Determination of P-V-T-x properties of the CO2-H2O system up to 573.15 K and 120 MPa-Experiments and model
Hu, Qingcheng1; Guo, Huirong2; Lu, Xinbiao1,3; Lu, Wanjun1; Chen, Ying2,4; Zhu, Yan2; Geng, Lantao1
2016-04-10
发表期刊CHEMICAL GEOLOGY
卷号424页码:60-72
摘要A new method is being developed as part of this study to measure the Pressure-Volume-Temperature-composition (P-V-T-x) properties of the CO2-H2O system at temperatures from 273.15 to 513.15 K and pressures from 30 to 120 MPa. The density of a CO2-H2O solution is determined by measuring the volumetric change of the solution sealed in a capillary High-Pressure Optical Cell (HPOC), through a systematic correction. This study partially fills the current density/molar volume data gap for dilute CO2-H2O systems. Data show that the density of CO2-H2O mixture (rho(CO2-H2O)) changes little below 298.15 K, then decreases more rapidly than rho(H2O) with increasing temperature at constant pressure, and eventually becomes lower than rho(H2O) in high temperature range (for example, above 489 K at 30 MPa). This pivoting temperature (T-p, above which rho(CO2-H2O) becomes lower than rho(H2O)) monotonously increases with increasing pressure (to 575 K as the pressure reaches 120 MPa). The calculated apparent molar volume of CO2 in water (V-Phi,V-CO2) is independent of CO2 concentration, but is negatively correlated to pressure when the temperature is above 298.15 K. A revised V-Phi,V-CO2 model for dilute CO2-H2O systems is proposed based on this study. This revised model can reproduce both the current and previous density data with an acceptable error range at temperatures up to 573.15 K and pressures up to 120 MPa. It can be used reliably to simulate geological sequestration of CO2 into water aquifers, and in the study of P-V-T-x evolution of geo-fluids (e.g., CO(2-)bearing aqueous ore forming fluids). (C) 2016 Elsevier B.V. All rights reserved.
文章类型Article
关键词P-v-t-x Co2-h2o System Measurements Model
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.chemgeo.2016.01.011
URL查看原文
收录类别SCI
语种英语
关键词[WOS]SYNTHETIC FLUID INCLUSIONS ; CARBON-DIOXIDE SEQUESTRATION ; EQUATION-OF-STATE ; PVTX PROPERTIES ; THERMODYNAMIC PROPERTIES ; INFINITE DILUTION ; SALINE FORMATIONS ; AQUEOUS-SOLUTIONS ; CO2 SOLUBILITY ; HIGH-TEMPERATURES
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000370021200005
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.idsse.ac.cn/handle/183446/1508
专题深海科学研究部_深海极端环境模拟研究实验室
作者单位1.China Univ Geosci, Fac Earth Resources, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
2.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China
3.China Univ Geosci, Geol Survey Inst, Wuhan 430074, Peoples R China
4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
推荐引用方式
GB/T 7714
Hu, Qingcheng,Guo, Huirong,Lu, Xinbiao,et al. Determination of P-V-T-x properties of the CO2-H2O system up to 573.15 K and 120 MPa-Experiments and model[J]. CHEMICAL GEOLOGY,2016,424:60-72.
APA Hu, Qingcheng.,Guo, Huirong.,Lu, Xinbiao.,Lu, Wanjun.,Chen, Ying.,...&Geng, Lantao.(2016).Determination of P-V-T-x properties of the CO2-H2O system up to 573.15 K and 120 MPa-Experiments and model.CHEMICAL GEOLOGY,424,60-72.
MLA Hu, Qingcheng,et al."Determination of P-V-T-x properties of the CO2-H2O system up to 573.15 K and 120 MPa-Experiments and model".CHEMICAL GEOLOGY 424(2016):60-72.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Determination of P–V(1979KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Hu, Qingcheng]的文章
[Guo, Huirong]的文章
[Lu, Xinbiao]的文章
百度学术
百度学术中相似的文章
[Hu, Qingcheng]的文章
[Guo, Huirong]的文章
[Lu, Xinbiao]的文章
必应学术
必应学术中相似的文章
[Hu, Qingcheng]的文章
[Guo, Huirong]的文章
[Lu, Xinbiao]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。