Thermal softening process

Details Thermal softening process Thermal softening process

1983-05-09

1985-05-21

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

166303, 203 11, 210737, 210794, C02F 152, C02F 166

Patent

active

045185050

ABSTRACT:
A process for heating and softening of hard water by direct heat exchange with steam. The steam is directly sparged into the hard water within a reaction zone and condensed in the water under a pressure sufficient to prevent boiling at the reaction zone temperature. The heated water is then withdrawn from the reaction zone without substantial vaporization of water and filtered to remove scale precipitates resulting from the heating step. At least a portion of the softened water may be heated to generate wet steam which is then recirculated to the reaction zone and sparged into the hard water therein.

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"New Steam Generator Uses Brackish Water", The Oil and Gas Journal, Jun. 13, 1966, pp. 54-55.
Hull, "The Thermosludge Water Treating and Steam Generation Process", J. Petrol. Tech., Dec. 1967, pp. 1537-1540.
Lawrence-Allison Associates Corp., "Thermosludge", pp. 1-31.
Betz Handbook of Industrial Water Conditioning, 1945, pp. 21-144.

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