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Received June 15, 2006
Accepted July 12, 2006
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구리 촉매 상에서 C9-알데히드의 수소화 반응에 의한 C9-알코올 합성
Synthesis of C9-Alcohol through C9-Aldehyde Hydrogenation over Copper Catalysts
서울시립대학교 환경공학부, 130-743 서울시 동대문구 전농동 90 1동양대학교 생명화학공학과, 750-711 경북 영주시 풍기읍 교촌동 1 2동양대학교 기계자동차디자인학부, 750-711 경북 영주시 풍기읍 교촌동 1 3공주대학교 화학공학부, 314-701 충남 공주시 신관동 182
Faculty of Environmental Engineering, University of Seoul, 90, Cheonnong-dong, Dongdaemun-gu, Seoul 130-743, Korea 1Department of Chemical Engineering, Dongyang University, 1, Kyochon-dong, Poongki-eup, Youngjou 750-711, Korea 2School of Machine and Vehicle Design, Dongyang University, 1, Kyochon-dong, Poongki-eup, Youngjou 750-711, Korea 3Department of Chemical Engineering, Kongju National University, 182, Shinkwan-dong, Gongju 314-701, Korea
jkjeon@kongju.ac.kr
Korean Chemical Engineering Research, August 2006, 44(4), 363-368(6), NONE Epub 6 September 2006
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Abstract
C9-알데히드를 수소화하여 C9-알콜을 제조하는 공정에 사용하기 위한 최적의 촉매를 선정하고, C9-알콜의 수율을 극대화하기 위한 운전 조건을 확립하기 위한 실험을 수행하였다. 구리 전구체로 acetate를 사용하고 침전제로 Na2CO3를 사용하여 제조한 CuO/ZnO/Al2O3(60:30:10 wt％) 촉매의 표면적 및 구리 비표면적이 가장 우수하였으며 C9-알데히드 수소화 반응에서도 가장 우수한 성능을 보였다. 최적화된 촉매를 장착한 trickle bed 반응기를 사용하여 175 °C, 800 psi, WHSV=3 hr.1의 조건에서 94.1 wt％의 C9-알콜 수율을 얻었다. 알데히드의 수소화 반응에 사용되는 다른 촉매들과 비교한 결과 Ni/kieselghur 촉매와 유사한 성능을 보였으며 Cu-Ni-Cr-Na/Al2O3 촉매 및 Ni-Mo/Al2O3 촉매의 경우보다 우수한 성능을 보이는 것을 확인하였다. 장기 촉매 테스트를 통해서 촉매의 안정성을 확인한 결과 약 72시간 이후에는 고비점 부산물의 생성량 증가로 인하여 C9-알콜의 수율이 약간씩 감소하였다.
This study selected the optimal catalyst for the process of producing C9-alcohol by hydrogenating C9-aldehyde, and carried out an experiment in order to establish the operating condition for maximizing the yield of C9-alcohol. The BET surface area and the specific area of copper were most excellent in CuO/ZnO/Al2O3 (60:30:10 wt％) catalyst produced using acetate as a precursor of copper and Na2CO3 as a precipitant, and the catalyst also showed the highest performance in C9-aldehyde hydrogenation. Using a trickle bed reactor loaded with optimized catalyst, we attained 94.1 wt％ yield of C9-alcohol under the condition of 175 °C, 800 psi and WHSV=3 hr.1. According to the result of comparing with other catalysts used in the hydrogenation of aldehyde, the catalyst showed similar performance to that of Ni/kieselghur and higher than that of Cu-Ni-Cr-Na/Al2O3 and Ni-Mo/Al2O3. According to the result of examining the stability of the catalyst through a long-term catalysis test, the yield of C9-alcohol decreased slowly after around 72 hours due to the increasing production of high boiling-point byproducts.
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Jeon JK, Park YK, J. Korean Ind. Eng. Chem., 14(5), 666 (2003)
Jeon JK, Park YK, Kim JM, Chem. Lett., 33(2), 174 (2004)
Tang Z, Zhou YC, Feng YY, Appl. Catal. A: Gen., 273(1-2), 171 (2004)
Wang XQ, Saleh RY, Ozkan US, J. Catal., 231(1), 20 (2005)
Schroder U, Andersson B, J. Catal., 132(2), 402 (1991)
Tronconi E, Lietti L, Groppi G, Forzatti P, Pasquon I, J. Catal., 135(1), 99 (1991)
Sanchez-Delgado RG, Andriollo A, De Ochoa OL, Suarez T, Valencia N, J. Org. Chem., 209(1), 77 (1981)
Vargas JM, Riley Kenneth L, “Hydrogenation Catalyst with low Phosphorous Content for oxo Alcohol Process,” U.S. Patent No. 5,382,71 (1995)
Vargas JM, Riley Agosto M, Kenneth L, “Hydrogenation Catalyst for Oxo Alcohol Process,” U.S. Patent No. 5,399,793 (1995)
Deckers G, Horn G, “Hydrogenation of Aldehydes, Ketones, Carboxylic Acids and Esters,” U.S. Patent No. 5,569,792 (1996)
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Thurman LR, Harris JB, “Process for the Production of 2-ethylhexanol,” U.S. Patent No. 5,227,544 (1993)
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