Diesel physical properties and classification

The boiling point range and viscosity is between the liquid petroleum fractions between kerosene and lubricants. Volatile, insoluble in water, soluble in alcohols and other organic solvents. It is a complex mixture of components, and the censone value of the boiling point is 180 ° C. The high-speed diesel engine is used in the high diesel hexadecane value of 42 to 55, the boiling point range and the viscosity of the liquid petroleum fraction between kerosene and lubricants. Volatile, insoluble in water, soluble in alcohols and other organic solvents. It is a complex mixture of components, and the boiling point range of hexadecanes is from 180 ° C to 370 ° C and 350 ° C to 410 ° C. Distressed or cracking from crude oil, shale oil, etc. Depending on the nature of the crude oil, there is a paraffin-based diesel, a cycloalkyl diesel, a cycloalkane-aromatic diesel, and the like. Depending on the density, the oil and its processing products are used to the boiling point or the boiling point of the boiling point, and it is opposite to heavy. Generally divided into light diesel and heavy diesel. Paraffin-based diesel is also used as a raw material for splitting ethylene, propylene, and can also be absorbed oil.

Product diesel is classified by solidification point, such as 10, -20, etc., indicates low use temperatures, and diesel is widely used in large vehicles, ship, generators, and the like. Mainly used asdiesel engineLiquid fuel, due to high-speed diesel engine (car) than gasoline engine, diesel demand growth rate is greater than gasoline. Diesel has low energy consumption, low pollution environmental protection, so some small cars and even high-performance vehicles also use diesel, but due to poor quality of China's diesel, the normal diesel car imports to China may have failed or even accidents.

Main indicators: Main indicators are censones, viscosity, solidity points, etc. Diesel quality requirements are good combustion properties and fluidity. The greater the greater and betterness of the combustion performance, the more high-altitude, the diesel hexadecane made of Daqing crude oil can reach 68. The high-speed diesel engine with a high diesel hexadecane value is 42 to 55, low at 35 or less.