Thermo-compression distillation

Various methods from evaporation to distillation and chemical treatment may be employed for producing fresh water from sea water and other salty water sources. The different types of technology anployed include multi-stage flash distillation, thermo-compression distillation, reverse osmosis and reverse electrodialysis. 

Part of the vapour produced in the fourth stage is drawn up at 46 C and 0.10 bar by the thermo-compressor, which compresses it with high pressure steam at 0.22 bar to feed the first stage. The condensed vapour from each evaporator stage and from the condenser stage is extracted by a pump to form the product water. Thermo-compression distillation plants can produce very pure water from any sea water or brackish source without a complex pretreatment or filtration. 

MARS IV Multi-effect distillation (MED) or thermo-compression... 

The SCOR is mainly developed for electricity generation, providing competitive costs compared with large sized reactors through system simplification and compactness in plant layout. However, the SCOR may be used in cogeneration schemes like seawater desalination using low temperature processes, such as thermo-compression or multi-effect distillation. 

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