An evaluation of thermal characteristics of bacterium Actinobacillus succinogenes for energy use and circular bioeconomy

Lin BJ 1 , Chen WH 2 , Lin YY 1 , Chang JS 3 , Farooq A 1 , Singh Y 4 Show all authors , Ong HC 5 , Show PL 6

Affiliations 

  • 1 Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan
  • 2 Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan; Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 701, Taiwan. Electronic address: weihsinchen@gmail.com
  • 3 Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung 407, Taiwan; Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 701, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan
  • 4 Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Department of Mechanical Engineering, Graphic Era University, Dehradun, Uttarakhand, India
  • 5 Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
  • 6 Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor Darul Ehsan, Malaysia
Bioresour Technol, 2020 Apr;301:122774.
PMID: 31954973 DOI: 10.1016/j.biortech.2020.122774

Abstract

The thermal characteristics of Actinobacillus succinogenes (AS) from pyrolysis, torrefaction, and combustion are analyzed to evaluate the potential of this biomass as a renewable fuel. AS pyrolysis can be classified into four stages, and its main decomposition zone is at 200-500 °C. The solid yield of AS after 60 min torrefaction is over 60 wt%, and the torrefaction severity index map indicates that a high torrefaction temperature with a short duration has a more profound influence on its decomposition. The Py-GC/MS analysis of AS suggests that the volatile products from 500 °C pyrolysis are similar to microalgae-derived pyrolysis bio-oils. The combustibility index (S) of AS is 4.07 × 10-7 which is much higher than that of lignite coal (0.39 × 10-7) and bituminous coal (0.18 × 10-7), and close to those of biochar and bio-oil. The obtained results are conducive to the development of microorganisms as fuel to achieve a circular bioeconomy.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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