Research progress of low-order coal pyrolysis process and semi-coke production process
NING Xiao-jun1,2, DANG Han1, ZHANG Jian-liang1, WANG Guang-wei1, ZHANG Nan1, YUE Huai-zhong3
1. School of Metallurgy and Ecological Engineering, University of Science and Technology Beijing, Beijing100083, China; 2. Guanzhuang Campus, University of Science and Technology Beijing, Beijing 100083,China; 3. Project Department, Henan Hongqi Coal Industry Co., Ltd., Zhengzhou 450000, Henan, China
Abstract：Nowadays, fossil energy is increasingly depleted, so it is necessary to make full use of existing resources and develop new renewable resources. The low-rank coal has high volatilization, good combustion and reactivity, and direct combustion cannot fully explore its potential value. Pyrolysis technology, as a kind of technology that can utilize coal resources efficiently, has attracted more attention from many scholars. According to the characteristics of low-rank coal reactivity in different conversion stages, blue carbon can be prepared by controlling coal pyrolysis. The gasification activity of blue carbon powder is better than that of coke powder and anthracite powder, when used in blast furnace injection, the mixed injection of blue carbon and anthracite can also improve the injection performance of mixed coal and promote the steady production of the blast furnace. Blue carbon has become a new type of carbon material with high fixed carbon, high chemical activity, low ash content, low phosphorus, and low sulfur, the production and preparation technology of blue carbon has also become a hot topic for many scholars. The global energy consumption and the energy structure of our country in recent years, introduces some low-order coal pyrolysis processes, the application of blue carbon in blast furnace injection and sintering, and the production process of blue carbon was analyzed briefly. The properties of blue carbon and common fuel in the blast furnace are compared. The prospect of low-order coal pyrolysis process and blue carbon production process is prospected. It is suggested that the development of the large scale, automatic, and environment-friendly plant is the development trend of the pyrolysis process in the future.
宁晓钧, 党晗, 张建良, 王广伟, 张楠, 岳怀忠. 低阶煤热解与兰炭生产工艺研究进展[J]. 钢铁, 2021, 56(1): 1-11.
NING Xiao-jun, DANG Han, ZHANG Jian-liang, WANG Guang-wei, ZHANG Nan, YUE Huai-zhong. Research progress of low-order coal pyrolysis process and semi-coke production process[J]. Iron and Steel, 2021, 56(1): 1-11.
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2021, Vol. 56 
