Title:
Catalytic Wet Oxidation of Lignin for Production of Carboxylic Acids
Author(s):
Demesa, A., Laari, A., Sillanpää, M.
Document(s):
Paper
Poster
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.
Keywords:
lignin, wet oxidation, catalyst, heteropoly acids
Topic:
Biomass Conversion Technologies for Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Biorefineries and chemicals production
Event:
23rd European Biomass Conference and Exhibition
Session:
3AV.3.54
Pages:
1137 - 1139
ISBN:
978-88-89407-516
Paper DOI:
10.5071/23rdEUBCE2015-3AV.3.54
Price:
FREE
