Article by Double

Although now our country don’t have a recycling waste oil regulations, many researchers have re-used of waste oil to start the technical research, and have achieved certain results.

Trick one: production of biodiesel

Biodiesel industry is a promising applications in one direction of waste oil. Producting and processing of the waste oil to be biodiesel with energy efficiency, both consume a lot of waste oil, but also ease the tense oil supply situation. It is understood that a company in Fujian Province has self-developed technology and equipment from the waste of animal and vegetable oils to biodiesel and successfully extracted, and first in China to realize industrialization. According to experts, waste oil added to the reaction tank, through a slightly acidic catalyst technology, make the alcoholysis and esterification can happen at the same time, the reaction rate is significantly accelerated. In addition, through a metal salt treatment agent to address the use of waste oil to produce diesel plant and animal residues problem of high acid value. The most important feature of this fuel is that it has good environmental protection, after using the diesel car the exhaust emissions is without sulfur dioxide, and hydrocarbons and carbon monoxide are greatly reduced.

Trick two: Production of Beneficiation reagent

Data shows that Beijing University of Technology Department of Environmental Engineering Professor Wang Huajun, who has successfully developed the “waste oil” pharmaceutical preparation of the comprehensive utilization of mineral processing technology that can make use of “waste oil” production for the beneficiation of fatty acids and fat, sodium, and production process is almost no secondary pollution. According to reports, fatty acids, iron ore, fluorite, apatite ore and other mineral commonly used collector, the general dosage is 0.5 kg per ton of ore. According to rough estimates, the country needs fatty acids ore flotation collector for the year from 500,000 to 800,000 tons. Preparation of fatty acids on the traditional process mainly is through chemical synthesis. In recent years, with increased costs, the preparation of selected waste to fatty acids have caught more attention. Currently in the use of waste raw materials to take mineral fatty acid collector of the study, the use of raw materials are refined vegetable oil, acid oil production in abandoned oil foot material or intermediate product. As the “waste oil” is mainly from the catering waste oil, composed mainly of fatty acid glycerides, if they can use their fatty acid collector for the preparation, can reduce pollution and comprehensive utilization of double effect. And the technology for further research and application is essential to avoid environmental pollution, reduce dressing costs, reduce threats to food security and other aspects will be important.

Trick Three: Production of ethanol, biogas

Barrels of swill get through the oil water separator,part of turned into biodiesel, the other part continues to ferment into ethanol and biogas, and the remaining residues are all converted into fertilizer. Institute of Plasma Physics, Chinese Academy of Sciences researchers after years of technology research, successfully mastered the kitchen waste to produce ethanol and biogas energy and disposal technologies, and got two patents. It is understood that the technology will transform kitchen waste as four “Baby”, that is, bio-diesel, ethanol, biogas and bio-fertilizer. Kitchen waste oil first get through the oil water splitter to become bio-diesel, and other components carbohydrate and protein through the process of digestion and anaerobic fermentation into fuel ethanol, the ethanol fermentation residues and other organic compounds produced by fermentation methane, the biogas residue slurry by processing become into bio-fertilizer.