title: Two-step fast microwave-assisted pyrolysis of biomass for bio-oil production using microwave absorbent and HZSM-5 catalyst.
abstract: A novel technology of two-step fast microwave-assisted pyrolysis (fMAP) of corn stover for bio-oil production was investigated in the presence of microwave absorbent (SiC) and HZSM-5 catalyst. Effects of fMAP temperature and catalyst-to-biomass ratio on bio-oil yield and chemical components were examined. The results showed that this technology, employing microwave, microwave absorbent and HZSM-5 catalyst, was effective and promising for biomass fast pyrolysis. The fMAP temperature of 500°C was considered the optimum condition for maximum yield and best quality of bio-oil. Besides, the bio-oil yield decreased linearly and the chemical components in bio-oil were improved sequentially with the increase of catalyst-to-biomass ratio from 1:100 to 1:20. The elemental compositions of bio-char were also determined. Additionally, compared to one-step fMAP process, two-step fMAP could promote the bio-oil quality with a smaller catalyst-to-biomass ratio.
authors.affiliation: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China; Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, MN 55108, USA.
authors.forename: Bo
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China. Electronic address: zzhong@seu.edu.cn.
authors.forename: Zhaoping
authors.initials: Z
authors.lastname: Zhong
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, MN 55108, USA.
authors.forename: Qinglong
authors.initials: Q
authors.lastname: Xie
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, MN 55108, USA.
authors.forename: Shiyu
authors.initials: S
authors.lastname: Liu
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, MN 55108, USA. Electronic address: ruanx001@umn.edu.
authors.forename: Roger
authors.initials: R
authors.lastname: Ruan
mesh_terms: D056804:Biofuels; D018533:Biomass; D002384:Catalysis; D017745:Incineration / Q000379:methods*; D008872:Microwaves; D013696:Temperature
chemical_list: D056804:Biofuels
keywords: Catalytic upgrading; HZSM-5 zeolite catalyst; Microwave; Pyrolysis; Two-step