Biodiesel mainly refers to fatty acid methyl esters, which can be used as fuel or as raw materials or intermediates for chemical products, such as industrial solvents or surfactants.
Fuel
The main use of biodiesel is to reconcile components of clean diesel oil and produce clean diesel that meets Euro III standards. Compared with petroleum diesel oil, biodiesel has sixteen advantages such as high alkane value, low sulfur content, no aromatics, high flash point, good lubricity and quick biodegradation. Abroad, the main varieties and uses of biodiesel as fuel include:
(1) 100% biodiesel. The strict requirements of raw materials and products have, such as Germany with low erucic acid and glucosinolate rapeseed oil production, the product can meet the Euro III emission standards. There are 100% biodiesel standards in many countries in Europe and the United States. Table 1.1 shows the D6751-03 standard for biodiesel in the United States (ASTM).
(2) biodiesel blending with petroleum diesel fuel. The amount of biodiesel used abroad is 2%, 5%, 10%, 20%, 30%, respectively, called B2, B5, B10, B20 and B30 diesel. The role of biodiesel in B2 diesel fuel is to improve the lubricity of diesel fuel. High content of biodiesel is conducive to reducing harmful gas emissions, protecting the environment. At present, no foreign for the deployment of diesel separate standards, as long as 100% biodiesel standard to the corresponding provisions of the standard, such as the United States to biodiesel must reach ASTM D6751 as diesel blending component for use.
(3) domestic heating furnace fuel. In China, biodiesel is rarely used as fuel, one of the main reasons is that the country has not promulgated relevant standards. At present, the Institute of petrochemical sciences is developing. In addition, the biodiesel manufacturers generally have their own corporate standards, such as the standard Q/LYZY012002 company Fujian excellence new energy development.
