The adsorption tower for the diesel production facility, part of Jilin Petrochemical’s transformation and upgrading project aimed at producing 1 million tons of diesel per year, has been successfully installed

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At 15:00 on April 7, the adsorption tower of the diesel production unit designed for a capacity of 1 million tons per year as part of Jilin Petrochemical’s transformation and upgrading project was successfully hoisted into place. This is the largest adsorption tower of its kind in China at present, and it is also the core equipment of this facility. The Jilin Petrochemical Refining and Chemical Transformation Project, with a total investment of 33.9 billion yuan, is the first large-scale petrochemical project approved since the 14th Five-Year Plan period. It is also the largest single industrial project ever invested in in Jilin Province since the founding of the People’s Republic of China. The diesel adsorption unit is one of the 28 main units constructed or renovated (expanded) as part of the transformation and upgrading project. Construction began in March 2023; completion is expected by mid-August 2024, with operation set to start in June 2025. The adsorption tower is 36.823 meters tall and 6.8 meters in diameter, with a net weight of 495.58 tons. Based on the arrival status of the equipment, the structure of the tower, the lifting parameters, and the existing configuration of lifting equipment, the lifting of the adsorption tower is carried out using the \"single-main-crane lifting method\", with a 1250-ton main crane and a 400-ton auxiliary crane working together to complete the task. At 14:18, all preparatory work was completed and lifting began. Through the joint efforts of the Company’s Project Management Department for Transformation and Upgrading, the East Area Project Management Department, as well as the construction and supervision units, the adsorption tower was lifted to its designated location in 42 minutes. According to Zhang Pengfei, a senior expert in petrochemicals at Jilin Petrochemical Company, once this facility is put into operation, it will enable efficient and energy-saving separation of aromatics from non-aromatic compounds for products such as heavy gasoline, heavy diesel, and light diesel, based on the differences in the polarity of their components. This process allows for the separation of alkanes, cycloalkanes, and aromatics within the diesel feedstock, resulting in products that contain either non-aromatic or aromatic compounds, thereby providing high-quality raw materials for downstream processing units.