Title:
Characterization of Light and Heavy Phase of Pyrolysis-Oil from Distinct Biomass for Further Upgrading Reactions
Author(s):
Schmitt, C.C., Boscagli, C., Rapp, M., Raffelt, K., Dahmen, N.
Document(s):
Paper
Abstract:
Bio-oil composition can differ depending on the biomass feedstock. Such information is essential if upgrading to a liquid fuel or to platform chemicals is intended. Furthermore, water and inorganic elements have to be taken into account for the catalyst selection. In this work, two bio-oils from wheat straw and beech wood were characterized by different techniques. Both were composed by a light and a heavy phase separately analyzed. The water content of the fractions differed over a wide range between 14.4 and 56.7 wt.% and therefore also the HHV (between 28.5 and 9.2 MJ/Kg). Both phases showed very low content of sulfur (<0.4 wt.%), which can have influence the lifetime of the catalyst. The 1H-NMR integration showed higher values in the regions of alkanes, carboxylic acid or keto-groups, and hetero-(aromatics) for both heavy phases, while light phases showed higher values in the water, O-H exchanging and carbohydrates region. So the heavy phases seem to be a good basis if phenols and its derivatives are expected and the light phases if alcohols are of interest. These results show that the bio-oils composition is essential for upgrading reactions, impacting on the products as well as on the choice of the catalyst.
Keywords:
pyrolysis oil, upgrading, characterization
Topic:
Biomass Conversion Technologies for Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Pyrolysis and other biomass liquefaction technologies
Event:
25th European Biomass Conference and Exhibition
Session:
3AV.3.15
Pages:
1143 - 1147
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-3AV.3.15
Price:
FREE
