【作者】 张志炳； 梁银春； 吴有庭； 周政；

【Author】 Zhang Zhibing , Liang Yinchun , Wu Youting , Zhou Zheng (Separation Engineering Research Center, Nanjing University, Nanjing 210093)

【机构】 南京大学分离工程研究中心；

【摘要】 通过非平衡热力学节能原理,建立了板式塔精馏的熵增速率教学模型。该模型不仅能够用于不同操作工艺下的塔板用能计算,而且更重要的是能够对不同塔板结构参数和不同液相流型情况引起的熵增大小进行评估。因此,该模型可以用于指导节能新结构塔板的开发与设计。通过本研究,对节能型塔板必须具备的基本结构提出了建议。更多还原

【Abstract】 A general mathematical model based on the principal of non - equilibrium thermodynamics is proposed for analyzing the energy consumption of trayed column distillation processes. It can be used not only to calculate the energy consuming in different operational conditions, but also more importantly to evaluate the entropy generation rate (EGR) of the different tray structures and different liquid flow patterns on the tray of the column. Therefore, this model might be suitable for the technical instructions in the design of a new energy - saving tray. Through this study the basic structural characteristics for an energy - saving tray has been suggested.更多还原