Thermogravimetric characteristics of corn straw and bituminous coal copyrolysis based the ilmenite oxygen carriers

作     者：Pengxing Yuan Xiude Hu Jingjing Ma Tuo Guo Qingjie Guo Pengxing Yuan;Xiude Hu;Jingjing Ma;Tuo Guo;Qingjie Guo

作者机构：College of Chemical EngineeringQingdao University of Science&TechnologyQingdao 266042China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical EngineeringNingxia UniversityYinchuan 750021China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2024年第68卷第4期

页      面：8-15页

核心收录：

学科分类：081702[工学-化学工艺] 080703[工学-动力机械及工程] 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] 

基　　金：support by the Key Research and Development Program of Ningxia Province of China(2018BCE01002) funded by the Joint Funds of the National Natural Science Foundation of China(U20A20124) the Natural Science Foundation Project of Ningxia(2022AAC01001) 

主　　题：Oxygen carrier Co-pyrolysis Biomass Coal 

摘      要：Herein,the co-pyrolysis reaction characteristics of corn straw(CS)and bituminous coal in the presence of ilmenite oxygen carriers(OCs)are investigated via thermogravimetry coupled with mass *** results reveal that the participation of OCs weakens the devolatilization intensity of *** the CS blending ratio is50%,the mixed fuel exhibits positive synergistic *** fitting results according to the Coats-Redfern integral method show that the solid-solid interaction between OCs and coke changes the reaction kinetics,enhancing the co-pyrolysis reactivity at the high-temperature zone(750-950
C).The synergistic effect is most prominent at a 30%CS blending ratio,with copyrolysis activation energy in the range of 26.35-40.57 kJ·mol^(-1).