On the basis of developing the FHUDS series diesel hydrogenation catalyst,Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co.,Ltd.(FRIPP) has developed a new generation of FHUDS-10 and FHUDS-7 catalysts through multiple innovations such as carrier modification,optimization of active metals and improvement of activation methods,and development of large-diameter modified alumina catalytic materials.In March 2023,the FHUDS-10 and FHUDS-7 catalyst (in sulfurized state) grading system was industrially applied in the 2 Mt·a-1 diesel hydrogenation unit of the Shymkent Refinery (PKOP) in Kazakhstan.The application results showed that the processing of mixed diesel with straight run diesel,reduced viscosity cracking diesel,and light catalytic diesel as raw materials was stable in producing low sulfur content clean diesel fuel for 14 consecutive months,proving that the catalyst system has high hydrogenation activity and stability.
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