Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 123, Issue -, Pages 40-48Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2016.12.031
Keywords
Co-pyrolysis; TG-FTIR; Hydrochar; Paper sludge
Funding
- National Natural Science Foundation of China [51406058, 51476060]
- Guangdong Key Laboratory of Efficient and Clean Energy Utilization [2013A061401005]
- Guangdong Natural Science Foundation [2015A030311037]
- Fundamental Research Funds for the Central Universities [2015ZZ015]
- Key Laboratory of Efficient and Clean Energy Utilization Of Guangdong Higher Education Institutes, South China University of Technology [KLB10004]
- China Postdoctoral Science Foundation [2015M582382]
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The co-pyrolysis characteristics for hydrochar, paper sludge and their blends were investigated by TG-FTIR technique. The pyrolysis of paper sludge and hydrochar could be divided into three stages and one stage respectively. The model-fitting method was adopted to investigate the kinetic parameters of pyrolysis process, and the n-th order reaction model matched the pyrolysis process well. The activation energy was determined by the composition of the feedstocks and the stages of the pyrolysis. TG-FfIR indicated that CO2, H2O, CO, C-H, C = O, C-O and C = C groups were the main gases released from the pyrolysis process. There existed a coupling synergistic effect between these two feedstocks. The evolution of the gaseous products was consistent with the weight loss of the mixtures during co-pyrolysis. The co-pyrolysis effectiveness index was calculated. When the mass proportion of hydrochar was 90%, most desired products could be obtained. (C) 2017 Elsevier B.V. All rights reserved.
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