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The design for the safety facilities of the pyrolysis phase of Yulin Chemical’s 15 million tons per year demonstration project for clean and efficient conversion of coal on a differentiated basis has passed expert review. Author/Source: Coal Chemical Industry 114 Forum; Date: 10-21-2019; Views: 31. On October 16, an expert review meeting regarding the “design for safety facilities” of this project was held in Yulin. Participants included representatives from Yulin City’s Emergency Management Bureau, the Safety Supervision Bureau of Yushen Industrial Zone, 7 review experts, the company’s vice president and chief engineer, heads of relevant departments and project teams, as well as representatives from the design firm. At the meeting, the person in charge of the 120 Project Department gave an overview of the preliminary work for the project, its progress, and the implementation of the principle of \"simultaneous implementation\" for safety facilities. The design firm, Shengbang Technology Co., Ltd., presented a report on the design of the project’s safety facilities. Subsequently, the experts and leaders present reviewed the application materials for the design review of the project’s safety facilities, and provided reasonable suggestions and opinions. After careful review and thorough discussion, the expert group agreed to approve the safety facility design for this project. The company’s deputy general manager stated that the design of safety facilities for the pyrolysis startup project is of great importance for ensuring safe production in this project. The company will, in accordance with the requirements of the expert group, further refine the design elements to ensure that all aspects of the design meet relevant standards and are practical. The site where the pyrolysis phase of the 15 million tons per year demonstration project for the clean and efficient conversion of coal into various products, carried out by Shaanxi Coal Group Yulin Chemical Co., Ltd., is planned to be located in the Qingshui Industrial Park of the Yushen Industrial Zone. The construction scope includes: a 1.2 million tons per year pulverized coal thermal cracking unit, a 500,000 tons per year coal tar hydrogenation complex, a 100,000 tons per year gas desulfurization unit, a 420,000 tons per year process wastewater treatment plant, as well as supporting storage, transportation, and power supply systems. The total investment for the project is 3,203.96 million yuan, and it is currently in the detailed design phase. The pyrolysis startup project primarily utilizes the raw coal from Xiaobaodang Mines No. 1 and No. 2, as well as Caojiatan Mine. This coal is ground into powder and then treated using low-temperature pyrolysis technology. The resulting pyrolyzed coke is used in gasification processes for downstream applications, while the coal tar components are processed through a suspended-bed combined hydrogenation process to produce coal tar products. The waste heat generated by the processing equipment is recovered and utilized in the 1.8 million tons per year ethylene glycol production facility. The “Demonstration Project for the Production of Chemical New Materials through the Differential Utilization of Coal” undertaken by Yulin Chemical of Shaanxi Coal Group is currently the largest coal chemical project under construction in the world. This project was planned and developed by Shaanxi Coal Group, taking advantage of the resource advantages in northern Shaanxi, following a completely new industrial organization model. The total area of the project is approximately 13 square kilometers, and it includes 27 processing units along with the associated utility systems. These units are mainly used for the medium- and low-temperature pyrolysis of 15 million tons of coal, as well as the production of 5.6 million tons of methanol, 1.8 million tons of ethylene glycol, 2 million tons of polyester, and 2 million tons of olefins; downstream products are also manufactured using these materials as intermediate inputs. The annual amount of coal processed exceeds 20 million tons, with an estimated total investment of over 120 billion yuan. The project will be constructed in two phases and four stages, with the investment for Phase 1 amounting to approximately 70 billion yuan. The 1.8 million tons per year ethylene glycol project is the first phase of this initiative; it is also the largest coal-based ethylene glycol production facility under construction worldwide. The estimated investment for this project is 26.5 billion yuan, with the goal of producing qualified products by June 2021. The entire project is expected to be completed and put into operation by 2025. The 1.8 million tons per year ethylene glycol project utilizes Collin’s patented dry powder gasification technology, as well as Japan’s Takahashi’s patented technology for producing ethylene glycol from syngas. Shaanxi Coal Group Yulin Chemical Co., Ltd. and Nippon Kako Kagaku Co., Ltd. jointly invested in establishing Shaanxi Coal Group Yulin Chemical Yugao Chemical Co., Ltd., to build and operate facilities for the production of oxalate esters as well as for the hydrogenation of oxalate esters to produce ethylene glycol. This is the largest Sino-Japanese joint venture to be established in Shaanxi since 2005. The second phase of the first stage of the demonstration project for the use of coal in various ways to produce new chemical materials consists of an olefin production facility with a capacity of 2 million tons per year, along with related deep-processing units; it is expected to be completed and put into operation by the end of 2023. Phase 2 focuses on coal pyrolysis and is also divided into 2 stages: the first stage is the pyrolysis startup project, which will be constructed simultaneously with the ethylene glycol project, with completion and commissioning scheduled for June 2021 ； In the second phase, the scale of pyrolysis will be increased to 15 million tons, and the coal tar industry chain will be expanded to produce downstream products containing arylene compounds. Construction is scheduled to begin by the end of 2021, with operations set to start by the end of 2025.