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Research on the evolvement of morphology of coking coal during the coking process
Authors:Xiangyun Zhong  Shiyong Wu  Yang Liu  Zhenning Zhao  Yaru Zhang  Jinfeng Bai  Jun Xu  Bai Xi
Institution:1. Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China;2. School of Resource and Environment, East China University of Science and Technology, Shanghai 200237, China;1. State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China;2. School of Energy and Environment, Southeast University, Nanjing 210096, China;3. Fuels and Energy Technology Institute and Department of Chemical Engineering, Curtin University of Technology, G.P.O. Box U1987, Perth, Western Australia 6845, Australia;1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Avenue, Qingshan District, Wuhan 430081, PR China;2. Liaoning Chengda Co. Ltd., No. 71 Renmin Road, Zhongshan District, Dalian 116000, PR China;3. Xinjiang BaoMing Mines Co. Ltd., No. 21 Wenhua Road, Jimsar 831700, PR China;1. Testing and Aanlysis Center, Hebei Normal University, Shijiazhuang 050024, PR China;2. College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang 050024, PR China;3. Department of Chemistry, Handan College, Handan 056005, PR China;1. School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, PR China;2. State Key Laboratory of Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, PR China;1. University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac 102A, HR-10000, Zagreb, Croatia;2. Cargill Food Ingredients & Bio-Industrial, Cargill, 84 Havenstraat, Vilvoorde, Vlaams-Brabant, 1800, Belgium
Abstract:The evolvement of morphology and structure of the coal with different metamorphic degrees during coking process in the vertical furnace was investigated by infrared Image detector. Moreover, the temperature distribution in the radial direction and the crack formation were also studied in heating process. The results show that the amount of crack and the shrinkage level of char decrease with the coal rank rising. In addition, the initial temperature of crack formation for char increases with the coal rank rising.
Keywords:coking coal  coking process  surface morphology  infrared imaging
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