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

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外文摘要：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 spectrometry.The results reveal that the participation of OCs weakens the devolatilization intensity of co-pyrolysis.When the CS blending ratio is＜50％,the mixed fuel exhibits positive synergistic effects.The fitting re-sults 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 ℃).The synergistic effect is most prominent at a 30％CS blending ratio,with copy-rolysis activation energy in the range of 26.35-40.57 kJ·mol-1.

外文关键词：

Oxygen carrierCo-pyrolysisBiomassCoal

作者：

Pengxing Yuan、Xiude Hu、Jingjing Ma、Tuo Guo、Qingjie Guo

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作者单位：

College of Chemical Engineering,Qingdao University of Science & Technology,Qingdao 266042,China

State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering,Ningxia University,Yinchuan 750021,China

基金：

Key Research and Development Program of Ningxia Province of ChinaJoint Funds of the National Natural Science Foundation of ChinaNatural Science Foundation Project of Ningxia

项目编号：

2018BCE01002U20A201242022AAC01001

出版年：

2024

DOI：

10.1016/j.cjche.2023.12.013

中国化学工程学报(英文版)

中国化工学会

中国化学工程学报(英文版)

CSTPCDEI

影响因子：0.818

ISSN：1004-9541

年,卷(期)：2024.68(4)

参考文献量25