Title:
Ash Removal from Ash-Rich Biomass and Sludge: the BiAR Process
Author(s):
Faussone, G.C., Grilc, M., Likozar, B.
Document(s):
Paper
Slide presentation
Abstract:
This conference contribution will introduce the BiAR process (Biomass Ash Removal): a novel technology for renewable ash-free fuel production from low-value ash-containing feedstocks such as sludge, bark or rice husks that cannot be utilized directly as a heating fuel, because of the high ash content. BiAR process uses the solvolysis and cheap solvents at low temperature in order to allow the physical separation by a simple filtration of solid ash from liquefied biomass. The heat required to conduct the liquefaction at autogenic pressure is subsequently exploited for solvent recovery during distillation by a simple pressure release. Conversion of dry organic matter into the liquid form exceeded 85 wt.% for sewage sludge granules, 98 wt.% for rice husks and 99 wt.% for fir sawdust, while more than 90 wt.% of ash was recovered by filtration in majority of cases. Up to 95 % of liquefaction solvent was easily recovered from the filtrate by differential vacuum distillation. The PCT application has been recently filed for the BiAR process (PCT/IT2016/000140).
Keywords:
bark, rice husks, upgrading, sludge, ashes, removal
Topic:
Industry Sessions
Subtopic:
Biomass Resources (Crops, SRF, Algae and Organic Waste)
Event:
25th European Biomass Conference and Exhibition
Session:
IBO.8.4
Pages:
1904 - 1908
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-IBO.8.4
Price:
FREE
