What is the main task of hydrogenation refining

The main task of hydrofinishing is to remove impurities such as sulfur, nitrogen, and oxygen from the oil by hydrotreating it, so that the quality and stability of the oil can be significantly improved.

1, desulfurization

Hydrofining process through the role of catalyst, so that the sulfide in the oil reacts with hydrogen to produce hydrogen sulfide gas, so as to separate it from the oil. Sulfide is a harmful substance in the oil, and its presence not only reduces the quality of the oil, but also has a toxic effect on the catalyst in the oil processing process. Therefore, desulfurization is one of the important tasks in hydrofinishing.

2, nitrogen removal

Similar to desulfurization, hydrofinishing can effectively remove nitrogen compounds from the oil. The presence of nitrogen compounds also affects the quality and stability of the oil, as well as adversely affecting the oil processing. Through hydrofinishing, the nitrogen compounds in the oil react with hydrogen and are converted to nitrogen and water vapor, thus realizing nitrogen removal.

3, deoxygenation

Oxygen is another harmful element in oil. In the process of hydrofinishing, through the action of catalyst, the oxides in the oil react with hydrogen to produce organic compounds such as alcohols and ethers, which can be further treated or separated in the subsequent processing.

4. Improved Stability

The stability of the oil is significantly improved by hydrofinishing. In the process of hydrogenation, some unsaturated hydrocarbons that lead to unstable oil are saturated by hydrogenation, thus improving the stability of the oil. In addition, the hydrogenation process can also make some small molecular compounds polymerization or condensation, to produce large molecular compounds, these large molecular compounds have better stability.

Application of Hydrofinishing and Catalyst Selection

1. Application of Hydrofinishing

Hydrofinishing technology has a wide range of applications in the petroleum industry, which is not only used to produce high-quality lubricating oils, paraffin waxes and other petroleum products, but also can be used to improve the quality of fuel oil. Through the hydrofinishing technology, the quality and stability of the oil can be significantly improved so that it can meet higher environmental and performance requirements.

2, the choice of catalyst

In the hydrofinishing process, the choice of catalyst is crucial. Commonly used catalysts include precious metal catalysts (such as platinum, palladium, etc.) and metal oxide catalysts (such as nickel, cobalt, etc.). Depending on different oils and processing requirements, choosing the right catalyst can improve the efficiency and effectiveness of hydrofinishing.