9 sets of diesel hydrogenation units are in industrial application, and the activity and stability of the hydrogenation catalyst of Sinopec Dalian Institute has reached the international leading level

Thread Content

On June 2, the "Development and Application of Key Technologies for Low-Cost, Low-Energy-Consumption, Long-Cycle Production of National VI Diesel" project jointly undertaken by Dalian Institute, Jinling Branch, Zhenhai Refining and Chemical Branch, and Catalyst Company passed the appraisal of the Ministry of Science and Technology of the Group Company. The FHUDS-10 catalyst developed in conjunction with this project has a record low metal content and bulk density, and has achieved industrial application in processing a higher proportion of secondary processed diesel. Through collaborative optimization of catalysts and process engineering, the energy consumption of the device is significantly reduced. The activity and stability of the catalyst have reached the international leading level. In recent years, the oil refining industry has been in an era of "meager profit" or even "small profit". Enterprises are in urgent need of reducing the production cost of hydrogenation units. The most economical and effective means are to extend the operation cycle of the unit, flexibly process different raw oils, reduce unit energy consumption and catalyst usage costs, etc. With the goal of improving the catalyst's anti-coking ability and active metal utilization per unit volume, researchers from the Dalian Institute developed a low-cost, high-temperature stability Mo-Ni FHUDS-10 ultra-deep diesel hydrodesulfurization catalyst. The amount of catalyst metal per unit volume is 11.5% and 17.2% lower than the same type of domestic and foreign reference agents respectively. The catalyst has improved adaptability to raw materials, can process a higher proportion of secondary processed diesel, increases the temperature of the reaction effluent, fully utilizes the reaction heat, and significantly reduces the energy consumption of the device. The 3 million tons/year diesel hydrogenation unit of Jinling Branch using this catalyst has been operating stably for 17 months. The product quality meets the National VI vehicle diesel blending requirements. The average reaction temperature rise rate is about 0.66 degrees Celsius/month, which is significantly better than the first cycle and can meet the five-year maintenance target requirements of China's petrochemical enterprises. Currently, this catalyst is used industrially in 9 diesel hydrogenation units including Jinling Branch and Zhenhai Refining and Chemical Branch. The catalyst activity and stability are good and the energy consumption of the unit is significantly reduced, creating good economic benefits for the company.