Slow pyrolysis of waste navel orange peels with metal oxide catalysts to produce high-grade bio-oil

Author:

Zhang Wei12,Xia Hongying12,Deng Yong12,Zhang Qi12,Xin Chunfu12

Affiliation:

1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology , Kunming 650093 , China

2. Key Laboratory of Unconventional Metallurgy, Ministry of Education , Kunming 650093 , China

Abstract

Abstract Renewable biomass resources have become increasingly attractive in recent years. In this study, the pyrolysis of waste navel orange peels was carried out with different metal oxides (Cu2O, CaO, V2O5, Fe2O3, and ZnO) in a tube furnace to obtain high-quality bio-oil, from which high-value chemicals such as 3-furaldehyde could be well recovered to enhance the economic value of waste navel orange peels. The effects of different metal oxides on bio-oil were analyzed by GC/MS. The results showed that Cu2O and Fe2O3, as catalysts for slow pyrolysis, promoted the production of 3-furaldehyde compounds at a scale of approximately 5.69 and 4.82 times higher than that of pyrolysis without the addition of metal oxides, respectively. High-value chemicals such as 3-furaldehyde obtained from bio-oil can enhance the economic value of waste navel orange peels for full recovery and reuse.

Publisher

Walter de Gruyter GmbH

Subject

Health, Toxicology and Mutagenesis,Industrial and Manufacturing Engineering,Fuel Technology,Renewable Energy, Sustainability and the Environment,General Chemical Engineering,Environmental Chemistry

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