Selective Degradation of Wood Lignin over Noble-Metal Catalysts in a Two-Step Process

Authors

  • Ning Yan,

    1. PKU Green Chemistry Center, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86) 106-275-1708
    2. Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)
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  • Chen Zhao,

    1. PKU Green Chemistry Center, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86) 106-275-1708
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  • Paul J. Dyson Prof.,

    1. Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)
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  • Chen Wang,

    1. PKU Green Chemistry Center, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86) 106-275-1708
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  • Ling-tao Liu,

    1. PKU Green Chemistry Center, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86) 106-275-1708
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  • Yuan Kou Prof.

    1. PKU Green Chemistry Center, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China), Fax: (+86) 106-275-1708
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Abstract

original image

Breaking down is usually hard to do… The direct conversion of lignin into alkanes and methanol was carried out in a two-step process (hydogenolysis and hydrogenation) involving initial treatment of white birch wood sawdust with H2 in dioxane/water/phosphoric acid using Rh/C as the catalyst. The resulting monomers and dimers obtained by selective C[BOND]O hydrogenolysis were then hydrogenated in near-critical water employing Pd/C as the catalyst.

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