TY - JOUR
T1 - Improving hydrocarbon yield via catalytic fast co-pyrolysis of biomass and plastic over ceria and HZSM-5
T2 - An analytical pyrolyzer analysis
AU - Ding, Kuan
AU - He, Aoxi
AU - Zhong, Daoxu
AU - Fan, Liangliang
AU - Liu, Shiyu
AU - Wang, Yunpu
AU - Liu, Yuhuan
AU - Chen, Paul
AU - Lei, Hanwu
AU - Ruan, Roger
PY - 2018/11
Y1 - 2018/11
N2 - The excessive oxygen content in biomass obstructs the production of high-quality bio-oils. In this work, we developed a tandem catalytic bed (TCB) of CeO2 and HZSM-5 in an analytical pyrolyzer to enhance the hydrocarbon production from co-pyrolysis of corn stover (CS) and LDPE. Results indicated that CeO2 could remove oxygen from acids, aldehydes and methoxy phenols, producing a maximum yield of hydrocarbons of 85% and highest selectivity of monocyclic aromatics of 73% in the TCB. The addition of LDPE exhibited a near-complete elimination of oxygenates, leaving hydrocarbons as the overwhelming products. With increasing LDPE proportion, the yield of aliphatics and the selectivity of BTX kept increasing. An optimum H/Ceff of 0.7 was superior to that reported in literature. Mechanisms consisting of deoxygenation, Diels-Alder reactions, hydrocarbon pool and hydrogen transfer reactions were discussed extensively. Our findings provide an efficient method to produce high-quality biofuels from renewable biomass resources.
AB - The excessive oxygen content in biomass obstructs the production of high-quality bio-oils. In this work, we developed a tandem catalytic bed (TCB) of CeO2 and HZSM-5 in an analytical pyrolyzer to enhance the hydrocarbon production from co-pyrolysis of corn stover (CS) and LDPE. Results indicated that CeO2 could remove oxygen from acids, aldehydes and methoxy phenols, producing a maximum yield of hydrocarbons of 85% and highest selectivity of monocyclic aromatics of 73% in the TCB. The addition of LDPE exhibited a near-complete elimination of oxygenates, leaving hydrocarbons as the overwhelming products. With increasing LDPE proportion, the yield of aliphatics and the selectivity of BTX kept increasing. An optimum H/Ceff of 0.7 was superior to that reported in literature. Mechanisms consisting of deoxygenation, Diels-Alder reactions, hydrocarbon pool and hydrogen transfer reactions were discussed extensively. Our findings provide an efficient method to produce high-quality biofuels from renewable biomass resources.
KW - Catalytic fast pyrolysis
KW - CeO
KW - HZSM-5
KW - Tandem catalytic bed
KW - Upgraded biofuel
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UR - http://www.scopus.com/inward/citedby.url?scp=85050565516&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2018.07.108
DO - 10.1016/j.biortech.2018.07.108
M3 - Article
C2 - 30064033
AN - SCOPUS:85050565516
SN - 0960-8524
VL - 268
SP - 1
EP - 8
JO - Bioresource Technology
JF - Bioresource Technology
ER -
