Abstract: The principles of mass and heat transfer for non-isothermal gas absorption with chemical reaction have been applied to the derivation of a mathematical model describing the complexing of carbon monoxide with aluminum cuprous tetrachloride in toluene and the absorption of carbon dioxide with aqueous monoethanolamine, both in packed columns. The fundamental differential equations of the process were treated with the fourth-order Runge-Kutta method, leading to the establishment of the temperature and concentration profiles for both the gas and liquid phases along the packed height. The results conform reasonably well with pilot plant data.

摘要： 本文阐述了伴有化学反应的绝热吸收填料塔设计中的质量和热量传递过程;提出了包括气膜和液膜阻力、气相和液相传热、传质并存时,较为精确的数学模型.以一氧化碳在四氯化亚铜铝-甲苯溶液中的络合吸收和二氧化碳在乙醇胺水溶液中的络合吸收为例,合理地推导和选用了过程中各种特性参数——增强因子和传质系数等,考虑了传质和传热过程之间的相似性和相互影响,运用此数学模型,并用四次Runge-Kutta法求解微分方程组.以PDP-11/23计算机进行计算,得到不同操作条件下的常压和加压数据.所获相应各组的气相、液相沿填料层的温度分布和浓度分布曲线,其变化情况的图形清晰明瞭,规律性与理论分析一致,且与模型试验实测数据吻合较好.可为工程设计和操作控制提供依据,也可供伴有不同化学反应的绝热塔设计参考.