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Received December 20, 2008
Accepted January 21, 2009
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Effect of Cs(x)H(3-x)PW(12)O(40) addition on the catalytic performance of ZnFe(2)O(4) in the oxidative dehydrogenation of n-butene to 1,3-butadiene
Howon Lee
Ji Chul Jung
Heesoo Kim
Young-Min Chung1
Tae Jin Kim1
Seong Jun Lee1
Seung-Hoon Oh1
Yong Seung Kim1
In Kyu Song†
School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Gwanak-gu, Seoul 151-744, Korea 1SK Energy Corporation, Yuseong-gu, Daejeon 305-712, Korea
inksong@snu.ac.kr
Korean Journal of Chemical Engineering, July 2009, 26(4), 994-998(5), 10.1007/s11814-009-0165-z
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Abstract
Oxidative dehydrogenation of n-butene to 1,3-butadiene over ZnFe(2)O(4) catalyst mixed with Cs(x)H(3-x)PW(12)O(40) heteropolyacid (HPA) was performed in a continuous flow fixed-bed reactor. The effect of Cs(x)H(3-x)PW(12)O(40) addition on the catalytic performance of ZnFe(2)O(4) was investigated. Cs(x)H(3-x)PW(12)O(40) itself showed very low catalytic performance in the oxidative dehydrogenation of n-butene. However, addition of small amount of Cs(x)H(3-x)PW(12)O(40) into ZnFe(2)O(4) enhanced the catalytic performance of ZnFe(2)O(4) catalyst. The catalytic performance of ZnFe(2)O(4)-Cs(x)H(3-x)PW(12)O(40) mixed catalysts was closely related to the surface acidity of Cs(x)H(3-x)PW(12)O(40). Among the catalysts tested, ZnFe(2)O(4)-Cs(2.5)H(0.5)PW(12)O(40) mixed catalyst showed the best catalytic performance. Strong acid strength and large surface acidity of Cs(2.5)H(0.5)PW(12)O(40) was responsible for high catalytic performance of ZnFe(2)O(4)-Cs(2.5)H(0.5)PW(12)O(40) mixed catalyst. Thus, Cs(2.5)H(0.5)PW(12)O(40) could be utilized as an efficient promoter and diluent in formulating ZnFe(2)O(4) catalyst for the oxidative dehydrogenation of n-butene.
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References
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Rennard Jr. RA, Innes RA, Swift HE, J. Catal., 30, 128 (1973)
Lee H, Jung JC, Kim H, Chung YM, Kim TJ, Lee SJ, Oh SH, Kim YS, Song IK, Catal. Commun., 9, 1137 (2008)
Lee H, Jung JC, Kim H, Chung YM, Kim TJ, Lee SJ, Oh SH, Kim YS, Song IK, Catal. Lett., 122, 281 (2008)
Gibson MA, Hightower JW, J. Catal., 41, 431 (1976)
Cares WR, Hightower JW, J. Catal., 23, 193 (1971)
Tiwari PN, Alkhazov TG, Adzamov KU, Khanmamedova AK, J. Catal., 120, 278 (1989)
Toledo-Antonio JA, Nava N, Martinez M, Bokhimi X, Appl. Catal. A: Gen., 234(1-2), 137 (2002)
Jung JC, Lee H, Kim H, Chung YM, Kim TJ, Lee SJ, Oh SH, Kim YS, Song IK, Catal. Commun., 9, 447 (2008)
Jung JC, Lee H, Kim H, Chung YM, Kim TJ, Lee SJ, Oh SH, Kim YS, Song IK, J. Mol. Catal. A-Chem., 271(1-2), 261 (2007)
Jung JC, Kim H, Kim YS, Chung YM, Kim TJ, Lee SJ, Oh SH, Song IK, Appl. Catal. A: Gen., 317(2), 244 (2007)
Lee H, Jung JC, Kim H, Chung YM, Kim TJ, Lee SJ, Oh SH, Kim YS, Song IK, Catal. Lett., 124, 364 (2008)
Kung HH, Kundalkar B, Kung MC, Cheng WH, J. Phys. Chem., 84, 382 (1980)
Zhang M, Lan R, Liu J, Chen X, Zhou W, J. Chem. Soc. Farady Trans., 99, 637 (1992)
Xu WQ, Yin YG, Li GY, Chen S, Appl. Catal. A, 89, 117 (1992)
Kung HH, Kung MC, Adv. Catal., 33, 159 (1985)
Xu WQ, Yin YG, Li GY, Chen S, Appl. Catal. A, 89, 131 (1992)
Cullis CF, Hucknall DJ, A specialist periodical report: catalysis, Royal Chem. Soc., London (1982)
Grasselli RK, Burrington JD, Adv. Catal., 30, 133 (1981)
La KW, Kim H, Jung JC, Lee J, Park DR, Lee SH, Song IK, Korean J. Chem. Eng., 25(4), 710 (2008)
Kim H, Jung JC, Park DR, Lee J, Cho KM, Park S, Lee SH, Song IK, Korean J. Chem. Eng., 25(2), 231 (2008)
Misono M, Catal. Rev. -Sci. Eng., 29, 269 (1987)
Okuhara T, Mizuno N, Misono M, Adv. Catal., 41, 113 (1996)
Park S, Lee SH, Song SH, Park DR, Baeck SH, Kim TJ, Chung YM, Oh SH, Song IK, Catal. Comm., 10, 391 (2009)
Kozhevnikov IV, Chem. Rev., 98(1), 171 (1998)
Park DR, Song JH, Lee SH, Song SH, Kim H, Jung JC, Song IK, Appl. Catal. A, 349, 222 (2008)
Park DR, Lee SH, Lee J, Song SH, Kim H, Song JH, Song IK, Catal. Lett., 126, 308 (2008)
Pope MT, Heteropoly and isopoly oxometalates, Springer, New York (1983)
Rennard RJ, Kehl WL, J. Catal., 21, 282 (1971)
Massoth FE, Scarpiello DA, J. Catal., 21, 294 (1971)
Okuhara T, Nishimura T, Misono M, Chem. Lett., 155 (1995)
