In this research, the significant environmental process of CO 2 capture is investigated into an aqueous blended MDEA + TMS solution using a stirrer reactor experimentally and numerically. The experiments were designed based on the response surface methodology (RSM) under operating conditions of a pressure range of 2–8 bar, a temperature range of 20–70 °C, MDEA, and TMS concentration range of 10–20 wt%. The results indicated that by enhancing the initial pressure from 3.5 to 8 bar, the equilibrium CO 2 loading increases by 17.8%. Based on RSM and central composite design method, the maximum values of CO 2 loading and absorption percentages were 0.308% and 72.73%, respectively, at appropriate conditions of the temperature of 32.5 °C, the pressure of 3.5 bar, and MDEA and TMS concentrations of 12.5 wt%. A new relation for CO 2 loading was correlated with a correlation coefficient of 0.994, as a function of studied independent variables. The environmental issue of CO 2 absorption into an aqueous blended MDEA+TMS solution is studied. The CO 2 loading and absorption rate are maximized under optimal operating conditions. A new correlation for CO 2 loading is modeled as a function of independent variables based on RSM method. Equilibrium CO 2 loading was predicted by solving VLE, chemical equilibrium constant, mass and charge balance equations. Effects of temperature on species concentrations in liquid bulk were presented.

中文翻译：

---

CO2 反应吸收到混合的 MDEA 和 TMS 溶液中：实验和建模

在这项研究中，使用搅拌反应器通过实验和数值方法研究了 CO 2 捕获的重要环境过程到混合的 MDEA + TMS 溶液中。实验是基于响应面方法 (RSM) 在压力范围为 2–8 bar、温度范围为 20–70 °C、MDEA 和 TMS 浓度范围为 10–20 wt% 的操作条件下设计的。结果表明，通过将初始压力从 3.5 bar 提高到 8 bar，平衡 CO 2 负载增加了 17.8%。基于RSM和中心复合设计方法，在温度32.5℃、压力3.5bar、MDEA和TMS浓度合适的条件下，CO 2 负载和吸收百分比的最大值分别为0.308%和72.73% 12.5 重量％。作为研究的自变量的函数，CO 2 负载的新关系与相关系数0.994相关。研究了将 CO 2 吸收到混合 MDEA+TMS 水溶液中的环境问题。在最佳操作条件下，CO 2 负载和吸收速率最大化。CO 2 负荷的新相关性被建模为基于RSM 方法的自变量的函数。通过求解 VLE、化学平衡常数、质量和电荷平衡方程来预测平衡 CO 2 负载。介绍了温度对液体本体中物质浓度的影响。在最佳操作条件下，CO 2 负载和吸收速率最大化。CO 2 负荷的新相关性被建模为基于RSM 方法的自变量的函数。通过求解 VLE、化学平衡常数、质量和电荷平衡方程来预测平衡 CO 2 负载。介绍了温度对液体本体中物质浓度的影响。在最佳操作条件下，CO 2 负载和吸收速率最大化。CO 2 负荷的新相关性被建模为基于RSM 方法的自变量的函数。通过求解 VLE、化学平衡常数、质量和电荷平衡方程来预测平衡 CO 2 负载。介绍了温度对液体本体中物质浓度的影响。