Study On Lipase-catalyzed Preparation Of Waste Cooking Oil For Biodiesel

With the development of society and the increase of the population in the world, the limited energy is consumed greatly day by day. For our country, an energy consumption one, was already faced with the shortage of the energy and the problem has threatened our national stabilization and safety. Meanwhile, owing to the consumption of the petrifaction fuel, the ecological environment was aggravated and the sustainable development of national economy and society was inhibited. Therefore, it is an urgent time to develop a kind of substitute fuel. The biodiesel is such a substitute fuel which is renwable and clean.The biodiesel was got by the alcoholysis ester interchange reaction between natural animal ,vegetable oils and low carbon alcohol such as methanol and ethanol with the addition of accelerant, the bases of the biodiesel was aliphatic acid methyl ester or ethyl ester. It has many advantages compared with the putrescence fuel, such as its non-poisonous, biodegradable, renewable and cleaness.Nowadays, the biodiesel was developed and popularized in many occident countries, some biodiesel production plants were also built, and it was supported on the policy. However, the case inside has just been in the beginning.