分离工程网络授课(高起专)之习题课计算2.2(4)

几点说明 Supplements to Fenske eq.： 3. Another form of Fenske equation

xLD xHB lg x / x HD LB Nm lg L , H

A more convenient form of Fenske equation is obtained by replacing the product of the molar-fraction ratios by the equivalent product of moledistribution ratio in the form of component distillate and bottoms flow rates. 摩尔分率用摩尔数、体积或重量比来代替。

d d lg / b L b H Nm lg L, H

d/b : distribution ratio分配比; d: component flow rate (molar) in distillate; b: component flow rate (molar) in bottoms

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