Study of ecological charcoal production from agricultural waste Nadia H. D. Djoukouo, Boris M. K. Djousse, Henri G. Djoukeng, Daniel A. M. Egbe, Brillant D. Wembe and Fabrice C. Kouonang E3S Web Conf., 354 (2022) 03007 Published online: 13 July 2022 DOI: 10.1051/e3sconf/202235403007