Miscanthus as a feedstock for fast-pyrolysisDoes agronomic treatment affect quality?

Authors Organisations
Type Article
Original languageEnglish
Pages (from-to)6185-6191
Number of pages7
JournalBioresource Technology
Volume101
Issue number15
DOI
Publication statusPublished - Aug 2010
Links
Permanent link
View graph of relations
Citation formats

Abstract

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.

Keywords

  • Fertiliser, Lignocellulosic, Ash, Cell wall, Thermochemical