常州大学学报（自然科学版）2026，Vol.38Issue(3)：63-71,9.DOI:10.3969/j.issn.2095-0411.2026.03.008
基于混合矿石/赤泥载氧体的煤化学链燃烧性能研究
Study on the chemical looping combustion of coal using composite ores/red mud oxygen carrier
摘要
Abstract
To solve the problems of oxygen carriers with high cost and easy deactivation in the large-scale implementation of chemical looping combustion technology,it is urgent to develop low-cost and high-performance oxygen carriers.This study used red mud or copper/iron ores as active raw materi-als to prepare oxygen carriers,and then the tests of H2 temperature-programmed reduction and lignite chemical looping combustion based on the targeted oxygen carriers were performed.The results indi-cated that the composite ores oxygen carrier obtained a higher initial reduction reaction temperature than that of pure red mud,and its containing copper ores component also promoted the reduction of i-ron ores.Moreover,the temperature ranges corresponding to different reduction reactions of CuO→Cu and Fe2O3→Fe3O4 were from 348.7℃to 394.9℃and 394.9℃to 465.9℃,respectively.When lignite was used as fuel,the combustion performance of the composite ores oxygen carriers was better than that of red mud in terms of their primary reduction stages(oxygen to fuel ratio being greater than 1.0),while the combustion results during the deep reduction stage were related to the remaining lat-tice oxygen content of oxygen carriers,and only a small amount of Fe3O4 underwent deep reduction under water vapor conditions for composite ores oxygen carrier.Additionally,the superior reducibility of composite ores was further validated through density functional theory.关键词
化学链燃烧/载氧体/混合矿石/赤泥/密度泛函理论Key words
chemical looping combustion/oxygen carriers/composite ores/red mud/density func-tional theory分类
能源科技引用本文复制引用
王亚男,周佳炜,孙运兰,朱宝忠..基于混合矿石/赤泥载氧体的煤化学链燃烧性能研究[J].常州大学学报（自然科学版）,2026,38(3):63-71,9.基金项目
江苏省高等学校基础科学(自然科学)研究面上资助项目(23KJB480002) （自然科学）
江苏省自然科学基金资助项目(BK20240971) （BK20240971）
常州市领军型创新人才引进培育项目D类资助项目(CQ20240120). （CQ20240120）
