CAJ | 학술논문

SRK方程结合范德华混合规则应用于极性体系会产生较大误差,而结合超额Gibbs自由能(G~E)型混合规则能得较好的结果. Wong-Sandler(WS型)混合规则是基于无穷大压力的G~E型混合规则,文中对提出一种基于常压的改进型WS(MWS型)混合规则,利用SRK方程分别结合WS型和MWS型混合规则对多个二元极性体系汽液平衡进行预测.比较结果表明,采用SRK方程结合MWS型混合规则预测汽液平衡结果一般优于WS型混合规则.
SRK방정결합범덕화혼합규칙응용우겁성체계회산생교대오차,이결합초액Gibbs자유능(G~E)형혼합규칙능득교호적결과. Wong-Sandler(WS형)혼합규칙시기우무궁대압력적G~E형혼합규칙,문중대제출일충기우상압적개진형WS(MWS형)혼합규칙,이용SRK방정분별결합WS형화MWS형혼합규칙대다개이원겁성체계기액평형진행예측.비교결과표명,채용SRK방정결합MWS형혼합규칙예측기액평형결과일반우우WS형혼합규칙.
The predicting results of polar systems have a greater error when applying SRK equation combined with van der Waals mixing rules, but those are better when applying SRK equation combined with extra Gibbs (G~E) mixing rules. Wong-Sandler (WS) is one of G~E mixing rules based on the infinite pressure. One of modified WS (MWS) mixing rules based on atmospheric pressure was proposed. SRK equation was applied for the prediction of vapor-liquid equilibria of various polar binary systems combined with WS and MWS mixing rules respectively. The comparison results show that the prediction with MWS model is better than that with WS model.