Low-Energy Ejector Desalination System (LEEDS) is a newly developed innovative thermal desalination process that uses water driven multi-phase ejector instead of mechanical vapor compressor or blower in a mechanical vapor compression evaporator to recover water or distillate high saline water. The advantage of LEEDS is its lower energy consumption compared to conventional mechanical vapor compression (MVC) evaporators and other thermal desalination processes. Another advantage of the LEEDS is lower CAPEX and OPEX. The use of MPE ejectors and off-the-shelf motive pumps significantly reduces the CAPEX and reduces delivery period. Other applications of LEEDS are Minimal Liquid Discharge (MLD) and Zero Liquid Discharge (ZLD) facilities. This presentation describes the pilot test results when treating actual produced water from Permian Basin oil formation.

Low-energy ejector desalination system (LEEDS)

ACS Fall 2021

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