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Membrane Filter Press Manufactured By Safi Sazan Safa Company

Application of Membrane filter press in oil refinery

Filter presses are widely used in the degreasing and refining of edible oils, such as the removal of stearin from palm oil. With the improvement of people’s living standards, the quality of edible oil has increased. Fat-free edible oil is more beneficial for people’s health, because saturated fatty acids make people fat and cause vascular diseases. So what is degreasing? Simply put, it is an oil refining process to remove stearin.

Currently, the most widely used degreasing equipment in the oil refinery is the automatic membrane filter press. Our filter press is specially designed for oil refineries. It combines various functions: membrane pressure, hidden open flow discharge, oil washing, air blowing, anti-static design, etc. The comprehensive use of these functions greatly improves the production efficiency of an oil refinery.

Membrane Filter Press Manufactured By Safi Sazan Safa Company
Membrane Filter Press Manufactured By Safi Sazan Safa Company

how it works? First, due to the different melting points of different stearins (fatty acid triglycerides), the crude oil is cooled in the crystallization tank at a low temperature, so that stearin with a high melting point can be crystallized. Then the oil is pumped into the diaphragm press filter. Inside the machine, the clear edible oil is drained through the filter cloth and the semi-solid stearin is blocked inside. After that, the membrane filter plates are inflated by high pressure compressed air. At the same time, the filter cakes are further compressed. In this way, the separation of the oil ends. Due to the high viscosity of stearin, it is necessary to use hot oil to wash the filter screen and filter cloth to regenerate the filter cloth. This dry extraction process by our membrane filter press is suitable not only for palm oil, but also for other oils such as sesame oil, corn oil, rapeseed oil, etc. This technology can improve liquid oil recovery rates, most importantly, it brings commercial benefits to oil refineries.

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