| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 가을 (10/21 ~ 10/22, 인하대학교) |
| 권호 |
11권 2호, p.2387 |
| 발표분야 |
열역학 |
| 제목 |
Liquid-Liquid Equilibrium of Hydrocarbon-Alcohol Mixtures using Nonrandom Lattice Fluid Equation of State with Hydrogen Bonding |
| 초록 |
Nonrandom lattice equation of state with hydrogen bonding (NLF-HB EOS) was examined for the prediction of liquid-liquid equilibria (LLE) for binary alcohol and hydrocarbon mixture at low to high pressure. For hydrocarbon + alkane mixtures, inclusion of hydrogen bonding term in lattice equation of state clearly improves prediction for vapor-liquid equilibrium (VLE) as shown in previous works, but the prediction of LLE is still in question.In this paper, LLE data for alcohol (methanol and ethanol) + hydrocarbon (hexane to hexadecane) were correlated by NLF-HB EOS and results were compared with cubic equation of state (Peng-Robinson with Wong-Sandler mixing rule, PR-WS EOS). Both equations of state showed similar degree of accuracies but with different number of adjustable parameters. PR-WS EOS requires six temperature dependent coefficients for accurate calculation whereas NLF-HB EOS requires only two to three temperature coefficients. Also, effects of varying hydrogen bonding energies and surface area parameters for NLF-HB EOS were discussed. |
| 저자 |
Alexander Breitholz1, 유기풍1, 이철수2, 강정원2
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| 소속 |
1서강대, 2고려대 |
| 키워드 |
LLE; EOS; Lattice Theory; Hydrogen Bonding
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| E-Mail |
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| 원문파일 |
초록 보기 |
