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Read the Editor`s Pick:
Biogas Collection here!


Biofuel Research Journal

is now indexed by ProQuest! 

We are delighted to announce
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 Celebrating a year of growth

for Biofuel Research Journal!

This year marks a year of growth
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 Winners of the 29th annual

Blue Planet Prize announced!

Prof. David Tilman of the
United States of America and 
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On the Cover

Two-step bubble column-photobioreactor photosynthetic biogas upgrading for biomethane production by utilizing alkaline microalgal medium is a novel biogas upgrading technology to reduce both the cost and energy requirements of conventional physicochemical upgrading technologies. Studies attempting to optimize this technology by simultaneous investigation of the bubble column-photobioreactor setup have experienced considerable variability in results and conclusions. To identify the sources of such variation, in the June 2021 Issue of Biofuel Research Journal, a team of Irish researchers reported the comparative influence of design factors on the performance of CO­2 removal and O2 stripping from the bubble column (DOI: 10.18331/BRJ2021.8.2.2). Seven design factors were analysed using the L16 Taguchi orthogonal array as a screening design of experiment, including superficial gas velocity, liquid to gas flow rate (L/G) ratio, empty bed residence time, liquid inlet pH, liquid inlet alkalinity, temperature, and algal concentration. In particular, the results showed that pH and L/G ratio are the most critical design factors for CO2 removal efficiency with a significant interactive effect. The impact of L/G ratio, algal concentration, and pH (in that order of impact) caused up to a 90% variation in O2 content in biomethane; algal concentration had a diminishing role as the L/G ratio increased, though. This study is the first to use a screening design of experiment to critically analyze the main effects of, and interactions between, different design factors on the bubble column performance for biogas upgrading. The study indicates the possibility of using state-of-the-art bubble column designs and operational strategies for photosynthetic biogas upgrading. Cover art by BiofuelResJ. ©2021.

BRJ publishes high-quality original articles, review articles, case studies, book reviews, short communications, and hypotheses on the fundamentals, applications, processing, and management of biofuel and bioproduct research and technologies:


  • Biofuels & Bioproducts
  • Biodiesel
  • Bioalcohols (bioethanol, biobuthanol, etc.)
  • Biogas (biomethane & biohydrogen)
  • Biomass valorization
  • Algal biofuels & bioproducts
  • Bioprocess (bioreactions, bioreactors, membrane-bioreactors, fermentation, etc.)
  • Biorefineries for biofuels & bioproducts
  • Applied microbiology
  • Combustion
  • Bioresource technologies associated with conversion or production of biofuels & bioproducts

Moreover, novel and integrated biofuel & bioproduct processing and hybrid systems as well as energy audit for biofuel & bioproduct production plants are of interest. The journal also seeks to publish articles with a focus on the application of artificial photosynthesis for biofuels production, carbon footprint analysis, strategies for limiting green house gas (GHG) emissions, life cycle assessment (LCA) and exergy analysis of biofuel & bioproduct production/application pathways, compliance with the international standards (such as PAS 2050:2011 and ISO 14040:2006), technoeconomic analysis of biofuel & bioproduct production/application, impacts of biofuel & bioproduct production/consumption on climate change, futuristic pathways for biofuel & bioproduct production, and promotion of biofuel  & bioproduct applications in the developing world for indigenous development. In addition to the above, BRJ also considers articles with a focus on biofuels & bioproducts in Circular Economy as well as biofuels & bioproducts finance.

Biofuel Research Journal is indexed in Scopus and Web of Science.

BRJ does not charge any submission or publication fees. 

Editor-in-Chief: Meisam Tabatabaei

International Advisory Board: Yusuf Chisti, Ahmad Fauzi Ismail, Seeram Ramakrishna, Solange I. Mussatto

> View Full Editorial Board

Current Issue: Volume 8, Issue 2, Spring 2021, Pages 1351-1416 

4. Comparison of acetone–butanol–ethanol fermentation and ethanol catalytic upgrading as pathways for butanol production: A techno-economic and environmental assessment

Pages 1384-1399


Estefanny Carmona-Garcia; Paula Andrea Marín-Valencia; Juan Camilo Solarte-Toro; Konstantinos Moustakas; Carlos Ariel Cardona-Alzate

Comparison of acetone–butanol–ethanol fermentation and ethanol catalytic upgrading as pathways for butanol production: A techno-economic and environmental assessment

Review Paper

5. A review on the application of nanomaterials in improving microbial fuel cells

Pages 1400-1416


Mehrdad Mashkour; Mostafa Rahimnejad; Fereshteh Raouf; Nahid Navidjouy

A review on the application of nanomaterials in improving microbial fuel cells