Adipic acid and caprolactam are important chemical raw materials widely used in plastics, textiles, electronics, and other fields. However, the presence of sulfides during its production process may lead to serious catalyst poisoning issues. In order to solve this problem, desulfurization catalysts (high stack ratio) have emerged. This article will analyze its uses, properties, and applications in the adipic acid and caprolactam industries from different perspectives.
1、 From a usage perspective: deep removal of sulfides to avoid catalyst poisoning
1. Overview:
Desulfurization catalyst(High heap ratio) is mainly used for deep removal of sulfides such as thiols, thioethers, and thiophenes in benzene. Its function is to protect the benzene hydrogenation catalyst in the subsequent process from sulfide contamination, thereby improving the quality and yield of the product.
2. Example demonstration: In recent years, the adipic acid and caprolactam industries have developed rapidly, but the presence of sulfides seriously restricts the further development of the industry. Taking benzene hydrogenation in the production process of adipic acid as an example, the contamination of sulfides on the catalyst can lead to a decrease in reaction rate and a shortened catalyst life, thereby affecting the yield and quality of adipic acid. The use of desulfurization catalysts (high stack ratio) can effectively remove sulfides, ensure the normal operation of the catalyst, and achieve stable operation of adipic acid production.
2、 From the perspective of product specifications: meticulous and precise, ensuring catalytic effect
1. Overview: The product specifications of desulfurization catalysts (high stack ratio) are important indicators for measuring their quality and performance. The product specifications need to include multiple factors such as form, carrier, loading capacity, specific surface area, and catalyst bulk density.
2. Example demonstration: The black granular form of desulfurization catalyst (high stack ratio) is beneficial for its uniform dispersion during the reaction process and improves the catalytic effect. Alumina as a carrier can enhance the stability and high temperature resistance of catalysts, extending their service life. The loading amount of precious metals (such as palladium, ruthenium, platinum) is 0.98-1.05%, and the appropriate content can improve the activity and selectivity of the catalyst. The specific surface area is 360-380m2/g. A larger specific surface area is beneficial for the contact between the catalyst and reactants, improving reaction efficiency. The bulk density of the catalyst is 0.69-0.72g/cm3, and a moderate bulk density is beneficial for the loading and flowability of the catalyst.
3、 From the perspective of industry application: safeguarding the succinic acid and caprolactam industries
1. Overview: High stack ratio desulfurization catalysts play an important role in the adipic acid and caprolactam industries. Adipic acid and caprolactam, as important raw materials in the chemical industry, have wide applications in many industries such as plastics, textiles, electronics, etc. Therefore, ensuring their high-quality production is crucial.
2. Example demonstration: There are high concentrations of sulfides such as thiols, thioethers, and thiophenes in the production process of adipic acid and caprolactam. If desulfurization catalysts (high stack ratio) are not used, these sulfides will have serious poisoning effects on the catalysts in subsequent processes, thereby reducing product quality, increasing production costs, and even affecting the sustainable development of the enterprise. The use of desulfurization catalysts (high stack ratio) can effectively solve this problem, ensure the high-quality production of adipic acid and caprolactam, and promote the further development of the adipic acid and caprolactam industry.
Conclusion: High stack ratio desulfurization catalysts play an important role in the adipic acid and caprolactam industries. By deeply removing sulfides, the benzene hydrogenation catalyst is protected from sulfide pollution, and the desulfurization catalyst (high stack ratio) ensures the smooth operation of the industrial chain, achieving high-quality production of adipic acid and caprolactam. In the future, with increasing demand and technological advancements, desulfurization catalysts (high stack ratio) will play a greater role in the chemical industry, injecting new impetus into the industry's development.
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