Tag 개방식 장치를 이용한 이성분계 혼합물의 최소인화점 현상의 측정 및 예측

국문 초록 (Abstract)

본 연구에서는 ethylbenzene + n-butanol 및 ethylbenzene + n-hexanol 계의 인화점을 Tag 개방식 장치(ASTM D1310-86)를 이용하여 측정하였다. 이성분계 혼합물은 “최소인화점 현상”(minimun flash point behavior)을 보였다. 실험값은 Raoult의 법칙, UNIQUAC 모델식과 NRTL 모델식에 의해 계산된 값들과 비교 하였다. 그 결과, UNIQUAC 모델식과 NRTL 모델식에 의한 예측값이 Rauolt의 법칙에 의한 예측값 보다 실험값에 더욱 근접하였다. 이는 ethylbenzene + n-butanol 및 ethylbenzene + n-hexanol 계와 같은 비이상 용액의 활동도 계수값을, UNIQUAC 및 NRTL 모델식이 Raoult의 법칙보다 정확하게 계산하기 때문이다. 또한, NRTL 모델식의 실험값에 대한 모사성이 UNIQUAC 모델식의 그것 보다 우수하였다.

다국어 초록 (Multilingual Abstract)

The flash points for the systems, ethlybenzene + n-butanol and ethlybenzene + n-hexanol, were measured by using Tag open-cup tester (ASTM D1310-86). These binary mixtures exhibited MFPB (minimum flash point behavior), which leads to the minimum on the flash point vs composition curve. The experimental data were compared with the values calculated by the Raoults law, the UNIQUAC equation and the NRTL equation. The calculated values based on the UNIQUAC and NRTL equations were found to be better than those based on the Raoults law. It was concluded that the UNIQUAC and NRTL equations were more effective than the Raoult’ law at describing the activity coefficients for nonideal solution such as the ethlybenzene+n-butanol and ethlybenzene + n-hexanol systems. And the predictive curve of the flash point prediction model based on the NRTL equation described the experimentally-derived data more effectively than was the case when the prediction model was based upon the UNIQUAC equation.

목차 (Table of Contents)

• 요약
• Abstract
• I. 서론
• II. 실험
• III. 이성분계 가연성 혼합물의 인화점 계산
• IV. 결과 및 고찰
• V. 결론
• 참고문헌

참고문헌 (Reference)

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