Title:
Oxidative Pyrolysis of Pinewood Sawdust in a Conical Spouted Bed Reactor
Author(s):
Amutio, M., Lopez, G., Artetxe, M., Elordi, G., Olazar, M., Bilbao, J.
Document(s):
Paper
Abstract:
Pinewood oxidative flash pyrolysis has been performed in continuous mode in a pilot plant provided with a conical spouted bed reactor, at 500 ºC. The influence of oxygen addition on the pyrolysis yields and product properties has been studied. Product analysis has been carried out on line by means of chromatographic methods. Gas and water amounts are increased during oxidative pyrolysis, whereas combustion reactions lead to a decrease in char and bio-oil amounts. High liquid yields have been obtained, but operating with higher oxygen amounts, water content in the liquid phase is very high, and therefore its calorific value is lower than in inert pyrolysis. Bio-oil composition is not extensively affected by oxygen addition, with the exception of guaiacols, catechols and saccharides. Char yield decreases but due to its rapid removal from the reaction zone, it is not completely burnt and its calorific value still is high. Besides, when small amounts of oxygen are used, the structural properties of the char are improved.
Keywords:
flash pyrolysis, oxidation, wood, liquid biofuels, conical spouted bed
Topic:
Thermochemical conversion - Pyrolysis for power, CHP, polygeneration and chemicals
Subtopic:
Pyrolysis for power, CHP, polygeneration and chemicals
Event:
18th European Biomass Conference and Exhibition
Session:
VP2.3.24
Pages:
1030 - 1035
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-VP2.3.24
Price:
FREE
