High utilization of methanol in toluene methylation using MFI zeolite nanosponge catalyst

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A highly mesoporous MFI zeolite nanosponge, which was composed of a disordered assembly of 2.5-nm thick zeolite frameworks, was synthesized using a meso-and micropore dual structure-directing surfactant. The zeolite nanosponge was investigated as a catalyst for toluene methylation by methanol. The results showed remarkably high toluene conversion and xylene yield, in comparison with the bulk zeolite counterparts. The high catalytic performance was attributed to the suppression of side reactions that could convert methanol to linear hydrocarbons. This suppression can be attributed to the fact that the dealkylation of polymethylbenzenes, which must take place before linear hydrocarbon formation, did not occur significantly in the zeolite nanosponge as compared to the case of bulk zeolites. In addition to the aforementioned high performance, the MFI zeolite nanosponge was also superior to the bulk MFI in terms of catalytic longevity.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2018-04
Language
English
Article Type
Article; Proceedings Paper
Keywords

PARA-XYLENE; P-31 NMR; ALKYLATION; NANOSHEETS; CONVERSION; KINETICS; H-ZSM-5; OLEFINS; SITES; ZSM-5

Citation

CATALYSIS TODAY, v.303, pp.143 - 149

ISSN
0920-5861
DOI
10.1016/j.cattod.2017.09.056
URI
http://hdl.handle.net/10203/240590
Appears in Collection
CH-Journal Papers(저널논문)
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