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Influence of ultrasonic pretreatment on the co-pyrolysis characteristics and kinetic parameters of municipal solid waste and paper mill sludge
被引:19
作者:
Fang, Shiwen
[1
]
Lin, Yousheng
[2
]
Lin, Yan
[3
]
Chen, Shu
[1
]
Shen, Xiangyang
[1
]
Zhong, Tianming
[1
]
Ding, Lixing
[1
]
Ma, Xiaoqian
[4
]
机构:
[1] Zhongkai Univ Agr & Engn, Coll Mech & Elect Engn, Guangzhou 510225, Peoples R China
[2] Dongguan Univ Technol, Guangdong Prov Key Lab Distributed Energy Syst, Sch Chem Engn & Energy Technol, Dongguan 523808, Peoples R China
[3] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
[4] South China Univ Technol, Sch Elect Power, Guangzhou 510640, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
Ultrasonic pretreatment;
Orthogonal;
DAEM;
Co-pyrolysis;
MgO;
Municipal solid waste;
SEWAGE-SLUDGE;
BIOMASS;
MODEL;
DAEM;
COMPONENTS;
BAGASSE;
OIL;
D O I:
10.1016/j.energy.2019.116310
中图分类号:
O414.1 [热力学];
学科分类号:
摘要:
In this study, through orthogonal experiments design, the influences of ultrasonic pretreatment (frequency, power and treatment time) on co-pyrolysis and catalytic pyrolysis of municipal solid waste and paper mill sludge were explored. The differential thermogravimetry curves became steeper and the peak values were larger after pretreatment, which made the pyrolysis reaction rapidly and the volatile separated out timely. However, the change of pyrolysis characteristics was not obvious after adding MgO. The catalytic effect of MgO increased with the increase of sludge ratio. After pretreatment, the average activation energy of the samples had an overall increasing trend, but the change was small. MgO had a decreasing effect on activation energy, and with the increasing proportion of sludge the degree of reduction became significant. In addition, high ultrasonic frequency had a negative effect on reducing activation energy. (C) 2019 Elsevier Ltd. All rights reserved.
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页数:10
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