期刊
BIOFUEL RESEARCH JOURNAL-BRJ
卷 6, 期 4, 页码 1054-1064出版社
Alpha Creation Enterprise
DOI: 10.18331/BRJ2019.6.4.2
关键词
Bio-oil; Forest biomass; Fast pyrolysis; Fractional condensation; Box-Behnken
资金
- Mexico's Secretariat of Energy
- National Council on Science and Technology (CONACYTSENER)
- Bioresource Engineering Department of McGill University
- Research and Development Institute for the Agri-Environment (IRDA)
The influence of operating conditions on the yield and quality of bio-oil obtained from black spruce wood mixture was studied using an auger reactor. Fast pyrolysis optimization through response surface analysis was carried out with four variables: pyrolysis temperature, solids residence time, nitrogen flow, and temperature of first stage of condensation. The optimal conditions obtained for bio-oil production were 555 degrees C, 129 s, 6.9 L/min, and 120 degrees C, respectively. The product yields were 38.61 wt.% of biochar, 25.39 wt.% of liquid, and 36.52 wt.% of non-condensable gases Two liquid products were produced at the exit of the two condensers, following the concept of fractional condensation. The oily phase yield recovered in the first condenser was 10.59 wt.%, with a 16.86 wt.%, of moisture content. Physical properties of the oily phase were analyzed and compared with the ASTM standard D7544-12. Qualitative identification of chemical compounds was carried out for the oily phase which helped in pyrolysis optimization for the bio-oil production targeted towards its use as fuel in commercial burners. In addition, the oil produced here is one of the lowest in water and solids content, attributable to the unique feature of auger reactors without the need for additional treatments. (C) 2019 BRTeam. All rights reserved.
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