【摘要】 为探讨微波辅助加热技术对添加吸波剂Si C后的CaO基CO₂吸附剂反应吸附性能和吸附容量稳定性的影响，本研究通过制备不同粒径SiC与CaCO₃组合的纳米CaO基吸附剂，并利用热重分析仪（TGA）评估吸附剂的吸附性能和吸附容量稳定性，同时通过微波加热管式炉进一步研究了不同Si C含量对吸附剂吸附容量稳定性的影响。结果表明，最佳吸附剂粒径组合为150μm的Si C与0.06μm的CaCO₃，其中Si C粒径为150μm且含量为20%（质量分数）的吸附剂在第14次和第20次循环后，相比传统电加热，经过微波辅助加热后其吸附容量分别提高了0.47 mol/kg和0.63 mol/kg。此外，比表面积测试结果显示，微波辅助加热有助于保持吸附剂的孔径结构，减少烧结现象，从而显著提高吸附容量的稳定性。研究表明，微波辅助加热技术能有效提高CaO基CO₂吸附剂的吸附性能和循环稳定性，优于传统电加热方法。更多还原

【Abstract】 The aim of this study was to investigate the effect of microwave-assisted heating technique on the reactive adsorption performance and adsorption capacity stability CaCO₃ combinations were prepared, and the adsorption performance and adsorption capacity stability were evaluated using a thermogravimetric analyser（TGA）, and the effects of different SiC contents on the adsorption capacity stability of the adsorbents were further investigated by microwave-heated tube furnace. The experimental results showed that the optimal adsorbent particle size combination was 150 μm SiC and 0.06 μm CaCO₃, in which the adsorbent with 150 μm SiC particle size and 20% content increased the adsorption capacity of microwave-assisted heating compared with conventional electric heating by 0.47 mol/kg and 0.63 mol/kg after the 14 th and 20 th cycles, respectively. In addition, the specific surface area test results showed that microwave-assisted heating helped to maintain the pore size structure of the adsorbent and reduce the sintering phenomenon, thus significantly improving the stability of the adsorption capacity. The study showed that the microwave-assisted heating technique could effectively improve the adsorption performance and cyclic stability of CaO-based CO₂ adsorbent, which was better than the traditional electric heating method.更多还原