Isobaric Vapor–Liquid Equilibrium for Two Binary Systems of n-Heptane + sec-Butyl Acetate and Methylcyclohexane + sec-Butyl Acetate under Atmosphere
Isobaric Vapor–Liquid Equilibrium for Two Binary Systems of n-Heptane + sec-Butyl Acetate and Methylcyclohexane + sec-Butyl Acetate under Atmosphere
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DOI：
10.1021/acs.jced.7b00999
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发表时间：
2018-04
影响因子：
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通讯作者：
Lixin Liu;Dianliang Fu;Yinhai Sun;Shoutao Ma;Lanyi Sun
中科院分区：
文献类型：
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作者：
Lixin Liu;Dianliang Fu;Yinhai Sun;Shoutao Ma;Lanyi Sun
用Ellis汽液平衡釜测定了常压下正庚烷+乙酸仲丁酯（SBAC）和甲基环己烷+ SBAC两个体系的等压汽液平衡数据。采用Herington方法和Wisniak检验确定了两个体系的热力学一致性。用非随机双液模型、泛拟化学模型和Wilson模型对正庚烷+ SBAC和甲基环己烷+ SBAC的实验结果进行了关联，关联结果与实验数据吻合较好。结果表明，该模型能较好地预测各组分间的相互作用。汽液平衡数据为正庚烷+ SBAC和甲基环己烷+ SBAC的进一步分离研究提供了理论依据和数据支持。
Data for two systems of isobaric vapor–liquid equilibrium (VLE), n-heptane + sec-butyl acetate (SBAC) and methylcyclohexane + SBAC, were determined under atmosphere with an Ellis vapor–liquid equilibrium still. The Herington method and Wisniak test were employed to determine the thermodynamic consistency of the two systems. The experimental results of n-heptane + SBAC and methylcyclohexane + SBAC were correlated by three activity coefficient models, which are the nonrandom two-liquid, universal quasichemical, and Wilson, and the correlation results fit well with experimental data. The binary interaction parameters of these models were obtained, and the results showed that these models can give good predictions. The VLE data provide theoretical basis and data support for the further study on separation of n-heptane + SBAC and methylcyclohexane + SBAC.