Floresta e Ambiente
Floresta e Ambiente
Original Article Wood Science and Technology

Impact of Wood Moisture in Charcoal Production and Quality

Wagner Davel Canal; Ana Márcia Macedo Carvalho; Clarissa Gusmão Figueiró; Angélica de Cássia Oliveira Carneiro; Lucas de Freitas Fialho; Danilo Barros Donato

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Abstract: The charcoal production when performed in woods with high moisture content negatively impacts the pyrolysis and causes an increase of greenhouse emissions. The aim of this study was to investigate the effects of moisture on the production and quality of charcoal for the pig iron industry. The slow pyrolysis of Eucalyptus sp. was carried out in four different wood moistures, 0, 20, 40 and 60% (dry base). The charcoal and gas yield decreased according to the increase of wood moisture. On the other hand, the bio-oil yield and charcoal friability increased along with the moisture content. The proximate analysis, bulk density and higher heating value of the charcoal were not influenced by the moisture content. The use of wood with moisture content below 20% in the production of charcoal is an alternative to improve productivity, contributing for the economic sustanainability of this sector.


pyrolysis, friability, yield


American Society for Testing and Materials - ASTM. ASTM D D3175: standard test method for volatile matter in the analysis sample of Coal and Coke. West Conshohocken: ASTM; 2009.

American Society for Testing and Materials - ASTM. ASTM D3174: standard test method for ash in the analysis sample of Coal and Coke from coal. West Conshohocken: ASTM; 2013.

Arruda TPM, Pimenta AS, Vital BR, Lucia RMD, Acosta FC. Avaliação de duas rotinas de carbonização em fornos retangulares. Revista Árvore 2011; 35(4): 949-955. 10.1590/S0100-67622011000500020

Canal WD, Carvalho AMML, Carneiro ACO, Pereira BLC, Donato DB. Efeito do teor de umidade da madeira na emissão de gases de efeito estufa no processo de carbonização. Scientia Florestalis 2016; 44(112): 831-840. 10.18671/scifor.v44n112.05

Di Blasi C, Galgano A, Branca C, Clemente M. Analysis of the interactions between moisture evaporation and exothermic pyrolysis of Hazelnut Shells. Energy & Fuel 2016; 30(10): 7878-7886. 10.1021/acs.energyfuels.6b00856

Di Blasi C, Gonzalez Hernandez E, Santoro A. Radiative pyrolysis of single moist wood particles. Industrial & Engineering Chemistry Research 2000; 39(4): 873-882. 10.1021/ie990720i

Empresa de Pesquisa Energética - EPE. Balanço energético nacional 2015: ano base 2014. Rio de Janeiro: EPE; 2015.

Gray MR, Corcoran WH, Gavalas GR. Pyrolysis of a wood-derived material: effects of moisture and ash content. Industrial & Engineering Chemistry Process Design and Development 1985; 24(3): 646-651. 10.1021/i200030a020

Indústria Brasileira de Árvores - IBA. Anuário estatístico 2017: ano base 2016. Brasília, DF: IBA; 2017.

Koppejan J, Sokhansanj S, Melin S, Madrali S. IEA bioenergy task 32 report: final report: status overview of torrefaction technologies. Paris: IEA; 2012.

Missio LA, Mattos BD, Gatto DA, Lima EA. Thermal analysis of charcoal from fast-growing eucalypt wood: influence of raw material moisture content. Journal of Wood Chemistry and Technology 2013; 34(3): 191-201. 10.1080/02773813.2013.852588

Pereira BLC, Carneiro ACO, Carvalho AMML, Colodette JL, Oliveira AC, Fontes MPF. Influence of chemical composition of eucalyptus wood on gravimetric yield and charcoal properties. Bioresources 2013; 8(3): 4574-4592. 10.15376/biores.8.3.4574-4592

