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298.15K 에서의 Cyclohexane - alcohol 계의 과잉 몰 부피
박소진,오종혁 ( So Jin Park,Jong Hyeog Oh ) 한국화학공학회 1994 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.32 No.5
Solution behavior of liquid mixtures are depend on the interactions of constituent molecules in solution, excess molar volume(V^E) is therefore very important in the thermodynamic design as well as understanding the relation between constituent components. In this work, excess molar volumes have been measured for binary mixtures of cyclohexane-alcohol(C₁-C₄) at 298.15 K by using digital vibrating tube densimeter. Excess molar volume values show positive deviation from the ideality in all the measured cyclohexane-alcohol systems and especially cyclohexane-methanol mixture has immiscible region. Experimental data were fitted with 6 parameter Redlich-Kister equation, and their standard deviations(S_d), from the experimental data were less than 0.009 ㎤/㏖.
박소진,강용,이태종,최명재,이규완,Park, So-Jin,Kang, Yong,Lee, Tae-Jong,Choi, Myoung-Jai,Lee, Kyu-Wan 한국에너지학회 1993 에너지공학 Vol.2 No.2
n-dodecane-1-decanol, n-dodecane-1-dodecanol 및 1-decanol-1-dodecanol계 의 14$0^{\circ}C$ 등온 기액평형 데이타를 static method로써 Head Space Gas Chromatography (H.S.G.C)를 이용하여 측정하였다. 액상의 비이상성을 고려하여 계산된 활동도계수는 Margules, Van Laar, Wilson, NRTL g$^{E}$ 모델을 이용하여 상관관계를 구하였으며, Redlich-Kister의 열역학적 일치성 시험을 통해 데이타의 신빙성을 확인하였다. 측정한 이성분계중 n-dodecane-1-decanol계는 최소 공비점을 가짐을 알 수 있었다. Isothermal vapor-liquid equilibrium data have been measured for binary systems n-dodecane-1-defanol, n-doderane-1-dodecanol, and 1-decanoi-1-dodecanol at 140$^{\circ}C$ by using head space gas chromatography (H.S.G.C) as a static method. The activity coefficients, calculated taking into acount the nonideality of the liquid phase, were correlated with the conventional g$\^$E/ model, Margules, van Laar, Wilson, NRTL equations. These equilibrium data were thermodynamically consistent by Rrdlich- kister test, among these data, system n-dodecane-1-detanoi has minimum azeotrope.
CO<sub>2</sub> 제거용 흡착제 Sodium Glycinate의 물성측정과 추산
박소진,장경룡,박인환,Park, So-Jin,Jang, Gyeong-Ryong,Park, In Hwan 한국화학공학회 2006 Korean Chemical Engineering Research(HWAHAK KONGHA Vol. No.
화력발전소에서 배출되는 배연가스에서의 $CO_2$가스 흡수를 목적으로 sodium glycinate계 흡수제를 개발하기 위하여 sodium glycinate의 순수 및 수용액의 물성인 용해도, 증기압과 비점, 열전도 및 증발 잠열을 측정 또는 추산하였다. 용매인 $H_2O$ 25 g에 대한 sodium glycinate의 온도별 용해도는 y = 0.3471x + 20.993의 1차 함수 관계로 증가하였다. Sodium glycinate 10 wt%, 20 wt%, 30 wt%, 40 wt%, 50 wt%, 60 wt% 수용액의 증기압과 비점을 측정하고, Antoine 상수를 구하였으며 Clausius- Clapeyron 식을 이용하여 증기압 측정값으로 증발 잠열을 구하였다. Sodium glycinate 분체의 열전도도 측정은 분체를 disk판으로 성형한 후, 고체 열전도도 측정 장치로 측정하였으며 그 값은 $1.0933kcal/m{\cdot}hr{\cdot}^{\circ}C$이었다. Aqueous solution of sodium glycinate was checked as a suitable $CO_2$ absorbent from the flu gas in the thermal power plant. For this purpose, solubility, vapor pressure, latent heat of vaporization and thermal conductivity were determined for pure and aqueous solution of sodium glycinate. The solubility of sodium glycinate in the solvent, 25 g of $H_2O$, was increased with increasing the temperature and their relation was represented as a first order equation of y = 0.3471x + 20.993. The vapor pressure for 10 wt% to 60 wt% of aqueous sodium glycinate solution were determined and the latent heat of vaporization of each aqueous solution was calculated from measured vapor pressure using Clausius-Clapeyron equation. Besides, thermal conductivity of sodium glycinate powder was also determined and it was $1.0933kcal/m{\cdot}hr{\cdot}^{\circ}C$.
Oxazole - Acetonitrile - Water 삼성분계의 정압 기액평형
박소진,A . P . Schmidt ( So Jin Park ) 한국화학공학회 1991 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.29 No.2
New vapor-liquid equilibrium data for the ternary mixture oxazole-acetonitrile-water, which are by-products of acrylonitrile manufacturing process in Hoechst Co., were determined by using recirculating still at 1013 mbar. These experimental data were satisfactorily correlated by Wilson and NRTL equation for the activity coefficient and were found to be thermodynamically consistent by two point consistency test for a multicomponent.