Energies | |
Some Chemical Compositional Changes in Miscanthus and White Oak Sawdust Samples during Torrefaction | |
Jaya Shankar Tumuluru1  Richard D. Boardman2  Christopher T. Wright2  | |
[1] Idaho National Laboratory, Energy Systems and Technologies Directorate, Biofuels and Renewable Energies Department, P.O. Box 1625, Idaho Falls, ID 83415-2025, USA; | |
关键词: miscanthus; white oak sawdust; torrefaction; temperature; time; chemical composition; | |
DOI : 10.3390/en5103928 | |
来源: mdpi | |
【 摘 要 】
Torrefaction tests on miscanthus and white oak sawdust were conducted in a bubbling sand bed reactor to see the effect of temperature and residence time on the chemical composition. Process conditions for miscanthus and white oak sawdust were 250–350 °C for 30–120 min and 220–270 °C for 30 min, respectively. Torrefaction of miscanthus at 250 °C and a residence time of 30 min resulted in a significant decrease in moisture—about 82.68%—but the other components—hydrogen, nitrogen, sulfur, and volatiles—changed only marginally. Increasing torrefaction temperatures to 350 °C with a residence time of 120 min further reduced the moisture content to 0.54%, with a significant decrease in the hydrogen, nitrogen, and volatiles by 58.29%, 14.28%, and 70.45%, respectively. Regression equations developed for the moisture, hydrogen, nitrogen, and volatile content of the samples with respect to torrefaction temperature and time have adequately described the changes in chemical composition based on
【 授权许可】
CC BY
© 2012 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190041445ZK.pdf | 1136KB | download |