DBPapers
DOI: 10.5593/SGEM2014/B41/S17.043

LIGNING AND ASH CONTENT CORRELATIONS IN GRASS BIOMASS PELLETS

R. Platace, A. Adamovics
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-15-5 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 1, 331-338 pp

ABSTRACT
Plant biomass is one of ecological solutions for the future, since it allows compensating growing shortage of fossil resources. Hoverer, biomass production has to face problems related to cultivation of grass with particular chemical content. Ash is indicator used to characterise quality of fuel, since higher ash content causes problems to automation of combustion process, whereas lignin is natural astringent rates, finding out biomass suitability for the production of biofuel, as well as studying correlations between factors influencing above indicators. The research helped discovering that ash content in grass biomass is high: festulolium
6.46-7.84%, timothy 4.89-7.13 %, meadow fescue 5.97- 6.98%. While lignin content in grass biomass is low: festulolium 4.1-4.59%, timothy 7.97-8.43%, meadow fescue 3.6-4.18%. Festulolium, timothy and meadow fescue biomass samples indicated close positive correlation between ash content and lignin content (r = 0.66; r = 74; r = 0.58, n= 18). Moreover, the research showed that as lignin content in grass biomass increases also ash content rises. Tests of grass biomass samples did not indicate correlation between lignin and ash content. Since in comparison with wood fuel indicators, ash content rates estimated in this study are that holds a granule together. Productivity and chemical content of grass are largely influenced by fertilisers, namely their types and rates applied; therefore the research aims at evaluating ash and lignin content in festulolium, timothy and meadow fescue biomass depending on fertiliser types and higher while lignin – lower, it is recommended to use herbaceous biomass only as an additive to wood chips or pellets.

Keywords: festulolium, timothy, meadow fescue, fertilizers, lignin, ash