%0 Conference Paper
%A Jablonowski, Nicolai David
%A Kollmann, Tobias
%A Nabel, Moritz
%A Klose, H.
%A Damm, T.
%A Grande, P. M.
%A Müller, Michael
%A Bläsing, Marc
%A Krafft, Simone
%A Kuperjans, I.
%A Dahmen, M.
%A Schurr, Ulrich
%T Sida: a promising “flex plant” for bioenergy applications?
%M FZJ-2015-06123
%D 2015
%X The performance and biomass yield of the perennial energy plant Sida hermaphrodita (hereafter referred to as sida) as a feedstock for biogas and solid fuel was evaluated throughout one entire growing period under agricultural field conditions. The aim was to determine the best time of the sida harvest; to evaluate the maximum biomass output depending on the plant development stage; to determine the energy value in terms of biogas production and solid fuel energy content; and to obtain a biomass comprising the most suitable cell wall composition enabling a better utilisation and upscaling for technical applications. The biomass yield was monitored weekly from April 2014 until February 2015. To determine the best energy use of sida biomass, four utilization scenarios combining solid fuel and biogas applications were evaluated to identify the best energy output. These were: 1.) one harvest for solid fuel only; 2.) one harvest for biogas production only; 3.) one harvest for biogas production, followed by a subsequent harvest of the re-grown biomass for solid fuel; 4.) or two consecutive harvests for biogas production.The results showed highest total dry biomass yields of max. 25 t/ha when harvested in July, whereas the highest dry matter of 70-80% was obtained at the end of the growing period in December/January. The four energy-use scenarios clearly indicated the highest energy recovery for scenario 1.) (solid fuel) of 439 GJ/ha. The options were ranked following the order: scenario 1.) >> 3.) > 4.) >2.). Analysis of the sida ash showed a very high melting point of >1500°C, associated with a net calorific value of 16.5-17.2 MJ/kg indicating its advantage for combustion without any post-treatment after harvesting. Cell wall analysis of the stems showed a steady increase in lignin reaching its plateau in harvest week 16 (July), whereas cellulose in the stems reached a plateau already in sampling week 4 (April). The results highlight Sida as a very promising woody, perennial biomass plant, providing feedstock biomass for flexible and multi-purpose energy applications.
%B Perennial Biomass Crops for a Resource Constrained World
%C 7 Sep 2015 - 10 Sep 2015, Hohenheim (Germany)
Y2 7 Sep 2015 - 10 Sep 2015
M2 Hohenheim, Germany
%F PUB:(DE-HGF)6
%9 Conference Presentation
%U https://juser.fz-juelich.de/record/256103