Title:
Integral Optimization of Torrefied Cereal Straw Pellets Production
Author(s):
Lemus, F.J., Gil, J.
Document(s):
Paper
Abstract:
In this work, cereal straw torrefaction tests were carried out at pilot plant scale, and then pelletised at different conditions. Chopped straw and straw pellets were tested as fuels, in order to investigate the bulk density effect in torrefaction performance and optimization of pelletisation. High quality torrefied straw pellets can be produced. Thermal efficiency for straw torrefaction is higher than for wood due to the lower moisture content and higher reactivity. Using straw pellets as feedstock for torrefaction, production rate was increased by 55% at the same torrefaction temperature compared with milled straw. In addition, production rate is significantly higher and heat demand lower than all the woody biomass tested in the same pilot plant. Straw is challenging fuel but process could be optimizing to achieve high plant throughput and product quality. Straw has a very high potential worldwide similar to wood. Torrefied straw pellets are potential candidates to substitute fossil fuels in power plants, due to their high energy density and better storage. It suggests a better milling behavior compared with traditional biomass fuels.
Keywords:
pellets, straw, torrefaction, optimization
Topic:
Biomass Conversion Technologies for Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Production of thermally treated solid biofuels
Event:
24th European Biomass Conference and Exhibition
Session:
3DO.9.1
Pages:
1133 - 1137
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-3DO.9.1
Price:
FREE
