A Molecular Dynamics Simulation Probe of the Solubility Parameters of Supercritical Water and Methanol

被引:0
作者
Hassan Alasiri
机构
[1] King Fahd University of Petroleum and Minerals,Chemical Engineering Department
[2] King Fahd University of Petroleum and Minerals,Center for Refining and Petrochemicals
来源
Arabian Journal for Science and Engineering | 2019年 / 44卷
关键词
Supercritical fluid; Solubility parameter; Molecular dynamics simulation; Methanol; Water;
D O I
暂无
中图分类号
学科分类号
摘要
Solubility parameters of supercritical water and methanol were probed by using molecular dynamics simulation. The computed solubility parameters agree well with the theoretical values for different temperatures and pressures within the supercritical region. The results show that the solubility parameter decreases with increasing temperature and increases with increasing the pressure. The polarity of the system increases at higher temperatures; therefore, the degree of molecular aggregation increases. Raising the pressure of the system reduces the degree of aggregation between molecules and increases the solubility parameter of the system.
引用
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页码:9911 / 9917
页数:6
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共 68 条
[1]  
Knez Ž(2014)Industrial applications of supercritical fluids: a review Energy 77 235-243
[2]  
Markočič E(2016)Supercritical fluids and polymers—the year in review—2014 J. Supercrit. Fluids 110 126-153
[3]  
Leitgeb M(2017)Solvent supercritical fluid technologies to extract bioactive compounds from natural sources: a review Molecules 63 860-884
[4]  
Primožič M(2018)Solubility of solids in sub- and supercritical fluids: a review 2010–2017 J. Chem. Eng. Data 47 391-399
[5]  
Knez Hrnčič M(2009)Hydrothermal biomass gasification J. Supercrit. Fluids 47 382-390
[6]  
Škerget M(2009)Near and supercritical water. Part II: oxidative processes J. Supercrit. Fluids 32 8700-8704
[7]  
Kiran E(2018)A density functional theory probe of the hydrolysis of heavy hydrocarbon structural moieties in supercritical water Energy Fuels 190 281-288
[8]  
Khaw KY(2015)Whole biodiesel conversion process combining isolation, cultivation and in situ supercritical methanol transesterification of native microalgae Bioresour. Technol. 140 252-261
[9]  
Parat MO(2015)Study of an energy-integrated biodiesel production process using supercritical methanol and a low-cost feedstock Fuel Process. Technol. 97 314-325
[10]  
Shaw PN(2015)Research on transesterification parameters for producing plant sterols with supercritical methanol Toxicol. Environ. Chem. 17 5172-5181