【Ten Years of Great Progress in Chemical Technology】036-2023 Pilot Production of Hebei’s 200,000-ton CO2 Capture and Recycling Demonstration Project

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【Ten Years of Great Progress in Chemical Technology】036-2023: Pilot Production of Hebei’s 200,000-ton CO2 Capture and Recycling Demonstration Project. Hebei Jiantao Energy Development Co., Ltd. (referred to as “Hebei Jiantao”) completed all electrical and instrumentation testing for its “200,000 tons per year carbon capture and recycling project” on April 7; material feeding began on April 9, and qualified CO2 products were produced on the same day, resulting in a successful first operation and smooth pilot production. During this period, the system operated stably. At medium and low load levels, the absorbent efficiently absorbed CO2, resulting in a CO2 capture efficiency of over 98%. The SO2 in the flue gas after desulfurization was further washed in the adjustment tower, bringing the SO2 concentration at the outlet to almost zero. By adjusting and controlling the temperature, the temperature at the exit of the absorption tower was kept roughly the same as that at the exit of the adjustment tower, thereby achieving stability in the system’s water balance. Jiantao Company’s carbon capture project has attracted attention from various sectors. The company has developed key technologies for overcoming the challenges associated with this task, and it possesses the capability to design, construct, commission, and test complete chemical absorption-based carbon capture processes. These capabilities will provide technical support for the widespread adoption of carbon capture technology in pursuit of the dual-carbon goals. The carbon capture project goes through four stages: laboratory testing, pilot-scale testing, intermediate-scale testing, and finally industrial-scale implementation. At present, the project is in the trial operation phase, and partial results have been achieved. The technical team from Tsinghua University will conduct a thorough analysis of the technology developed, striving to overcome the final obstacles and bring the system into full operation. Director He Yansheng said that carbon capture projects have received attention at all levels – provincial, municipal, and county – **. This exchange and discussion between the two parties provide strong support for addressing the challenges associated with these projects and for their successful implementation. He hopes to continue to strengthen cooperation in industry, academia, and research with top domestic universities such as Tsinghua University, as well as to foster deeper collaboration in related fields, in order to overcome the technical obstacles encountered during project construction. This will help to accelerate the transformation of scientific and technological achievements into practical applications, achieving mutual benefit for both sides. The 200,000 tons per year carbon capture and recycling project, organized and carried out by the **Engineering Research Center for the Synergistic Control of Air Pollutants and Greenhouse Gases** at the School of Environment, Tsinghua University (hereinafter referred to as the **Engineering Research Center**), has successfully entered the trial production phase. This project has largely achieved the goal of establishing a scientific research foundation platform in the field of CCUS for the **Engineering Research Center** ； A comprehensive monitoring platform for system operation parameters has been established ； System-wide sampling, testing networks, and points have been established ； It enables large-scale, stable, flexible, and linear adjustment of various control points in the system. During the trial production phase, the system operated smoothly, with its performance meeting the required standards. The system delivered carbon dioxide product gas to the backup station in the plant, and the purity of this CO2 product met the requirements for use in chemical processes within the plant. The dust level at the flue gas outlet remains generally low, below the local standards of Hebei Province. The amount of CO2 purchased externally was reduced from 220 tons per day to 40 tons per day, resulting in a significant decrease in production costs. The operation of this project will provide a valuable scientific and technological model as well as market promotion benefits for similar enterprises in our country in the field of carbon dioxide capture and recycling, further driving the high-quality development of the industry and contributing to the achievement of our country’s goals for carbon peak and carbon neutrality.