Pereira BLC, Oliveira AC, Carvalho AML, Carneiro ACO, Santos LCS, Vital BR. Quality of wood and charcoal from Eucalyptus clones for ironmaster use. International Journal of Forestry Research 2012; 2012: 523025. 10.1155/2012/523025

Saidur R, Abdelaziz EA, Demirbas A, Hossain MS, Mekhilef S. A review on biomass as a fuel for boilers. Renewable and Sustainable Energy Reviews 2011; 15(5): 2262-2289. 10.1016/j.rser.2011.02.015

Shen DK, Gu S, Bridgwater AV. The thermal performance of the polysaccharides extracted from hardwood: cellulose and hemicellulose. Carbohydrate Polymers 2010; 82(1): 39-45. 10.1016/j.carbpol.2010.04.018

Silva CMS, Carneiro ACO, Vital BR, Figueiró CG, Fialho LF, Magalhães MA et al. Biomass torrefaction for energy purposes: definitions and an overview of challenges and opportunities in Brazil. Renewable and Sustainable Energy Reviews 2018; 82(Pt.3): 2426-2432. 10.1016/j.rser.2017.08.095

Sosa A, Acuna M, McDonnell K, Devlin G. Managing the moisture content of wood biomass for the optimisation of Ireland’s transport supply strategy to bioenergy markets and competing industries. Energy 2015; 86: 354-68. 10.1016/j.energy.2015.04.032

Souza ND, Amodei JB, Xavier CN, Dias AF Jr, Carvalho AM. Estudo de caso de uma planta de carbonização: avaliação de características e qualidade do carvão vegetal visando uso siderúrgico. Floresta e Ambiente 2016; 23(2): 270-277. 10.1590/2179-8087.106114

R Core Team. R: a language and environment for statistical computing [Internet]. Vienna: The R Foundation for Statistical Computing; 2017 [cited 2018 Feb. 24]. Available from: Available from: http://www.R-project.org/

Ucar S, Ozkan AR. Characterization of products from the pyrolysis of rapeseed oil cake. Bioresource Technology 2008; 99(18): 8771-8776. 10.1016/j.biortech.2008.04.040

Van der Stelt MJC, Gerhauser H, Kiel JHA, Ptasinski KJ. Biomass upgrading by torrefaction for the production of biofuels: a review. Biomass and Bioenergy 2011; 35(9): 3748-3762. 10.1016/j.biombioe.2011.06.023

Vital BR, Carneiro ACO, Pereira BLC. Qualidade da madeira para fins energéticos. In: Santos F, Colodette J, Queiroz JH, editors. Bioenergia & biorrefinaria: cana-de-açúcar & espécies florestais. Viçosa: UFV; 2013. p. 321-354.

Welfle A. Balancing growing global bioenergy resource demands: Brazil’s biomass potential and the availability of resource for trade. Biomass and Bioenergy 2017; 105: 83-95. 10.1016/j.biombioe.2017.06.011

Yang H, Yan R, Chen H, Lee DH, Zheng C. Characteristics of hemicellulose, cellulose and lignin pyrolysis. Fuel 2007; 86(12-13): 1781-1788. 10.1016/j.fuel.2006.12.013

Zainuddin MF, Rosnah S, Noriznan MM, Dahlan I. Effect of moisture content on physical properties of animal feed pellets from pineapple plant waste. Agriculture and Agricultural Science Procedia 2014; 2: 224-230. 10.1016/j.aaspro.2014.11.032

Zanuncio AJV, Lima JT, Monteiro TC, Trugilho PF, Lima FS. Secagem ao ar livre da madeira para produção de carvão vegetal. Floresta e Ambiente 2014; 21(3): 401-408. 10.1590/2179-8087.028713

Zeng K, Gauthier D, Li R, Flamant G. Combined effects of initial water content and heating parameters on solar pyrolysis of beech wood. Energy 2017; 125: 552-561. 10.1016/j.energy.2017.02.173

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