Fractionation to remove a high-boiling material and a...

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

B - Operations, Transporting

01

D

196/279, 202/84

B01D 3/06 (2006.01) C10G 7/02 (2006.01)

Patent

CA 1054554

ABSTRACT OF THE DISCLOSURE An improved method of simultaneously removing high-boiling materials and a volatile dissolved substance, such as oxygen, 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 vapour stream from the flash zone is combined with the overhead vapour stream of a fractionation column. The liquid remain- ing after the flash operation is passed into a lower intermed- iate point of the fractionation column. The high-boiling ma- terials are removed at the bottom of the column, and the pro- duct stream is removed from the fractionation column at a higher intermediate point.

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