TG-FTIR and Py-GC/MS analyses of pyrolysis behaviors and products of cattle manure in CO2 and N2 atmospheres: Kinetic, thermodynamic, and machine-learning models
| Autor: | Fatih Evrendilek, Jingyong Liu, Musa Buyukada, Junhui Zhang, Xiaochun Zhang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Thermogravimetric analysis
Renewable Energy Sustainability and the Environment Chemistry 020209 energy Analytical chemistry Energy Engineering and Power Technology 02 engineering and technology Mass spectrometry Manure chemistry.chemical_compound Fuel Technology 020401 chemical engineering Nuclear Energy and Engineering 0202 electrical engineering electronic engineering information engineering Phenol Pyrolytic carbon 0204 chemical engineering Fourier transform infrared spectroscopy Gas chromatography–mass spectrometry Pyrolysis |
| Zdroj: | Energy Conversion and Management. 195:346-359 |
| ISSN: | 0196-8904 |
| Popis: | The increased amounts of manure have become an issue of environmental management due to the rapid growth of livestock industry. This study quantified the pyrolytic performance and gaseous products of cattle manure using (derivative) thermogravimetric ((D)TG), Fourier transform infrared spectrometry (FTIR) and pyrolysis–gas chromatography and mass spectrometry (Py-GC/MS) analyses. The pyrolysis process of cattle manure was determined to occur in three stages, with the main reaction in the range of 161–600 °C. The N2 atmosphere was found to be more favorable for the release of volatiles according to a higher comprehensive pyrolysis index in the range of 30−600 °C. The lower activation energies were shown to be required in the CO2 than N2 atmosphere. Random forests algorithm outperformed multiple linear regression, gradient boosting machine, and artificial neural networks for the prediction of mass loss due to the cattle manure pyrolysis. The main gaseous products were CO2, phenol (23.23%), and furans (12.98%). The theoretical and practical guidance for the energy and resource utilization of cattle manure was provided by this study. |
| Databáze: | OpenAIRE |
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