title: The catalytic pyrolysis of food waste by microwave heating.
abstract: This study describes a series of experiments that tested the use of microwave pyrolysis for treating food waste. Characteristics including rise in temperature, and the three-phase products, were analyzed at different microwave power levels, after adding 5% (mass basis) metal oxides and chloride salts to the food waste. Results indicated that, the metal oxides MgO, Fe₂O₃ and MnO₂ and the chloride salts CuCl₂ and NaCl can lower the yield of bio-oil and enhance the yield of gas. Meanwhile, the metal oxides MgO and MnO₂ can also lower the low heating value (LHV) of solid residues and increase the pH values of the lower layer bio-oils. However, the chloride salts CuCl₂ and NaCl had the opposite effects. The optimal microwave power for treating food waste was 400W; among the tested catalysts, CuCl₂ was the best catalyst and had the largest energy ratio of production to consumption (ERPC), followed by MnO₂.
authors.affiliation: Electric Power College, South China University of Technology, Guangzhou 510640, China; Department of Mechanical and Electrical Engineering, Hunan Institute of Humanities, Science and Technology, Loudi 417000, China. Electronic address: haliliu@126.com.
authors.forename: Haili
authors.initials: H
authors.lastname: Liu
authors.affiliation: Electric Power College, South China University of Technology, Guangzhou 510640, China.
authors.forename: Xiaoqian
authors.initials: X
authors.lastname: Ma
authors.affiliation: Electric Power College, South China University of Technology, Guangzhou 510640, China.
authors.forename: Longjun
authors.initials: L
authors.lastname: Li
authors.affiliation: Electric Power College, South China University of Technology, Guangzhou 510640, China.
authors.forename: ZhiFeng
authors.initials: Z
authors.lastname: Hu
authors.affiliation: Physics Science and Technology Institute, Guangxi Normal University, Guilin 541004, China.
authors.forename: Pingsheng
authors.initials: P
authors.lastname: Guo
authors.affiliation: Department of Mechanical and Electrical Engineering, Hunan Institute of Humanities, Science and Technology, Loudi 417000, China.
authors.forename: Yuhui
authors.initials: Y
authors.lastname: Jiang
mesh_terms: D056804:Biofuels; D002384:Catalysis; D002681:China; D003300:Copper / Q000737:chemistry; D005290:Ferric Compounds / Q000737:chemistry; D005502:Food; D006358:Hot Temperature; D008277:Magnesium Oxide / Q000737:chemistry; D017895:Manganese Compounds / Q000737:chemistry; D008872:Microwaves; D010087:Oxides / Q000737:chemistry; D012037:Refuse Disposal / Q000379:methods*; D012965:Sodium Chloride / Q000737:chemistry; D014866:Waste Products / Q000032:analysis*
chemical_list: D056804:Biofuels; D005290:Ferric Compounds; D017895:Manganese Compounds; D010087:Oxides; D014866:Waste Products; C000499:ferric oxide; D008277:Magnesium Oxide; D012965:Sodium Chloride; C027424:manganese oxide; D003300:Copper; C029892:cupric chloride
keywords: Catalyst; Chloride salts; Food waste; Metal oxides; Microwave pyrolysis