C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/04 (2006.01) B01D 47/06 (2006.01) B01D 53/14 (2006.01) C02F 1/00 (2006.01)
Patent
CA 2716686
Method and apparatus for producing high purity distillate in evaporators. The method and apparatus is useful for evaporation of waters where volatile silica compounds are encountered, and in cases where volatile organic compounds are encountered, such as in production of hydrocarbons from geological formations. An evaporator having a contaminant reduction system is provided. The contaminant reduction system includes an upflow first mist eliminator portion to remove entrained liquid droplets and produce an intermediate purity water vapor stream. A continuous spray system provides a spray of dilute caustic solution in a selected spray configuration for mass transfer contact with the passing intermediate purity water vapor stream, to remove volatile silica compounds therefrom, and produce a partially decontaminated steam stream having mist particles therein. An upflow second mist eliminator portion is provided to remove the residual mist particles, and produce a high purity water vapor stream. The high purity water vapor stream may be first compressed, but in any event is condensed to provide a high purity distillate stream.
Heins William F.
Wilson Gregg L.
Company General Electric
Craig Wilson And Company
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