The low-temperature pyrolysis technology for solid heat carriers using coal dust developed by the Institute of Thermal Physics, Chinese Academy of Sciences, has passed the evaluation

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On December 19, 2016, the 240-ton/day solid heat carrier low-temperature pyrolysis technology for coal, jointly developed by the Institute of Engineering Thermophysics of the Chinese Academy of Sciences and Shenmu Jinfengyuan Clean Coal Technology Co., Ltd., passed the appraisal organized by the Chinese Coal Society. Based on this process, China’s first pilot-scale unit for the low-temperature pyrolysis of coal using 240 tons per day of high-temperature semi-coke as a solid heat carrier has been built and is operating stably. Since its completion in September 2014, it has undergone four phases of debugging and optimization, enabling continuous and stable operation at full capacity. The 72-hour calibration data show that the pilot plant operated stably, with a tar yield of 9.24%, a dust content in the tar of 0.47%, and a n-heptane-soluble content of 84% – all of which are better than the design values.