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Updated: Apr 18, 2026
Reducing Willow Wood Fuel Emission by Low Temperature Microwave Assisted Hydrothermal Carbonization
Published on: May 19, 2019
A kinetic study on microwave-assisted conversion of cellulose and lignocellulosic waste into
Viviane da Silva Lacerda1, Juan Benito López-Sotelo1, Adriana Correa-Guimarães1
1Department of Agricultural and Forestry Engineering, Higher Technical School of Agricultural Engineering, University of Valladolid, Avenida de Madrid 44, 34004 Palencia, Spain.
Abstract:
Native cellulose, lignocellulosic materials from Brazil (carnauba palm leaves and macauba pulp and shell) and pine nut shell from Spain have been studied as substrates for the production of HMF and furfural in a conventional microwave oven. In order to promote the dissolution of native cellulose, several ionic liquids, catalysts, organic solvents and water doses have been assessed. The most suitable mixture (5mL of choline chloride/oxalic acid, 2mL of sulfolane, 2mL of water, 0.02g of TiO2 and 0.1g of substrate) has been chosen to conduct kinetic studies at different reaction times (5-60min) and various temperatures (120-200°C) and to evaluate the best conditions for HMF+furfural production according to Seaman's model. The best production yields of HMF+furfural have been attained for native cellulose, with a yield of 53.24% when an ultrasonic pretreatment was used prior to a microwave treatment with stirring.
