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用单循环动态法测定了夹带剂存在下超临界二氧化碳-乙醇-水系统的相平衡数据,实验温度为3082K,压力范围为8~15MPa.提出引进一个夹带剂效应参数K,用以关联在超临界状态下有无夹带剂情况的分离因子,并回归出一个经验方程结果表明,用此经验方程来预测添加夹带剂下SC-CO2-乙醇-水系统的汽液平衡较为满意,其最大平均绝对误差为246%
The single-cycle kinetic method was used to determine the phase equilibrium data of supercritical carbon dioxide-ethanol-water system in the presence of entrainer. The experimental temperature was 3082 K and the pressure range was 8 ~ 15 MPa. Proposed the introduction of an entrainer effect parameter K to correlate the separation factor with or without entrainer in the supercritical state and returned an empirical equation. The results show that this empirical equation is used to predict the SC-CO2- The vapor-liquid equilibrium of the ethanol-water system is satisfactory, with the maximum average absolute error of 246%