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Pt/Ni wet impregnated over Al incorporated mesoporous silicates: a highly efficient catalyst for anisole hydrodeoxygenation

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Abstract

This work reports, formation of benzene from anisole via hydrodeoxygenation process using vapour phase fixed bed reactor. The surface properties of bimetallic catalysts such as textural properties, acidic, and Pt/Ni dispersion has established by various characterization techniques. The reaction was carried out at 370 and 420 °C with space velocity 3.3 & 6.6 h− 1, over acidic and non-acidic supported mono and bimetallic catalysts. The optimum conversion and selectivity was observed at 420 °C and WHSV = 3.3 h− 1 for all mono and bimetallic catalysts. Pt/Ni/Al-SBA-15 acidic bimetallic catalyst shows maximum anisole conversion 59% with benzene selectivity 37% under atmospheric pressure, due to the more acidic centres and high dispersion of Pt/Ni species on the bimetallic catalyst, enhance the anisole conversion; this was proved by NH3-TPD and HR-TEM analysis. The acidic Pt/Ni bimetallic catalyst shows higher anisole conversion as compared to the mono metallic Pt/Ni catalysts and it works predominantly through demethylation and hydrogenolysis reaction pathway.

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Acknowledgements

The author acknowledges UGC-BSR (603/PD6/2007) New Delhi, India for the awarding of Research Fellowship. The facilities provided by DST-FIST (SR/S5/NM-35/2005) and UGC-DRS are gratefully acknowledged.

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Authors and Affiliations

  1. Department of Chemistry, Anna University, Chennai, 600 025, India

    Pichaikaran Sudhakar & Arumugam Pandurangan

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  1. Pichaikaran Sudhakar
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  2. Arumugam Pandurangan
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Correspondence to Arumugam Pandurangan.

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Sudhakar, P., Pandurangan, A. Pt/Ni wet impregnated over Al incorporated mesoporous silicates: a highly efficient catalyst for anisole hydrodeoxygenation. J Porous Mater 25, 747–759 (2018). https://doi.org/10.1007/s10934-017-0488-9

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  • DOI: https://doi.org/10.1007/s10934-017-0488-9

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