Project on the Co-utilization of Hazardous Waste in Water-coal Slurry Gasifiers

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On the afternoon of April 3, 2023, the Zhenjiang Ecology and Environment Bureau organized a expert consultation meeting at Jiangsu Supor (Group) Co., Ltd. to discuss the issuance of a waste management license for the project related to the combined use of hazardous waste in water-coal slurry gasifiers by Zhenjiang Pujing New Energy Technology Co., Ltd. (referred to as “Fanjing New Energy”) and Jiangsu Supor Chemical Co., Ltd. (referred to as “Jiangsu Supor”), following the model used for cement kilns. The experts present agreed that both the coal-water slurry gasification furnace co-utilization project and the cement kiln co-disposal project possess functions for pre-treatment and final co-disposal. For management aspects and models, the application for a license to handle hazardous waste can follow the centralized operation model outlined in the \"Guidelines for the Review of Licenses for Handling Hazardous Waste through Cement Kiln Co-disposal\", where pre-treatment facilities and final disposal facilities are operated by separate legal entities. In waste management, Pujing Company will adhere to the principles of starting with less and progressing to more, starting with easier tasks and moving on to more difficult ones, and starting with simpler methods before moving to more complex ones. Aiming to create the greatest environmental value and social benefits, the company will strictly control process technology, production management, as well as safety and environmental protection aspects, so as to turn the project of utilizing hazardous waste in water-coal slurry gasifiers into a benchmark for the industry. Jiangsu Suopu and Zhejiang Fanjing New Energy Technology Co., Ltd. jointly invested to establish Zhenjiang Pujing New Energy Technology Co., Ltd., in order to carry out a project for the coordinated treatment of hazardous waste through organic synthesis slurry gasification. The project uses a four-nozzle water-coal slurry gasifier, with organic synthesis slurry made from hazardous waste such as spent activated carbon and distillation residues as raw material, to replace part of the coal in the gasification process for the production of syngas. Jiangsu Supor’s hazardous waste resource recycling project involves gasifying industrial solid wastes and hazardous wastes using Jiangsu Supor’s existing water-coal slurry gasifiers, to produce carbon monoxide and hydrogen that meet the production needs of Supor Company. Phase 1 of the project plans a hazardous waste disposal capacity of 150,000 tons per year. In February 2020, Jiangsu Suopu signed a Cooperation Agreement with Fanjing New Energy. Zhenjiang Pujing New Energy Technology Co., Ltd. was established to carry out projects for the reuse of hazardous waste resources. In October 2020, Thorpe issued a announcement to make adjustments to the hazardous waste recycling project. The investment, construction, and operation entities have been changed to Fanjing New Energy, Jiangsu Suopu, and Zhenjiang Pujing, while all other terms remain unchanged. On December 11, 2020, Suopu Company released a plan for a private offering of A-share stocks, aiming to raise a total amount of no more than 993 million yuan, which would be used for projects aimed at improving the acetic acid production technology, as well as for replenishing working capital and repaying bank loans. The project to improve the acetic acid gas generation process involves collecting hazardous waste such as waste activated carbon and distillation residues from chemical enterprises in Zhenjiang and its surrounding areas, and using them to produce organic synthesis slurry. This organic synthesis slurry is gasified together with semi-coke and petroleum coke to produce products such as carbon monoxide with high added value. By making rational use of hazardous waste to generate circular economic benefits, it is possible to achieve energy savings, reduced consumption, as well as lower costs and higher efficiency.