Title:
Pyrolysis and Supercritical Water Conversion of Pine Pinus Sylvestris Ingredients
Author(s):
Luik, H., Luik, L., Palu, V., Tamvelius, H.
Document(s):
Paper
Abstract:
Wood, bark, needles and cones as pine Pinus sylvestris lignocellulosic ingredients rich in oxygen were submitted to the thermochemical conversion using Fischer assay pyrolysis (FAP) and supercritical water conversion (SWC) methods to compare the yield and composition of the liquid, gaseous and solid products. The liquid product obtained as condensable volatiles in FAP and solvent solubles in an autoclave resulting from SWC. The shares of oil soluble in water, benzene and acetone were determined. FAP oils can be characterized as hydrophilic while in SWC oils the share of compounds soluble in benzene and acetone surpasses that of water solubles. Resulting from thermochemical conversion majority of oxygen in initial biomass samples was transformed into liquid composition as oxygeneous oil and water the latters unlike typical flash pyrolysis bio-oil forming two distinguishable phases. Water was easily separated and the benzene soluble oil portion was separated into groups of compounds by using thin-layer chromatographic (TLC) analysis. Various oxygen compounds prevail over hydrocarbons in oil composition. The maximum yield of solvent soluble oil amounting to 33.70% was obtained in SWC of needles. FAP yields less oil and more solid residue compared with SWP.
Keywords:
pyrolysis, conversion, yield, lignocellulosic sources, composition
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Pyrolysis and other biomass liquefaction technologies
Event:
21st European Biomass Conference and Exhibition
Session:
2CV.4.2
Pages:
914 - 917
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2CV.4.2
Price:
FREE
