An evaluation of thermal characteristics of bacterium Actinobacillus succinogenes for energy use and circular bioeconomy
Document Type
Article
Publication Date
4-1-2020
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 degrees 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 degrees C pyrolysis are similar to microalgae-derived pyrolysis bio-oils. The combustibility index (S) of AS is 4.07 x 10(-7) which is much higher than that of lignite coal (0.39 x 10(-7)) and bituminous coal (0.18 x 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.
Keywords
Bacterium Actinobacillus succinogenes, Circular bioeconomy, Pyrolysis and torrefaction, Biochar and bio-oil, TGA-FTIR and Py/GC-MS
Divisions
fac_eng,mechanical
Publication Title
Bioresource Technology
Volume
301
Publisher
Elsevier
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND