QUA wins electrodeionization deal
QUA has won a contract to supply its fractional electrodeionization (FEDI) technology for reverse osmosis (RO) permeate polishing at a major liquified natural gas (LNG) plant on the Texas-Louisiana border.The project is the third phase of expansion to supply water to Cheniere Energy's addition of liquefaction services to its Sabine Pass LNG terminal. It will add 30% to the capacity of the water plant, taking the flow rate to 951m³/hr making it one of the largest electrodeionization systems installed in the world, QUA claimed. FEDI was deployed in the previous two phases.
The water is used for compressor turbines for methane, propane and ethylene; wash water for gas turbines and other utility make-up uses. These processes demand that the local utility feed water to the terminal receives further treatment to produce high purity water with low conductivity and silica content.
"This project is a great showcase for the dual voltage fractional electrodeionization process. It really demonstrates on a large scale how well the technology can perform downstream of a single pass RO system," said QUA's director of sales and marketing, Fred Wiesler