Palladium-Nafion SAC-13 catalysed depolymerisation of lignin to phenols in formic acid and water |
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Authors: | Lucia Liguori Tanja Barth |
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Affiliation: | University of Bergen, Allégaten 41, 5007 Bergen, Norway |
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Abstract: | Guaiacol, pyrocatechol and resorcinol, were isolated and quantified as the major products from catalytic pyrolysis of lignin of various origin. The novel procedure utilises formic acid as the hydrogen source in combination with a palladium catalyst and Nafion® SAC-13 as a solid acid catalyst with water as reaction medium. The reaction is conducted at moderate pyrolysis temperature and short reaction time. Several palladium based catalysts and different types of lignin were investigated. The lignins and the model compounds demonstrated various chemical behaviour, under identical reaction conditions; various phenols were formed from the lignins, while the model compounds were hydrodeoxygenated, demethylated and demethoxylated. |
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Keywords: | Lignin catalytic pyrolysis Palladium Nafion SAC-13 Phenols GC-MS Quantification |
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