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CNOOC’s diesel adsorption separation technology successfully deployed for the first time Transforming the refining process through the concept of \"molecular engineering\" On July 9, reporters learned from China National Offshore Oil Corporation that the diesel adsorption separation technology, developed jointly by CNOOC Tianjin Chemical Research and Design Institute Co., Ltd. (hereinafter referred to as \"CNOOC Tianjin Institute\") and China Kunlun Engineering Corporation, was used for the first time in Binzhou, Shandong Province. This marks an important milestone in the adoption and application of diesel adsorption separation technology developed based on the concept of \"molecular engineering\" in China, and it holds great significance for promoting the transformation and upgrading of the country’s refining industry. Yu Haibin, director of CNOOC Development Tianjin Institute, said that diesel adsorption separation technology revolutionizes the processing processes in the traditional refining industry by creatively separating fuel into chemicals of higher purity, thereby ensuring that the chemical components in the oil are utilized to the fullest extent of their potential. Through a combination of processes, this technology enables the efficient conversion of gasoline and diesel into chemicals in high demand in the market, such as aromatics, olefins, and green solvents. It features a short production process, low investment costs, low operating expenses, high yields of chemical products, and flexible product options. An industrial demonstration unit using this technology has completed 72 hours of full-load operation testing at Binyang Combustion and Chemical Co., Ltd. in Shandong Binhua. The product quality meets all requirements, with various indicators such as processing energy consumption reaching the design values. The proprietary processes, adsorbents, patented grid components, and specialized control systems have undergone industrial validation. Reporters have learned that with the development of new energy sources and the successive commissioning of large-scale refining projects, China’s crude oil processing capacity has continued to increase in recent years; by 2019 it had reached 860 million tons, with an annual overcapacity of over 100 million tons. At the same time, driven by rising demand for high-end chemical products, the growth rate of basic chemical raw materials such as olefins and aromatics is much higher than that of refined oil products, with import rates exceeding 50%. Developing oil-chemical integration technologies to achieve higher-value utilization of petroleum products, and to promote the transformation, upgrading, and efficiency improvement of the traditional refining industry, has become a focus of attention across the entire sector. Yu Haibin told reporters that adsorption separation technology uses gasoline and diesel as raw materials for producing chemicals, which can effectively increase the processing value of these oils; it has broad market prospects and has already been widely recognized by the industry. To date, this technology has received **45 authorized domestic invention patents and 1 internationally authorized invention patent. Next, CNOOC Development Tianjin Institute will further expand the application areas of this platform technology, develop related technologies for extending the industrial chain, and create a series of integrated technologies that combine oil processing with chemical processing. At the same time, by leveraging the resource advantages of various parties, it will intensify efforts in promoting and disseminating this technology in order to facilitate the transformation, upgrading, and high-quality development of the refining and chemical industry.