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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 and Bai Xi
Institution:Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China;School of Resource and Environment, East China University of Science and Technology, Shanghai 200237, China;Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China;Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China;Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China;Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China;Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China;Key Lab of Advanced Coal and Coking Technology Liaoning, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114053, China
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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