Prediction of the Binary Interaction Parameter of Carbon Dioxide/Alkanes Mixtures in the Pseudocritical Region

Prediction of the Binary Interaction Parameter of Carbon Dioxide/Alkanes Mixtures in the Pseudocritical Region
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准临界区二氧化碳/烷烃混合物二元相互作用参数的预测

DOI:
10.1021/acsomega.9b01450
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发表时间:
2019-08
期刊:
影响因子:
4.1
通讯作者:
Dang Chaobin
Dang Chaobin
中科院分区:
化学3区
文献类型:
--
作者:
Xu Xiaoxiao;Chen Hongfen;Liu Chao;Dang Chaobin

文献摘要

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为了获得二元混合物的热物理性质,首先需要确定两组分之间的相互作用参数。本文综述了CO2与碳氢化合物及其相关混合物的二元相互作用参数的研究进展。针对CO2/烷烃(C1-C10)二元混合物在拟临界区的物性预测问题,收集了公开文献中CO2/烷烃(C1-C10)拟临界区的实验数据。此外,kij的计算是通过从文献中选择的五个典型接受的相关性来进行的。考察了温度、压力、碳数、偏心因子等因素对kij的影响。通过研究以上五个因素对kij的影响,发现温度是最重要的因素。考虑到混合物临界温度的影响,提出了一个简单的关联式来评估轻HC混合物在伪临界区的kij。
The interaction parameters between two components need to be first determined to obtain the thermophysical properties of the binary mixtures. In this paper, the research progresses of the binary interaction parameter for CO2 and hydrocarbons (HCs) and their related mixtures are illustrated. Aiming at the physical property prediction of CO2/alkanes (C1–C10) binary mixtures in pseudocritical regions, the experimental data of CO2/alkanes (C1–C10) in the pseudocritical region available in the open literature are collected. Besides, the calculation of kij is carried out by five typically accepted correlations selected from the literature. The effects of temperature, pressure, carbon number, and acentric factor on kij are investigated. By researching the influence of the above five factors on kij, it reveals that temperature is the most important one. Considering the influence of the critical temperatures of mixtures, a simple correlation is proposed to evaluate kij for light HC mixtures in the pseudocritical region.
DOI: 10.1016/0009-2509(86)87123-8
发表时间: 1986
影响因子: 4.7
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