Fractionation to remove a high-boiling material and a dissolved substance
Patent
·
OSTI ID:7119796
An improved method is described 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 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. 5 claims, 1 figure.
- Assignee:
- Universal Oil Products Co.
- Patent Number(s):
- US 4008150
- OSTI ID:
- 7119796
- Country of Publication:
- United States
- Language:
- English
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