【Ten Years of Great Progress in Chemical Engineering Technology】253-2023: Key Equipment for Large-Scale Separation of Carbon Ash from Gasification Slag, and Value-Added Utilization of the Separated Carbon

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Ten years of rapid development in chemical engineering technology – praising the prosperity and strength of modern China. This is just a starting point; more participation will make things even more interesting. With you here, HaiChuan becomes even better. [Ten years of progress in chemical engineering equipment] – continuous updates and summaries available; feel free to join the discussions at https://bbs.hcbbs.com/thread-3576046-1-1.html. Enhancing quality awareness to promote high-quality development. -----------------------------------------On September 5, 2023, the China Petroleum and Chemical Industry Federation organized experts to hold an evaluation meeting for the scientific and technological achievements related to “Key equipment and technologies for separating carbon ash from coal gasification residues, as well as the recycling of such carbon resources.” This project was carried out in collaboration between Taiyuan University of Technology, Yulin Hexin He Yuan Environmental Protection Technology Co., Ltd., Shaanxi Pusida Environmental Protection Technology Co., Ltd., and **Energy Group Ningxia Coal Industry Co., Ltd.** The appraisal committee, headed by Xie Kechang, an academician of the Chinese Academy of Engineering, concluded that the key equipment and technologies for large-scale separation of carbon ash from gasification slag, as well as the technologies for the value-added utilization of the separated carbon, feature high efficiency, low cost, and environmental friendliness; the overall technology level of these achievements is at the international leading stage. This achievement overcomes the technical challenges associated with large-scale, low-cost, and efficient separation of carbon ash from gasification slag in the coal chemical industry; it transforms gasification slag from a \"solid waste\" into a \"raw material,\" providing a technical basis for the resource utilization of such slag. It offers significant social and economic benefits. This achievement has been successfully applied to the Yulin projects of \"Development and Engineering Demonstration of Multi-Physical Field Carbon Ash Separation Technology for Gasification Slag\" and \"Development and Engineering Demonstration of Technology for Preparing Activated Coke from Tens of Thousands of Tons of Gasification Slag Sorting Carbon\". The application results show that the loss on ignition of the sorted carbon product is >80%, and its fixed carbon content is >75%; the loss on ignition of the high-ash product is 60%, while the activated carbon product meets the specifications for high-quality products as defined in GB/T 30202.3-2013.