Distillation: processes – separatory – Adding material to distilland except water or steam per se – Organic compound
Patent
1992-07-22
1993-08-10
Bascomb, Jr., Wilbur
Distillation: processes, separatory
Adding material to distilland except water or steam per se
Organic compound
203 78, 203 84, 202154, 585808, 585860, 585865, B01D 340, C07C 708
Patent
active
052345530
ABSTRACT:
Process for obtaining a pure hydrocarbon from a starting material containing the hydrocarbon including performing an extractive distillation of the starting material containing the hydrocarbon in an extractive distillation column using a solvent comprising an N-substituted morpholine having substituents with no more than seven carbon atoms; feeding the sump product of the extractive distillation column into a distillation separator column at an entry point in a center portion of the distillation separator column; distilling off the hydrocarbon from the top of the distillation separator column but advantageously returning a minor portion of it as a reflux; drawing off solvent from the sump of the distillation separator column; feeding the solvent drawn off from the sump of the distillation separator column into an evaporator to form a vapor in the evaporator at the pressure, p.sub.2, the pressure p.sub.2 in the evaporator being lower than the pressure p.sub.1 in the sump of the distillation separator column; condensing the vapor formed in the evaporator to form a condensate, feeding the condensate back to the distillation separator column and drawing off solvent as a liquid solvent from the sump of the evaporator and feeding back the liquid solvent to the extractive distillation column.
REFERENCES:
patent: 3232850 (1966-02-01), Renberg et al.
patent: 4201633 (1980-05-01), Paret et al.
patent: 4664783 (1987-05-01), Preusser et al.
patent: 4776927 (1988-10-01), Emmrich et al.
Kaiping Martin
Klaumunzner Udo
Schneider Hans-Christoph
Vollmer Hans-Jurgen
Bascomb, Jr. Wilbur
Krupp Koppers GmbH
Striker Michael J.
LandOfFree
Process for obtaining a pure hydrocarbon from a sump product of does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for obtaining a pure hydrocarbon from a sump product of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for obtaining a pure hydrocarbon from a sump product of will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1722831