"my country's biodiesel production technology is internationally leading, and the national standards have also been in line with international standards. However, due to insufficient promotion and application, the current domestic biodiesel production is declining year by year. As the world's second largest economy, China's domestic biodiesel use scale is not only far It is not as good as Europe and the United States and other countries, and there is a considerable gap compared with Latin American countries such as Argentina.” On August 1, Lin Jianmin, a professor-level senior engineer at the Sinopec Petrochemical Research Institute, said at the inaugural meeting of the Biodiesel Branch of the Beijing Clean Fuel Industry Association. .

According to Lin Jianmin, my country's current national standard for biodiesel "B5 Diesel GB25199-2017" was released and implemented in September 2017. The two national standards were merged and further optimized and upgraded. The new standard is upgraded from the previous recommended standard to a mandatory standard. At the same time, the technical requirements and test methods of B5 automotive diesel (VI), that is, the sixth stage "B5 automotive diesel", are added, which are consistent with the national standards for automotive diesel (VI) and are also in line with the EU's sixth stage biodiesel standard. Consistent and exceed American ASTM standards.

In the past two years, the development momentum of biodiesel in the world has not diminished. According to public reports, global biodiesel production reached a record high of 36 million tons in 2017, and is expected to hit a record high of 38.4 million tons in 2018. Among them, the EU and the United States, which are the top two, have a combined output of more than 20 million tons. In addition, Southeast Asian countries, Brazil, Argentina and other countries are also developing very well. Among them, Argentina's biodiesel production reached about 3 million tons in 2017.

According to the above-mentioned experts at the meeting, contrary to the international situation, my country's biodiesel production has been declining in recent years. According to the statistics of relevant institutions, in 2015, my country's biodiesel production capacity reached 2.5 million tons per year, but the actual annual output was only 800,000 tons.

Biodiesel has the characteristics of renewable resources, which helps to reduce particulate matter and greenhouse gas emissions, and promotes the rational use of waste oils such as waste oil by "turning waste into treasure". Safety. In the United States, biodiesel contributes nearly 50 percent of the country's particulate emissions reductions, according to the U.S. Environmental Protection Agency.

Lin Jianmin pointed out that the second-generation biodiesel with a wider range of raw material adaptability, including hydrogenated vegetable oil (HVO) and biomass Fischer-Tropsch diesel (FT-BTL), will have indicators of particulate matter, NOX, CO, and total hydrocarbons. Significant reductions, while second-generation biodiesel produced from waste oils and fats is expected to reduce carbon emissions by 91% compared to fossil diesel.

The industry generally believes that in my country, the biggest benefit of the promotion and use of biodiesel is to solve the food safety problem of "gutter oil" returning to the dining table. In fact, "China's biodiesel production process is already at the forefront of the world, and China can produce the world's best biodiesel with the worst raw material (waste oil). The survey found that 3 million tons of waste oil are consumed in my country every year, namely There is about a 10% chance of per capita consumption of edible oil made from waste oil. From this perspective, the promotion of biodiesel in China is more urgent than in Europe and the United States. The promotion of ethanol gasoline on the issue of chemical grains is more urgent," he said.

The reporter learned from the meeting that there were hundreds of biodiesel production enterprises in my country during the peak period, but the number has dropped sharply in recent years. The pilot promotion of biodiesel in various places in my country, such as Hainan, Anhui, Yunnan, etc., ended in failure due to the difficulty in entering the refined oil market. Since last year, Shanghai has promoted the application of biodiesel in the public transportation system. It is the first and only area in China where biodiesel has been successfully applied, but it has not been widely used yet. The Beijing Environmental Protection Bureau pre-organized bus companies to try out biodiesel, but it has not yet started. Therefore, "Strictly speaking, biodiesel has not been officially used in my country." Lin Jianmin said.

Lin Jianmin further pointed out, "According to our research, it is completely feasible and safe to add biodiesel to petrochemical diesel in the proportion of less than 10% in the third and fourth stages of the country. The second-generation biodiesel cetane number may reach 100. From a safety point of view, the addition ratio can reach more than 30%, or even 100%.”

Regrettably, due to the unclear division of responsibilities among the relevant national authorities, although some laws, regulations, subsidy policies, and tax incentives have been promulgated to encourage the development of biodiesel, the actual implementation still lacks supporting detailed rules. There is still a lack of unified action coordination and cooperation among the petrochemical industry, the automobile industry, the environmental protection department, and the food safety department, and each department operates its own affairs. As a result, the document is only in the release stage, and it is difficult to implement it, and it is difficult to substantially promote the application of biodiesel. effect.

Lin Jianmin believes that at present, only relying on a large number of low-end fuels and exporting to the EU can absorb part of the existing biodiesel production capacity, but it is by no means a long-term solution. Compared with ethanol gasoline, the blending of biodiesel and diesel is less difficult. The top priority is to improve the environment and ensure food safety. It is more realistic to promote the application of biodiesel than ethanol gasoline, and the use of biodiesel to improve fuel quality can also reduce the cost of using additives. expenditure.