Process for degassing, dehydrating and precut separation in stra

Details Process for degassing, dehydrating and precut separation in stra Process for degassing, dehydrating and precut separation in stra

1983-10-05

1987-07-14

Bascomb, Wilbur

Distillation: processes, separatory

And recovering heat by indirect heat exchange

Utilizing recovered heat for heating feed

203 72, 203 78, 203 79, 203 80, 203 87, 203 93, 55 54, 55 55, 202159, 202179, 202186, 202198, 260419, B01D 338, C11C 110

Patent

active

046800921

ABSTRACT:
The invention concerns a process for the degassing, dehydrating and lower boiling component separation during straight-run distillation of crude fatty acids. The crude fatty acids are degassed in the degassing stage at such temperatures and pressures in counter current flow with stripping steam that no appreciable dehydration or lower boiling component separation takes place at this stage, then the degassed crude fatty acid is then led to a precut column for dehydration and lower boiling component separation, whereby the falling film concentrator column operates as a partial condensation stage for the creation of the reflux of the fatty acids, which is necessary for the lower boiling component separation, and that the easily boiling component evaporates almost completely in the precut column and is led off from the precut column in vapor form, together with the water.

REFERENCES:
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patent: 3197386 (1965-07-01), Lau
patent: 3607670 (1971-09-01), King
patent: 4089880 (1978-05-01), Sullivan
patent: 4394221 (1983-07-01), Stage et al.

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