The Sinopec Fushun Research Institute of Petroleum and Petrochemicals has once again proven its leadership in the field of hydrogenation technology. Recently, the institute has introduced two innovative catalysts—FDW-4 hydrogen depressant catalyst and FC-18 hydrogenation catalyst—designed to meet the stringent requirements of combined hydrogenation and dewaxing processes. These catalysts not only exhibit excellent performance but also offer strong compatibility with various feedstocks, significantly enhancing the efficiency and quality of diesel production. A key component of the hydrogenation and dewaxing integrated process is the performance of the supporting catalysts. Among these, the FDW-4 hydrogen depressant and dehydrating catalyst represents a new generation of advanced materials tailored for the treatment of lower-quality diesel. This catalyst is particularly effective in hydrogenation and decondensation processes involving straight-run or secondary processed diesel blends. It ensures better flowability and stability, making it ideal for modern refining applications. Meanwhile, the FC-18 hydrogenation catalyst is specifically developed to improve the properties of inferior diesel fuel. Under hydrotreating conditions, it effectively removes sulfur and nitrogen compounds while significantly increasing the cetane number of the diesel, leading to improved combustion performance and engine efficiency. The use of this catalyst helps maintain a higher yield of high-quality diesel products, which is crucial for meeting environmental standards and market demands. Together, the FDW-4 and FC-18 catalysts form a powerful combination that outperforms existing hydrogenation dewaxing catalysts in terms of catalytic activity and selectivity. Their superior performance ensures more efficient processing, reduced energy consumption, and better product quality, reinforcing Sinopec's position as a pioneer in catalytic innovation. With these advancements, China's hydrogenation and dewaxing technologies continue to evolve, setting new benchmarks in the global refining industry.

Nitrided Screw & Barrel

The processing of nitriding screw is a plastic mechanical screw made by a lathe, which is put into a nitriding furnace and filled with nitrogen under a certain temperature and humidity environment. After a certain nitriding cycle, a nitride layer with relatively high hardness is formed on the surface of the screw. This improves the abrasion resistance and durability of the screw.

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