이산화탄소와 a-Tetralol과의 2성분계 고압상평형 측정

변헌수; 김춘호; 황영기; 곽철

Journal of the Korean Industrial and Engineering Chemistry, Vol.7, No.1, 67-74, February, 1996

Export Citation

이산화탄소와 a-Tetralol과의 2성분계 고압상평형 측정

High Pressure Binary Phase Equilibria Measurements of α-Tetralol with Carbon Dioxide

변헌수, 김춘호, 황영기, 곽철

초록

313.2K, 343.2K 그리고 373.2K 온도와 압력 6.0MPa에서 35.0MPa 범위까지 이산화탄소와 방향족 탄화수소인 1,2,3,4-tetrahydro -1-naphthol( α-tetralol )과의 상평형 실험을 각 온도에서 압력을 변화시키면서 수행하였다. 상평형 장치는 기상과 액상을 동시에 순환시키는 순환형이 사용되었으며, 실험분석은 미량시료채취법으로 시료를 채취하여 분석하였다. 이산화탄소와 α-tetralol계의 실험은 기상과 액상에서의 상평형데이터 및 혼합물 밀도의 측정이 실험조건별로 이루어졌다. 실험결과 일정압력에서 이산화탄소의 용해도는 액상에서 온도가 증가함에 따라 감소하였고, 기상에서 α-tetralol의 용해도는 온도가 증가할수록 증가하였다. 혼합물 밀도는 압력이 증가할수록 기상, 액상 모두 혼합물 임계밀도쪽으로 접근해 감을 알 수 있었다. 또한 열역학적 해석을 위하여 3차 상태방정식인 Peng-Robinson식을 이용하여 이산화탄소-α-tetralol계의 실험치를 상호 연관시켜 이론치를 계산하여 실험치와 비교한 결과 AAD가 K(1)의 경우 1.08%∼8.98%이고 K(2)의 경우는 45.71%∼72.34% 이었다.

The binary phase equilibrium experiments of carbon dioxide/1,2,3,4 α-tetrahydro -1-naphthol( α-tetralol ) system were conducted to get phase equilibrium and mixture density data at 313.2K, 343.2K and 373.2K and within pressure ranges of 6.0 MPa to 35.0MPa. The phase equilibrium apparatus was type that circulated the vapor and liquid phase, the expended volume measuring system was adopted to microsampling technique for the analysis. The phase equilibrium and mixture density data were obtained for carbon dioxide/α-tetralol system from liquid and vapor phase. The mole fraction of carbon dioxide in liquid phase decreases and the mole fraction of α-tetralol in vapor phase increases at constant pressure according to increment of temperature, and both the densities of the vapor and liquid phase approach to the mixture critical density as the pressure increases at any temperature. For she thermodynamic analysis, the experimental data were correlated with Peng-Robinson equation in cubic equation of state and compared to theoretical values of carbon dioxide/α-tetralol system. The AAD result was in the range of 1.08% ∼8.93% in the case of K(1), and was in the range of 45.71% ∼72.34% in the case of K(2).

[References]

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Chang H, Morrell DG, J. Chem. Eng. Data, 30, 74 (1985)
Tan CS, Weng JY, Fluid Phase Equilib., 34, 37 (1987)
Mohamed RS, Holder GD, Fluid Phase Equilib., 32, 295 (1987)
Ng HJ, Robinson DB, J. Chem. Eng. Data, 23, 4 (1978)
Chou GF, Forbert RR, Prausnitz JM, J. Chem. Eng. Data, 35, 26 (1990)
Inomata H, Tuchiya K, Arai K, Saito S, J. Chem. Eng. Jpn., 19, 386 (1986)
Kim CH, Clark AB, Vimalchand P, Donohue MD, J. Chem. Eng. Data, 34, 391 (1989)
Gude MT, Teja AS, "DIPPR Project 851: Final Report 1990," (1991)
Chirico RD, Knipmeyer SE, Nguyen A, Steele WV, J. Chem. Thermodyn., 25, 1461 (1993)
Byun HS, Kim CH, Kwak C, HWAHAK KONGHAK, 30(3), 387 (1992)
Vargaftik NB, "Handbook of Physical Properties of Liquid and Gases," 2nd ed., Hemisphere Publishing Corporation, New York (1975)
Byun HS, Kim CH, Kwak C, HWAHAK KONGHAK, 31(1), 94 (1993)
Peng D, Robinson DB, Ind. Eng. Chem. Fundam., 15, 59 (1976)
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[1] 국책연구사업개발사업 기획단, 정밀화학·공정기술 국책연구사업개발사업 추진 계획, 국책연구사업개발사업 공청회 토의 자료 (1989)

[2] Lee CH, Chem. Ind. Technol., 8(5), 516 (1990)

[3] Krukonis VJ, Kurnik RT, J. Chem. Eng. Data, 30, 247 (1985)

[4] Chang H, Morrell DG, J. Chem. Eng. Data, 30, 74 (1985)

[5] Tan CS, Weng JY, Fluid Phase Equilib., 34, 37 (1987)

[6] Mohamed RS, Holder GD, Fluid Phase Equilib., 32, 295 (1987)

[7] Ng HJ, Robinson DB, J. Chem. Eng. Data, 23, 4 (1978)

[8] Chou GF, Forbert RR, Prausnitz JM, J. Chem. Eng. Data, 35, 26 (1990)

[9] Inomata H, Tuchiya K, Arai K, Saito S, J. Chem. Eng. Jpn., 19, 386 (1986)

[10] Kim CH, Clark AB, Vimalchand P, Donohue MD, J. Chem. Eng. Data, 34, 391 (1989)

[11] Gude MT, Teja AS, "DIPPR Project 851: Final Report 1990," (1991)

[12] Chirico RD, Knipmeyer SE, Nguyen A, Steele WV, J. Chem. Thermodyn., 25, 1461 (1993)

[13] Byun HS, Kim CH, Kwak C, HWAHAK KONGHAK, 30(3), 387 (1992)

[14] Vargaftik NB, "Handbook of Physical Properties of Liquid and Gases," 2nd ed., Hemisphere Publishing Corporation, New York (1975)

[15] Byun HS, Kim CH, Kwak C, HWAHAK KONGHAK, 31(1), 94 (1993)

[16] Peng D, Robinson DB, Ind. Eng. Chem. Fundam., 15, 59 (1976)

[17] Lydersen AL, "Estimation of Critical Properties of Organic Compounds," Univ. Wisconsin Coll. Eng., Eng. Exp. Stn. Rep. 3, Madison, Wis., April (1955)

[18] Reid RC, Prausnitz JM, Poling BE, "The Properties of Gases & Liquids," Fourth Edition, McGraw-Hill Book Company, New York, NY (1987)

[19] Park SD, Kim CH, Choi CS, HWAHAK KONGHAK, 29(6), 663 (1991)

[20] Kim CH, Vimalchand P, Donohue MD, Fluid Phase Equilib., 31, 299 (1986)