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This project reports on the design, construction and operation of a special type of evaporator situated between the last effect and the barometric condenser of a multiple-effect evaporation plant for the production of sodium chloride. In this evaporator about 40% of the heat that is normally transferred at a low temperature level to the cooling water in the barometric condenser, can be used instead to concentrate the feed brine of the salt plant. This will result in a substantial energy saving in the evaporation of brine. The aim of the demonstration was to operate the evaporator for a long period on an industrial scale, coupled to an existing brine evaporation plant. The calculated steam savings should be realised at reduced pressure. It was also intended to show that this apparatus can be applied as a crystallizing evaporator, thus rendering it possible to construct evaporators that are generally less energy consuming.

Additional information

Authors: AKZO, Salt and Basic Chemicals Nederland BV, Boortorenweg 20, 7554 RS Hengelo (NL)
Bibliographic Reference: EUR 12107 EN (1989) FS, 17 pp., ECU 5
Availability: (2)
ISBN: ISBN 92-825-9959-0
Record Number: 198910928 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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