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Author(s): |
Ming-qiang Chen, Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
Juan Ruan, Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
Jun Wang, Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
Peng Zhang, Department of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China |
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Abstract: |
Study of the thermal decomposition characteristics of pear leaves was conducted. The pyrolysis experiments were performed up to 800 ℃ at heating rates of 10、20、30、50 and 80 ℃/min in a dynamic nitrogen flow of 100 mL/min respectively. Weight loss and weight loss rate curves show that pyrolysis process can be divided into three stages: slow dehydration stage, rapid devolatilization process and the main stage of pyrolysis, the slow carbonization stage.Pyrolysis of pear leaves was conducted with our self-made lab-scale equipment and gaseous,liquid and solid products were collected. The effects of heating rate on pyrolysis of pear leaves with different size ranges were inwestigated.The results indicate that liquid product yield from pyrolysis with higher heating rate is lower than that from lower heating rate,whereas its water content is lower. pyrolysis method and the particle size of raw materials has little effect on the bio-oil composition, Acetic acid, methyl furan are dominant components in the detected organic compounds .
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