Methods improvements for determining the composition of biomethane

Authors

  • Isabela de Melo Mostranges Alves Inmetro
  • Cristiane R. Augusto C. Iglesias
  • Viviane F. Mello
  • Claudia C. Ribeiro
  • Andreia L. Fioravante
  • Vanderléa de Souza Instituto Nacional de Metrologia Qualidade e Tecnologia

DOI:

https://doi.org/10.21014/actaimeko.v15i1.1989

Keywords:

biogas, biomethane, gas chromatography, method validation

Abstract

With the energy transition, many studies have been carried out on biogas, as it is considered a renewable energy source. For its use as fuel, a purification process is necessary, becoming biomethane, with a higher concentration of methane and calorific value. The quality control of biomethane from landfills intended for vehicle use is established by ANP Resolution No. 886 of 2022. To comply with this Resolution, it is necessary to correctly measure the composition of the components using high-precision analytical methods. Therefore, the analytical methods were adapted so that they can determine the composition of the major components present in biomethane. This work sought to adapt and validate analytical methods to subsequently evaluate the composition of a biomethane sample produced by a gas industry containing methane, dioxide and oxygen and verify whether the results are in accordance with the parameters reported in the resolution. Metrological tools were used to quantify biomethane, such as certified reference materials, calibrated instruments and a validated method. Through the results it was possible to conclude that the methods are suitable for their intended use and that the methane composition does not comply with the limit established in the resolution.

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Published

2026-03-10

Issue

Vol. 15 No. 1 (2026)

Section

Research Papers

License

Copyright (c) 2026 Isabela de Melo Mostranges Alves, Cristiane R. Augusto C. Iglesias, Viviane F. Mello, Claudia C. Ribeiro, Andreia L. Fioravante , Vanderléa de Souza

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