Poder calorífico de resíduos florestais canadenses estimado por análise imediata e elementar

Kelly Hofsetz; Josephine Mary Hill

doi:10.17765/2176-9168.2026v19.e14165

Autores

Kelly Hofsetz FCA/UNICAMP https://orcid.org/0000-0001-8329-7011
Josephine Mary Hill Department of Chemical and Petroleum Engineering/Schulich School of Engineering/University of Calgary/ https://orcid.org/0000-0003-2708-565X

DOI:

https://doi.org/10.17765/2176-9168.2026v19.e14165

Palavras-chave:

Bioenergy, Empirical Correlations, Forest Biomass, Moisture Content, Renewable Energy

Resumo

The Canada has one of the cleanest energy matrices in the world, with 80% of electricity coming from non-greenhouse gas emitting sources. Among renewable sources, hydropower is the most important. However, the ample supply of renewable forest biomass could increase the share of biomass-based energy in Canada. Given the importance of Canadian forest residues as a renewable energy source, this study aimed to determine the High Heating Value of this biomass through literature correlations, using proximate and ultimate analysis data, and to verify the impact of moisture content on the Low Heating Value parameter. Using ultimate analysis data, the estimated High Heating Value was 18.80 MJ/kg, which is closer to the experimental values found in the literature for forest residues and woody biomass. The moisture content had a negative impact on the Low Heating Value, which decreased as the water content of the biomass increased, from 17.72 MJ/kg (without water) to 7.60 MJ/kg when the forest residue had 50% moisture content.

Biografia do Autor

Kelly Hofsetz, FCA/UNICAMP

Possui graduação em Engenharia Química pela Universidade de Caxias do Sul (2000), mestrado (2003) e doutorado (2007) em Engenharia de Alimentos pela Universidade Estadual de Campinas. Fez parte do seu doutorado (doutorado-sanduíche) na Faculdade de Engenharia da Universidade do Porto (Portugal) (2004-2005). Possui pós-doutorado pela Faculdade de Engenharia Química da Universidade Estadual de Campinas na área de biocombustíveis (2010) e um pós-doutorado junto à Schulich School of Engineering da Universidade de Calgary (Canadá) (2023-2024). Faz parte do Grupo de Estudos, Pesquisa e Extensão em Plantas Medicinais, Alimentos e Nutrição segundo o Ayurveda. Tem experiência na área de Engenharia de Processos, com ênfase em secagem de materiais orgânicos, atuando principalmente nas características e propriedades físicas (volume, porosidade, estrutura); e em pesquisas sobre a produção, consumo energético e processamento de biomassas com alto teor de umidade. Desde 2010 é professora da Área de Engenharia na Faculdade de Ciências Aplicadas da UNICAMP no Campus de Limeira/SP (Brasil).

Josephine Mary Hill, Department of Chemical and Petroleum Engineering/Schulich School of Engineering/University of Calgary/

Nome

Josephine M. Hill

TÍTULO DO CARGO

Professor de Engenharia Química

INSTITUIÇÃO E LOCALIZAÇÃO

GRAU

(se aplicável)

Ano

ÁREA DE ESTUDO

University of Waterloo, Waterloo, ON, CANADA

Bacharelado

1991

Engenharia Química

University of Waterloo, Waterloo, ON, CANADA

Mestrado

1992

Engenharia Química

University of Wisconsin-Madison, Madison, WI

Doutorado

1999

Engenharia Química

Declaração Pessoal

Os interesses de pesquisa da Dra. Hill incluem o uso da catálise para melhorar a eficiência de diversos processos, incluindo o beneficiamento parcial, a gaseificação e o tratamento por micro-ondas, bem como a conversão de resíduos sólidos, como coque de petróleo e biomassa, em suportes de catalisadores e carvão ativado. A sustentabilidade norteia sua abordagem de pesquisa, e ela recentemente aplicou análises técnico-econômicas para melhor direcionar seu programa de pesquisa.

As contribuições de maior impacto incluem:

Guohui Li, Linjie Hu, Josephine M Hill, Comparison of reducibility and stability of alumina-supported Ni catalysts prepared by impregnation and co-precipitation, Applied Catalysis A: General (2006), 301, 16-24.(338 citations)
Hongpeng He and Josephine M Hill, Carbon Deposition on Ni/YSZ Composites Exposed to Humidified Methane, Applied Catalysis A: General (2007) 317, 284-292.(196 citations)
Mohammad S. Masnadi, Rozita Habibi, Jan Kopyscinski, Josephine M Hill, Xiaotao Bi, C. Jim Lim, Naoko Ellis, John R. Grace, Fuel characterization and co-pyrolysis kinetics of biomass and fossil fuels, Fuel (2014) 117, 1204–1214. (186 citations)
Rozita Habibi, Jan Kopyscinski, Mohammad Masnadi, Jill Lam, John Grace, Charles Mims, and Josephine M Hill, Co-gasification of biomass and non-biomass feedstocks: Synergistic and inhibition effects of switchgrass mixed with sub-bituminous coal and fluid coke during CO₂ gasification, Energy and Fuels (2013) 27 (1), 494-500.(160 citations)

As publicações mais recentes incluem:

Erika Bonatti, Natalia Mariano Cabral, Roshni Sajiv Kumar, and Josephine M. Hill. Bio-Oil Upgrading: Impact of Phenol on Acetic Acid Esterification with Amberlyst-15. Energy & Fuels 2025 39 (22), 10424-10434. DOI: 10.1021/acs.energyfuels.5c00577.
Roshni Sajiv Kumar, Daya Ram Nhuchhen, Josephine M. Hill, All wastes/residues are not equal for hydrogen production via gasification: Impacts of feedstock properties on process parameters. International Journal of Hydrogen Energy, Volume 95, 2024, Pages 144-155,
ISSN 0360-3199, https://doi.org/10.1016/j.ijhydene.2024.11.227.
John H Jacobs, Nancy Chou, Kaylan H McKelvie, Jerry A Commodore, Ruohong Sui, Kevin L Lesage, Kyle G Wynnyk, Ye Xiao, Mark C Biesinger, Josephine M Hill, Robert A Marriott, Screening activated carbons produced from recycled petroleum coke for acid gas separation, Carbon Trends (2023) 10, 100243, doi.org/10.1016/j.cartre.2022.100243.

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