title: Improving the conversion of biomass in catalytic fast pyrolysis via white-rot fungal pretreatment.
abstract: This study investigated the effect of white-rot fungal pretreatment on corn stover conversion in catalytic fast pyrolysis (CFP). Corn stover pretreated by white-rot fungus Irpex lacteus CD2 was fast pyrolyzed alone (non-CFP) and with ZSM-5 zeolite (CFP) in a semi-batch pyroprobe reactor. The fungal pretreatment considerably increased the volatile product yields (predominantly oxygenated compounds) in non-CFP, indicating that fungal pretreatment enhances the corn stover conversion in fast pyrolysis. In the presence of ZSM-5 zeolite, these oxygenated volatiles were further catalytically converted to aromatic hydrocarbons, whose yield increased from 10.03 wt.% for the untreated corn stover to 11.49 wt.% for the pretreated sample. In contrast, the coke yield decreased from 14.29 to 11.93 wt.% in CFP following the fungal pretreatment. These results indicate that fungal pretreatment can enhance the production of valuable aromatics and decrease the amount of undesired coke, and thus has a beneficial effect on biomass conversion in CFP.
authors.affiliation: School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Tsinghua University, Beijing 100084, People's Republic of China.
authors.forename: Yanqing
authors.initials: Y
authors.lastname: Yu
authors.forename: Yelin
authors.initials: Y
authors.lastname: Zeng
authors.forename: Jiane
authors.initials: J
authors.lastname: Zuo
authors.forename: Fuying
authors.initials: F
authors.lastname: Ma
authors.forename: Xuewei
authors.initials: X
authors.lastname: Yang
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Zhang
authors.forename: Yujue
authors.initials: Y
authors.lastname: Wang
mesh_terms: D001487:Basidiomycota / Q000378:metabolism*; D018533:Biomass; D001709:Biotechnology / Q000379:methods*; D002384:Catalysis; D004602:Elements; D006358:Hot Temperature; D014866:Waste Products / Q000032:analysis; D003313:Zea mays / Q000737:chemistry; D017641:Zeolites / Q000737:chemistry
chemical_list: D004602:Elements; D014866:Waste Products; C570564:ZSM-5 zeolite; D017641:Zeolites