Title:
Prospects and Limitations of Solid Fuel Enhancement Through Torrefaction, Hydrothermal Carbonization or Mechanical Leaching - Conclusions from Combustion Experiments and Emission Measurements
Author(s):
Khalsa, J., Döhling, F., Weller, N., Lenz, V.
Document(s):
Paper
Abstract:
In the recent years, along with a growing demand for wood as solid fuel, technological innovations have been made that focus on improving biomass by-products and residue biomasses for combustion. Three innovative pre-treatment technologies are torrefaction, hydrothermal carbonization and mechanical leaching. The purpose of this study is to compare solid fuel characteristics as well as the resulting combustion and emission behavior of fuels from these three technologies under defined small-scale combustion conditions. We analyzed chemical composition of the produced fuels as well as their combustion characteristics in small-scale units (30, 50kW), gaseous emissions (CO, NOx, SO2, HCl), particulate matter and bottom ash composition. Furthermore, the emission values were compared to the German legislation for emissions from small scale boilers < 100kW (1. BImschV) and the bottom ash was compared to the German legislation for fertilizer application (DüMV). We analyzed the following fuels: torrefied wheat straw pellets (STRTOR), hydrothermally carbonized brewer’s spent grain (BSGHTC) and pellets from mechanically leached foliage (FOLML).Their specific advantages and challenges regarding solid fuels for small-scale application are discussed.
Keywords:
emissions, fuel, torrefaction, residues, small scale application, characterisation
Topic:
Biomass Conversion Technologies for Intermediates, Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Production of advanced solid biofuels
Event:
22nd European Biomass Conference and Exhibition
Session:
3DO.5.5
Pages:
998 - 1003
ISBN:
978-88-89407-52-3
Paper DOI:
10.5071/22ndEUBCE2014-3DO.5.5
Price:
FREE
