Correlations/estimation of equilibrium interfacial tension for methane/CO2-water/brine systems based on mutual solubility

活度系数 吉布斯自由能 汽液平衡 相平衡 分配系数 非随机双液模型 溶解 蒸汽压 摩尔分数
作者
Zehua Chen,Daoyong Yang
出处
期刊:Fluid Phase Equilibria [Elsevier BV]
卷期号:483: 197-208 被引量:10
标识
DOI:10.1016/j.fluid.2018.11.037
摘要

In this study, an effort has been made to accurately correlate equilibrium interfacial tension (IFT) between methane and water/brine with their mutual solubility in a temperature range of 278.2–477.6 K and pressure range of 0.01–107.10 MPa, respectively, while comparisons have been made between the CO2-water pair and methane-water pair and then the IFT estimation is extended to ternary systems with a newly developed mixing rule. The newly developed model is found to reproduce IFTs between methane and water with an absolute average relative deviation (AARD) of 3.5% and greatly outperform the three existing correlations. Both a higher methane solubility in aqueous phase and a higher water solubility in hydrocarbon phase can decrease the IFT. Also, the new model can help explain the slight IFT change for methane-water pair but a simultaneously great change of their mutual solubility at low pressures. Temperature is found to exert an effect on IFT mainly through regulating the water solubility in hydrocarbon phase, while the pressure imposes an impact on IFT mainly through regulating the methane solubility in aqueous phase. The newly developed model can yield a reasonable estimate for the IFTs between natural gas and water/brine. It is found that using two sets of correlations and adding a pressure term are both necessary to account for the density effects on IFT for CO2-water pair in the vapor-liquid (aqueous) region at temperatures lower and near the CO2 critical temperature (i.e., 304.3 K), whereas they are not necessary for methane-water pair, whose density is changed more smoothly rather than sharply in the supercritical region. In addition, a new mixing rule is developed to successfully extend the IFT correlations based on mutual solubility to the ternary methane-CO2-water systems with an AARD of 5.2%.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
脑洞疼应助li采纳,获得20
3秒前
zgh发布了新的文献求助10
4秒前
香蕉觅云应助linguobin采纳,获得10
4秒前
Akim应助晓巨人采纳,获得10
4秒前
5秒前
章章完成签到 ,获得积分10
5秒前
5秒前
6秒前
7秒前
标致如之完成签到,获得积分10
8秒前
9秒前
啊啊发布了新的文献求助10
9秒前
徐合川完成签到,获得积分10
10秒前
10秒前
周常通发布了新的文献求助10
11秒前
领导范儿应助浮熙采纳,获得10
12秒前
量子星尘发布了新的文献求助10
14秒前
择天莫雨完成签到,获得积分10
14秒前
在水一方应助CEJ采纳,获得10
15秒前
斯文败类应助CEJ采纳,获得10
15秒前
酷波er应助木木林采纳,获得10
15秒前
深情安青应助lixiangrui110采纳,获得10
16秒前
16秒前
May完成签到,获得积分10
16秒前
16秒前
全齐发布了新的文献求助10
18秒前
19秒前
罗备完成签到,获得积分10
19秒前
博弈春秋应助linguobin采纳,获得10
20秒前
知性的颜完成签到 ,获得积分10
20秒前
slb1319完成签到,获得积分10
22秒前
22秒前
花卷儿发布了新的文献求助10
23秒前
研友_ZzMqOn发布了新的文献求助10
23秒前
24秒前
25秒前
个性的向秋完成签到,获得积分10
26秒前
情怀应助zhaoyuli采纳,获得10
26秒前
暗号1823发布了新的文献求助20
27秒前
全齐完成签到,获得积分10
27秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3975814
求助须知:如何正确求助?哪些是违规求助? 3520123
关于积分的说明 11201020
捐赠科研通 3256502
什么是DOI,文献DOI怎么找? 1798347
邀请新用户注册赠送积分活动 877523
科研通“疑难数据库(出版商)”最低求助积分说明 806417