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Received December 23, 2013
Accepted February 20, 2014
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팜지방산 디스틸레이트의 무촉매 에스테르화 반응특성 연구
An Analysis of Characteristics for the Non-catalytic Esterification of Palm Fatty Acid Distillate (PFAD)
대림산업, 서울시 종로구 중학동 14 1한양대학교 화학공학과, 서울시 성동구 행당동 17
Daelim industrial Co., Ltd., 14 Joonghak-dong, Jongno-gu, Seoul 110-150, Korea 1Department of Chemical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
Korean Chemical Engineering Research, June 2014, 52(3), 395-401(7), 10.9713/kcer.2014.52.3.395 Epub 2 June 2014
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Abstract
본 연구에서는 고온(230~290 oC)의 무촉매 조건에서 이루어지는 팜 지방산 디스틸레이트(PFAD)의 에스테르화 반응에 대해 수학적 모델링을 통해 그 반응 특성을 분석하였다. ‘무촉매 에스테르화 반응’에 대해 균일계(homogeneous) 2차 가역 반응으로 가정하였고 액상 내에서 동시적, 경쟁적으로 발생하고 있는 물과 메탄올의 증발과 반응을 모두 고려하기 위해 ‘반응 유효 인자’(reaction effectiveness factor, η)를 도입하였다. 각 반응물 및 생성물의 농도에 대하여 실험을 통해 측정한 값과 반응모델에 의한 예측값 사이의 차이를 최소화하는 반응속도 상수와 물질전달 계수를 구하기 위해 비선형 계획법(nonlinear programming)을 수행하였다. 이를 통해 얻은 반응의 활성화 에너지는 43.98 kJ/mol이다.
In this work, the reaction characteristics for the non-catalytic esterification of palm fatty acid distillate were analyzed. The esterification reaction was assumed as the pseudo homogeneous 2nd order reversible reaction and ‘reaction effectiveness factor (η)’ was used to take accounts into evaporation and reaction of water and methanol, which take place simultaneously in the liquid phase. The nonlinear programming was used to derive appropriate kinetic parameters,_x000D_
the reaction rate constant and mass transfer coefficient, minimizing the error between experimental data and the numerical values. Based on these parameters, the apparent activation energy was calculated to be 43.98 kJ/mol.
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Van Gerpen J, Fuel Process. Technol., 86(10), 1097 (2005)
Satriana, Supardan MD, Asian J. Chem. Eng., 8, 1 (2008)
Cho HJ, Kim SH, Hong SW, Yeo YK, Fuel, 93(1), 373 (2012)
Kiss AA, Omota F, Dimian AC, Rothenberg G, Top. Catal., 40, 141 (2006)
Jitputti J, Kitiyanan B, Rangsunvigit P, Bunyakiat K, Attanatho L, Jenvanitpanjakul P, Chem. Eng. J., 116(1), 61 (2006)
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Marchetti JM, Miguel VU, Errazu AF, Fuel, 86(5-6), 906 (2007)
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Choi HK, Kim SD, Yoo JH, Chun DH, Lim JH, Rhim YJ, Lee SH, Korean Chem. Eng. Res., 50(3), 449 (2012)
