Abstract
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.
基金项目
Key Research and Development Program of Ningxia Province of China(2018BCE01002)
Joint Funds of the National Natural Science Foundation of China(U20A20124)
Natural Science Foundation Project of Ningxia(2022AAC01001)
NETL
NSTL
万方数据