Biomass pyrolysis kinetics and impact of volatile products for slagging

DOI

10.2991/ic3me-15.2015.30How to use a DOI?

Keywords

biomass; TG-DTG-FTIR; Flynn-Wall-Ozawa method; the maximum weight loss rate; characteristic peaks; slagging.

Abstract

Basing on TG-DTG-FTIR technology, researching about kinetic activation energy E about eucalyptus and absorption bands and characteristic peaks of volatile product under the heating rate 10 min-1, 30 min-1, 60 min-1respectively. The experimental results show that eucalyptus pyrolysis process can be divided into 3 stages: moisture volatilizes stage (0-265 ), volatility analysis phase (265-605 ) and carbonization stage (605-700 ). And with the increasing of the heating rate, the maximum weight loss rate increased. the initial pyrolysis temperature (Tin), the termination of pyrolysis temperature (Th) and the maximum peak temperature (Tmax) of the pyrolysis curves slightly moved to the high temperature areas. Flynn-Wall-Ozawa integral method can calculate activation energy E value of eucalyptus under the conversion rate [0.2, 0.8] even through the reaction mechanism is an unknown function. Its value is between 33.25 and 60.12kJ mol-1, which has little difference from C-R method for solving activation energy E value of eucalyptus. Finally, the pyrolysisproduct was analyzed by using the FTIR spectra. What’s more, it can verify its corresponding TG-DTG curve.The experiment aims to study the biomass which cause material agglomerate, furnace coke, fouling and equipment corrosion in the process of burning, so that it can provide theoretical support.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Guanzhong Sun
AU  - Shanshan He
AU  - Hongliang Zhang
AU  - Wei Li
PY  - 2015/08
DA  - 2015/08
TI  - Biomass pyrolysis kinetics and impact of volatile products for slagging
BT  - Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering
PB  - Atlantis Press
SP  - 156
EP  - 161
SN  - 2352-5401
UR  - https://doi.org/10.2991/ic3me-15.2015.30
DO  - 10.2991/ic3me-15.2015.30
ID  - Sun2015/08
ER  -