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对煤、秸秆与Fe2O3以不同质量掺混比混合后化学链燃烧过程中载氧体还原/再生的多循环反应特性进行了研究,重点分析了固体燃料带入的灰分对化学链反应速率的影响以及秸秆的掺入对化学链反应的改善.结果表明:载氧体Fe2O3质量掺混比的增大有利于化学链反应的进行,燃烧起始反应温度降低;Fe2O3作为载氧体受灰分积累的影响较大,其可持续循环能力较差;煤中掺入秸秆改善了煤的化学链燃烧特性,提高了燃烧反应速率和载氧体的再生反应速率.
The multi-cycle reaction characteristics of oxygen carrier reduction / regeneration during chemical chain combustion were studied for the mixture of coal, straw and Fe2O3 with different mass ratios, and the effect of ash content brought by solid fuel on the chemical chain reaction rate And the incorporation of straw into the chemical chain reaction.The results show that the increase of the mass blending ratio of Fe2O3 is conducive to the chemical chain reaction and the initial combustion temperature decreases.The Fe2O3 as an oxygen carrier is accumulated by ash The influence is larger, and its sustainable cycling ability is poorer. The incorporation of straw in coal improves the chemical chain combustion characteristics of coal and improves the combustion reaction rate and the regeneration reaction rate of oxygen carrier.