Distillation: processes – separatory – Distilling to separate or remove only water – From organic compound
Reexamination Certificate
2005-12-28
2010-02-23
Manoharan, Virginia (Department: 1797)
Distillation: processes, separatory
Distilling to separate or remove only water
From organic compound
C203S041000, C203S073000, C203S087000, C203S088000, C203S091000, C210S664000, C426S494000, C435S161000, C568S913000, C568S916000
Reexamination Certificate
active
07666282
ABSTRACT:
The invention is a process for the purification of ethanol. In one embodiment the process includes boiling a degassed beer feed (106) in a pre-boiler (110) to provide a vapor by-pass fraction (112) that by-passes the conventional beer column and is fed into the rectifier column (124). The process allows free capacity in the rectifier column of new or established plants to be filled by ethanol-water vapor and/or condensate streams that do not originate from the beer column.
REFERENCES:
patent: 4217178 (1980-08-01), Katzen et al.
patent: 4422903 (1983-12-01), Messick et al.
patent: 4568356 (1986-02-01), Chambers
patent: 4867997 (1989-09-01), Wiesenberger et al.
patent: 4983304 (1991-01-01), Tsugita et al.
patent: 5955135 (1999-09-01), Boucher et al.
patent: 7297236 (2007-11-01), Vander Griend
patent: 8703445 (1989-01-01), None
patent: 112503 (1993-11-01), None
patent: WO 2004/088230 (2004-10-01), None
Aden et al., Lignocellulosic Biomass to Ethanol Process Design and Economics Utilizing Co-Current Dilute ACD Prehydrolysis and Enzymatic Hydrolysis for Corn Stover, NREL Report No. TP-510-32438, Section II.5, p. 36-39.
P. W. Madson et al., Fuel Ethanol Production in Fuel Alcohol Textbook, Alltech Inc., 1999, Chapter 17, pp. 257-268.
D. R. Garg et al., Molecular Sieve Dehydration Cycle for High Water Content Streams, CEP, Apr. 1983, pp. 60-65.
Michael R. Ladisch et al., Cornmeal Adsorber for Dehydrating Ethanol Vapors, I&EC Process Design & Development, 1984, vol. 23:437.
S. Skouras et al., Time (Energy) Requirements in Closed Batch Distillation Arrangements, Computers & Chemical Engineering, vol. 28:829-837, 2004.
Breske Stephen Thomas
Culver David A.
Sylvester Robert G.
Vrana Bruce M.
E.I. du Pont de Nemours and Company
Manoharan Virginia
LandOfFree
Process for providing ethanol 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 providing ethanol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for providing ethanol will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4213518