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Adnan AI, Ong MY, Nomanbhay S, et al. Technologies for Biogas Upgrading to Biomethane: A Review. Bioengineering (Basel). 2019;6(4)doi: 10.3390/bioengineering6040092.
Adnan, A. I., Ong, M. Y., Nomanbhay, S., Chew, K. W., & Show, P. L. (2019). Technologies for Biogas Upgrading to Biomethane: A Review. Bioengineering (Basel, Switzerland), 6(4), . https://doi.org/10.3390/bioengineering6040092
Adnan, Amir Izzuddin, et al. "Technologies for Biogas Upgrading to Biomethane: A Review." Bioengineering (Basel, Switzerland) vol. 6,4 (2019). doi: https://doi.org/10.3390/bioengineering6040092
Adnan AI, Ong MY, Nomanbhay S, Chew KW, Show PL. Technologies for Biogas Upgrading to Biomethane: A Review. Bioengineering (Basel). 2019 Oct 02;6(4). doi: 10.3390/bioengineering6040092. PMID: 31581659; PMCID: PMC6956267.
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Bioengineering (Basel). 2019 Oct 02;6(4). doi: 10.3390/bioengineering6040092.

Technologies for Biogas Upgrading to Biomethane: A Review.

Bioengineering (Basel, Switzerland)

Amir Izzuddin Adnan, Mei Yin Ong, Saifuddin Nomanbhay, Kit Wayne Chew, Pau Loke Show

Affiliations

  1. Institute of Sustainable Energy, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. [email protected].
  2. Institute of Sustainable Energy, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. [email protected].
  3. Institute of Sustainable Energy, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. [email protected].
  4. Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia. [email protected].
  5. Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia. [email protected].

PMID: 31581659 PMCID: PMC6956267 DOI: 10.3390/bioengineering6040092

Abstract

The environmental impacts and high long-term costs of poor waste disposal have pushed the industry to realize the potential of turning this problem into an economic and sustainable initiative. Anaerobic digestion and the production of biogas can provide an efficient means of meeting several objectives concerning energy, environmental, and waste management policy. Biogas contains methane (60%) and carbon dioxide (40%) as its principal constituent. Excluding methane, other gasses contained in biogas are considered as contaminants. Removal of these impurities, especially carbon dioxide, will increase the biogas quality for further use. Integrating biological processes into the bio-refinery that effectively consume carbon dioxide will become increasingly important. Such process integration could significantly improve the sustainability of the overall bio-refinery process. The biogas upgrading by utilization of carbon dioxide rather than removal of it is a suitable strategy in this direction. The present work is a critical review that summarizes state-of-the-art technologies for biogas upgrading with particular attention to the emerging biological methanation processes. It also discusses the future perspectives for overcoming the challenges associated with upgradation. While biogas offers a good substitution for fossil fuels, it still not a perfect solution for global greenhouse gas emissions and further research still needs to be conducted.

Keywords: CO2 utilization; anaerobic digestion; bio-succinic acid; biogas upgrading; biomethane; feasibility assessment

Conflict of interest statement

The authors declare that they have no competing interests.

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