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At the end of 2010, the problem of "diesel shortage" pushed biofuels to the top of the turbulence, or it would become a "savior" to save traditional energy between dangers. How could bio-diesel become the most promising alternative at this time? Biodiesel refers to regenerative diesel fuel that can be replaced by petrochemical diesel fuel through transesterification process using oil crops such as oil crops, wild oil plants and engineered microalgae, as well as animal fats and catering waste oils.
Biodiesel has excellent environmental characteristics, mainly due to the low sulfur content in biodiesel, resulting in low emissions of sulfur dioxide and sulfide, which can be reduced by about 30% (70% when there is a catalyst); biodiesel does not contain environmental Contaminated aromatic alkanes cause the exhaust gas to be less harmful to humans than diesel. The tests showed that the use of biodiesel can reduce the air toxicity by 90% and reduce the cancer rate by 94% compared with common diesel; due to the high oxygen content of biodiesel, it causes less smoke during combustion, and the emission of carbon monoxide is similar to that of diesel. The reduction is about 10% (95% when there is catalyst); biodiesel has high biodegradability and the degradation rate is 2 times that of ordinary diesel, which can greatly reduce the environmental pollution caused by accidental leakage. This is also one of the reasons why biodiesel has received more attention from countries around the world following the oil spill in Mexico.
At the end of 2010, the state officially promulgated and implemented the biodiesel B5 standard, which created the basic conditions for China’s biodiesel to enter the refined oil market, making it possible to add biodiesel to petrochemical diesel for sale and use.
At present, the country has begun to pay attention to the development of biodiesel. With the implementation of various policies, the production scale of biodiesel will inevitably expand. After the expansion of the production scale, the industry technology will be further improved, and the cost will also be reduced. Biodiesel The outlook for the coming years will get better and better.
In addition to biodiesel, fuel ethanol is one of the world's key research and development clean energy projects. Ethanol is commonly referred to as alcohol. It is made from corn, wheat, potato, molasses or plants as raw materials, and is fermented and distilled. It is further dehydrated and then denatured and processed into denatured fuel ethanol. Fuel ethanol is also a quality improver that can be added to gasoline in food or plants. It is not the general alcohol, but its deep-processed products.
Fuel ethanol is a renewable energy source that can be used in dedicated ethanol engines and can be mixed with gasoline in certain proportions and used directly without any modification of the original gasoline engine. The use of alcohol-containing gasoline can reduce the consumption of gasoline, increase the oxygen content of fuel, make combustion more fully, and reduce the emission of pollutants such as CO during combustion. In countries such as the United States and Brazil, fuel ethanol has been initially popularized, and fuel ethanol has begun to develop in a planned manner in China.
According to Thomas Nach, global vice president of Novozymes, the world’s largest industrial enzyme manufacturer, China’s second-generation biofuels have achieved technological and commercial breakthroughs with the support of the state and the industry’s efforts. COFCO, Sinopec The commercialization of cellulosic ethanol commercialization by the Group and Novozymes is progressing rapidly and will be mass-produced in the next 2-3 years.
In 2009, China had already leapt to the second largest oil consumption in the world. According to the current speed of China’s economic development and the speed with which it consumes energy, it is urgent to find new alternative energy sources.
In recent years, Henan Tianguan and Shandong Longli have begun to enter the field of cellulosic ethanol. PetroChina has also taken actions in this area. Some international giants DuPont and Genencor have also begun to deploy in China, together with COFCO, Sinopec and Novi. Letter, more and more companies are entering this field, indicating that second-generation biofuels have very good prospects in China.
Low-carbon drives bio-fuels for environmental protection industry to sail
Biofuels refers to fuel ethanol and biodiesel produced through biological resources, which can replace gasoline and diesel oil produced from petroleum and is an important direction for the development and utilization of renewable energy. Affected by the world's petroleum resources, prices, environmental protection, and global climate change, many countries have paid more attention to the development of biofuels since the 1970s and have achieved remarkable results.