my country is a country rich in coal, less oil, and gas. The development of bio-liquid fuels will not only promote the diversification of energy structure, but also promote the use of clean energy to improve the environment. Among them, biodiesel is given high hopes. The raw material of biodiesel in China is mainly "gutter oil" and other kitchen waste oils, which is of great significance to people's livelihood. However, biodiesel has been developed in China for 10 years, but it is still unable to enter the circulation field, and the industry is gradually in trouble.

Recently, the national development and Reform Commission and other 15 departments jointly issued the implementation plan on expanding the production of biofuel ethanol and promoting the use of vehicle ethanol gasoline, which clearly promotes the use of vehicle ethanol gasoline nationwide, and basically achieves full coverage in 2020. One stone stirs up a thousand waves. Industry insiders believe that the country should refer to the promotion of ethanol gasoline and introduce a mandatory biodiesel addition policy as soon as possible to realize the promotion and application of biodiesel in petrochemical diesel.

At the same time, "a closed application demonstration zone for the biodiesel industry should be established as soon as possible to realize the seamless connection of the utilization of' gutter oil', the allocation of refinery links, and the forced addition of biodiesel for sales in the closed area, so as to achieve the win-win goal of food safety and emission reduction and haze reduction." National biodiesel industry technology innovation strategic alliance director Lu Bo said. Meaning: to ensure "safety on the tip of the tongue" to solve the "pain of breathing".

Biodiesel is a renewable liquid fuel produced from waste oils and oil crops such as "waste oil". It has the characteristics of high cetane number, non-toxicity, low sulfur, degradable, and no aromatic hydrocarbons. It can be mixed with petrochemical diesel. Used or directly replaced, it is a typical green and environmentally friendly renewable energy.

At present, the raw materials of biodiesel in my country are mainly the recycling of kitchen waste such as "waste oil", which is of great significance to people's livelihood.

First of all, the promotion and use of biodiesel can solve the problem of "gutter oil" returning to the table and ensure "safety on the tip of the tongue". One of the main harmful substances contained in "waste oil"-aflatoxin is a recognized strong carcinogen, and its toxicity is 100 times that of arsenic. Another type of "waste oil", "swill oil", contains styrene-propylene ratio, which is also a highly toxic carcinogen. However, after "waste oil" has undergone "washing, distillation, decolorization, deodorization" and other technological processes, it is difficult to distinguish whether it is "waste oil" or blending edible oil in appearance.

Zhu Jianjun, director of the Industrial Research Department of the Industrial Development Department of the China Petrochemical Federation, said that biodiesel can be mixed with petrochemical diesel in any ratio, which can realize the centralized and large-scale utilization of waste oils such as "waste oil", which is to prevent "waste oil" from returning to the table., And the best choice to "turn waste into treasure. "'gutter oil' must be used on the car body, not on people." National biodiesel industry technology innovation strategic alliance director Lu Bo said. Secondly, the promotion of the use of biodiesel can solve the problem of diesel vehicle emission pollution.

According to the Ministry of Environmental Protection's "China Motor Vehicle Pollution Prevention and Control Annual Report (2015)", "Diesel vehicle pollution emissions are the main source of PM2.5 and other pollutants. Although diesel vehicles only account for 14.1 of the car ownership, their nitrogen oxides (NOX) and particulate matter (PM) emissions account for more than 69.2 and 99% of the total vehicle emissions. Therefore, it is also urgent to solve or reduce the problem of diesel vehicle emission pollution. Compared with petrochemical diesel, the emission of toxic organic compounds in automobile exhaust using biodiesel is only 10% of that of ordinary diesel, the particulate matter is 20% of that of ordinary diesel, and the emission of carbon monoxide and carbon dioxide is only 10% of that of fossil diesel. At the same time, there is no emission of toxic substances such as sulfide and lead.

At the same time, biodiesel does not contain aromatic compounds that pollute the environment, and the damage of combustion exhaust gas to the human body is lower than that of petrochemical diesel, and its biodegradability is as high as 98%, and the degradation rate is twice that of ordinary diesel, which can greatly reduce accidental leakage. Environmental pollution. Therefore, mixing "gutter oil" into biodiesel and petrochemical diesel into vehicle fuel can solve the problem of "gutter oil" returning to the table and help reduce emissions and haze.