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Effects of grain size and aggregation state of ZSM-5 on para-selectivity in alkylation of toluene with methanol

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Abstract

The effect of nano-scale P2O5-ZSM-5 aggregates (NZA), dispersed nano-scale P2O5-ZSM-5 (DNZ), and micron-scale P2O5-ZSM-5 (MZ) on para-selectivity was investigated in detail. XRD, SEM, N2 physical absorption–desorption, NH3-TPD, Py-FT-IR, etc. were used to analyze the difference of nano-scale (~ 100 nm) and micron-scale ZSM-5. The results showed that, with the same amount of modifier, ZSM-5 aggregates showed the highest para-selectivity, followed by micron-scale ZSM-5, and dispersed nano-scale ZSM-5 (~ 100 nm). In addition, the nano-scale ZSM-5 also showed a better capacity to accommodate carbon deposition and higher activity.

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Funding

This study was supported by the National Natural Science Foundation of China (No.21676028).

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Authors and Affiliations

  1. College of Chemistry and Materials Engineering, Bohai University, Jinzhou 121013, Liaoning, China

    Yan Zhao, Xinhui Ma, Dongmei Ren & Yunsheng Xia

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  1. Yan Zhao
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  2. Xinhui Ma
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  3. Dongmei Ren
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  4. Yunsheng Xia
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Correspondence to Yan Zhao.

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Zhao, Y., Ma, X., Ren, D. et al. Effects of grain size and aggregation state of ZSM-5 on para-selectivity in alkylation of toluene with methanol. J Nanopart Res 24, 26 (2022). https://doi.org/10.1007/s11051-022-05408-4

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