Title:
Continuous Torrefaction of Virginia Mallow under Carbon Dioxide Atmosphere in a Screw Conveyor Reactor
Author(s):
Poskart, A., Szwaja, S., Zajemska, M., Musial, D., Magdziarz, A., Kurtyka, M.
Document(s):
Paper
Abstract:
The vast majority of the works presented in the literature concerns the torrefaction of biomass in batch processes. However, continuous reactors and processes play a more important role in industrial applications. Thus, in this work the results of investigation on continuous torrefaction in a screw conveyor reactor (auger) are presented. The scope of research included the influence of torrefaction under CO2 (from 0 to 30%) enriching atmosphere at the temperature ranging from 250 to 350°C on the energy properties of the Virginia Mallow. The torrefied products were characterized in terms of their elemental composition (C, H, N), higher heating value (HHV) and lower heating value (LHV), content of moisture, ash, and volatile fraction. The results of the investigations have shown that both the heating value and carbon, and fixed carbon contents of torrefied biomass increased while the moisture content significantly decreased in comparison to the raw material. The rise in carbon content was from 45.9% to 58.6% and in the HHV from 17.2 MJ/kg to 23.6 MJ/kg. This investigation suggested that continuous torrefaction of Virginia Mallow allows obtaining a good quality feedstock for energy use.
Keywords:
biomass, continuous torrefaction, screw conveyor reactor, Virginia Mallow
Topic:
Biomass Conversion Technologies for Fuels, Chemicals and Materials
Subtopic:
Production of thermally treated solid biofuels
Event:
26th European Biomass Conference and Exhibition
Session:
3DV.6.14
Pages:
1229 - 1235
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-3DV.6.14
Price:
FREE
