Effects of lignocellulosic composition and microwave power level on the gaseous product of microwave pyrolysis
Journal
Energy
Journal Volume
89
Pages
974-981
Date Issued
2015
Author(s)
Abstract
Agricultural residues are abundant resources to produce renewable energy and valuable chemicals. This study focused on the effects of lignocellulosic composition and microwave power level on the gaseous product of microwave pyrolysis of agricultural residues. When agricultural residues were under microwave radiation within 10 min, the maximum temperatures of approximately 320, 420, and 530 °C were achieved at the microwave power levels of 300, 400, and 500 W, respectively. Gas yield increased with increasing microwave power level, whereas solid and liquid yields decreased. Besides, gaseous products with higher H2 content and higher calorific values can be obtained at higher microwave power levels. In addition to microwave power level, lignocellulosic composition was also an important factor. H2 and CO2 yields increased with increasing hemicellulose content, whereas CH4 and CO yields increased with increasing cellulose content. Four empirical equations were derived to present the contributions of lignocellulosic materials to the yields of gaseous components. © 2015 Elsevier Ltd.
SDGs
Other Subjects
Agricultural wastes; Agriculture; Cellulose; Microwave generation; Microwave power transmission; Empirical equations; Gas yields; Lignocellulose; Lignocellulosic material; Maximum temperature; Microwave power levels; Microwave pyrolysis; Power levels; Microwaves; crop residue; energy resource; gas; lignin; microwave radiation; pyrolysis; renewable resource; temperature effect
Publisher
Elsevier Ltd
Type
journal article