Mass Loss Behavior and Volatile Composition during Pyrolysis of a Bituminous Coal

作     者：Fan Junfeng Tian Bin An Xiaoxi Zhang Yaqing Yin Mengmeng Tian Yuanyu 

作者机构：College of Chemical and Environmental Engineering Shandong University of Science and Technology Advanced Chemical Technology for Utilization of Northern Shaanxi Energy of the Engineering Research Center of the Ministry of Education Shaanxi Research Center of Engineering Technology for Clean Coal Conversion School of Chemical Engineering Northwest University 

出 版 物：《China Petroleum Processing & Petrochemical Technology》 (中国炼油与石油化工（英文版）)

年 卷 期：2018年第20卷第4期

页      面：44-50页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0821[工学-纺织科学与工程] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：financial support from the National Natural Science Foundation of China (Grant Nos. 21576293 and 21576294) 

主　　题：fast pyrolysis bituminous coal kinetics volatiles 

摘      要：The thermogravimetry analyzer coupled with the pyrolysis gas chromatography/time-of-flight mass spectrometry technology was used in this study to investigate the mass loss behavior and volatile release characteristics of a bituminous coal. The results showed that with an increasing heating rate, the characteristic parameters and TG/DTG curves shifted obviously to the higher temperature region. The pyrolysis of a bituminous coal at different heating rates can be divided into two stages according to the Coats-Redfern(C-R) plots. The activation energy obtained from the C-R method is 50.21—85.14 kJ/mol and 5.14—7.24 kJ/mol at a heating rate range of 8—300 °C/min for the first and second pyrolysis stages, respectively. Aromatic hydrocarbons were dominant in the volatile products during fast pyrolysis of the coal, followed by the olefins, whereas the phenols were the third major components. With the increase of pyrolysis temperature, the heavy components in the volatile species increased; meanwhile the phenol cracking reactions were intensified. The carbon number of olefins was mainly concentrated in 3—9, and the aromatics were mainly composed of the compounds of C_6—C_(13).This study can provide a basic reference for fast pyrolysis of coal and other thermal chemical conversion processes.