Miscanthus as a feedstock for fast-pyrolysis: does agronomic treatment affect quality?

Autor: Hodgson EM; Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion SY23 3EB, UK., Fahmi R, Yates N, Barraclough T, Shield I, Allison G, Bridgwater AV, Donnison IS
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2010 Aug; Vol. 101 (15), pp. 6185-91. Date of Electronic Publication: 2010 Mar 24.
DOI: 10.1016/j.biortech.2010.03.024
Abstrakt: The objectives of the experiment were to assess the impact of nitrogen (N) and potassium (K) fertiliser application on the cell wall composition and fast-pyrolysis conversion quality of the commercially cultivated hybrid Miscanthus x giganteus. Five different fertiliser treatments were applied to mature Miscanthus plants which were sampled at five intervals over a growing season. The different fertiliser treatments produced significant variation in concentrations of cell wall components and ash within the biomass and affected the composition and quality of the resulting fast-pyrolysis liquids. The results indicated that application of high rates of N fertiliser had a negative effect on feedstock quality for this conversion pathway: reducing the proportion of cell wall components and increasing accumulation of ash in the harvested biomass. No exclusive effect of potassium fertiliser was observed. The low-N fertiliser treatment produced high quality, low ash-high lignin biomass most suitable as a feedstock for thermo-chemical conversion.
((c) 2010. Published by Elsevier Ltd.)
Databáze: MEDLINE
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