Cooling crystallizer

摘要

A system and method for separating at least a part of the solids from brine having an initial temperature T1, the system comprising a crystallizer comprising a crystallizer inlet for receiving therein said brine, a crystallizer first outlet for discharging vapor having a first pressure P1, evaporated from at least a part of said brine, and a crystallizer second outlet for discharging a slurry having a final temperature T2 lower than said initial temperature T1; a separator comprising a separator inlet for receiving therein said slurry, a separator first outlet for discharging therefrom said part of the solids separated from said slurry, and a separator second outlet for discharging therefrom a remaining liquid having a temperature substantially equal to T2; a compressor comprising a compressor inlet for receiving therein said vapor, and a compressor outlet for discharging therefrom a compressed vapor having a second pressure P2 higher than said pressure P1; and a condenser comprising a condenser first inlet for receiving therein said compressed vapor, a condenser second inlet for receiving therein said remaining liquid discharged from said separator, for absorbing a latent heat released from said compressed vapor, condensing thereby said compressed vapor, and a condenser outlet for discharging therefrom an outlet liquid having a temperature substantially equal to T1.

主权项

1. A method of separation of at least part of the solids from brine having an initial temperature T1, the method comprising: evaporating at least a part of said brine producing thereby a vapor stream having a first pressure P1 and a slurry having a second temperature T2 lower than said first temperature T1; separating said part of the solids from said slurry, producing thereby a remaining liquid having a temperature equal to T2, wherein said solids remain in a solid state; compressing said vapor thereby increasing its pressure from P1 to P2; condensing said compressed vapor by having said remaining liquid absorb a latent heat released from said compressed vapor and discharging an outlet liquid of temperature equal to T1, the method further comprising adding of secondary soluble solids to said condenser reducing thereby a compression pressure ratio P2/P1 required relative to its value without said addition.