Construction begins on the PC unit of Shaanxi Guoneng Yulin Chemical’s 79.8-billion-yuan project

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The PC unit of the 79.8-billion-yuan project developed by Shaanxi Guoneng Yulin Chemical Industry has begun operations. 2025-08-05 On July 30, a meeting regarding the process design for the 260,000-ton/year polycarbonate production unit as part of Shenhua Yulin’s circular economy coal utilization project, carried out by Guoneng Yulin Chemical Industry Co., Ltd., was held at Global Engineering’s Jilin office, along with a preliminary meeting on the basic design. During the meeting, Guoneng Yulin Chemical, Huanqiu Jilin Company, and EPC, the patent holder for polycarbonate technology, had in-depth discussions on key technologies such as the core processes of polycarbonate production, equipment selection, and energy efficiency optimization. The participants reached a consensus on the key milestones for project implementation and identified the priorities for the next phase of work. The main production units of the Shenhua Yulin Circular Economy Coal Comprehensive Utilization Project in Yulin include five process units for coal liquefaction, coal gasification, co-refining of oil and alcohol along with downstream processing, MTO and downstream processing, as well as coal-based biodegradable materials, along with the supporting utility systems. EPC Engineering & Technologies GmbH was awarded the contract for polycarbonate technology licensing, preparation of process packages, training, and technical services, with a contract value of 82.3412325 million yuan. The Shenhua Yulin Circular Economy Coal Comprehensive Utilization Project is located in the northern part of the Qingshui Industrial Park, Yushen Industrial Zone, Yulin City, Shaanxi Province. In May 2014, the Ministry of Environmental Protection approved the Environmental Impact Assessment Report for the China Shenhua Dow Yulin Circular Economy Coal Comprehensive Utilization Project under document No. Huan Shen [2014] 134. The core construction content of the approved chemical industrial zone relies on coal as a raw material, and through processes such as gasification, methanol synthesis, methanol-to-olefins conversion, and the production of olefin derivatives (esters, acids, alcohols, ethers), it aims to produce 2.19 million tons of chemical products per year. The project is implemented in phases. In 2017, construction began on Phase 1, which included a gasification unit with a capacity of 638,000 cubic meters per hour, an air separation unit with a capacity of 3×100,000 cubic meters per hour, a methanol synthesis unit with an annual production capacity of 1.8 million tons, along with the associated auxiliary facilities. Commissioning trials started in December 2020, and the independent environmental protection inspection was completed in August 2021. Shenhua Coal-to-Oil Chemical Co., Ltd. modified the construction details for subsequent phases during the project implementation; using coal as raw material, it produces synthetic oils, polyolefins, biodegradable plastics and other products through processes such as direct coal liquefaction, coal gasification, methanol-to-olefins conversion, and naphtha-methanol coupled cracking. After the project changes, the annual consumption of raw coal for production is 10.4325 million tons, while the annual consumption of fresh water is 22.7979 million cubic meters. The main projects include 38 production units such as direct coal liquefaction, coal gasification, methanol synthesis, methanol to olefins (MTO), and naphtha-methanol coupled cracking ； Auxiliary engineering includes water supply and drainage systems, flare systems, etc ； Storage and transportation engineering includes tank farms, product warehouses, etc ； Environmental protection engineering mainly includes waste gas treatment facilities, wastewater treatment facilities, and solid waste treatment facilities.