The mechanical completion of the air separation unit for the China Coal Yulin Coal Deep Processing Base project has been achieved

Thread Content

On December 17, the mechanical completion of the air separation unit for the China Coal Yulin Coal Deep Processing Base project, which is under the general contract of Hualu Company of China Chemical Engineering, was achieved. The China Coal Yulin Coal Deep Processing Base project uses coal as raw material to produce 2 million tons per year of methanol, with further processing to yield 700,000 tons per year of olefins. The project utilizes three electric-driven air separation units with a capacity of 85,000 Nm³/h each (for oxygen), resulting in an overall oxygen production capacity of 255,000 Nm³/h. This represents the first application of 40-megawatt-class high-power motors in the field of air separation for coal chemical applications in China, and the project has been included in the list of **Key Technical Equipment Application Demonstration Projects**. During the ceremony, the project manager reported on the mechanical completion of the air separation unit. Since the commencement of pile foundation work in August 2024, the project team has worked tirelessly for 16 months, overcoming technical challenges one by one, breaking through construction bottlenecks, completing the mechanical installation ahead of schedule, and setting a new record for the construction of similar installations. Next, the project team will make every effort to advance the subsequent work of the project, ensuring high-quality conduct of joint commissioning, performance testing, and stable operation, so as to deliver a top-quality project to the client. China Coal Shaanxi Yulin Energy Chemical Group Co., Ltd. is a wholly-owned subsidiary of China National Coal Group Corporation Limited. With a registered capital of 11.077 billion yuan, it is located in the Yuheng Industrial Park in Yuyang District, Yulin City, Shaanxi Province. The first phase of the facility has an annual production capacity of 2.05 million tons of methanol and 600,000 tons of polyolefins, along with supporting utility systems; it was completed and put into operation in July 2014. The China Coal Yulin Advanced Coal Processing Base project is the first large-scale coal chemical project approved by the Ministry of Ecology and Environment since the introduction of the \"dual carbon\" goals. With a total investment of 23.888 billion yuan, it is located in the southern area of the energy and chemical industry zone in the Yuheng Industrial Zone. The main components of this project include the production of 2.2 million tons per year of methanol and 900,000 tons per year of polyolefins; at the same time, the existing first-phase coal chemical facility will be upgraded, with the construction of a facility for the production of 250,000 tons per year of LDPE/EVA, as well as related supporting projects. The main units of the project include air separation, gasification, purification, sulfur recovery, methanol synthesis, MTO, olefin separation, 3 polyolefin units, and 1 EVA unit, among others. The gasification unit utilizes the gasification patent technology of Air Products and Chemicals Inc., namely the semi-waste boiler process water-coal slurry gasification technology, and is overall contracted by Sinochem Tianchen Company.