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首页> 外文期刊>Journal of Physical and Chemical Reference Data >Recommended Liquid-Liquid Equilibrium Data. Hydrocarbons with Seawater Systems
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Recommended Liquid-Liquid Equilibrium Data. Hydrocarbons with Seawater Systems

机译:推荐的液体-液体平衡数据。海水系统中的碳氢化合物

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摘要

The solubilities of C_5-C_(26) hydrocarbons in seawater, reviewed previously, were re-evaluated using a predictive model based on the Sechenov equation. It was found that, within the scope of investigated data, the Sechenov constant is proportional to a hydrocarbon-specific parameter representing the size of the cavity in water needed to accommodate the dissolved molecule of the hydrocarbon. The proportionality coefficient has one value for n-alkanes, cycloalkanes, and alkylbenzenes, whereas for higher aromatics (including those with fused rings), a second value of the coefficient is indicated. The proposed model provides a framework for comparison of the data for various systems and helps in the recognition of systematic error. Evaluation of experimental solubility data and analysis of error propagation is given.
机译:使用基于Sechenov方程的预测模型,重新评估了C_5-C_(26)碳氢化合物在海水中的溶解度,之前对其进行了评估。已经发现,在研究数据的范围内,谢切诺夫常数与特定于碳氢化合物的参数成比例,该参数表示容纳碳氢化合物溶解分子所需的水中空腔的大小。正构烷烃,环烷烃和烷基苯的比例系数为一个值,而高级芳烃(包括具有稠环的芳烃)的比例系数为第二个值。所提出的模型为比较各种系统的数据提供了一个框架,并有助于识别系统错误。给出了实验溶解度数据的评估和误差传播的分析。

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