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Korean Journal of Chemical Engineering, Vol.35, No.4, 867-874, 2018
Methanol aromatization over CrZn-modified HZSM-5 catalysts
HZSM-5 (HZ) zeolite co-modified with Zn and second promoters (Zr, Ce, Mo and Cr) was synthesized and the aromatization of methanol over the modified HZ in a fixed-bed reactor was investigated. The results of catalytic tests revealed that the methanol conversion and yield of benzene, toluene, and xylene (BTX) over the Cr, Zn comodification HZ (CrZn/HZ) were higher than that over ZrZn/HZ, CeZn/HZ, and MoZn/HZ. The catalysts were characterized by XRD, SEM, TEM, XPS, N2 isothermal adsorption-desorption and NH3-TPD. The results suggest that Zn species exist in two forms in the HZ zeolite. One is ZnO particle, the other one is ZnOH+, which significantly improveds the yield of BTX. Furthermore, the Cr species on the external surface promoted the dispersion of ZnO, increased the amount of ZnOH+, which further improved the yield of BTX. In addition, the optimal Cr2Zn1/HZ catalyst exhibited better catalytic performance and prolonged lifetime of reaction.
[References]
- Xu XW, Jiang EC, Du YH, Li BS, Renew. Energy, 96, 458, 2016
- Phatanasri S, Praserthdam P, Sripusitto A, Korean J. Chem. Eng., 17(4), 409, 2000
- Tamiyakul S, Anutamjarikun S, Jongpatiwut S, Catal. Commun., 74, 49, 2016
- Bi Y, Wang Y, Chen X, Yu Z, Xu L, Chin. J. Catal., 35, 1740, 2014
- Wang F, Xiao W, Gao L, Xiao G, Catal. Sci. Technol., 6, 3074, 2016
- Li J, Hu C, Tong K, Xiang H, Zhu Z, Hu Z, RSC Adv., 4, 44377, 2014
- Inoue Y, Nakashiro K, Ono Y, Micropor. Mater., 4, 379, 1995
- Xiao H, Zhang J, Wang X, Zhang Q, Xie H, Han Y, Tan Y, Catal. Sci. Technol., 5, 4081, 2015
- Ni Y, Sun A, Wu X, Hai G, Hu J, Li T, Li G, Microporous Mesoporous Mater., 143, 435, 2011
- Zhang GQ, Bai T, Chen TF, Fan WT, Zhang X, Ind. Eng. Chem. Res., 53(39), 14932, 2014
- Long H, Jin F, Xiong G, Wang X, Microporous Mesoporous Mater., 198, 29, 2014
- Xin YB, Qi PY, Duan XP, Lin HQ, Yuan YZ, Catal. Lett., 143(8), 798, 2013
- Majhi S, Mohanty P, Dalai AK, Pant KK, Energy Technol., 1, 157, 2013
- Hadi N, Niaei A, Nabavi SR, Shirazi MN, Alizadeh R, J. Ind. Eng. Chem., 29, 52, 2015
- Alyani M, Towfighi J, Sadrameli SM, Korean J. Chem. Eng., 28(6), 1351, 2011
- Amin NAS, Anggoro DD, J. Nat. Gas. Chem., 12, 123, 2003
- Mysov VM, Reshetnikov SI, Stepanov VG, Ione KG, Chem. Eng. J., 107(1-3), 63, 2005
- Lacarriere A, Luck F, Swierczynski D, Fajula F, Hulea V, Appl. Catal. A: Gen., 402(1-2), 208, 2011
- Schulz H, Catal. Today, 154(3-4), 183, 2010
- Ono Y, Adachi H, Senoda Y, J. Chem. Soc. Faraday Trans., 84, 1091, 1988
- Sun C, Yang Y, Du J, Qin F, Liu Z, Shen W, Xu H, Tang Y, Chem. Commun., 48, 5787, 2012
- Hajjar Z, Khodadadi A, Mortazavi Y, Tayyebi S, Soltanali S, Fuel, 179, 79, 2016
- Almutairi SMT, Mezari B, Magusin PCMM, Pidko EA, Hensen EJM, ACS Catal., 2, 71, 2012
- Fattahi M, Behbahani RM, Hamoule T, Fuel, 181, 248, 2016
- Katada N, Igi H, Kim JH, Niwa M, J. Phys. Chem. B, 101(31), 5969, 1997
- Rodriguez-Gonzalez L, Hermes F, Bertmer M, Rodriguez-Castellon E, Jimenez-Lopez A, Simon U, Appl. Catal. A: Gen., 328(2), 174, 2007
- Niu X, Gao J, Miao Q, Dong M, Wang G, Fan W, Qin Z, Wang J, Microporous Mesoporous Mater., 197, 252, 2014
- Biscardi JA, Meitzner GD, Iglesia E, J. Catal., 179(1), 192, 1998
- Wang X, Zhang J, Zhang T, Xiao H, Song F, Han Y, Tan Y, RSC Adv., 6, 23428, 2016
- Roy M, Ghosh S, Naskar MK, Mat. Chem. Phys., 159, 101, 2015
- Sapawe N, Jalil AA, Triwahyono S, Sah RNRA, Jusoh NWC, Hairom NHH, Efendi J, Appl. Catal. A: Gen., 456, 144, 2013
- Tian P, Wei Y, Ye M, Liu Z, ACS Catal., 5, 1922, 2015
- Li JZ, Wei YX, Liu GY, Qi Y, Tian P, Li B, He YL, Liu ZM, Catal. Today, 171(1), 221, 2011
- Bjorgen M, Svelle S, Joensen F, Nerlov J, Kolboe S, Bonino F, Palumbo L, Bordiga S, Olsbye U, J. Catal., 249(2), 195, 2007
- Ilias S, Bhan A, J. Catal., 290, 186, 2012
- Chen X, Dong M, Niu X, Wang K, Chen G, Fan W, Wang J, Qin Z, Chin. J. Catal., 36, 880, 2015
[Cited By]
- Lee HW, Lee HJ, Park YK, Applied Chemistry for Engineering, 31(1), 57, 2020
- Jeong BJ, Shin MC, Jeong BH, Park JH, Korean Journal of Chemical Engineering, 38(7), 1394, 2021
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