Influence of Pyrolysis Temperature and Pellet Size on Syngas Production from Sewage Sludge: towards Energy Recovery
- DOI
- 10.2991/iccet-15.2015.128How to use a DOI?
- Keywords
- Sewage sludge, Pyrolysis, Syngas, Pellet size, Operation mode
- Abstract
The energy recovery from sewage sludge has been turned out to be vital solution to the sludge problem. This study focused on the conversion of sewage sludge into syngas production. The effects of pyrolysis temperature and pellet size on syngas yield and composition were studied. The influence of operation mode on syngas yield was also investigated. Results showed that when the pyrolysis temperature increased from 450°C to 850°C, the yield of syngas increased and the energy recovery of syngas reached maximum value of 5194.3 J•g-1. Besides, the maximum lower heating value (LHV) of syngas reached 31.5 MJ•m-3 at 550 °C because the CH4 mole percentage in the total gas reached maximum value. The smaller pellet size was demonstrated to favour the production of H2, CO and CH4. The maximum CO and H2 yield can be achieved at pyrolysis temperature of 850°C for smaller particle size. The syngas yield obtained in continuous operation reactor was evidently lower than that in sequencing batch reactor at pyrolysis temperature of 450 and 550°C. The difference of syngas yield in the two operation modes decreased with increasing pyrolysis temperature.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yuwen Zhu AU - Yanfang Miao AU - Lei Zhang AU - Jiujun Yang PY - 2015/11 DA - 2015/11 TI - Influence of Pyrolysis Temperature and Pellet Size on Syngas Production from Sewage Sludge: towards Energy Recovery BT - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015 PB - Atlantis Press SP - 689 EP - 693 SN - 2352-5401 UR - https://doi.org/10.2991/iccet-15.2015.128 DO - 10.2991/iccet-15.2015.128 ID - Zhu2015/11 ER -