Thread Content
Progress on the Construction of the Coal-to-Ethylene Glycol Project at Shaanxi Coal Yulin Chemical – Author/Source: Huahua Network, Coal Chemicals – Date: 2020-07-09 – Clicks: 9. Recently, a 90% three-dimensional model review, as well as a review of operability and maintainability, were conducted on the gasification unit of Shaanxi Coal Group Yulin Chemical’s 1.8 million tons per year coal-to-ethylene glycol project. Representatives from Yulin Chemical of Shaanxi Coal Group, Colin Gasification, the patent provider for the process packages, and the project department of China Tianchen Engineering Co., Ltd. attended this review meeting. This review process features two main characteristics: first, each specialty develops integrated models across all specialties in accordance with the requirements for digital delivery and 3D model review outlined in the EPC contract, enabling the visualization of all elements within the plant and thus laying a solid foundation for digital delivery. Secondly, based on the factory’s operational and design experience, effective communication is carried out with all relevant parties regarding the operability of equipment, pipelines, valves, and instruments, as well as the convenience of maintenance, and adjustments are made in a timely manner. During the review process, the project team of Tianchen Company participated throughout the process in areas such as processes, pipelines, equipment, instrumentation, and electrical systems, providing detailed explanations. By drawing on practical experience from similar projects, they communicated actively with all parties involved to optimize the design and facilitate production operations. The successful conclusion of this review meeting marks the entry of the design work into its final sprint phase. This not only ensures convenience and ease of operation for subsequent running, maintenance, and repairs, but also creates favorable conditions for the procurement of bulk materials needed later in the project as well as for the conduct of on-site construction. On April 3, China National Chemical Engineering Corporation Tianchen and Shaanxi Coal Yulin Chemical Co., Ltd. successfully signed an EPC general contract for the 1.8-million-ton ethylene glycol gasification unit of Phase 1 of the \"Demonstration Project for the Utilization of Coal in Different Ways to Produce New Chemical Materials\" in Yulin. Jiao Zaiyue, Deputy Secretary of the Party Committee and General Manager of Tianchen Company, and Song Shijie, Secretary of the Party Committee and Executive Director of Shanxi Coal Yulin Chemical Company, signed the EPC general contract for the construction of the gasification plant on behalf of their respective parties; the total value of the contract is 1.523 billion yuan. The Shaanxi Coal Group Yulin Chemical Project for the selective utilization of coal to produce new chemical materials is currently the largest coal chemical project under construction in the world. What Tianchen Company has signed for this project is the EPC contract for the first phase, which involves a 1.8 million-ton per year ethylene glycol gasification unit. This unit utilizes the world-leading Collin CCG top-mounted multi-nozzle dry powder coal gasification technology, and it is capable of producing over 700,000 standard cubic meters of syngas per hour – making it the largest Collin dry powder coal gasification demonstration unit in the world at present. The \"Demonstration Project for the Production of New Chemical Materials through the Differential Utilization of Coal\" carried out by Yulin Chemical of Shaanxi Coal Group is currently the largest coal chemical project under construction in the world. The project covers an area of approximately 13 square kilometers, with an estimated total investment of 125 billion yuan. The project is constructed in two phases and four stages, comprising a total of 27 process units along with associated utility systems. These mainly include the medium- and low-temperature pyrolysis of 15 million tons of coal, the production of 5.6 million tons of methanol, 1.8 million tons of ethylene glycol, 2 million tons of MTO, as well as downstream products derived from these intermediates. The first phase of the project is scheduled to come online in June 2021, with the entire project to be completed and operational by the end of 2025. The 1.8 million tons per year ethylene glycol production facility is part of the first phase of this project; it is also the largest coal-based ethylene glycol production plant under construction worldwide. The estimated investment for this facility is 26.5 billion yuan. The project utilizes Collin’s patented dry powder gasification technology and Japan’s Takakaga’s patented technology for producing ethylene glycol from syngas. Shanxi Coal Group Yulin Chemical Co., Ltd. and Nippon Kako Kagaku Co., Ltd. jointly invested in establishing Shanxi 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.