Biodiesel is a dangerous thing
Biodiesel has the following properties: 1 has excellent environmental characteristics. Mainly because of low sulfur content in biodiesel, sulfur dioxide and sulfuremissions, can be reduced by about 30% (with 70% catalyst); aromatic alkane containing biodiesel will pollute the environment, so the harm to human body is lower than that of diesel exhaust. The detection showed that compared with ordinary diesel, biodiesel can reduce the toxicity of 90% air, 94% lower rates of cancer; due to the high oxygen content of biodiesel, making it less smoke when burning, and diesel emissions of carbon monoxide reduction compared to about 10% (with 95% catalyst); high biodegradability of biodiesel. 2 has good low temperature engine starting performance. No additives cold filter point up to -20 C. 3 good lubrication performance. The wear rate of the fuel injection pump, the engine cylinder body and the connecting rod is low, and the service life is long. 4 has good safety performance. Due to high flash point, bio diesel is not dangerous goods. Therefore, the transport, storage, use of security is obvious. 5 good fuel performance.
Biodiesel is a typical "green energy". It is of great strategic significance to develop bio diesel for sustainable economic development, promoting energy substitution, reducing environmental pressure and controlling urban air pollution. It is well known that the molecular weight of diesel oil is composed of about 15 carbon chains. It is found that the vegetable oil molecules are generally composed of 14-18 carbon chains, which are similar to those of diesel. Biodiesel is a new type of fuel made from renewable vegetable oils such as rapeseed. According to the analysis of chemical composition, biodiesel fuel is a kind of high fatty acid methane, which is obtained by the decomposition of C18 with the main component of unsaturated oleic acid,
Object: the main characteristics of biodiesel in diesel, biodiesel is a clean renewable energy, liquid fuel with soybean and rapeseed oil crops such as palm oil, and other oil tree fruit, Pistacia chinensis oil engineering microalgae of aquatic plants and animal fats, waste food oil as raw materials, is an excellent substitute for petroleum diesel fuel
Sixteen high octane, the good combustion in diesel combustion residue was slightly acidic, the catalyst and the engine oil service life extension. 6 with renewable performance. As renewable energy, unlike oil reserves, it will not be depleted by the efforts of agricultural and biological scientists. 7 without changing the diesel engine, can be directly added with special technical training without adding other refueling equipment, storage equipment and personnel. The main disadvantages: first, the high cost of biodiesel production from rapeseed oil as raw material, according to statistics, 75% of the cost of biodiesel production is the cost of raw materials. Therefore, the key to the practical application of biodiesel is to use cheap raw materials and improve the cost of conversion. Two is the use of biodiesel synthesis chemical method has the following disadvantages: complex process, alcohol must be excessive, the follow-up process must have the corresponding alcohol recovery device, high energy consumption, large equipment investment; deep color, the unsaturated fatty acid in high temperature metamorphism; esterification products difficult to recovery and high cost; production process waste lye emissions.
