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《Journal of Chemical Engineering of Chinese Universities》 2003-06
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Determination and Study on the Solubility of Methane in Gasoline at High Pressures

GUO Yu-gao, MA Pei-sheng, XIA Shu-qian, HUA Chao (State Key Lab of C1 Chemistry and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China)  
A dynamic apparatus was established for determining gas solubility in pure and mixed solvents under high-pressure. The experimental results for the binary systems of CH4-C6H14 and CH4- CH3OH show that the apparatus is credible for measuring the solubility of gas in liquid at moderate temperature and high pressure. In the paper, experiments were conducted for determining the solubility data of natural gas in the mixed solvent of gasoline-methanol and gasoline-ethanol at different temperatures(15~30℃) and different pressures(2.0~12.0MPa) firstly. It was found that the solubility of methane increases obviously with increasing in pressures and decreases with temperature increasing. At the same time the fugacity coefficients of methane under experimental conditions were calculated with the PR equation of state. It was proved that the solubility data agree well with the equation iiHxf= and Henry coefficients of methane decrease gradually with temperatures increasing.
【Fund】: 中国石化股份有限公司基金(X502009)。
【CateGory Index】: O645.12
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