Phase Behavior for the Carbon Dioxide + 2-Butanol System: Experimental Measurements and Modeling with Cubic Equations of State
作者： Catinca Secuianu , Viorel Feroiu , Dan Geană
DOI: 10.1021/JE800799N
关键词:
摘要: Vapor-liquid equilibria (VLE) data for the carbon dioxide + 2-butanol system at (298.15, 303.15, 308.15, 313.15, and 318.15) K up to 81.5 bar are reported. The experimental method used in this work was a static-analytical with liquid vapor phase sampling. new results discussed compared available literature data. Measured VLE were modeled general cubic equation of state (GEOS), Peng-Robinson (PR) (EoS), Soave-Redlich-Kwong (SRK) EoS using classical van der Waals (two-parameter conventional mixing rule, 2PCMR) rules. A single set interaction parameters each state, representing exactly critical pressure maximum (CPM) temperature upper end point (UCEP), calculate behavior binary mixture wide range temperatures [(278.21 512.3) K]. GEOS is more reliable predicting curve bubble-point lines, it less exact gas composition higher temperatures.
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