A4 Conference proceedings

Catalytic Wet Oxidation of Lignin for Production of Carboxylic Acids


LUT Authors / Editors

Publication Details
Authors: Demesa Abayneh, Laari Arto, Sillanpää Mika
Publication year: 2015
Language: English
Related Journal or Series Information: European Biomass Conference And Exhibition
ISBN: 978-88-89407-516
ISSN: 2282-5819
JUFO-Level of this publication: 0
Open Access: Not an Open Access publication

Abstract
The production of carboxylic acids by partial wet oxidation of alkali lignin is studied experimentally at elevated temperature and pressure. The potentials of heteropoly acids to catalyze the oxidation of lignin under hydrothermal conditions were explored. The factors influencing the total yield of carboxylic acids formed during the partial oxidation of lignin are investigated. Formic, acetic and succinic acids were the major products identified. The results showed that longer reaction time favored both the yield of carboxylic acids and lignin conversion. Among the catalysts used, the phosphovanadomolybdate catalyst gave the most promising results with carboxylic acids yield and lignin conversion up to 42 % and 100 % respectively.

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Last updated on 2017-22-03 at 14:11

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