Review Meeting for the Process Package of the Olefin Separation Unit in Yulin Chemical’s 15 million tons/year Demonstration Project for Clean and Efficient Conversion of Coal by Grade

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Investment of 176 billion yuan: New progress in Shaanxi coal chemical project 2025-03-13 Recently, a review meeting for the process package related to the olefin separation unit in the first phase of the 15 million tons per year demonstration project for clean and efficient conversion of coal into various products, carried out by Yulin Chemical Company of Shaanxi Coal Group (referred to as “Phase 1 of Phase 2”), was held at the Beijing branch of China National Heavy Machinery Corporation. At the meeting, the patent holder LUMMUS Company provided a detailed report on the process package. In accordance with relevant standards such as the \"Specifications for the Content of Process Design Packages for Petrochemical Plants,\" the participants conducted a thorough review of the process package design. They held comprehensive and detailed discussions on various aspects including the process flow, equipment and instrumentation, flare emissions, and instrument interlock logic, and proposed optimization suggestions. China Global Engineering Co., Ltd. and LUMMUS Company commit to strictly updating the documents and optimizing the design in accordance with the review comments, and to making immediate corrections based on the minutes of the meetings related to the key milestones and process packages for the first phase of Yulin Chemical Project 2, so as to ensure that issues are resolved promptly and subsequent work is completed with high quality. During this review, 100 issues were identified, and detailed suggestions for modification were formulated to clarify the directions for improving the process package as well as the key problems, thereby laying a solid foundation for the design optimization and construction of the olefin separation unit. On March 5, the groundbreaking ceremony for Bid 1 of the construction work related to the first-phase underground pipeline network in the second-phase, Phase 1 project of Yulin Chemical was held on site. This marked the official transition of Phase 1 of what is currently the world’s largest coal chemical project – the “15 million tons per year demonstration project for clean and efficient conversion of coal into olefins, aromatics, and other products” (abbreviated as the Second-Phase, Phase 1 project) – from the planning and design stage to the actual construction phase. The underground pipeline network throughout the plant serves as its \"underground lifeline,\" responsible for transporting essential energy resources such as water, electricity, and gas. It is a central system that ensures the proper operation of processes, the efficient circulation of energy, and compliance with environmental regulations. This milestone is one of the 45 key milestones in the construction of the Phase 1 of Yulin Chemical Project 2, and it represents the first major milestone in 2025, following the tasks of site preparation and dynamic compaction. Phase 1 of Project Phase 2 utilizes 9 3,500-ton-class space furnaces (based on the space coal gasification technology), integrating a range of industry-leading technologies to create the world’s largest coal-based cogeneration system. The project focuses on the clean and efficient conversion of coal into different grades of products, establishing a full industrial chain that goes from coal to syngas, then to olefins/aromatics, and finally to high-value new materials. It is designed to produce over 4 million tons per year of chemical products such as polyolefins and aromatics, thereby enabling the transformation of coal from a fuel source into materials with high added value. At the same time, the project includes the construction of a million-ton-scale CCS (carbon capture and storage) facility, and it employs zero-waste-water discharge technology to ensure that pollutant emissions are at extremely low levels, thereby promoting the green and low-carbon transformation of the coal chemical industry.