文献类型：期刊文献

英文题名：Structural and Gasification Kinetic Studies on Co-pyrolysis Chars of Coal and Biomass

作者：Liu, Lang Zeng, Jingsong Jiao, Qingrui Ren, Shan Yang, Jian Su, Xiangdong Cao, Yan Tang, Anjiang

第一作者：刘浪

机构：[1] Guizhou Institute of Technology, China; [2] Chongqing University, China; [3] Guangzhou Institute of Energy Conversion, China

第一机构：贵州理工学院

年份：2021

外文期刊名：ResearchSquare

收录：EI(收录号：20220197564)

语种：英文

外文关键词：Activation energy - Coal - Gasification - Kinetics - Pyrolysis - Thermogravimetric analysis

摘要：In the present study, the CO2 gasification behaviours of the co-pyrolysis chars with coal and biomass as feedstock were investigated using isothermal thermogravimetric analysis (TGA) at 950–1150 °C. The TGA results demonstrated that the char gasification reactivity was improved at higher biomass composition. In addition, the char characteristics results evaluation revealed that biomass promoted the development of a porous structure and inhibited the formation of graphite-like carbon during the co-pyrolysis of coal and biomass. Moreover, an extended random pore model (eRPM) was proposed to define the char gasification kinetics of coal and biomass. It was found that the activation energies of chars decreased with increasing biomass composition. Lastly, the relationship between the gasification reactivity and char characteristics was evaluated. ? 2021, CC BY.