On December 18, a reporter learned from the Coal Gasification Engineering Research Center at the Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences, that China's independently developed ash-fusion coal gasification technology successfully completed a 72-hour pressurized gasification test on a semi-industrial experimental unit in Taiyuan. The test results confirmed that the technology is now ready for industrial demonstration. This marks another significant milestone in China’s journey toward self-reliance in coal gasification technology.
Ash-fusion coal gasification is a groundbreaking technology developed in the early 1990s in China, with no similar models worldwide. It offers strong adaptability to different coal types and lower capital investment. In 2001, the technology achieved success in atmospheric pressure industrial demonstration. To meet the growing demand for large-scale coal gasification and accelerate its commercialization, in April 2005, the Shanxi Provincial Development and Reform Commission approved the establishment of the Pulverized Coal Gasification Engineering Research Center in Shanxi, jointly operated by Jincheng Anthracite Mining Group and the Shanxi Institute of Coal Chemistry.
The center invested 35 million yuan to build a semi-industrial pressurized ash-fusion platform, which was completed by the end of 2006. It was ignited on December 11, 2007, and ran continuously for 72 hours, concluding on the afternoon of the 15th. During the test, officials and experts from various provincial departments, including the Development and Reform Commission, Economic Commission, Chemical Industry Office, Second Design Institute of Chemical Industry, and Sinopec Engineering Construction Co., Ltd., visited the site to observe and provide guidance.
The operation conditions of the semi-industrial platform closely mirror those of actual industrial equipment. All data collected during the test can serve as a foundation for designing full-scale industrial gasification systems. The platform is designed to operate at pressures between 1 and 3 MPa, and in 2008, higher-pressure tests will be conducted to further validate the technology.
At the experimental site, Ma Xiaoyun, chief engineer of the Coal Gasification Engineering Research Center, shared insights with the reporter. He noted that the pressurized test ran smoothly for 76 hours, with a daily coal processing capacity of 60 tons. Key technical indicators met design specifications, and the pressure amplification design and critical equipment were successfully verified. Based on the test results, an industrial-scale gasifier operating at 1 MPa could increase its daily coal processing capacity from 100 tons under normal pressure to 500–600 tons. A single unit could support ammonia production of 100,000 to 12.2 million tons annually.
Additionally, the system can cut synthetic gas compression energy consumption by 50%, offering a viable solution for many small and medium-sized chemical fertilizer companies across China. This breakthrough underscores the potential of China’s homegrown coal gasification technology to reshape the energy and chemical industries.
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