Title:
Enhancement of Biogas Production by Integrating Anaerobic Digestion and Pyrolysis
Author(s):
Tao, R., Sivalingam, V., Lin, L., Dinamarca, C., Danielsen, S., Xin, G.
Document(s):
Paper
Poster
Abstract:
Integration of anaerobic digestion and pyrolysis was studied to promote biogas production by utilizing non-conventional feedstock, e.g., lignocellulosic biomass. The approach was that synthetic gas as pyrolysis gas was pre-treated in a Synolys reactor with slurry (mixture of food waste and animal manure) at an absolute pressure of 4 bar under 45°C before being fed to AD. The effluent of the Synolys reactor was evaluated for biogas production in batch tests, and the biogas production was increased by 48-70% compared to that with slurry as a direct feed substrate. This indicated that the microorganisms could utilize H2, CO, and CO2 and produce liquid after adaptation to the environment in the Synolys reactor after a certain time. The achieved maximum rate of syngas uptake rate was 5.6 mol·m-3·h-1 at 2000 rpm stirring speed. This study showed that syngas could be converted into a liquid stream with the existence of organic carbon and enhance biogas production.
Keywords:
anaerobic digestion, biogas, fermentation, pyrolysis, syngas, lignocellulosic sources
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Anaerobic digestion for biogas and biomethane production
Event:
30th European Biomass Conference and Exhibition
Session:
4CV.3.19
Pages:
778 - 781
ISBN:
978-88-89407-22-6
Paper DOI:
10.5071/30thEUBCE2022-4CV.3.19
Price:
FREE
