title: Fast microwave-assisted catalytic co-pyrolysis of lignin and low-density polyethylene with HZSM-5 and MgO for improved bio-oil yield and quality.
abstract: Fast microwave-assisted catalytic co-pyrolysis of lignin and low-density polyethylene (LDPE) with HZSM-5 and MgO was investigated. Effects of pyrolysis temperature, lignin to LDPE ratio, MgO to HZSM-5 ratio, and feedstock to catalyst ratio on the products yields and chemical profiles were examined. 500°C was the optimal co-pyrolysis temperature in terms of the maximum bio-oil yield. The proportion of aromatics increased with increasing LDPE content. In addition, with the addition of LDPE (lignin/LDPE=1/2), methoxyl group in the phenols was completely removed. A synergistic effect was found between lignin and LDPE. The proportion of aromatics increased and alkylated phenols decreased with increasing HZSM-5 to MgO ratio. The bio-oil yield increased with the addition of appropriate amount of catalyst and the proportion of alkylated phenols increased with increasing catalyst to feedstock ratio.
authors.affiliation: Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China.
authors.forename: Liangliang
authors.initials: L
authors.lastname: Fan
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, United States.
authors.forename: Paul
authors.initials: P
authors.lastname: Chen
authors.affiliation: School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
authors.forename: Yaning
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, United States.
authors.forename: Shiyu
authors.initials: S
authors.lastname: Liu
authors.affiliation: Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China.
authors.forename: Yuhuan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China.
authors.forename: Yunpu
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China.
authors.forename: Leilei
authors.initials: L
authors.lastname: Dai
authors.affiliation: Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, United States. Electronic address: ruanx001@umn.edu.
authors.forename: Roger
authors.initials: R
authors.lastname: Ruan
mesh_terms: D056804:Biofuels; D006358:Hot Temperature; D008031:Lignin / Q000737:chemistry*; D008872:Microwaves; D020959:Polyethylene / Q000737:chemistry*; D012037:Refuse Disposal
chemical_list: D056804:Biofuels; D020959:Polyethylene; D008031:Lignin
keywords: Catalytic co-pyrolysis; HZSM-5; Lignin; Low-density polyethylene; MgO