CAJ | 학술논문

煤制乙二醇过程中产生的副产物1,4-丁二醇对获得高纯度的乙二醇有着重要影响。采用真空精馏方法分离提纯，进行设计计算时，需要乙二醇-1,4-丁二醇汽液平衡数据。为此在6.67 kPa压力下测定了乙二醇-1,4-丁二醇的汽液相平衡数据，并进行了热力学一致性检验，结果表明实验数据符合热力学一致性。分别用Wilson和NRTL模型对实验数据进行关联，发现两个模型误差都不大，均可满足工程设计的需要。
매제을이순과정중산생적부산물1,4-정이순대획득고순도적을이순유착중요영향。채용진공정류방법분리제순，진행설계계산시，수요을이순-1,4-정이순기액평형수거。위차재6.67 kPa압력하측정료을이순-1,4-정이순적기액상평형수거，병진행료열역학일치성검험，결과표명실험수거부합열역학일치성。분별용Wilson화NRTL모형대실험수거진행관련，발현량개모형오차도불대，균가만족공정설계적수요。
The byproduct, 1,4-butylene glycol from the process of producing glycol by coal, significantly influences the production of highly pure ethylene glycol. The vapor-liquid equilibrium data is necessary in design of separating and purifying ethylene glycol by mean of vacuum distillation. Therefore, the vapor-liquid equilibrium data of ethylene glycol and 1,4-butylene glycol were measured under 6.67 kPa, and thermodynamic consistency test was implemented. The results show good thermodynamic consistency. Wilson and NRTL equations were used to fit the experimental data, separately. Good agreements were obtained for both equations. Thus the parameters of the two equations obtained in this study can meet the needs of engineering design.