Modified method for proximate analysis of biochars

• Published in: Journal of analytical and applied pyrolysis Vol. 124; pp. 335 - 342
• Main Authors: Aller, Deborah, Bakshi, Santanu, Laird, David A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2017
• Subjects: ash content; biochar; Biochar stability; carbon; Fixed carbon; fuels; hardwood; N2 purge; oxidation; Proximate analysis; proximate composition; pyrolysis; soil amendments; temperature; variance; VM/FC ratio; Volatile matter; N2 purge; Biochar stability; Volatile matter; VM/FC ratio; Proximate analysis; Fixed carbon

•The ASTM D1762-84 proximate analysis method is problematic for biochars.•An inert gas purge is needed for both moisture and volatile matter determinations to avoid partial oxidation.•800°C is the minimum temperature needed to determine volatile matter.•A modified proximate analysis method for bioch...