In the oil refining industry, the so-called fuel oil refers to a kind of oil products specially used as fuel for various types of industrial combustion equipment (including boilers, etc.), which does not include gasoline and light diesel oil. There are many kinds of fuel oil, some of which have 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 by crude oil after atmospheric and vacuum distillation.

In combustion equipment, fuel oil is injected into the furnace through nozzles under pressure. If the viscosity of fuel oil is too small, it will be sprayed too close, which will easily lead to local overheating; If the viscosity is too high, it will make the jetted fuel oil drop too large, which is difficult to burn completely and easy to generate black smoke.

Extended information:

Four purposes

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

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

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

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

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