Initial boiling octane number of reforming feedstock

The initial boiling point and octane number of reforming feed are two petrochemical terms, which are related to petroleum refining and fuel oil production.

1. Initial distillation point of reforming feedstock: refers to the temperature at which the feedstock oil starts to be distilled in the reforming unit. This temperature is usually measured in the feed pretreatment stage to evaluate the properties of feed oil and which type of reforming process is suitable.

2. Octane number: This is an important indicator to measure the performance of fuel, indicating the anti-explosion property of fuel. The higher the octane number, the better the antiknock performance of the fuel, which can be used for engines with high compression ratio. In gasoline engines, the use of high octane gasoline can improve the efficiency and power of the engine.

These two parameters are important indexes to measure the quality of reforming feed oil. The low initial boiling point of reforming feed indicates that the oil has high content of light components, small molecular weight and good fluidity, but it also means that its boiling point is low and it is easy to volatilize and burn. High octane number means that the oil has good antiknock performance and can be used as a component of high octane gasoline.

In the process of reforming, the initial boiling point and octane number of raw materials will affect the effect and quality of reforming reaction. Generally speaking, the lower the initial distillation point of raw materials, the higher the octane number, indicating that the quality of reforming raw oil is better. However, these two parameters are not the only standards, and the oil quality should be comprehensively evaluated by combining other indicators such as sulfur content, nitrogen content and aromatic hydrocarbon content.

The role of octane number:

1, improve engine performance: gasoline with high octane number can better adapt to engines with high compression ratio, thus improving engine performance and efficiency. Under the same compression ratio, higher power and torque can be obtained by using high octane gasoline, thus improving the power and economy of the car.

2. Reduce engine wear: High octane gasoline can reduce engine internal friction and wear and prolong engine service life. Because high octane gasoline has better combustion performance, it can reduce the temperature and pressure inside the engine, thus reducing the wear and failure of the engine.

3. Reduce environmental pollution: Using high-octane gasoline can reduce pollutants emitted by engines, thus reducing environmental pollution. High octane gasoline has better combustion performance, which can reduce the emission of hydrocarbons, carbon monoxide and nitrogen oxides in tail gas, thus reducing the pollution to the environment and the harm to human health.