Humidification compression desalination

• A new process with higher efficiency is synthesized and developed.
• By combination of well-known processes the efficiency of HDH systems was increased.
• The water recovery from humid air is carried out by use of a polytropic compressor.

In this communication, a new Humidification De-Humidification process desalination technology is identified which has some advantages (such as: high energy performance, high recovery flow rate, energy recovery and so on) in comparison with other similar methods; this technology is named “Humidification Compression”. This method is simulated by a commercial process simulation software and the results are compared with two conventional methods. It is seen that, gain output ratio (GOR) for proposed method is higher than conventional methods; also capital cost per product for proposed method is lower than two others.