Title:
Evaluation and Development of Upgrading Methods for Bioliq®-Condensates
Author(s):
Boscagli, C., Raffelt, K., Zevaco, T., Sauer, J., Grunwaldt, J.D.
Document(s):
Paper
Poster
Abstract:
Upgrading of bio-oils for using them as transport fuel or as source for chemicals is a challenging task that has recently attracted a lot of attention. One of the most studied approaches in literature is hydrodeoxygenation, which is also the topic of this work. The light phase of a pyrolysis oil, produced in the bioliq® pilot plant in Karlsruhe, was treated with hydrogen (80 bar, pressure at room temperature) under mild hydrotreating conditions (250°C) in the presence of a catalyst. Different nickel-based catalysts were employed and were compared to Ru/C as benchmark. Nickel on different high surface area supports showed similar catalytic performance with inferior hydrogenation performance compared to Ru/C. Extensive quantitative 1H-NMR analysis was used for observing variations in the concentration of specific molecular functional groups in the products, while the distribution of the main elements (C, H, O) in the different phases was determined by elemental analysis and Karl Fischer titration. 1H-NMR and elemental analysis showed that the produced oil has less oxygen content respect to the original bio-oil. This is not only due to the hydrotreating reaction but also to the repartition of apolar compounds in the oil phase and of more polar ones in the aqueous phase.
Keywords:
pyrolysis oil, upgrading, catalyst
Topic:
Biomass Conversion Technologies for Intermediates, Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Pyrolysis and other biomass liquefaction technologies
Event:
22nd European Biomass Conference and Exhibition
Session:
3CV.2.29
Pages:
1164 - 1170
ISBN:
978-88-89407-52-3
Paper DOI:
10.5071/22ndEUBCE2014-3CV.2.29
Price:
FREE
