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The isothermal shift unit for the first phase of YuNeng Chemical’s 1.2 million tons per year coal-based ethylene glycol production project was put into operation. Author/Source: Refining and Petrochemical News. Date: December 17, 2019. Views: 476. On December 13, 2019, the commissioning ceremony for the 400,000 tons per year unit of the first phase of this project, carried out by Shaanxi Yulin Energy Group Co., Ltd., was held in Nanjing, Jiangsu. Units such as Yulin Energy Group, China Tianchen Group, and the patent holder Nanjing Dunxian Company participated in this meeting. It is understood that this project was planned by Yulin Energy Group in line with the city’s strategies for the development of its coal chemical industry, which focus on transformation and upgrading, as well as on pursuing high-end and clustered development. The shift unit for this project utilizes the \"two-stage isothermal shift technology\" developed by Nanjing Dunxian Chemical Technology Co., Ltd. This technology has been successfully applied in large-scale facilities such as Air Products’ 1 million-ton ethylene glycol plant in the United States, Zhejiang Petrochemical’s 40 million-ton integrated refining and chemical processing plant, and Ningxia Baofeng’s 2.2 million-ton methanol plant. It offers advantages such as lower investment costs, simpler operation, and reduced energy consumption, thereby providing a technical foundation for the successful implementation of the shift unit in this ethylene glycol project. Regarding Dunxian, Nanjing Dunxian Chemical Technology Co., Ltd. is a high-tech private enterprise founded by Wang Qingxin. The company was established in 2009 with a registered capital of 10 million. The company is primarily engaged in the research, development, and promotion of technologies related to synthetic ammonia, methanol, ethylene glycol, dimethyl ether, formaldehyde, methyl acetate, as well as the purification of raw gases used in synthetic ammonia production. It currently holds nearly twenty patent technologies; some of these technologies surpass those available in China, placing the company at the forefront of the country in terms of energy efficiency and environmental protection. The relevant patent technologies have been successfully implemented in industrial facilities. Nanjing Dunxian Chemical Technology Co., Ltd. has developed an \"energy-saving water-mediated heat transfer conversion process for deep conversion\" suitable for CO conversion processes under various conditions and requirements, along with corresponding water-mediated heat transfer isothermal reactors (patented products). To date, more than 40 companies have successfully implemented this technology; it has achieved excellent results during operation. The company’s technical level is among the best in China, with a market share of over 65%. Notable large-scale applications of this technology include a 1 million-ton ethylene glycol production facility operated by Air Products and Chemicals in the United States, a 2.2 million-ton methanol plant in Ningxia Baofeng, a 1 million-ton alcohol-ammonia production facility in Shandong Hualu Hengsheng, a 2 million-ton coal-to-oil plant in Inner Mongolia Yitai, a 900,000-ton methanol plant in Anhui Haoyuan, a 400,000-ton polyamide production facility operated by Huisheng Engineering, a 700,000-ton ammonia synthesis plant in Anhui Haoyuan, a 500,000-ton ethylene glycol plant in Inner Mongolia Jiutai, and a 500,000-ton ammonia synthesis plant in Shandong Luxi Chemical.