Life-cycle assessment (lca) study of gasification and pyrolysis to cashew nut shell (cns) approach for energetic.

Authors

DOI:

https://doi.org/10.24979/ambiente.v1i1.950

Keywords:

Gasification, Pyrolysis, Cashew nut Shell

Abstract

Cashew Nut Shell (CNS) is a residual biomass from the cashew nut processing process and the proper use of yhis residue has become increasingly attractive. Thus, this work aims to apply the Life Cycle Assessment (LCA) methodology to understand the environmental impacts of these processes, in pilot units withe a processing capacity of 150 kg/h, aiming at energy generation. A gate-to-gate (system boundaries) LCA was applied. In the GWP (Global Warming Potential)  category, it was found thar burnig coal from pyrolysis emits 114 tCO2-eq annually and gasification only 80.4 tCO2-eq. The burning syngas  in the generator, in both processes was responsible for NOX emissions that  sensitizes  the POCP (Photochemical Ozone Formation Potencial) category. In the PM2.5 (2.5 m Particulate Matter) emission category, pyrolysis coal was once again one of the most responsible for the aggravation of the environmental impacts of this category, emitting a total of 21.9kg of PM2.5-eq, while to gasification process only responsible for issuing 0.25% of this total.

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Author Biographies

  • Lamec Sampaio Freitas, Ceara State University/UECE, Universidade Estadual do Ceará/UECE

    Degree in Industrial Mechatronics from the Federal Institute of Ceará - Rectory and Masters in Energy and Environment from UECE - State University of Ceará

  • Daniel Silveira Serra, Ceara State University/UECE, Universidade Estadual do Ceará/UECE

    Degree in Physics from the Lutheran University of Brazil (ULBRA-2017) and Bachelor of Physiotherapy from the University of Fortaleza (UNIFOR-2006), with a Master's in Physiological Sciences from the State University of Ceará (UECE-2013) and a Doctorate in Natural Resources Biotechnology ( UECE-2018), post graduation in Manual Therapy and Posture (University of Maringá) and in Acupuncture (INCISA). He is currently a Temporary Professor of the Undergraduate Course in Physics (UECE) and a student of the National Post-Doctoral Program (PNPD / CAPES) of the Master in Applied Physical Sciences (UECE). Member of the Faculty of the Academic Master's Course in Applied Physical Sciences (CMACFA-UECE). Member of the editorial board of the journals Clinics in Respiratory Medicines, Theranostics of Respiratory & Skin Diseases, Journal of Molecular Sciences and Journal of Biomedical Science & Applications. Ad hoc reviewer for Ecotoxicology and Environmental, Respiratory Research, Inflammation and Respiratory Physiology & Neurobiology. It participates in the research activities of the Respiratory Biophysics Laboratory (LBR-UECE) and the Associated Innovation and Sustainability Laboratories (LAIS-UECE), with an emphasis on Energy, Environment and Biophysics.

  • Nara Angelica Policarpo, University of Sao Paulo/USP, Universidade de São Paulo/USP

    Graduated in Chemical Engineering from the Federal University of Ceará (2004), Master in Chemical Engineering from the Polytechnic School of the University of São Paulo (2008) and Ph.D. in Science and Petroleum Engineering from the State University of Campinas (2014). She is currently a professor at the University of São Paulo and postdoctoral fellow at the State University of Campinas. He has experience in the field of Energy Engineering, with an emphasis on Petroleum Engineering, working mainly on the following subjects: well engineering, drilling fluids and PVT properties.

  • Mona Lisa Moura de Oliveira, Ceara State University/UECE, Universidade Estadual do Ceará/UECE

    PhD in Mechanical Engineering from Instituto Superior Técnico - Lisbon (2009) in cooperation with the University of Malaga - Spain. She is an Adjunct Professor of the Physics Course and member of the LAIS-Associated Laboratories for Innovation and Sustainability board at the State University of Ceará (UECE). She coordinated the Academic Master's Degree in Applied Physical Sciences at UECE in the period 03 / 2016-03 / 2019. She is a permanent professor at the Postgraduate Program in Natural Sciences at UECE (CAPES-Interdisciplinary Area) and at the Postgraduate Program in Technology and Environmental Management at IFCE-Fortaleza (Area CAPES-Engenharias I). She was president of the UECE Chamber of Innovation (2019-2020). She is currently a member of the scientific committee of the National Combustion Network (RNC). She has experience in the areas of automotive vehicles, biofuels, energies, thermal systems, biomass, combustion, Life Cycle Assessment (LCA) of products and processes, monitoring and control of emissions, environmental catalysis and adsorption. She also participates in the Technical Committee of the Federal Program Route 2030-Line V (Biofuels, Alternative Combustion Propulsion and Vehicle Safety), coordinated by FUNDEP.

References

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Published

2021-08-31

Issue

2021: Dossier: 1st Environment and Energy Symposium (SiMAE)

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Dossiers

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Copyright (c) 2021 Daniel Menezes

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How to Cite

Life-cycle assessment (lca) study of gasification and pyrolysis to cashew nut shell (cns) approach for energetic. Ambiente: Gestão e Desenvolvimento, [S. l.], v. 1, n. 1, 2021. DOI: 10.24979/ambiente.v1i1.950. Disponível em: https://periodicos.uerr.edu.br/index.php/ambiente/article/view/950. Acesso em: 21 feb. 2026.

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