In the oil refining industry, the so-called fuel oil refers to an oil product specially used as fuel for various industrial combustion equipment (including boilers, etc.). ), excluding gasoline and light diesel oil. There are many kinds of fuel oil, some of which have very low viscosity and some are quite thick, but for most of them, they are basically heavy fuels with relatively thick viscosity. The main raw material for producing this kind of heavy fuel oil is the residual oil left after atmospheric and vacuum distillation of crude oil.

In combustion equipment, fuel is injected into the furnace through a nozzle under pressure. If the fuel viscosity is too small, it will be sprayed too close, which will easily lead to local overheating; If the viscosity is too high, the sprayed fuel droplets will be too large, which will make it difficult to burn completely and easily produce black smoke.

Extended data:

Four major uses

1. The fuel consumption in the power industry is mainly used for oil-fired power generation, ignition, combustion-supporting and stable combustion of heating units and coal-fired units.

2. The fuel oil consumed by the iron and steel industry is mainly used for heating furnaces, self-provided power plants for power generation and heating and refractories.

3. The fuel oil consumed by building materials industry is mainly used to produce flat glass and building sanitary ceramics. With the improvement of product quality requirements, some high-end products will gradually turn to natural gas and liquefied petroleum gas as fuel.

4. Fuel oil for petrochemical industry is mainly used for power generation in self-provided power plants, heating in oil fields, heat used in the production process of refineries, raw materials and fuels used in the production of fertilizer plants and other chemical production.

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