I want to open a biodiesel production foreman, but not too much what about biodiesel, please insiders explain to me the specific operation. Thank you!
(3) the transesterification reaction: the pretreatment of oil and methanol, adding a small amount of NaOH catalyst for ester exchange reaction at a certain temperature and pressure, which can be generated by the two step reaction, methyl ester, glycerin produced by a specially designed separator continuously removed in the first reaction, the ester to exchange reaction.(4) gravity sedimentation, washing and stratification.(5) separation of glycerol and acquisition of crude methyl esters.(6) the release of water, the release of methanol, the removal of catalyst and the production of refined biodiesel.
(2) pre esterification of methanol: firstly, the oil is hydrated, and the floc formed by the hydration of the phospholipids and the gum is removed by the centrifuge, and then the oil is dehydrated. In the presence of acid catalyst, the raw oil was added to the excess of methanol, and the free acid was converted into methyl ester. The methanol water was distilled, and the free fatty acids were separated into C12-16 methyl palmitate and C18 methyl oleate
(1) physical refining: first of all, the oil hydration or phosphoric acid treatment, remove the phospholipids, glial and other substances. The oil preheating, dehydration and degassing in deacidification tower, maintain the residual pressure, the excess steam in the steam temperature, steam distillation and free acid together by condensation, precipitation, remove the outside net loss of free fatty acids, free fatty acids in the oil can be reduced to a very low amount of pigment, can also be the light color of decomposition. All kinds of waste DYD catalyst of vegetable oil in the independent research and development, by esterification, alcoholysis reaction process and generate crude fatty acid methyl ester.
Production process of biodieselBiodiesel is an alternative diesel fuel consisting of fatty acids from vegetable oils or animal fats. At present, most biodiesel is produced from soybean oil, methanol and an alkaline catalyst (Che). However, most of the cheap oil that is not easily digested by the human body can be converted into biodiesel.
