Biodiesel microfiltration membrane separation technology with low operation pressure, high efficiency and energy saving, environmental pollution-free advantages, has become a modern membrane separation method of the most widely application scope.
Research shows that phosphatide, soap and glycerin in biodiesel that can aggregate to form micelles, the micellar apparent molecular weight than fatty acid methyl ester, so when using membrane microfiltration crude biodiesel, phospholipids, soap and glycerin trapped, and the fatty acid methyl ester through the membrane.
Microfiltration membrane separation, biological diesel oil refining technology refers to the organic solvent resistance, stable chemical properties of ceramic membrane microfiltration directly promote prepared from palm oil biodiesel, the results show that when the ceramic membrane pore size of 0.1 mu m, when the concentration ratio of 4:1 membrane flux can maintain in the 300 l / ㎡. (h), membrane flux stability. Microfiltration free glycerol content in the total filtration liquid up to the European biodiesel standard (EN 14214). Ceramic membrane microfiltration method of
biodiesel equipment technology can effectively remove traces of soap in biodiesel crude product, free glycerin, lecithin and methanol. Compared with traditional biodiesel refining method, ceramic membrane microfiltration method without washing step, has simple process, low energy consumption, no secondary pollution.
