Title:
Optimisation of Microwave Pretreatment for Wheat Straw Conversion into Biogas
Author(s):
Ribeiro, T., Jackowiak, D., Bassard, D., Nonus, M., Pauss, A.
Document(s):
Paper
Abstract:
This study shows the optimization of a microwave pretreatment for wheat straw solubilisation and anaerobic biodegradability. The maximum yield of methane production was obtained at 150°C with an improvement of 28% compared to an untreated sample. In addition, at this temperature, the time to reach 80% of the methane volume obtained from untreated straw was about 35%. The study of ramp time and holding time at targeted temperature showed that they had no improvement effect. Thus, the best conditions are the highest heating rate for a final temperature 150°C without any holding time. The reading of energy consumed by pretreatment and energy overproduced by pretreated samples showed that increasing tVS amount and heating rate led to a saving of energy consumption. Nevertheless, to obtain a positive energy balance, a microwave device should consume less than 2.65 kJ/gtVS.
Keywords:
agricultural residues, anaerobic digestion, biogas, pretreatment, microwave
Topic:
Biomass Resources
Subtopic:
Biomass residues and by-products
Event:
19th European Biomass Conference and Exhibition
Session:
VP1.2.12
Pages:
436 - 442
ISBN-13:
978-88-89407-55-4
ISBN-10:
88-89407-55-7
Paper DOI:
10.5071/19thEUBCE2011-VP1.2.12
Price:
FREE
