Title:
A Comparison of Biochars Produced by Two Slow Pyrolysis Methods
Author(s):
Dickinson, D., Kiep, K.A., Busse, J., Ronsse, F., Prins, W.
Document(s):
Paper
Poster
Abstract:
Biochars produced by two different slow pyrolysis methods across a range of pyrolysis temperatures using the same wood-pellet feedstock were characterized by CHN elemental and proximate analysis, oxygen bomb calorimetry, and N2 gas adsorption. Higher pyrolysis temperatures resulted in biochar with higher carbon content, ash content, HHV, and BET surface area, while hydrogen content and volatile matter content were decreased. These properties were also all observed to be materially related. Significantly, the trends in properties were found to be unaffected by pyrolysis technology, indicating that the biochars were produced through identical reaction mechanisms in both processes and thus that it is possible to produce identical biochars with different pyrolysis techniques. Further, our results suggest the properties of any biochar produced in slow pyrolysis may eventually be definable solely by the feedstock used and a method-invariant proxy which reduces pyrolysis process conditions into a single universal parameter or measure.
Keywords:
pyrolysis, char, biochar
Topic:
R&D on Processes for Solid, Liquid and Gaseous Fuels from Biomass
Subtopic:
Advanced solid biofuels
Event:
21st European Biomass Conference and Exhibition
Session:
3CV.1.28
Pages:
1469 - 1472
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-3CV.1.28
Price:
FREE
