Method and apparatus for fractionating hydrocarbon crudes
A distillation method is described comprising: introducing heated hydrocarbon feed into a first distillation zone of a vacuum distillation means having first and second distillation zones physically separated from each other by divider means to cause a first separation of the feed into a descending liquid portion and an ascending vapor portion substantially all of the separated descending liquid remaining in the first distillation zone; withdrawing at least part of the liquid from the first distillation zone; reheating the withdrawn liquid portion; and introducing the reheated liquid portion into a second distillation zone which is part of the same distillation column as the first distillation zone, to cause a second separation of the reheated liquid portion into a descending liquid portion and an ascending vapor portion substantially all of the reheated, separated descending liquid remaining in the second distillation zone.
- Assignee:
- Mobil Oil Corporation, New York, NY
- Patent Number(s):
- US 4664784
- OSTI ID:
- 6532796
- Resource Relation:
- Patent File Date: Filed date 14 Feb 1986
- Country of Publication:
- United States
- Language:
- English
Similar Records
Aromatic hydrocarbon separation via solvent extraction
Energy saving heavy crude oil emulsion treating method and apparatus for use therewith