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Highly Selective Catalytic Oxi-upcycling of Polyethylene to Aliphatic Dicarboxylic Acid under a Mild Hydrogen-Free Process |
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| Authors: | Kaili Wang Rongrong Jia Prof Ping Cheng Prof Liyi Shi Prof Xiang Wang Prof Lei Huang |
| Institution: | 1. School of Materials Science and Engineering, Shanghai University, Shanghai, 200444 China
Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai, 200444 P. R. China;2. Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai, 200444 P. R. China;3. School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444 China;4. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024 China |
| Abstract: | A low-temperature hydrogen-free process for upcycling polyethylene (PE) plastics into aliphatic dicarboxylic acid is developed using a heterogeneous catalyst Ru/TiO2. The low-density PE (LDPE) conversion can reach 95 % in 24 h under a pressure of 1.5 MPa air at 160 °C with 85 % of the liquid product yield, which mainly is low molecular weight aliphatic dicarboxylic acid. Excellent performances can be also achieved for different PE feedstocks. This catalytic oxi-upcycling process paving a new way of upcycling polyethylene waste. |
| Keywords: | Aliphatic Dicarboxylic Acid Polyethylene TiO2 Upcycling Waste Plastic |