Journal
BIORESOURCE TECHNOLOGY
Volume 129, Issue -, Pages 335-342Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.11.069
Keywords
Miscanthus x giganteus; Senescence; Nitrogen remobilisation; Fast pyrolysis; Bio-oil stability
Funding
- SUPERGEN Bioenergy II Consortium under Engineering and Physical Sciences Research Council, UK (EPSRC) [EP/E039995/1]
- Engineering and Physical Sciences Research Council - EPSRC [GR/S28204]
- EPSRC DTA award
- Biotechnology and Biological Sciences Research Council (BBSRC) Institute Strategic Programme grant [BBSEG00003134]
- Biotechnology and Biological Sciences Research Council [BBS/E/W/10963A01B, BBS/E/W/00003134A] Funding Source: researchfish
- BBSRC [BBS/E/W/10963A01B, BBS/E/W/00003134A] Funding Source: UKRI
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In this study the impact of senescence and harvest time in Miscanthus on the quality of fast pyrolysis liquid (bio-oil) was investigated. Bio-oil was produced using a 1 kg h(-1) fast pyrolysis reactor to obtain a quantity of bio-oil comparable with existing industrial reactors. Bio-oil stability was measured using viscosity, water content, pH and heating value changes under specific conditions. Plant developmental characteristics were significantly different (P <= 0.05) between all harvest points. The stage of crop senescence was correlated with nutrient remobilisation (N, P, K; r(2) = 0.9043, r(2) = 0.9920, r(2) = 0.9977 respectively) and affected bio-oil quality. Harvest time and senescence impacted bio-oil quality and stability. For fast pyrolysis processing of Miscanthus, the harvest time of Miscanthus can be extended to cover a wider harvest window whilst still maintaining bio-oil quality but this may impact mineral depletion in, and long term sustainability of, the crop unless these minerals can be recycled. (C) 2012 Elsevier Ltd. All rights reserved.
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