Ramos, Diego Correa creator Carneiro, Angélica de Cássia Oliveira creator Tangstad, Merete creator Saadieh, Raghed creator Pereira, Bárbara Luísa Corradi creator text periodical abstract or summary bl. continuing eng ABSTRACT The objectives of the present work were to determine the properties of wood and charcoal from Eucalyptus clones and assess impacts of charcoal features on the CO2 gasification reactivity and to compare with coke reactivity. Gasification reactivity was performed using charcoal particles in a furnace setup at 820 °C, under CO2 atmosphere. The results show that there is wood variability among evaluated clones and strong correlations between wood and charcoal properties. All charcoals had higher reactivity in comparison to coke. The decrease in porosity and increase in apparent density in Eucalyptus wood led to a slight decrease of CO2 gasification reactivity. In addition, strong positive correlation between charcoal reactivity and potassium concentration (K) was found. Keywords: CO2 gasification, reductant materials, biocarbon. Publicação on-line; 30 ref.; 3 tables; 6 illus.; Summary (En) CARVÃO GASEIFICAÇÃO CARBONO Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 2025-0454 1415-0980 / ISSN 2179-8087 0nline BR2026001330 v. 26(special number n.2 ) p. 1-8; (2019) https://www.scielo.br/j/floram/a/tTNvcXSdHVp3RMFH4gmW5Dx/?format=pdf&lang=en https://www.scielo.br/j/floram/a/tTNvcXSdHVp3RMFH4gmW5Dx/?format=pdf&lang=en BR-BrBNA 260506 20260506112111.0 eng