화학공학소재연구정보센터
HWAHAK KONGHAK, Vol.38, No.5, 609-614, October, 2000
노난 이성질체의 증기압 예측
Prediction of Vapor Pressure of Nonane Isomers
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초록
문헌을 통해 발표된 노난 이성질체의 증기압 실험치를 이용하여 환산형태의 Zia-Thodos 증기압 방정식의 상수 A, B, C, D와 지수 n을 결정함으로서 12개의 노난 이성질체의 증기압을 예측하였다. log Pr = A + B/Tr + C/Tr2 + DTr3 오차분석법에 의해 위 식에 적용되는 노난 이성질체의 각 물질에 대한 가장 정확한 지수와 4개의 상수를 얻었다. 위 식을 통해 각 물질의 증기압을 얻기 위하여 정상 끓는점, 임계압력 및 임계온도만 필요하며, 그 결과 12개의 노난 이성질체의 445개의 증기압 실험치에 대해 0.23 %의 총 평균편차를 얻었다.
Experimental vapor pressure data reported in the literature for twelve nonane isomers have been rigorously analyzed and used to determine the constants A, B, C, D, and exponent of the following vapor pressure equation in the form of reduced vapor pressure and reduced temperature, proposed by Zia and Thodos: logPr=A+B/Tr+C/Tr2+DTr3 According to varying exponent n all four constants have been obtained for nonane isomers by the error analysis. This has provided us with the best n and four constants for each material. In order to obtain the calculated vapor pressure by the above equation for each constants, only normal boiling point and the critical pressure and critical temperature are necessary to get an overall average deviation of 0.23% for 445 experimental vapor pressure points consisting of twelve nonane isomers available in the literature.
  1. Smith JM, VanNess HC, Abbott MM, "Introduction to Chemical Engineering Thermodynamics," 5th ed., McGraw-Hill, New York, NY (1996)
  2. Reid RC, Prausnitz JM, Poling BE, "The Properties of Gases and Liquids," 4th ed., McGraw-Hill, New York, NY (1987)
  3. Lee BI, Kesler MG, AIChE J., 21, 510 (1975) 
  4. Miller DG, J. Phys. Chem., 68, 1399 (1964)
  5. Thodos G, Ind. Eng. Chem., 42, 1514 (1950) 
  6. Zia T, Thodos G, Can. J. Chem. Eng., 52, 630 (1974)
  7. McGarry J, Ind. Eng. Chem. Proc. Des. Dev., 22, 313 (1983) 
  8. Reid RC, Prausnitz JM, Sherwood TK, "The Properties of Gases and Liquids," 3rd ed., McGraw-Hill, New York, NY (1977)
  9. Perry RH, Green G, "Perry's Chemical Engineers' Handbook," 7th ed., McGraw-Hill, New York, NY (1997)
  10. Thodos G, AIChE J., 1, 168 (1955) 
  11. Rossini FD, Pitizer KS, Arnett RL, Braun RM, Pimental GC, Am. Petroleum Inst. Proj. 44, Carnegie Press, Pittsburgh (1953)
  12. Sondak NE, Thodos G, AIChE J., 2, 347 (1956) 
  13. Forziati AF, Norris WR, Rossini FD, J. Res. Nat. Bur. Stand., 43, 555 (1949)
  14. Perry RE, Thodos G, Ind. Eng. Chem., 44, 1649 (1952) 
  15. Willingham CB, Taylor WJ, Pignocco JM, Rossini FD, J. Res. Nat. Bur. Stand., 35, 219 (1945)