TY - JOUR
T1 - Development and application of a continuous fast microwave pyrolysis system for sewage sludge utilization
AU - Zhou, Junwen
AU - Liu, Shiyu
AU - Zhou, Nan
AU - Fan, Liangliang
AU - Zhang, Yaning
AU - Peng, Peng
AU - Anderson, Erik
AU - Ding, Kuan
AU - Wang, Yunpu
AU - Liu, Yuhuan
AU - Chen, Paul
AU - Ruan, Roger
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/5
Y1 - 2018/5
N2 - A continuous fast microwave-assisted pyrolysis system was designed, fabricated, and tested with sewage sludge. The system is equipped with continuous biomass feeding, mixing of biomass and microwave absorbent, and separated catalyst upgrading. The effect of the sludge pyrolysis temperature (450, 500, 550, and 600 °C) on the products yield, distribution and potentially energy recovery were investigated. The physical, chemical, and energetic properties of the raw sewage sludge and bio-oil, char and gas products obtained were analyzed using elemental analyzer, GC–MS, Micro-GC, SEM and ICP-OES. While the maximum bio-oil yield of 41.39 wt% was obtained at pyrolysis temperature of 550 °C, the optimal pyrolysis temperature for maximum overall energy recovery was 500 °C. The absence of carrier gas in the process may be responsible for the high HHV of gas products. This work could provide technical support for microwave-assisted system scale-up and sewage sludge utilization.
AB - A continuous fast microwave-assisted pyrolysis system was designed, fabricated, and tested with sewage sludge. The system is equipped with continuous biomass feeding, mixing of biomass and microwave absorbent, and separated catalyst upgrading. The effect of the sludge pyrolysis temperature (450, 500, 550, and 600 °C) on the products yield, distribution and potentially energy recovery were investigated. The physical, chemical, and energetic properties of the raw sewage sludge and bio-oil, char and gas products obtained were analyzed using elemental analyzer, GC–MS, Micro-GC, SEM and ICP-OES. While the maximum bio-oil yield of 41.39 wt% was obtained at pyrolysis temperature of 550 °C, the optimal pyrolysis temperature for maximum overall energy recovery was 500 °C. The absence of carrier gas in the process may be responsible for the high HHV of gas products. This work could provide technical support for microwave-assisted system scale-up and sewage sludge utilization.
KW - Biochar
KW - Continuous pyrolysis system
KW - Energy recovery potential
KW - Fast microwave-assisted pyrolysis
KW - Sewage sludge
UR - http://www.scopus.com/inward/record.url?scp=85042191066&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2018.02.034
DO - 10.1016/j.biortech.2018.02.034
M3 - Article
C2 - 29455097
AN - SCOPUS:85042191066
SN - 0960-8524
VL - 256
SP - 295
EP - 301
JO - Bioresource Technology
JF - Bioresource Technology
ER -
