Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Density Measurement of Liquid Mixture and Estimation of Excess Molar Volume by A Cubic Equation of State

액체혼합물의 밀도 측정과 3차 상태방정식에 의한 과잉 몰부피의 예측

  • Kim, Jung-Min (School of Chemical Engineering and Technology, Yeungnam University) ;
  • Bae, Hyo-Kwang (School of Chemical Engineering and Technology, Yeungnam University)
  • 김정민 (영남대학교 디스플레이화학공학부) ;
  • 배효광 (영남대학교 디스플레이화학공학부)
  • Received : 2005.06.22
  • Accepted : 2005.07.19
  • Published : 2005.10.31
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Abstract

The density of polar-nonpolar liquid mixtures composed of methyl tert-butyl ether(MTBE) and 2,2,4-trimethylpentane, and methyl ethyl ketone (MEK) and 2,2,4-trimethylpentane, and the density of polar-polar liquid mixture of MTBE and MEK were measured by densitometer at 278.15 K, 288.15 K and 298.15 K, respectively. The excess molar volume of the binary systems calculated from the measured density was shown good agreement with the calculated one by the cubic Peng-Robinson- Stryjek-Vera (PRSV) equation of state together with Huron-Vidal mixing rule and it confirmed that the cubic PRSV equation of state could be used in the molar volume calculation of polar mixture.

극성과 비극성의 물질인 methyl tert-butyl ether(MTBE)와 2,2,4-trimethylpentane 혼합물과 methyl ethyl ketone(MEK)와 2,2,4-trimethylpentane 2성분의 액체혼합물 그리고 극성의 물질인 MTBE과 MEK 2성분 액체혼합물의 밀도를 densitometer를 사용하여 278.15 K, 288.15 K, 298.15 K에서 각각 측정하였다. 측정한 밀도로부터 얻은 2성분계 과잉몰부피의 측정값과 Huron-Vidal의 혼합법칙을 사용한 Peng-Robinson-Stryjek-Vera(PRSV)의 3차 상태방정식으로부터 계산한 계산값이 잘 일치하였으며 극성물질을 포함한 혼합물의 몰부피 계산에 3차의 PRSV 상태방정식이 이용될 수 있음을 확인하였다.

Keywords

Acknowledgement

Supported by : 영남대학

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