Process for recovering heat in distillation process

Distillation: processes – separatory – And recovering heat by indirect heat exchange – Utilizing recovered heat for heating feed

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203 23, 203 27, 203 98, 203DIG8, 203DIG9, 203DIG14, 203DIG19, 196134, 208353, B01D 314, C10G 700

Patent

active

042921406

ABSTRACT:
In a distillation process, the heats of distillates and bottom product are recovered to preheat the feed and to generate the steam of higher than 5 kg/cm.sup.2 G which in turn may be utilized to improve the distillation efficiency.

REFERENCES:
patent: 1744261 (1930-01-01), Cooke
patent: 1852184 (1932-04-01), Milliff et al.
patent: 1945581 (1934-02-01), Wallis
patent: 1947817 (1934-02-01), Wallis
patent: 2140450 (1938-12-01), Danforth
patent: 3079330 (1963-02-01), Stone
patent: 4025398 (1977-05-01), Haselden
patent: 4032412 (1977-06-01), Hoppe et al.

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