蔡志亮,祝一峰,陈时忠,姚允斌,黄棨
Cai Zhiliang, Zhu Yifeng, Chen Shizhong, Yao Yunbin (Department of Chemical Engineering, Zhejiang Institute of Technology, Hanghou) Huang Qi (Tianjin Synthetic Material Industry Research Institute, Tianjin)
摘要: 用已知组成为x_1~(1)的溶液对恒压下稳定运行的平衡釜中的平衡液相(其组成x_1~(0)为待求量)作等质量代换.若代换前后的相平衡温度差T~(0)-T~(1)=0,则x_1~(0)=x_1~(1),即得一泡点(T~(1),x_1~(1));否则,x_1~(0)≠x_1~(1),此时向釜中加入组分1或组分2使温度回到T~(0)附近,改用已知组成为x_1~(2)的溶液作代换.如此反复,直至|T~(n-1)-T~(n)|或|x_1~(n-1)-x_1~(n)|达到所需精度,最后的点(T~(n),x_1~(n))即为泡点.对平衡汽相作同样代换可得到露点值.