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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 28, 2009
Accepted August 27, 2009

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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초임계 메탄올을 이용한 팜유 바이오디젤 제조에 관한 반응인자들의 영향

Influence of Reaction Parameters on Preparation of Biodiesel from Palm Oil using Supercritical Methanol

류재훈 이시홍 신희용 배성렬^†

Jae-Hun Ryu Si-Hong Lee Hee-Yong Shin Seong-Youl Bae^†

한양대학교 화학공학과, 426-791 경기도 안산시 상록구 사3동 1271

Department of Chemical Engineering, Hanyang University, 1271 Sa-3 dong, Sangrok-gu, Ansan-si, Gyeonggi 426-791, Korea

Korean Chemical Engineering Research, October 2009, 47(5), 651-654(4), NONE Epub 5 November 2009

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Abstract

본 연구는 팜유 바이오 디젤을 제조하기 위하여 초임계 메탄올을 이용한 무촉매 전이에스터화반응을 수행하였다. 메탄올에 대한 오일의 몰 비(30:1~60:1), 압력(8~25 MPa), 온도(320~350 ℃), 교반속도(0~1,000 rpm), 시간(0~20 min)과 같은 반응 인자들이 지방산메틸에스터의 함량에 미치는 영향을 알아보기 위하여 회분식 반응기를 이용하여 실험하였다. 팜유에 대한 메탄올의 몰 비가 높아질수록 지방산메틸에스터의 함량이 높아졌지만, 45:1 이상에서는 미치는 영향이 적었으며, 각각의 몰 비에서 20 MPa 이상의 압력에서는 함량의 변화가 거의 없었다. 반응온도가 증가함에 따라 지방산메틸에스터의 함량이 증가하였지만, 350 ℃ 이상 반응시간 5 min 이후부터 감소하였고, 500 rpm 이상의 교반속도에서는 교반이 미치는 영향이 거의 없음을 확인할 수 있었다. 몰 비 45:1, 온도 335 ℃, 압력 20MPa, 시간 10분, 교반속도 500 rpm인 반응조건에서 최대 지방산메틸에스터 함량인 95%를 얻을 수 있었다.

In this study, non-catalytic transesterification using supercritical methanol was performed for preparation of biodiesel from palm oil. In order to investigate the effects of reaction parameters such as molar ratio of methanol to oil(30:1~60:1), pressure(8~25 MPa), temperature(320~350 ℃), agitation speed(0~1,000 rpm) and time(0~20 min) on the content of fatty acid methyl esters(FAMEs), we carried out the study using a batch reactor. With increasing molar ratio of methanol to oil, the content of FAMEs increased. However, the content of FAMEs was little affected by molar ratio above 45 and pressure above 20 MPa. The content of FAMEs increased when the temperature increased. However, the content of FAMEs decreased with temperature above at 350 ℃ and with time above 5 min. It was found that the agitation speed above 500 rpm scarcely affected the content of FAMEs. The highest content of FAMEs in biodiesel(95%) was obtained under the reaction conditions: temperature of 335 ℃, pressure of 20 MPa, molar ratio of 45:1(methanol to palm oil), agitation speed of 500 rpm and time of 10 min.

Keywords

Biodiesel Palm Oil Supercritical Methanol Transesterification

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