Experimental study of torrefied pine as a gasification fuel using a bubbling fluidized bed gasifier

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A. Kulkarni, R. Baker, N. Abdoulmomine, S. Adhikari, and S. Bhavani, “Experimental study of torrefied pine as a gasification fuel using a bubbling fluidized bed gasifier,” Renewable Energy, vol. 93, no. August, pp. 460 – 468, Mar. 2016.

Type Journal Article
Author Avanti Kulkarni
Author Ryan Baker
Author Nourredine Abdoulmomine
Author Sushil Adhikari
Author Sushil Bhavani
URL http://dx.doi.org/10.1016/j.renene.2016.03.006
Volume 93
Issue August
Pages 460 - 468
Publication Renewable Energy
Date March 14 2016
DOI 10.1016/j.renene.2016.03.006

Abstract Torrefied biomass has higher C/O ratio, resulting in improved heating value and reduced hygroscopic nature of the biomass, thus enabling longer storage times. In the southeastern United States, pine is has been identified as a potential feedstock for energy production. The objective of this study was to understand the performance of torrefied pine as a gasification fuel in a bench-scale bubbling fluidized bed gasifier. The gasification of torrefied pine was carried out at 790, 935 and 1000 °C and three equivalence ratios (ERs: 0.20, 0.25 and 0.30). The effect of process variables were studied based on i) products yield, ii) syngas composition iii) syngas energy content, and iv) contaminants. The mean concentration of CO increased with an increase in temperature, but was not statistically significant. On the other hand, H2 concentration increased whereas CH4 concentration decreased significantly with an increase in temperature from 790 to 935 °C. Further, with an increase in ER from 0.20 to 0.30, only CO2 concentrations increased in the syngas. Results from torrefied pine were compared with raw pine gasification, and it was observed that torrefied pine gasification led to much higher char yield (more than twice) than pine; however, it produced less than half as much tar.


  • Biomass
  • Contamination
  • Syngas
  • Tar
  • Torrefaction

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