Non-oxidative and oxidative torrefaction characterization and SEM observations of fibrous and ligneous biomass

Wei Hsin Chen, Ke Miao Lu, Wen Jhy Lee, Shih Hsien Liu, Ta Chang Lin

研究成果: Article

66 引文 斯高帕斯(Scopus)


Oxidative torrefaction is a method to reduce the operating cost of upgrading biomass. To understand the potential of oxidative torrefaction and its impact on the internal structure of biomass, non-oxidative and oxidative torrefaction of two fibrous biomass materials (oil palm fiber and coconut fiber) and two ligneous ones (eucalyptus and Cryptomeria japonica) at 300°C for 1h are studied and compared with each other. Scanning electron microscope (SEM) observations are also performed to explore the impact of torrefaction atmosphere on the lignocellulosic structure of biomass. The results indicate that the fibrous biomass is more sensitive to O2 concentration than the ligneous biomass. In oxidative torrefaction, an increase in O2 concentration decreases the solid yield. The energy yield is linearly proportional to the solid yield, which is opposite to the behavior of non-oxidative torrefaction. The performance of non-oxidative torrefaction is better than that of oxidative torrefaction. As a whole, ligneous biomass can be torrefied in oxidative environments at lower O2 concentrations, whereas fibrous biomass is more suitable for non-oxidative torrefaction.

頁(從 - 到)104-113
期刊Applied Energy
出版狀態Published - 2014 二月


All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law