Cogeneration Filtration

Process

Raw water is used to produce de-mineralised water as boiler feed water to generate steam. The purity of the water depends on the filtration efficiency of the filter and ion exchange system. Steam generated can be used for export or power turbines to generate electricity.

Since the condensate is at a higher temperature compared to the feed, it is usually recycled to minimize feed top up and energy costs. To maintain high quality, condensate is usually filtered to remove all possible contaminants. In addition, various filters can be used for natural gas / diesel / lube oil filtration to protect plant equipment from wear and tear.

Problem

Solid contaminants in the feed water cause many problems including:

• Fouling: Results in clogging of membrane surface, reducing removal efficiency, throughput volume and operation time. Increases maintenance cost for cleaning.
• Equipment damage: Particles in the steam will damage the turbine.

Suitable Products For Cogeneration Filtration:

Cogeneration Application Guide
Feature-Tec Filter Product	Application	Description
SAFTSAS Sand Filter	Raw Water Filtration	Automatic, self cleaning filter. Removes coarse, solid particles. Extends operation time of downstream filters.
JumboFSH	Condensate Filter	Depth filters (eg. cartridge filters) removes corrosive particles to protect downstream polishers. High dirt holding capacity or high flow rate types available.
Metal Cartridges	Steam	Protects turbine from corrosion particles