Pirólise catalítica da casca de café: estudo preliminar do rendimento líquido em diferentes condições operacionais

Authors

DOI:

https://doi.org/10.21712/lajer.2025.v12.n3.p188-194

Keywords:

desoxigenação catalítica, biomassa lignocelulósica, conversão termoquimica, bioenergia sustentável, melhoramento catalítico

Abstract

Resíduos agroindustriais lignocelulósicos, como a casca de café, apresentam potencial para a produção de biocombustíveis via pirólise catalítica. Este estudo teve como objetivo caracterizar essa biomassa e avaliar o rendimento líquido da pirólise catalítica in situ em reator de leito fixo. A casca de café foi submetida a análises físico-químicas e termogravimétricas. Os ensaios foram realizados em reator tubular sob atmosfera inerte de nitrogênio, com duas concentrações de catalisador (3% e 17%) e duas temperaturas (480°C e 640°C). A biomassa apresentou baixo teor de umidade e elevado teor de voláteis, indicando bom potencial energético. A maior produção de líquido (49%) foi obtida a 480°C com 17% de catalisador, enquanto a 640°C, a concentração de 3% resultou em rendimento superior (45%), provavelmente devido à intensificação de reações secundárias em temperaturas mais elevadas.

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Author Biographies

  • Talita Alves de Carvalho Tones, UFES CEUNES

    Environmental and Sanitary Engineer, graduated from the University Center of Caratinga (2013). Holds postgraduate degrees in Occupational Safety Engineering, Environmental Management from the Federal Institute of Espírito Santo (IFES), and Sanitation from Faveni. Currently pursuing a Master’s degree in Energy at the Federal University of Espírito Santo (UFES).

  • Andressa Alves da Silva, UFES CEUNES

    Estudante (Departamento de Engenharia e Tecnologia)

  • Érica Victor de Faria, UFES CEUNES

    Doutora em Engenharia Química pela Universidade Federal de Uberlândia (2022), atuando na área de sistemas particulados. Possui graduação em Engenharia Química pela Universidade Federal do Triângulo Mineiro (2015) e mestrado em Engenharia Química pela Universidade Federal de Uberlândia (2017). Tem experiência na área de Engenharia Química, com ênfase em Fenômenos de Transporte, Sistemas Particulados, Operações de Separação e Mistura, Pesquisa Operacional, Programação, Modelagem e Simulação, CFD. 

  • Thiago Padovani Xavier, UFES CEUNES
    Holds a PhD in Chemical Engineering from the Federal University of Uberlândia (2016), a Master's degree in Chemical Engineering from the Federal University of Uberlândia (2011), and a Bachelor's degree in Chemistry from the Federal University of Uberlândia (2003). Currently, he is an Adjunct Professor in the Department of Engineering and Technology at the Federal University of Espírito Santo, a position he has held since 2012, working on engineering-related topics concerning technological research and personnel training in the area of ​​management.
  • Vinícius Barroso Soares, UFES CEUNES

    Holds a degree in Chemical Engineering from the Federal Rural University of Rio de Janeiro (UFRRJ/2008), a master's degree in Chemical Engineering from the Federal Rural University of Rio de Janeiro (UFRRJ/2010), and a doctorate in Chemical Engineering from the Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering (COPPE/2016). Currently, he is a professor in the Department of Engineering and Technology at the Federal University of Espírito Santo (UFES/present). He has professional experience in industry in the area of ​​process modeling, simulation, control, optimization, and safety, with an emphasis on risk management.

  • Taísa Shimosakai de Lira, UFES CEUNES

    She holds a Bachelor's degree in Chemical Engineering from the Federal University of Uberlândia (2003), a Master's degree in Chemical Engineering from the Federal University of Uberlândia (2005), and a Doctorate in Chemical Engineering from the Federal University of Uberlândia (2009). She is an Adjunct Professor in the Department of Engineering and Technology and a Permanent Professor in the Postgraduate Program in Energy, both at the Federal University of Espírito Santo. She has experience in the field of Chemical Engineering, with an emphasis on Modeling, Simulation and Optimization of Processes, mainly working with biomass pyrolysis. She is a Capixaba Researcher Fellow (FAPES Notice No. 06/2021) in the Pq - Research Productivity modality.

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Published

11/29/2025

Issue

Vol. 12 No. 3 (2025): 1 EIE

Section

Eficiência Energética

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How to Cite

Alves de Carvalho Tones, T. (2025) “Pirólise catalítica da casca de café: estudo preliminar do rendimento líquido em diferentes condições operacionais”, Latin American Journal of Energy Research, 12(3), pp. 188–194. doi:10.21712/lajer.2025.v12.n3.p188-194.

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