxide or hydrogen sulfide, from a hydrocarbon stream as is performed in feed preparation columns. About 25 to 75 percent of the feed stream is vaporized in a flash zone, and the vapor stream from the flash zone is combined with the overhead vapor stream of a fractionation column. The liquid remaining after the flash operation is passed into a lower intermediate point of the fractionation column. The high-boiling materials are removed at the bottom of the column, and the product stream is removed from the fractionation column at a higher intermediate point.

REFERENCES:
patent: 2368497 (1945-01-01), Shipley et al.
patent: 3444052 (1969-05-01), Bracken et al.
patent: 4008150 (1977-02-01), Gewartowski

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