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Hydrodeoxygenation of m-Cresol over Ru based catalysts: Influence of catalyst support on m-Cresol conversion and methylcyclohexane selectivity

Author

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  • Kumar, Adarsh
  • Kumar, Avnish
  • Biswas, Bijoy
  • Kumar, Jitendra
  • Yenumala, Sudhakara Reddy
  • Bhaskar, Thallada

Abstract

The hydrodeoxygenation (HDO) of m-Cresol (a representative of lignin bio-oil) has enormous potential for the production of valuable compounds. The products obtained from HDO of m-Cresol (m-Cr) are blendable into conventional fuels and essential for chemical industries such as plastic, fiber, rubber, resin, film, and coating industry. Ruthenium loaded acidic supports (ZSM-5, β-zeolite, y-zeolite, mordenite, COK12, ZrO2, TiO2) were used for the selective hydrodeoxygenation of m-Cresol into methylcyclohexane (MCXane). The effects of acid sites, as well as the pore size of the different supports on the hydrodeoxygenation activity and selectivity towards methylcyclohexane were addressed. The methylcyclohexane yield increased with increasing number of acid sites up to optimum acidity (532 μmol/gm) along with pore size (5.9 Ao). The experiments were carried out at 225–325 °C and 1–40 bar hydrogen pressure in a fixed bed reactor and observed that reaction temperature, and hydrogen pressure promoted the hydrodeoxygenation. The Ru/ZSM-5 is a stable (240 h) catalyst and displayed excellent behavior in both hydrodeoxygenation activity (100%) and methylcyclohexane selectivity (100%) for m-Cresol.

Suggested Citation

  • Kumar, Adarsh & Kumar, Avnish & Biswas, Bijoy & Kumar, Jitendra & Yenumala, Sudhakara Reddy & Bhaskar, Thallada, 2020. "Hydrodeoxygenation of m-Cresol over Ru based catalysts: Influence of catalyst support on m-Cresol conversion and methylcyclohexane selectivity," Renewable Energy, Elsevier, vol. 151(C), pages 687-697.
    • Handle: RePEc:eee:renene:v:151:y:2020:i:c:p:687-697
    DOI: 10.1016/j.renene.2019.11.076
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    References listed on IDEAS

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    1. Zhang, Xinghua & Wang, Tiejun & Ma, Longlong & Zhang, Qi & Huang, Xiaoming & Yu, Yuxiao, 2013. "Production of cyclohexane from lignin degradation compounds over Ni/ZrO2–SiO2 catalysts," Applied Energy, Elsevier, vol. 112(C), pages 533-538.
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    Cited by:

    1. Lv, Wei & Hu, Xiaohong & Zhu, Yuting & Xu, Ying & Liu, Shijun & Chen, Peili & Wang, Chenguang & Ma, Longlong, 2022. "Molybdenum oxide decorated Ru catalyst for enhancement of lignin oil hydrodeoxygenation to hydrocarbons," Renewable Energy, Elsevier, vol. 188(C), pages 195-210.
    2. Tai, Lingyu & Hamidi, Roya & de Caprariis, Benedetta & Damizia, Martina & Paglia, Laura & Scarsella, Marco & Karimzadeh, Ramin & De Filippis, Paolo, 2022. "Guaiacol hydrotreating with in-situ generated hydrogen over ni/modified zeolite supports," Renewable Energy, Elsevier, vol. 182(C), pages 647-658.
    3. Li, Sen & Guo, Longhui & He, Xinyu & Qiao, Congzhen & Tian, Yajie, 2022. "Synthesis of uniform Ni nanoparticles encapsulated in ZSM–5 for selective hydrodeoxygenation of phenolics," Renewable Energy, Elsevier, vol. 194(C), pages 89-99.

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