Distillation: processes – separatory – Water purification only – Under pressure or vacuum
Patent
1990-08-13
1992-08-18
Bascomb, Jr., Wilbur
Distillation: processes, separatory
Water purification only
Under pressure or vacuum
203 1, 203 22, 203 25, 203 26, 203 40, 203 72, 203 74, 203 80, 203 94, 203DIG14, 159 171, 159DIG22, 159 473, 165166, 202173, 202174, 202177, 202181, 202197, 202202, 202205, 202236, B01D 122, B01D 126, B01D 310
Patent
active
051396203
ABSTRACT:
Evaporation of saline water in a desalinization process, or evaporation of other types of liquid such as black liquor from paper pulp processing, is accomplished utilizing a multiple effect evaporator. Each effect includes one or more (e.g. first and second) sets of horizontally elongated dimpled plate evaporator elements. Horizontally flowing heating fluid, such as steam, is introduced to the internal passage of at least the second set in all the effects, and a head of circulation liquid is provided to cause liquid being evaporated to flow downwardly from the head over the external surfaces of the sets of dimpled plates in a thin film. The vapor evaporated is drawn through a demistor and is used as the heating fluid for the next effect. Recirculating liquid that has not evaporated and liquid separated by the demisting process are recirculated to the head associated with each effect. Clean condensate--such as distilled water--is withdrawn from the last effect. The liquid to be evaporated may be preheated by passing it through the first sets of dimpled plates countercurrent to the flow of vapor. A vapor compressor may be used to raise the temperature of the vapor withdrawn from the last effect and return it to the heating fluid inlet of the first effect.
REFERENCES:
patent: 1200996 (1916-10-01), Soderlund
patent: 2759882 (1956-08-01), Worthen et al.
patent: 3211219 (1965-10-01), Rosenblad
patent: 3251397 (1966-05-01), Lens
patent: 3512239 (1970-05-01), Rosenblad
patent: 3824154 (1974-07-01), Takada et al.
patent: 3824155 (1974-07-01), Takada
patent: 3849259 (1974-11-01), Steinbruchel
patent: 3868308 (1975-02-01), Barak et al.
patent: 3941663 (1976-03-01), Steinbruchel
patent: 4007094 (1977-02-01), Greenfield et al.
patent: 4217176 (1980-08-01), Antony
patent: 4511436 (1985-04-01), el Din Nasser
patent: 4673459 (1987-06-01), Elmore et al.
patent: 4712612 (1987-12-01), Okamoto et al.
Awerbuch et al., "Desalination Technology Report on the State of the Art", Bechel Group, Inc.
Kamyr, Inc. "Falling Film Evaporators", Bulletin No. KGD1807-ME0689.
The U.S.A.I.D. Desalination Manual, Chapter 3, "Distillation", 1980.
Elmore Carl E.
Infante Kyle
Bascomb, Jr. Wilbur
Kamyr Inc.
LandOfFree
Dimple plate horizontal evaporator effects and method of use does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dimple plate horizontal evaporator effects and method of use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dimple plate horizontal evaporator effects and method of use will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1246051