Determination of the subcooled liquid solubilities of PAHs in partitioning batchexperiments

GIEC OpenIR

	Determination of the subcooled liquid solubilities of PAHs in partitioning batchexperiments
	Liu Lihua 1; Wu Fei 2; Stefan Haderlein 2; Peter Grathwohl 2
	2013
发表期刊	Geoscience Frontiers
ISSN	1674-9871
卷号	4 期号:1 页码:123
摘要	Subcooled 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.
关键词	Subcooled liquid solubility PAH Enthalpy of fusion Fugacity ratio Batch experiment Geology QE1-996.5
语种	英语
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/34404
专题	中国科学院广州能源研究所
作者单位	1.中国科学院广州能源研究所 2.Eberhard-Karls-University of Tuebingen, Center for Applied Geoscience
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Liu Lihua,Wu Fei,Stefan Haderlein,et al. Determination of the subcooled liquid solubilities of PAHs in partitioning batchexperiments[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 batchexperiments.Geoscience Frontiers,4(1),123.
MLA	Liu Lihua,et al."Determination of the subcooled liquid solubilities of PAHs in partitioning batchexperiments".Geoscience Frontiers 4.1(2013):123.