The high energy consumption of the regeneration is the main barrier of the CO₂ capture system application. The stripper is the primary device for the regeneration process, which involves with the transport process and reactions. It is beneficial for the energy saving to clarify the impacts of the stripper configurations on the heat and mass transfer performance in the stripper. Based on the representative elementary volume method and pseudo-single-liquid model, a novel computational model of heat and mass transfer was developed, in which the H₂O transfer process was also taken into account. The simulation results were compared with the experimental data. The effects of the stripper configurations on the heat and mass transfer performance were investigated, and the energy consumption analysis of different strippers under two representative working conditions was carried out. The results show that the height of stripper is dominant in the heat and mass transfer performance, rather than diameter. When the desorbing rate of CO₂ is above 50%, the desorbing rate of CO₂ increases with the stripper height rising and the specific energy consumption of regeneration process only increases a little.

中文翻译：

---

汽提塔配置对传质和再生过程能耗的影响

再生的高能耗是CO ₂捕集系统应用的主要障碍。汽提塔是再生过程的主要设备，它涉及运输过程和反应。澄清汽提塔构造对汽提塔中的传热和传质性能的影响对于节能是有益的。基于代表性的基本体积法和拟单液体模型，建立了新的传热传质计算模型，其中H ₂还考虑了O转移过程。仿真结果与实验数据进行了比较。研究了汽提塔结构对传热和传质性能的影响，并在两个代表性的工作条件下进行了不同汽提塔的能耗分析。结果表明，汽提塔的高度在传热和传质性能中占主导地位，而不是直径。当CO ₂的解吸率高于50％时，CO ₂的解吸率随着汽提塔高度的增加而增加，再生过程的比能耗仅增加一点。