Thermal softening and distillation by regenerative method

Details Thermal softening and distillation by regenerative method Thermal softening and distillation by regenerative method

1974-09-03

1977-04-19

Bernstein, Hiram H.

Distillation: processes, separatory

Water purification only

Under pressure or vacuum

203 80, 202173, 202234, 159 2MS, B01D 306

Patent

active

040186563

ABSTRACT:
A system for softening of water in a manner to minimize heat requirements in the water softener unit of the system. Flashed water vapor from a flash box coupled to the downstream end of the softener unit is used to preheat incoming hard feed water by directly contacting the feed water in respective preheating chambers upstream of the softener unit. The system is suitable for use in a distillation plant to produce potable water.

REFERENCES:
patent: 3329583 (1967-07-01), Othmer
patent: 3334024 (1967-08-01), Zahavi
patent: 3392089 (1968-07-01), Guptill
patent: 3401094 (1968-09-01), Lindsay
patent: 3514375 (1970-05-01), Dambrine
patent: 3607663 (1971-09-01), Vandenberg
patent: 3692634 (1972-09-01), Othmer
patent: 3697382 (1972-10-01), Porteous
patent: 3734835 (1973-05-01), Spicacci
patent: 3948734 (1976-04-01), Kohl

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