TY - JOUR
T1 - Fast microwave-assisted pyrolysis of microalgae using microwave absorbent and HZSM-5 catalyst
AU - Borges, Fernanda Cabral
AU - Xie, Qinglong
AU - Min, Min
AU - Muniz, Luis Ant Ônio Rezende
AU - Farenzena, Marcelo
AU - Trierweiler, Jorge Otávio
AU - Chen, Paul
AU - Ruan, Roger
N1 - Funding Information:
The authors are grateful to CNPq, CAPES, as well as DOT/Sun Grant, USDA/DOE, to the University of Minnesota IREE and Center for Biorefining for their financial support for this work.
PY - 2014/8
Y1 - 2014/8
N2 - Fast microwave-assisted pyrolysis (fMAP) in the presence of a microwave absorbent (SiC) and catalyst (HZSM-5) was tested on a Chlorella sp. strain and on a Nannochloropsis strain. The liquid products were characterized, and the effects of temperature and catalyst:biomass ratio were analyzed. For Chlorella sp., a temperature of 550. °C, with no catalyst were the optimal conditions, resulting in a maximum bio-oil yield of 57. wt.%. For Nannochloropsis, a temperature of 500. °C, with 0.5 of catalyst ratio were shown to be the optimal condition, resulting in a maximum bio-oil yield of 59. wt.%. These results show that the use of microwave absorbents in fMAP increased bio-oil yields and quality, and it is a promising technology to improve the commercial application and economic outlook of microwave pyrolysis technology. Additionally, the use of a different catalyst needs to be considered to improve the bio-oil characteristics.
AB - Fast microwave-assisted pyrolysis (fMAP) in the presence of a microwave absorbent (SiC) and catalyst (HZSM-5) was tested on a Chlorella sp. strain and on a Nannochloropsis strain. The liquid products were characterized, and the effects of temperature and catalyst:biomass ratio were analyzed. For Chlorella sp., a temperature of 550. °C, with no catalyst were the optimal conditions, resulting in a maximum bio-oil yield of 57. wt.%. For Nannochloropsis, a temperature of 500. °C, with 0.5 of catalyst ratio were shown to be the optimal condition, resulting in a maximum bio-oil yield of 59. wt.%. These results show that the use of microwave absorbents in fMAP increased bio-oil yields and quality, and it is a promising technology to improve the commercial application and economic outlook of microwave pyrolysis technology. Additionally, the use of a different catalyst needs to be considered to improve the bio-oil characteristics.
KW - Bio-oil
KW - Fast pyrolysis
KW - Microalgae
KW - Microwave
KW - Model compounds
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U2 - 10.1016/j.biortech.2014.05.100
DO - 10.1016/j.biortech.2014.05.100
M3 - Article
C2 - 24951938
AN - SCOPUS:84902584671
SN - 0960-8524
VL - 166
SP - 518
EP - 526
JO - Bioresource Technology
JF - Bioresource Technology
ER -
