Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 44, Issue -, Pages 253-257Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2012.11.022
Keywords
Ballast organic matter; Steam-explosion; Enzymatic hydrolysis; Charcoal
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Funding
- Japanese Society for Promotion of Science Postdoctoral Fellowship for Foreign Researches [FY2011]
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The removal of hardly fermentable ballast from the maize silage was investigated on a commercial scale to reduce the retention times, volumes of fermentors and associated heating requirements. The technology consisted of the under-hot-water maceration followed by decantation and the double-screw-press to separate the most labile pools of carbon from the ballast organic matter. This procedure minimized the inhibitor formations in the subsequent steam-explosion followed by enzymatic hydrolysis. The hydrolysis products were squeezed out from the lignocellulose ballast by the rotary dewatering press, fused with liquids previously obtained and anaerobically fermented providing 316.7m(3) CH4 VS t(-1) in 200h. The rigid briquettes from the ballast at the rotary dewatering press were charcoaled (27.506 MJ kg(-1)). All the technology was designed to run on the waste heat from the flue gases (490 degrees C) at the cogeneration unit linked to the 1 MWep biogas station. (C) 2012 Elsevier B.V. All rights reserved.
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