Distillation: processes – separatory – Distilling to separate or remove only water – From organic compound
Patent
1978-05-30
1982-06-01
Yudkoff, Norman
Distillation: processes, separatory
Distilling to separate or remove only water
From organic compound
202180, 202176, 159DIG10, C07C 2926
Patent
active
043326439
ABSTRACT:
A method of removing water from a mixture of glycol and water comprises introducing a feed mixture of glycol and water to a distillation column, and collecting a first concentrated glycol-water liquid as still bottoms. The first concentrated liquid is then conveyed to a reboiler where a portion of that liquid is vaporized to form a reboiler vapor and a second concentrated glycol-water liquid. The reboiler vapor is returned to the still for intimate contact with the feed mixture of glycol and water in the distillation column. The second concentrated liquid is then conveyed to a water exhauster at a temperature and pressure such that an equilibrium vapor of said second concentrated liquid, at said conditions, has a glycol/water weight ratio of at least 0.54. At this condition, a portion of the second concentrated glycol-water liquid is vaporized in the water exhauster to form a third concentrated glycol-water liquid and an equilibrium vapor in contact with the third concentrated liquid. A portion of the equilibrium vapor is then condensed and the condensate is removed from the exhauster to allow for further vaporization of said third concentrated liquid, thereby increasing the glycol percentage of said third concentrated liquid. In a second embodiment of the present invention the feed mixture to the distillation column is preheated such that the feed liquid has an equilibrium vapor glycol/water weight ratio of 0.54. In this second embodiment of the present invention, the reboiler is unnecessary.
REFERENCES:
patent: 2750331 (1956-06-01), Meyers
patent: 3105748 (1963-10-01), Stahl
patent: 3589984 (1971-06-01), Reid
patent: 3824177 (1974-07-01), Honerkamp et al.
LandOfFree
Method of removing water from glycol solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of removing water from glycol solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of removing water from glycol solutions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1848282