The Sinopec Fushun Research Institute of Petroleum and Petrochemicals has once again proven its leadership in hydrogenation technology. Recently, the institute introduced two advanced catalysts—FDW-4, a hydrogen depressant catalyst, and FC-18, a hydrogenation catalyst—both specifically designed to meet the demands of combined hydrogenation and dewaxing processes. These catalysts offer excellent compatibility and performance, significantly enhancing China’s hydrogenation dewaxing technology. One of the key factors in the success of the combined hydrogenation and dewaxing process is the performance of the supporting catalysts. The FDW-4 catalyst is a next-generation hydrogen depressant and dehydrating agent, developed to handle lower-quality diesel feedstocks. It is particularly effective for hydrogenation and decondensation of various straight-run or secondary processed diesel blends. This makes it an ideal choice for improving fuel quality under different processing conditions. On the other hand, the FC-18 hydrogenation catalyst is tailored to enhance the properties of inferior diesel fuels. Under hydrotreating conditions, it effectively removes sulfur and nitrogen while significantly increasing the cetane number of diesel, which improves combustion efficiency. This not only enhances fuel quality but also helps achieve higher diesel yields. Together, the FDW-4 and FC-18 catalysts deliver superior catalytic activity and selectivity compared to traditional hydrogenation dewaxing catalysts. Their combined application ensures better performance, making them a valuable asset in modern refining operations. With these innovations, Sinopec continues to push the boundaries of catalytic technology, supporting the industry's move toward cleaner and more efficient fuel production.

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1. When using new plastic, the remaining material of the screw should be cleaned. 2. When the temperature of the molten plastic is normal but black spots or discoloration of the molten plastic are constantly found, the rubber screw should be checked. 3. During processing, try to make the material plasticize evenly, and do not allow metal foreign matter to be mixed into the material to reduce the torque of the screw. force.

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