Feed heating method for multiple effect evaporators

Details Feed heating method for multiple effect evaporators Feed heating method for multiple effect evaporators

1975-03-07

1976-07-06

Sofer, Jack

Concentrating evaporators

Film type

Moving film

159 17R, 159 46, 202174, B01D 114, B01D 122, B01D 126, B01D 100

Patent

active

039680029

ABSTRACT:
A multiple effect evaporator in which the feed is progressively preheated in an indirect falling film preheater by vapors from the lower temperature effects and then further preheated by direct contact with vapors from higher temperature effects, said preheated feed being degassed during said direct contact preheating, prior to evaporation.

REFERENCES:
patent: 3119752 (1964-01-01), Checkovich
patent: 3303106 (1967-02-01), Standiford
patent: 3494836 (1970-02-01), Standiford
patent: 3702807 (1972-11-01), Newson et al.
patent: 3830704 (1974-08-01), Frank
patent: 3832289 (1974-08-01), Kays et al.

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