Title:
Conversion of Residue Straws Using Intermediate Pyrolysis for Decentralised Off-Grid Electricity Generation in India
Author(s):
Sagi, S., Patel, A.R., Apfelbacher, A., Tyagi, H., Singh, H., Hornung, A.
Document(s):
Paper
Abstract:
Intermediate pyrolysis for biomass conversion is an existing alternative to off¬grid electricity production from fossil fuel resources, which helps and supports local farmers, reduces the dependency on imports and creates by this way a long term sustainable and economical way of rural energy conversion. Use of agricultural residues, like wheat or rice straw for energy conversion, is the most effective measure in terms of costs and availability. The straw obtained from the field is milled and pelletized prior to the pyrolysis process. Pyrolysis tests are carried on a lab scale Pyroformer with wheat straw at a feed rate of 20 kg/h. The products of the process are the vapour and the char. The vapours are quenched using biodiesel as direct contact medium without any hot gas filtration. The process temperature was at 360 °C and the yields for the product fractions char, pyrolysis oil, and non¬condensable gas fractions were, 33 %, 33 %, and 34 % respectively. The pyrolysis oil was condensed in a quenching unit using bio¬diesel. The blend produced was 30 % pyrolysis liquid and 70 % bio¬diesel. The blended oil has a heating value of 36 MJ/kg, and acidity of 4.8, no separate water fraction appeared.
Keywords:
pyrolysis oil, straw, biochar, intermediate pyrolysis
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Pyrolysis and other biomass liquefaction technologies
Event:
20th European Biomass Conference and Exhibition
Session:
2DO.11.5
Pages:
978 - 981
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2DO.11.5
Price:
FREE
