Kinetic Analysis and Pyrolysis Behavior of Pine Needles by TG-FTIR and Py-GC/MS
Langui Xu,
Yujian Zhang,
Ziyong Wang,
Shurui Guo,
Yongxing Hao,
Yuguo Gao,
Min Xin,
Yi Ran,
Shuxun Li,
Rui Ji,
Hongmei Li,
Huixia Jiang,
Qingyan He,
Ruyi Huang
Affiliations
Langui Xu
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China
Yujian Zhang
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China
Ziyong Wang
Henan ALST New Energy Technology Co. LTD, Zhengzhou 450001, China
Shurui Guo
College of Architecture and Environment, Sichuan University, Chengdu China, 610065
Yongxing Hao
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China
Yuguo Gao
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China
Min Xin
Rural Energy Development Center of Sichuan Province, Chengdu 610041, China
Yi Ran
Biogas Institute of Ministry of Agriculture and Rural Affairs, Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
Shuxun Li
Sichuan Water Conservancy Vocational and Technical College, Chengdu 611830, China
Rui Ji
Sichuan Agricultural Foreign Cooperation and Communication Cente Chengdu 610041, China
Hongmei Li
Sichuan Agricultural Foreign Cooperation and Communication Cente Chengdu 610041, China
Huixia Jiang
Sichuan Research and Design Institute of Agricultural Machinery Chengdu 610066, China
Qingyan He
College of Architecture and Environment, Sichuan University, Chengdu China, 610065; Sichuan Research and Design Institute of Agricultural Machinery Chengdu 610066, China
Ruyi Huang
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; Rural Energy Development Center of Sichuan Province, Chengdu 610041, China; Biogas Institute of Ministry of Agriculture and Rural Affairs, Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, China
The pyrolysis performances and reaction kinetics of pine needles (PN) were investigated by integrating thermogravimetric analysis, Fourier transform infrared spectroscopy, and pyrolysis-gas chromatography/mass spectrometry. The average activation energy of PN was estimated to be 183.2 kJ/mol by Kissinger Akahira Sunose (KAS) and 183.8 kJ/mol by Flynn Wall Ozawa (FWO), respectively at heating rates of 10, 20, and 40 °C/min. The pyrolysis of PN was found to be more efficient at the lower heating rates, while increased heating rates promoted the reaction. Using the King-Kai (K-K) method, the activation energies of hemicellulose, cellulose, and lignin were calculated to be 156, 165, and 172 kJ/mol, respectively. The descending order of evolving gases and functional groups from PN was found to be CO2, C=C, C=O, H2O, CH4, and CO. The main pyrolytic by-products identified were hydrocarbons, phenols, alcohols, ketones, and aldehydes. The determination of kinetic parameters provides fundamental information for predicting the rates at which chemical reactions occur. This study demonstrates the potential of PN as a suitable source for bioenergy.
