Iran-Made Nano-Based Cellulose Filters Improve Performance of Turbines

The cellulose depth filters for turbine oil purification is one of the knowledge-based products made with the support of the Nanotechnology Development Headquarters of the Iranian Vice-Presidency for Science, Technology and Knowledge-Based Economy, which is used to remove varnish from turbine lubricating oils, hydraulic oils, gear oils and transformer oils.

Cellulose depth filters are among the conventional filters in turbine oil purification, and the presence of nanofibers in these filters improves the efficiency of varnish removal from oil.Considering the fact that the existing filters are made of paper, cellulose filters also decrease paper consumption.

Capability of pressure drop at a level close to paper filters, reduction of consumer cost by at least 10 times, absorption of water, varnish and compounds resulting from oil oxidation, capability of production based on pressure drop and filtration accuracy required by the customer and chemical resistance against organic solvents, acids and weak bases are among the main specifications of the technological product.

Depth type composite filters are used to remove contaminants from liquids by combining mechanical entrapment and adsorption.

Commonly, depth filters can adsorb either anionic or cationic charged contaminants, but not both, as well as filter micron-sized particles. Therefore, there is still a need to improve the existing depth filter performance.

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