Modelling of phase equilibria in CH4-C2H6-C3H8-nC(4)H(10)-NaCl-H2O systems

doi:10.1016/j.apgeochem.2015.02.006

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	Modelling of phase equilibria in CH4-C2H6-C3H8-nC(4)H(10)-NaCl-H2O systems
	Li, Jun 1; Zhang, Zhigang 2; Luo, Xiaorong 3; Li, Xiaochun 1
刊名	APPLIED GEOCHEMISTRY
	2015-05-01
卷号	56 页码:23-36
DOI	10.1016/j.apgeochem.2015.02.006
文献子类	Article
英文摘要	A thermodynamic model is presented for the mutual solubility of CH4-C2H6-C3H8-nC(4)H(10)-brine systems up to high temperature, pressure and salinity. The Peng-Robinson model is used for non-aqueous phase fugacity calculations, and the Pitzer model is used for aqueous phase activity calculations. The model can accurately reproduce the experimental solubilities of CH4, C2H6, C3H8 and nC(4)H(10) in water or NaCl solutions and H2O solubility in the non-aqueous phase. The experimental data of mutual solubility for the CH4-brine subsystem are sufficient for temperatures exceeding 250 degrees C, pressures exceeding 1000 bar and NaCl molalities greater than 6 molal. Compared to the CH4-brine system, the mutual solubility data of C2H6-brine, C3H8-brine and nC(4)H(10)-brine are not sufficient. Based on the comparison with the experimental data of H2O solubility in C2H6-, C3H8-or nC(4)H(10)-rich phases, the model has an excellent capability for the prediction of H2O solubility in hydrocarbon-rich phases, as these experimental data were not used in the modelling.
WOS关键词	EQUATION-OF-STATE ; VAPOR-LIQUID-EQUILIBRIA ; ASSOCIATING FLUID THEORY ; AQUEOUS NACL SOLUTIONS ; CALCULATING CO2 SOLUBILITY ; METHANE PLUS WATER ; DEW-POINT GAS ; PURE WATER ; SALT-SOLUTIONS ; HIGH-PRESSURE
WOS研究方向	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000351777800003
资助机构	Chinese National Major Fundamental Research Developing Project(2011CB201105) ; Chinese National Major Fundamental Research Developing Project(2011CB201105) ; National Science and Technology Major Project(2011ZX05008-004) ; National Science and Technology Major Project(2011ZX05008-004) ; National Natural Science Foundation of China(90914010 ; National Natural Science Foundation of China(90914010 ; 41020134003) ; 41020134003) ; Chinese National Major Fundamental Research Developing Project(2011CB201105) ; Chinese National Major Fundamental Research Developing Project(2011CB201105) ; National Science and Technology Major Project(2011ZX05008-004) ; National Science and Technology Major Project(2011ZX05008-004) ; National Natural Science Foundation of China(90914010 ; National Natural Science Foundation of China(90914010 ; 41020134003) ; 41020134003)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62574]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Li, Jun,Zhang, Zhigang,Luo, Xiaorong,et al. Modelling of phase equilibria in CH4-C2H6-C3H8-nC(4)H(10)-NaCl-H2O systems[J]. APPLIED GEOCHEMISTRY,2015,56:23-36.
APA	Li, Jun,Zhang, Zhigang,Luo, Xiaorong,&Li, Xiaochun.(2015).Modelling of phase equilibria in CH4-C2H6-C3H8-nC(4)H(10)-NaCl-H2O systems.APPLIED GEOCHEMISTRY,56,23-36.
MLA	Li, Jun,et al."Modelling of phase equilibria in CH4-C2H6-C3H8-nC(4)H(10)-NaCl-H2O systems".APPLIED GEOCHEMISTRY 56(2015):23-36.