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Bioresour Technol. 2016 Mar;204:164-170. doi: 10.1016/j.biortech.2015.12.085. Epub 2016 Jan 6.

Fast microwave-assisted catalytic co-pyrolysis of corn stover and scum for bio-oil production with CaO and HZSM-5 as the catalyst.

Author information

1
Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA.
2
Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA; Biochemical Engineering College, Beijing Union University, No. 18, Fatouxili 3 Area, Chaoyang District, Beijing 100023, China.
3
Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA; Ministry of Education Engineering Research Center for Biomass Conversion, Nanchang University, 235 Nanjing Road, Nanchang, Jiangxi 330047, China.
4
Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA; Ministry of Education Engineering Research Center for Biomass Conversion, Nanchang University, 235 Nanjing Road, Nanchang, Jiangxi 330047, China. Electronic address: ruanx001@umn.edu.

Abstract

This study investigated fast microwave-assisted catalytic co-pyrolysis of corn stover and scum for bio-oil production with CaO and HZSM-5 as the catalyst. Effects of reaction temperature, CaO/HZSM-5 ratio, and corn stover/scum ratio on co-pyrolysis product fractional yields and selectivity were investigated. Results showed that co-pyrolysis temperature was selected as 550°C, which provides the maximum bio-oil and aromatic yields. Mixed CaO and HZSM-5 catalyst with the weight ratio of 1:4 increased the aromatic yield to 35.77 wt.% of feedstock, which was 17% higher than that with HZSM-5 alone. Scum as the hydrogen donor, had a significant synergistic effect with corn stover to promote the production of bio-oil and aromatic hydrocarbons when the H/C(eff) value exceeded 1. The maximum yield of aromatic hydrocarbons (29.3 wt.%) were obtained when the optimal corn stover to scum ratio was 1:2.

KEYWORDS:

CaO catalyst; Catalytic co-pyrolysis; Microwave-assisted system; Scum; Zeolite

PMID:
26773959
DOI:
10.1016/j.biortech.2015.12.085
[Indexed for MEDLINE]

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