期刊
THERMOCHIMICA ACTA
卷 667, 期 -, 页码 207-218出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2018.06.009
关键词
Oily sludge; Litchi peels; Co-combustion; Thermogravimetric analysis; Master-plots method
资金
- Scientific and Technological Planning Project of Guangzhou, China [201704030109, 2016201604030058]
- Science and Technology Planning Project of Guangdong Province, China [2017A040403059, 2017A040403045, 2017A050501036]
- Guangdong Special Support Program for Training High Level Talents [2014TQ01Z248]
The thermal characteristics and kinetics of oily sludge, litchi peels and their blends were comprehensively evaluated using thermogravimetric experiments under air atmosphere. Results showed that devolatilization, ignition and burnout indices of litchi peels were higher than those of oily sludge, with better combustion characteristics. However, co-combustion performance decreased with increased litchi peels & action. Such interactions as inhibition effect on devolatilization and promotion effect on char oxidation of oily sludge occurred. Average activation energy was estimated at 118.1 kJ/mol for oily sludge and 215.2 kJ/mol for litchi peels using the Kissinger-Akahira-Sunose integral method and reached its minimum value with the addition of 15%-20% litchi peels. Trend of activation energy was consistent with the interaction analysis during co-combustion process. Kinetic triplets were also estimated using the integral master-plots method, while the most suitable reaction model for three stages of oily sludge and their blends was proposed.
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