【摘要】 本文就双组分精馏计算中最小回流比确定提出了一种简便方法。通过选择指数函数为基函数,将物系的汽液平衡数据,用最小二乘法拟合成平衡曲线方程,再与相应的方程联立求解,从而求得挟点及最小回流比。文中给出了计算实例,所有计算的相对误差均在1％左右。更多还原

【Abstract】 A simple and convenient method for the evaluation of minimum reflux ratio in the calculation of binary system distillation is offered. The VLE data of the system are fitted to equilibrium curve equations by a least-square method with the selection of exponential function as a basis function, and then the pinch point and minimum reflux ratio are evaluated by the combination of equilibrium curve equation and corresponding equation. Some examples are given and all the relative errors of calculation are about 1%.更多还原