Aromatics from biomass pyrolysis vapour using a bifunctional mesoporous catalyst

Shantanu Kelkar, Christopher M. Saffron, Zhenglong Li, Seong Su Kim, Thomas J. Pinnavaia, Dennis J. Miller, Robert Kriegel

    Research output: Contribution to journalArticle

    • 32 Citations

    Abstract

    Zeolites with uniform intracrystal mesopores, designated MSU-MFI, were prepared using silane-modified polymers as mesopore-generating agents. X-ray diffraction analysis of this catalyst showed Braggs peaks representative of MFI structure. Catalyst characterization by nitrogen physisorption revealed a mesoporous structure with high surface area, pore size and volume. The MSU-MFI catalysts developed in this study were selective toward aromatic chemical production from poplar pyrolysis vapour. Yields of generalized products and aromatics were comparable to those obtained from conventional microporous ZSM-5 analogs as demonstrated by pyroprobe-gas chromatography/mass spectrometry and thermogravimetric analysis. While ZSM-5 was more selective to smaller C6 aromatics and naphthalenes, MSU-MFI catalysts were more selective to C8 and C9 monoaromatics. The incorporation of gallium(iii) ions in MSU-MFI using the incipient wetness method increased aromatic yields by up to 15% over Ga-free catalysts and decreased the coke production by up to 6% (p <0.05). Due to high yields and low coke formation, Ga-MSU-MFI offers an improved option for making non-oxygenated aromatic chemicals from photosynthetic biomass.

    Original languageEnglish (US)
    Pages (from-to)803-812
    Number of pages10
    JournalGreen Chemistry
    Volume16
    Issue number2
    DOIs
    StatePublished - Feb 2014

    Profile

    Catalysts
    Afferent Loop Syndrome
    catalyst
    Coke
    Biomass
    Pyrolysis
    Vapors
    Alcuronium
    Panthera
    pyrolysis
    biomass
    Physisorption
    Gallium
    Naphthalene
    Zeolites
    Silanes
    Gas chromatography
    X ray diffraction analysis
    Pore size
    Mass spectrometry

    ASJC Scopus subject areas

    • Environmental Chemistry
    • Pollution

    Cite this

    Kelkar, S., Saffron, C. M., Li, Z., Kim, S. S., Pinnavaia, T. J., Miller, D. J., & Kriegel, R. (2014). Aromatics from biomass pyrolysis vapour using a bifunctional mesoporous catalyst. Green Chemistry, 16(2), 803-812. DOI: 10.1039/c3gc41350k

    Aromatics from biomass pyrolysis vapour using a bifunctional mesoporous catalyst. / Kelkar, Shantanu; Saffron, Christopher M.; Li, Zhenglong; Kim, Seong Su; Pinnavaia, Thomas J.; Miller, Dennis J.; Kriegel, Robert.

    In: Green Chemistry, Vol. 16, No. 2, 02.2014, p. 803-812.

    Research output: Contribution to journalArticle

    Kelkar, S, Saffron, CM, Li, Z, Kim, SS, Pinnavaia, TJ, Miller, DJ & Kriegel, R 2014, 'Aromatics from biomass pyrolysis vapour using a bifunctional mesoporous catalyst' Green Chemistry, vol 16, no. 2, pp. 803-812. DOI: 10.1039/c3gc41350k
    Kelkar S, Saffron CM, Li Z, Kim SS, Pinnavaia TJ, Miller DJ et al. Aromatics from biomass pyrolysis vapour using a bifunctional mesoporous catalyst. Green Chemistry. 2014 Feb;16(2):803-812. Available from, DOI: 10.1039/c3gc41350k

    Kelkar, Shantanu; Saffron, Christopher M.; Li, Zhenglong; Kim, Seong Su; Pinnavaia, Thomas J.; Miller, Dennis J.; Kriegel, Robert / Aromatics from biomass pyrolysis vapour using a bifunctional mesoporous catalyst.

    In: Green Chemistry, Vol. 16, No. 2, 02.2014, p. 803-812.

    Research output: Contribution to journalArticle

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