温浩; 许志宏
WEN Hao; XU Zhihong
摘要: In this paper the group concept and UNIFAC group contribution method have been discussed andextended.A method of on-line data processing for UNIFAC group interaction parameters based on therelevant component properties stored in data base has been proposed.Results of predicting vapor-liquid equilibria for 22 systems by on-line processing parameters are compared with those by original(off-line)parameters,the accuracy of prediction is improved considerably.