A multi-scale dynamic model for a sorption-enhanced water-gas shift (SE-WGS) fluidized bed reactor was developed and the reactor performance in terms of hydrogen production and carbon dioxide capture was analyzed. K₂CO₃-promoted hydrotalcite sorbent was used as a reference in the SE-WGS fluidized bed reactor and steam methane reforming gas was used as the feed. The sensitivity analysis of the performance was carried out by varying the temperature, pressure, and sorbent circulation rate. The CO conversion achieved at low pressures in the SE-WGS fluidized bed reactor was much higher than the catalytic equilibrium conversion. However, the advantages of the SE-WGS reactor were lost at pressures of over 7 bar. The desired sorption capacity and rate of the CO₂ sorbent were suggested to enhance the performance of the SE-WGS fluidized bed reactor at 30 bar. At a five-time higher sorption capacity, the CO conversion and carbon capture efficiencies could be achieved to 95.0 % and 86.4 %, respectively. In addition, with a simultaneous increase of 1.5 times in the sorption rate, the CO conversion and carbon capture efficiency could be achieved to 99.3 % and 98.2 %, respectively. Because the CO₂ sorption capacity is mainly determined in the mixing zone, the operating conditions need to be finely controlled for the maximum utilization of the sorbent capacity. The study demonstrates the advantages of the SE-WGS fluidized bed reactor for simultaneous H₂ production and CO₂ capture. In addition, the optimization of the sorption capacity and rate of the CO₂ sorbent can provide guidance for the development of high-performance sorbents for application in SE-WGS fluidized bed reactors.

建立了吸附增强水煤气变换（SE-WGS）流化床反应器的多尺度动力学模型，并分析了反应器在产氢和二氧化碳捕获方面的性能。在SE-WGS流化床反应器中，使用K ₂ CO ₃促进的水滑石吸附剂作为参考，并使用蒸汽甲烷重整气体作为进料。通过改变温度，压力和吸附剂循环速率对性能进行敏感性分析。SE-WGS流化床反应器在低压下实现的CO转化率远高于催化平衡转化率。但是，SE-WGS反应器的优势在超过7 bar的压力下就失去了。所需的CO ₂吸附容量和速率建议使用吸附剂来增强SE-WGS流化床反应器在30 bar下的性能。在五倍的吸附容量下，CO转化率和碳捕获效率分别可以达到95.0％和86.4％。另外，吸附速率同时提高1.5倍，CO转化率和碳捕获效率分别达到99.3％和98.2％。由于CO ₂吸附能力主要由混合区决定，因此需要对操作条件进行精细控制，以最大程度地利用吸附剂能力。该研究证明了SE-WGS流化床反应器在同时生产H ₂和CO _{2方面的优势}捕获。此外，优化CO ₂吸附剂的吸附容量和速率可以为开发用于SE-WGS流化床反应器的高性能吸附剂提供指导。