Influence of microorganisms on the variation of raw and oxidatively torrefied microalgal biomass properties

Congyu Zhang, Wei Hsin Chen, Ying Zhang, Shih Hsin Ho

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)


Microalgal torrefaction is conducive to the utilization of biomass waste to achieve carbon neutrality. However, the use of solid biofuels usually faces the challenge of the instability of fuel properties due to long-term storage and transportation. This research investigates the variation and transformation of fuel properties in a humid environment. The main focus is the growth and reproduction of microorganisms on the surface of microalgal biomass/biochar, and therefore, to explore the mechanism of the influence of microorganisms on the performance of fuel and summarize the impact of humidity on the HHV, elemental composition, and hydrophobicity of microalgal solid biofuels. The results indicate that humidity treatment weakened the HHV, elemental C percentage, and contact angle of the microalgal biomass/biochar, leading to poor fuel properties. The HHV and contact angle of microalgal biomass/biochar declined by 3.40–20.60% and 15.21–98.11%, respectively. Humidity benefited the growth of microorganisms, which can consume the organic components in microalgal biomass, especially protein. The main microbial species that decomposed and metabolized the microalgal biomass were Proteobacteria, Bacteroidota, Firmicutes, and Actinobacterita at the phylum level, and Alcaligenes, Pseudomonas, Methylophaga, Halomonas, and Psychrobacter at the genus level. This research uncovers the variations of fuel properties of torrefied biomass affected by microorganisms.

出版狀態Published - 2023 8月 1

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建模與模擬
  • 可再生能源、永續發展與環境
  • 建築與營造
  • 燃料技術
  • 能源工程與電力技術
  • 污染
  • 機械工業
  • 一般能源
  • 管理、監督、政策法律
  • 工業與製造工程
  • 電氣與電子工程


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