Degassing Boiler Feed Water in China with Liqui-Cel® Membrane Contactors
ShenLan Environment Inc., located in Shanghai, China, uses Liqui-Cel® Membrane Contactors in their boiler feed water treatment systems. These systems realise lower operating costs, with the added benefit of reducing the chemicals added to the boiler feed water.
Proper treatment of boiler feed water is an important component of a boiler system. As steam is produced, dissolved solids become concentrated and deposit inside the boiler.
This leads to poor heat transfer and efficiency reduction of the boiler. Dissolved gasses, such as oxygen and carbon dioxide, will react with the metal surfaces inside the boiler, promoting corrosion.
Degassing is an important step for protecting the boiler. Liqui-Cel Membrane Contactors offer many advantages over forced draft de-aerators, vacuum towers and chemical treatment programmes for feed water treatment.
Membrane Contactors utilise microporous membranes to create ten times the surface area, compared to mechanical technologies. Contactors are highly-efficient, compact and can be used inline under pressure.
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