Title:
Behaviour of Olivine and γ-Alumina as Primary Catalyst in Steam Gasification of Pinewood Sawdust in a Conical Spouted Bed Reactor
Author(s):
Erkiaga, A., Alvarez, J., Lopez, G., Amutio, M., Barbarias, I., Artetxe, M., Olazar, M.
Document(s):
Paper
Poster
Abstract:
Olivine and .-alumina have been used as primary catalysts for tar elimination in the continuous steam gasification of pine wood sawdust in a bench-scale plant provided with a conical spouted bed reactor. A comparison of the performance of each catalyst with that observed for a bed made up of inert silica sand shows that both catalysts have a significant activity for tar cracking/reforming, given that the amount of tar obtained by operating with beds of inert sand is reduced by 79 % and 84 % when olivine and .-alumina are used, respectively. The tar cracking reduces selectively the content of light and heavy PAHs, giving way to an increase in the concentration of light aromatics. Furthermore, both catalysts cause a positive effect on the gas composition by slightly enhancing the waster-gas shift and reforming reactions.
Keywords:
gasification, steam, olivine, spouted bed, tar cracking, y-alumina
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Gasification for synthesis gas production
Event:
21st European Biomass Conference and Exhibition
Session:
2CV.3.41
Pages:
854 - 857
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2CV.3.41
Price:
FREE
