The core factors in determining product distributions during pyrolysis: The synergistic effect of volatile-char interactions and temperature

Anjiang Gao, Kan Zou, Yao Wang, Guoming Gao, Maxim V. Penzik, Alexander N. Kozlov, Yusuf Makarfi Isa, Yong Huang and Shu Zhang

Renewable Energy, 2023, vol. 218, issue C

Abstract: This paper investigated the synergistic effect of volatile-char interaction and temperature on the products generated from poplar pyrolysis. This co-effect influenced the product distribution, the ultimate analysis of biochar, and the organic composition of bio-oil. The maximum yield of bio-oil reached 59.95 wt% under the condition of a weak volatile-char interaction and a mild temperature (400 °C). The gas yield reached 29.76 wt% under a totally opposite condition of a strong interaction and a high pyrolysis temperature (800 °C). The oxygen content of biochar almost decreased to zero when the temperature went up to 800 °C with a weak interaction. The acid contents in bio-oil were reduced from 24.48 to 8.06% when the pyrolysis temperature increased from 400 to 800 °C and the volatile-char interaction was weakened at the same time. The anhydrosugars were undetected when the interaction was strong and pyrolysis temperature was mild, while its highest yield of 13.29% was reached with the continuous weaking of volatile-char interaction and increasing of pyrolysis temperature. The investigation of synergistic effect of volatile-char interaction and temperature provides a research basis for the accurate regulation of pyrolysis product distribution.

Keywords: Pyrolysis; Volatile-char interaction; Temperature; Biomass (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:218:y:2023:i:c:s0960148123012740

DOI: 10.1016/j.renene.2023.119359

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