A critical review on global trends in biogas scenario with its up-gradation techniques for fuel cell and future perspectives

Devaraj Thiruselvi, Ponnusamy Senthil Kumar, Madhava Anil Kumar, Chyi How Lay, Salma Aathika, Yuvarani Mani, D. Jagadiswary, Anuradha Dhanasekaran, Palaniyandi Shanmugam, Subramanian Sivanesan, Pau Loke Show

Research output: Contribution to journalArticlepeer-review

63 Scopus citations


Renewable biogas production technology is an excellent method for eradication of greenhouse gas emission and thereby reducing global warming. This review discusses extensively on global biomass potential, energy need and method of satisfying the energy demand through sustainable techniques. One of the best alternative technological developments for the conversion of waste into useful energy is anaerobic digestion to produce biogas. It is recognized as one among leading green energy to manage the environmental and meet the current energy tasks to tackle globally. Generally, biogas can be utilized for cooking, heat and electricity generation. In order to extend the scope of application, traces of carbon dioxide, hydrogen sulphide has to be removed by several upgrading technologies to produce high purity methane (90%). This study discusses on biogas up-gradation using physical and chemical absorption, membrane separation, cryogenic separation, hybrid technology etc. Among the various up-gradation techniques, hybrid technology yields methane purity of 97%. In addition, this work reviews about benefits and problems in anaerobic integrated Solid Oxide Fuel Cell (SOFC) with latest real-world achievement in SOFC. Several SOFC systems with dynamic model development were reviewed based on efficiency of power generation. SOFC generates 45% more electricity than generator with heat engine. This review extends the scope for further research in biogas upgradation and global warming mitigation potential with carbon credits.

Original languageBritish English
Pages (from-to)16734-16750
Number of pages17
JournalInternational Journal of Hydrogen Energy
Issue number31
StatePublished - 5 May 2021


  • Anaerobic digestion
  • Biogas
  • Biogas upgradation
  • Fuel cell
  • Renewable energy


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