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Determination of the subcooled liquid solubilities of PAHs in partitioning batch experiments
Liu Lihua1; Wu Fei2; Stefan Haderlein2; Peter Grathwohl2
2013
Source PublicationGeoscience Frontiers
ISSN1674-9871
Volume4Issue:1Pages:123
AbstractSubcooled liquid solubility is the water solubility for a hypothetical state of liquid. It is an important parameter for multicomponent nonaqueous phase liquids (NAPLs) containing polycyclic aromatic hydrocarbons (PAHs), which can exist as liquids even though most of the solutes are solid in their pure form at ambient temperature. So far, subcooled liquid solubilities were estimated from the solid water solubility and fugacity ratio of the solid and (subcooled) liquid phase, but rarely derived from experimental data. In our study, partitioning batch experiments were performed to determine the subcooled liquid solubility of PAHs in NAPL-water system. For selected PAH, a series of batch experiments were carried out at increased mole fractions of the target component in the NAPL and at a constant NAPL/water volume ratio. The equilibrium aqueous PAH concentrations were measured with HPLC and/or GC-MS. The subcooled liquid solubility was derived by extrapolation of the experimental equilibrium aqueous concentration to a mole fraction of unity. With the derived subcooled liquid solubility, the fugacity ratio and enthalpy of fusion of the solute were also estimated. Our results show a good agreement between the experimentally determined and published data.
Language英语
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/21824
Collection中国科学院广州能源研究所
Affiliation1.中国科学院广州能源研究所
2.Eberhard-Karls-University of Tuebingen, Center for Applied Geoscience
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu Lihua,Wu Fei,Stefan Haderlein,et al. Determination of the subcooled liquid solubilities of PAHs in partitioning batch experiments[J]. Geoscience Frontiers,2013,4(1):123.
APA Liu Lihua,Wu Fei,Stefan Haderlein,&Peter Grathwohl.(2013).Determination of the subcooled liquid solubilities of PAHs in partitioning batch experiments.Geoscience Frontiers,4(1),123.
MLA Liu Lihua,et al."Determination of the subcooled liquid solubilities of PAHs in partitioning batch experiments".Geoscience Frontiers 4.1(2013):123.
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