[Chemical Knowledge]：Properties, uses, upstream and downstream feedstocks, storage methods, differences between hydrogenated xylene and petroleum grade xylene

Hydrogenated xylene properties

Hydrogenated xylene (Hydrogenated Xylene), the chemical structure of which is C8H10, is a compound obtained by hydrotreating p-xylene (Xylene). Its physical properties are different from those of unhydrogenated xylene. Hydrogenated xylene is a clear, colorless liquid with low toxicity and irritation, and low volatility. It has a boiling point between 140-145°C, a flash point of about 25°C and a density of about 0.86g/cm³. Due to the effect of hydrotreating, hydrogenated xylene has better chemical stability and lower aromaticity, which makes it more advantageous in some specific applications.

Hydrogenated xylene uses

Hydrogenated xylene is mainly used in the fields of solvents, chemical intermediates and special fuels. As a solvent, it is widely used in coatings, inks, adhesives and cleaning agents and other industries. Because of its low volatility and good chemical stability, it can improve the performance and safety of products. Hydrogenated xylenes are also used in the production of chemical intermediates such as phenol, styrene, etc., which are further used in the manufacture of resins, plastics, and synthetic fibers. In the fuel field, hydrogenated xylene is also used as a special fuel and additive due to its high calorific value and low pollution characteristics.

Upstream raw materials

The production of hydrogenated xylenes relies primarily on xylenes as a feedstock. Xylene is an important chemical raw material obtained from petroleum cracking or coal tar fractionation. Through the catalytic hydrogenation process, the aromatic ring in xylene is saturated to obtain hydrogenated xylene. The hydrogenation process also requires the use of high-purity hydrogen and catalysts, such as palladium, platinum and other noble metal catalysts, to ensure efficient reaction. Thus, xylenes, hydrogen and catalyst are important upstream feedstocks for the production of hydroxylenes.

Downstream Products and Applications

As an important chemical raw material, hydrogenated xylene can be further processed to generate a variety of downstream products. It can be used to produce high-purity phenol and styrene, which have a wide range of applications in the plastics and resin industries. Hydrogenated xylene can also be used to manufacture high value-added products such as synthetic lubricants, polyester fibers and polyurethane foams. In the field of electronic chemicals, hydrogenated xylene is used as a cleaning agent and solvent. Due to its low toxicity and high purity, it can meet the strict requirements in the manufacture of electronic components.

HYDROGENATED XYLENE STORAGE METHOD

Hydrogenated xylene has a certain chemical activity and flammability, so it needs special attention during storage and transportation. It is usually stored in a stainless steel or aluminum container to prevent it from reacting with metals such as iron and copper. The storage environment should be kept dry and ventilated, away from fire and heat sources, and avoid direct sunlight. In order to prevent the accumulation of static electricity, the container needs to be grounded during loading and unloading. The storage temperature is generally kept at room temperature, and the fire fighting facilities in the warehouse are complete to deal with emergencies.

Environmental Protection and Safety

Although the toxicity of hydrogenated xylene is lower than that of non-hydrogenated xylene, its production and use still need to be strictly controlled to reduce the impact on the environment and ensure the safety of operators. Waste gas treatment systems and waste water treatment systems are necessary to ensure that emissions meet environmental standards. Operators should wear appropriate personal protective equipment such as gloves, goggles and protective clothing to prevent skin contact and inhalation. Production enterprises also need to conduct regular safety training and emergency drills to improve their ability to respond to emergencies.

Market Prospects and Trends

With the continuous development of the chemical industry and the improvement of environmental protection requirements, the market demand for hydrogenated xylene shows a growing trend. It has broad application prospects in the field of low toxicity, high performance solvents and environmentally friendly fuels. With the progress of technology and the improvement of production process, the production cost of hydrogenated xylene is expected to be further reduced, and the market competitiveness will be gradually enhanced. In the future, the application of hydrogenated xylene in the field of high value-added chemicals and new energy will become an important development direction.

Conclusion

Hydrogenated xylene, as an important chemical product, has a wide range of applications and good market prospects. Its physical and chemical properties give it a distinct advantage in the fields of solvents, chemical intermediates and specialty fuels. In the process of production and use, we must pay attention to safety and environmental protection to ensure the protection of the environment and human health. With the continuous advancement of technology, the application field of hydrogenated xylene will continue to expand, and the market demand will continue to grow.