Journal
BIORESOURCE TECHNOLOGY
Volume 131, Issue -, Pages 374-379Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.12.165
Keywords
Biochar; Conocarpus wastes; Chemical composition; Pyrolysis temperature; Carbon stability
Funding
- NPST, College of Food and Agriculture Sciences, King Saud University, Saudi Arabia [ENV1592-11]
Ask authors/readers for more resources
Conocarpus wastes were pyrolyzed at different temperatures (200-800 degrees C) to investigate their impact on characteristics and chemical composition of biochars. As pyrolysis temperature increased, ash content, pH, electrical conductivity, basic functional groups, carbon stability, and total content of C, N, P, K, Ca, and Mg increased while biochar yield, total content of O, H and S, unstable form of organic C and acidic functional groups decreased. The ratios of O/C, H/C, (O + N)/C, and (O + N + S)/C tended to decrease with temperature. The data of Fourier transformation infrared indicate an increase in aromaticity and a decrease in polarity of biochar produced at a high temperature. With pyrolysis temperature, cellulose loss and crystalline mineral components increased, as indicated by X-ray diffraction analysis and scanning electron microscope images. Results suggest that biochar pyrolized at high temperature may possess a higher carbon sequestration potential when applied to the soil compared to that obtained at low temperature. (C) 2012 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available