Title:
Complete Mass and Enthalpy Balances of Biomass Pyrolysis at High Reactor Temperature
Author(s):
Dufour, A., Girods, P., Masson, E., Rogaume, Y., Zoulalian, A.
Document(s):
Paper
Abstract:
This paper describes mass and enthalpy balances for wood chips pyrolysis experiments performed in a tubular reactor at high reactor wall temperature (700-1000 °C), with quantified solid heating rates (20-40 °C s-1) and gas-phase thermal severity. These pyrolysis conditions are closed to ones occurring in a dual fluidized bed gasifier with a particle thickness of around 5mm. Permanent gases (H2, CO, CH4, CO2, C2H4, C2H6), water, aromatic tar (10 compounds from benzene to phenanthrene and phenols), and char were quantified thanks to a multi-analytical approach (GC/MS, GC/TCD, Karl Fischer, etc.). Mass balances range from 92% (700°C) to 102% (800°C) and enthalpy balances from 86% (700°C) to 101% (800°C). Char yields decrease from 16.5% (700°C) to 13.3% (1000°C). Quantified tars account for less than 4.5% on mass basis and for 9% of the initial enthalpy of wood.
Keywords:
analysis, gasification, pyrolysis, tar, balance
Topic:
Thermochemical conversion - Gasification for synthesis gas production
Subtopic:
Gasification for synthesis gas production
Event:
18th European Biomass Conference and Exhibition
Session:
VP2.2.10
Pages:
847 - 849
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-VP2.2.10
Price:
FREE
