期刊
ENERGY & FUELS
卷 34, 期 1, 页码 607-615出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.9b03800
关键词
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资金
- National Natural Science Foundation of China [51906110]
- Natural Science Foundation of Jiangsu Province [BK20190465]
- China Postdoctoral Science Foundation [2019M650097]
- Major Program of Natural Science Fund for Colleges and Universities in Jiangsu Province [17KJA480002]
In terms of thermal behavior and char characteristics, co-pyrolysis of sewage sludge (SS) and rice straw (RS) to produce char samples has been evaluated in this study. Thermogravimetric analysis of the co-pyrolysis process indicated that the introduction of RS into co-pyrolysis with SS promoted the progress of co-pyrolysis by reducing the reaction activation energy, which also presented the synergistic effects during the co-pyrolysis process as a result of the migration of alkali metals. The char characteristics were analyzed by proximate analysis, elemental analysis, N-2 adsorption-desorption, X-ray diffraction patterns, scanning electron microscopy, and heavy metal behavior. The results showed that char samples from co-pyroysis of SS and RS with the high ash content and low heating value were not suitable for fuel. However, these char samples can be used for soil amendments as a result of the advantages of the increased C content, pH, and electrical conductivity values, the developed hierarchical porous structure, and the immobilization of heavy metals in char samples.
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