Measurement of Vapor-Liquid Equilibria at Elevated pressures for Binary Mixtures of CO2 with esters
碩士 === 國立臺灣大學 === 化學工程學研究所 === 89 === A semi-flow type apparatus was used to measured the vapor-liquid equilibrium (VLE) data of CO2 + ethyl caproate, ethyl caprylate, ethyl caprate, diethyl methylmalonate, and diethyl ethylmalonate five binary mixtures at temperatures 308.15 K, 318.15 K...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2001
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| Online Access: | http://ndltd.ncl.edu.tw/handle/54459051587902132601 |
| Summary: | 碩士 === 國立臺灣大學 === 化學工程學研究所 === 89 === A semi-flow type apparatus was used to measured the vapor-liquid equilibrium (VLE) data of CO2 + ethyl caproate, ethyl caprylate, ethyl caprate, diethyl methylmalonate, and diethyl ethylmalonate five binary mixtures at temperatures 308.15 K, 318.15 K and 328.15 K over the pressure range from 1 MPa to 10 MPa. Total 145 new data were obtained for these five binary mixtures. The solubility of carbon dioxide in the liquid phase, increases with increasing pressure and decreases with increasing temperature.
The Krichevsdy-Ilinskaya（KI）equation was used to correlate the solubility of CO2 in esters and the Henry’s constants were obtained. The Henry’s constants increase with the increasing temperature.
Equation of state method was used to correlate the new vapor-liquid equilibrium data. It shows that the SRK equation of state with the two-parameter van der Waals one-fluid mixing rule yields the best results.
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