计算精馏塔理论塔板数和适宜加料板位置的新方法（Ⅰ）

计算精馏塔理论塔板数和适宜加料板位置的新方法（Ⅰ） NEW METHOD ON CALCULATION OF THE NUMBER OF THEORETICAL STAGES AND FEED POIND IN THE DISTILLATION COLUMN 马玉龙 Ma Yulong 1 2 3 first-author 周新花 Zhou Xinhua 1 2 3 郑洁修 Zheng Jiexiu 1 2 3 武汉大学化学系 武汉大学化学系 Department of Chemistry, Wuhan University Department of Chemistry, Wuhan University 武汉大学化学系,武汉 武汉大学化学系,武汉 ,430072 ,430072 以馏出液组成x 、 残液组成x 变 化对精馏操作线斜率的影响,利用x = 1.0、x = 0.0时精馏操作线与平衡线的简单解,导出了计算精馏塔理论塔板数和加料板位置的JDM改进关联式,该式直接将理论塔板数和操作参数关联,既可用来计算理论塔板数,又可用来确定加料板位置,其精度优于JDM和Gilliland关联式。 Considering that the changes in composition of distillate x and bottom x affect the slops of the operating lines, using the roots of operating line and equilibrium line in x d =1.0 and x w = 0.0, a correlation improved JDM is developed. It correlates the number of theoretical stages with the operating parameters directly. Not only the number of stages can be calculated, but feed point also can be determined. The errors to calculate them are smaller than the errors of JDM and Gilliland’s correlation. 精馏 精馏计算 精馏塔设计 distillation calculation of distillation distillation column design TQ028.13 1993-03-01 2021-04-01 3