| Issue |
Korean Chemical Engineering Research,
Vol.46, No.2, 279-285, 2008
Vol.46, No.2, 279-285, 2008
메조 세공의 고체산 촉매를 이용한 2-나프톨의 에테르화 반응
The Etherification of 2-Naphthol over Mesoporous Solid Acid Catalysts
여러 가지 고체산 촉매를 이용하여 2-naphthol과 에탄올의 에테르화 반응을 연구하였다. 본 연구에서 촉매는 CNS, CNSWS, SCMS, MCF, SBA-15와 이 촉매에 sulfonic acid를 붙인 CNS-SO3H, CNSWS-SO3H, SCMS-SO3H, MCFSO3H, SBA-15-SO3H를 사용하였다. 반응온도 180 ℃, LHSV=1 h-1, 에탄올/2-naphthol의 몰 비 20인 조건으로 고정층 반응기에서 반응하여 각 촉매에서 2-naphthol의 전환율과 2-naphthyl ethyl ether의 선택도를 측정하였다. 2-naphthol의 전환율과 2-naphthyl ethyl ether의 선택도는 carbon 계열의 고체산 촉매에서 보다 silica 계열의 고체산 촉매에서 더 높게 나타났다. silica 계열의 고체산 촉매에서 2-naphthol의 전환율은 70~90%, 2-naphthyl ethyl ether의 선택도는 90%이상으로 나타났다. 촉매의 특성을 관찰하기 위해 XRD, SEM, TEM, NH3-TPD를 수행하였다.
The etherification of 2-naphthol with ethanol has been carried out over various solid acid catalysts. CNS, CNSWS, SCMS, MCF, and SBA-15 with and without sulfonic acid were used in this study as solid acid catalysts. The conversion of 2-naphthol and the selectivity of 2-naphthyl ethyl ether were obtained at reaction temperature = 180 ℃, LHSV = 1 h-1, ethanol/2-naphthol molar ratio = 20 using a fixed-bed down flow reactor. The conversion of 2-naphthol and the selectivity of 2-naphthyl ethyl ether over silica group catalysts were higher than them over carbon group catalysts. The conversion of 2-naphthol was 70-90% and the selectivity of 2-naphthyl ethyl ether was more than 90% over silica group solid acid catalysts. It was performed XRD, SEM, TEM, and NH3-TPD to characterize solid acid catalysts.
Keywords:
Etherification; 2-Naphthol; Solid Acid Catalysts; Carbon Nano Spheres; Carbon Nano Spheres with Silica
[References]
- Yadav GD, Krishnan MS, Ind. Eng. Chem. Res., 37(8), 3358, 1998
- Selvaraj M, Pandurangan A, Seshadri KS, Sinha PK, Krishnasamy V, Lal KB, J. Mol. Catal. A-Chem., 192(1-2), 153, 2003
- Chen LW, Chou CY, Ko AN, Appl. Catal. A: Gen., 178(1), L1, 1999
- Kim JW, Kim DJ, Han JU, Kang M, Kim JM, Yie JE, Catal. Today, 87(1-4), 195, 2003
- Kirumakki SR, Nagaraju N, Chary KVR, Narayanan S, J. Catal., 221(2), 549, 2004
- Porchet S, Kiwiminsker L, Doepper R, Renken A, Chem. Eng. Sci., 51(11), 2933, 1996
- Yoon SB, Sohn K, Kim JY, Shin CH, Yu JS, Hyeon T, Adv. Mater., 14(1), 19, 2002
- Zhao DY, Feng JL, Huo QS, Melosh N, Fredrickson GH, Chmelka BF, Stucky GD, Science, 279(5350), 548, 1998
- Zhao D, Huo Q, Feng J, Chmelka BF, Stucky GD, J. Am. Chem. Soc., 120(24), 6024, 1998
- Lettow JS, Han YJ, Schmidt-Winkel P, Yang PD, Zhao DY, Stucky GD, Ying JY, Langmuir, 16(22), 8291, 2000
- Szymaska K, Bryjak J, Mrowiec-Bialon J, Jarze˛bski AB, Microporous Mesoporous Mater., 99(1-2), 167, 2007
- Kim H, Jung JC, Kim P, Yeom SH, Lee KY, Song IK, J. Mol. Catal. A-Chem., 259(1-2), 150, 2006
- Takagaki A, Toda M, Okamura M, Kondo JN, Hayashi S, Domen K, Hara M, Catal. Today, 116(2), 157, 2006
- Yang LM, Wang YJ, Luo GS, Dai YY, Microporous Mesoporous Mater., 84(1-3), 275, 2005
- Zheng Y, Li J, Zhao N, Wei W, Sun Y, Microporous Mesoporous Mater., 92(1-3), 195, 2006
- Karimi B, Khalkhali M, J. Mol. Catal. A-Chem., 271(1-2), 75, 2007
- Gupta R, Paul S, Gupta R, J. Mol. Catal. A-Chem., 266(1-2), 50, 2007
- Margolese D, Melero JA, Christiansen SC, Chmelka BF, Stucky GD, Chem. Mater., 12(8), 2448, 2000
- Reddy SS, Raju BD, Kumar VS, Padmasri AH, Narayanan S, Rao KSR, Catal. Commun., 8(3), 261, 2007
- Kumar VS, Nagaraja BM, Shashikala V, Seetharamulu P, Padmasri AH, Raju BD, Rao KSR, J. Mol. Catal. A-Chem., 223(1-2), 283, 2004
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.