System and method to partially vaporize a process stream by mixing the stream with a heating medium
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United States of America Patent
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Jun 25, 2019
Grant Date -
Dec 28, 2017
app pub date -
Jun 27, 2016
filing date -
Jun 27, 2016
priority date (Note) -
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Abstract
A system and method to partially vaporize a process or feed water stream does so in a liquid pool zone of a vessel as the stream comes into contact with a heating medium that is less volatile than the process stream. To keep the pool hot, the heating medium can be recirculated through a heater of a pump-around loop or a heater can be placed in the liquid pool. As the process stream is partially vaporized, any solids present in the process stream together with the unvaporized process or feed water stream move into the heating medium. These solids and unvaporized liquids may be further removed from the heating medium in the pool or in the pump-around loop. The vaporized process stream can be further condensed. Any heat recovered can be used to pre-heat the process stream or in the pump-around loop's heater in case of mechanical vapor recovery.
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