The study of methanol aromatization on transition metal modified ZSM-5 catalyst

doi:10.1016/j.cjche.2018.03.024

Chin.J.Chem.Eng. ›› 2018, Vol. 26 ›› Issue (9): 1949-1953.DOI: 10.1016/j.cjche.2018.03.024

• Catalysis, Kinetics and Reaction Engineering • Previous Articles Next Articles

The study of methanol aromatization on transition metal modified ZSM-5 catalyst

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li

State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Received:2017-07-11 Revised:2018-03-09 Online:2018-10-17 Published:2018-09-28
Contact: Kan Zhang,E-mail address:zhangkan@sxicc.ac.cn
Supported by:
Supported by the Key Technology and Demonstration on Low Rank Coal Clean, Efficient and Cascade Application Project; Synthesis Technology of Coal-based Bulk Chemical and Fuel; Research on Key Technology of Methanol to Aromatics (MTA) (XDA 07070800).

The study of methanol aromatization on transition metal modified ZSM-5 catalyst

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li

State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

通讯作者: Kan Zhang,E-mail address:zhangkan@sxicc.ac.cn
基金资助:
Supported by the Key Technology and Demonstration on Low Rank Coal Clean, Efficient and Cascade Application Project; Synthesis Technology of Coal-based Bulk Chemical and Fuel; Research on Key Technology of Methanol to Aromatics (MTA) (XDA 07070800).

Abstract

Abstract: In this article, transition metals of Cu, La and Zn were used as adjuvant to prepare modified HZSM-5 by impregnation method. The catalysts were characterized by XRD, BET, NH₃-TPD and Py-IR to reveal the microstructure and acid property. The catalysis performances of methanol aromatization of catalysts were investigated in a fixed-bed reactor. The results show that the strength and distribution of acid center of these catalysts are significantly influenced by the species of transition metal. There are more mediate strong Lewis acid center in Zn modified HZSM-5 catalyst and therefore exhibits higher selectivity to aromatic, benzene, toluene and xylenes in the MTA reaction.

Key words: Aromatization, ZSM-5, Metal modified

摘要： In this article, transition metals of Cu, La and Zn were used as adjuvant to prepare modified HZSM-5 by impregnation method. The catalysts were characterized by XRD, BET, NH₃-TPD and Py-IR to reveal the microstructure and acid property. The catalysis performances of methanol aromatization of catalysts were investigated in a fixed-bed reactor. The results show that the strength and distribution of acid center of these catalysts are significantly influenced by the species of transition metal. There are more mediate strong Lewis acid center in Zn modified HZSM-5 catalyst and therefore exhibits higher selectivity to aromatic, benzene, toluene and xylenes in the MTA reaction.

关键词: Aromatization, ZSM-5, Metal modified

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li. The study of methanol aromatization on transition metal modified ZSM-5 catalyst[J]. Chin.J.Chem.Eng., 2018, 26(9): 1949-1953.

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li. The study of methanol aromatization on transition metal modified ZSM-5 catalyst[J]. Chinese Journal of Chemical Engineering, 2018, 26(9): 1949-1953.

References

[1] H. Wang, T.J. Pinnavaia, MFI zeolite with small and uniform intracrystal mesopores, Angew. Chem. Int. Ed. 45(2006) 7603-7606.

[2] C.D. Chang, A.J. Silvestri, The conversion of methanol and other O-compounds to hydrocarbons over zeolite catalysts, Catalogue 47(1977)249-259.

[3] O.G. Xu, H.Y. Su, J.B. Ji, J. Chu, Kinetic model and simulation analysis for toluene disproportionation and C₉-aromatics transalkylation, Chin. J. Chem. Eng. 15(3) (2007) 326-332.

[4] T. Blasco, A. Coma, Hydrothermal stabilization of ZSM-5 catalytic-cracking additives by phosphorus addition, J. Catal. 237(2006)267-277.

[5] K. Anita, B. Robert, S. Frigyes, Aromatization of dimethyl and diethyl ethers on Mo2C-promoted ZSM-5 catalysts, Catalogue 258(2008) 111-120.

[6] W. Deng, X. He, C. Zhang, Y.Y. Gao, X.D. Zhu, K.K. Zhu, Q.S. Huo, Z.J. Zhou, Promoting xylene production in benzene methylation using hierarchically porous ZSM-5 derived from a modified dry-gel route, Chin. J. Chem. Eng. 22(2014) 921-929.

[7] O.A. Fouad, R.M. Mohamed, M.S. Hassan, Effect of template type and template/silica mole ratio on the crystallinity of synthesized nanosized ZSM-5, Catal. Today 116(2006) 82-87.

[8] B. Morten, S. Stian, J. Finn, Conversion of methanol to hydrocarbons over zeolite HZSM-5:on the origin of the olefinic species, Catalogue 249(2007) 195-207.

[9] H. Teng, J. Wang, X.Q. Ren, D.M. Chen, Disproportionation of toluene by modified ZSM-5 zeolite catalysts with high shape-selectivity prepared using chemical liquid deposition with tetraethyl orthosilicate, Chin. J. Chem. Eng. 19(2011)292-298.

[10] Y. Bi, Y.L. Wang, Z.X. Yu, Methanol aromatization over HZSM-5 catalysts modified with different zinc salts, Chin. J. Catal. (10) (2014) 1740-1751.

[11] X.J. Niu, J. Gao, Q. Miao, Influence of preparation method on the performance of Zncontaining HZSM-5 catalysts in methanol-to-aromatics, Microporous Mesoporous Mater. 197(2014)252-261.

[12] G. Yang, Y. Wang, D.H. Zhou, Investigation on the thermal stability of La/ZSM-5 zeolite and the La³⁺ species, Acta Phys. -Chim. Sin. 1(2004) 60-64.

[13] Y. Ni, W.Y. Peng, A.M. Sun, High selective and stable performance of catalytic aromatization of alcohols and ethers over La/Zn/HZSM-5 catalysts, J. Ind. Eng. Chem. 16(2010) 503-505.

[14] H.A. Zaidi, K.K. Pant, Catalytic conversion of methanol to gasoline range hydrocarbons, Catal. Today 96(2004) 155-160.

[15] M. Conte, Q. He, D.J. Morgan, Modified zeolite ZSM-5 for the methanol to aromatics reaction, Catal. Sci. Technol. 2(2012) 105-112.

[16] Y. Ni, A.M. Sun, X.L. Wu, The preparation of nano-sized H[Zn, Al]ZSM-5 zeolite and its application in the aromatization of methanol, Microporous Mesoporous Mater. 143(2011) 435-442.

[17] Y.Q. Song, X.X. Zhu, L.Y. Xu, Study on the process of transformation of olefin into aromatics over HZSM-5, Catal. Commun. 7(2006)218-223.

The study of methanol aromatization on transition metal modified ZSM-5 catalyst

The study of methanol aromatization on transition metal modified ZSM-5 catalyst

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