Fluid Phase Behavior of Nitrogen + Acetone and Oxygen + Acetone by Molecular Simulation, Experiment and the Peng–Robinson Equation of State

Fluid Phase Behavior of Nitrogen + Acetone and Oxygen + Acetone by Molecular Simulation, Experiment and the Peng–Robinson Equation of State
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通过分子模拟、实验和彭罗宾逊状态方程研究氮丙酮和氧丙酮的液相行为

DOI:
10.1021/je400691f
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发表时间:
2014
影响因子:
--
通讯作者:
J. Vrabec
J. Vrabec
中科院分区:
工程技术3区
文献类型:
--
作者:
T. Windmann;M. Linnemann;J. Vrabec

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采用分子模拟和实验相结合的方法研究了氮气+丙酮和氧气+丙酮二元混合物的汽液平衡。建立了纯丙酮(CH 3-(C = O)-CH 3)的力场模型,并进行了验证,然后与文献中的四种分子模型进行了比较。调节氮气和丙酮以及氧气和丙酮之间的不同分散相互作用。在此基础上,对氮气+丙酮和氧气+丙酮的汽液平衡进行了分子模拟计算,并通过实验数据进行了验证。为了扩展实验数据库,构建了气体溶解度装置,并在三个等温线400 K,450 K和480 K至41 MPa的最大压力下测量了氮气+丙酮的饱和液相线。最后,利用模拟和实验结果,采用Huron-Vidal混合规则对N2+丙酮的Peng-Robinson状态方程进行了参数化.
Vapor–liquid equilibria (VLE) of the binary mixtures nitrogen + acetone and oxygen + acetone are studied by molecular simulation and experiment. A force field model for pure acetone (CH3–(CO)–CH3) is developed, validated, and then compared with four molecular models from the literature. The unlike dispersive interaction between nitrogen and acetone as well as oxygen and acetone is adjusted. On the basis of these mixture models, the VLE of nitrogen + acetone and oxygen + acetone is determined by molecular simulation and validated on the basis of experimental data. To extend the experimental database, a gas solubility apparatus is constructed and the saturated liquid line of nitrogen + acetone is measured at the three isotherms 400 K, 450 K, and 480 K up to a maximum pressure of 41 MPa. Finally, the results from simulation and experiment are used to parametrize the Peng–Robinson EOS for nitrogen + acetone with the Huron−Vidal mixing rule.
DOI: 10.1515/zna-1970-0535
发表时间: 1970
期刊: Zeitschrift für Naturforschung A
影响因子: --
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