In-depth comparison of morphology, microstructure, and pathway of char derived from sewage sludge and relevant model compounds

Copyright © 2019 Elsevier Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 102(2020) vom: 01. Feb., Seite 432-440
1. Verfasser: Peng, Chuan (VerfasserIn)
Weitere Verfasser: Zhai, Yunbo, Hornung, Andreas, Wang, Bei, Li, Shanhong, Wang, Tengfei, Li, Caiting, Zhu, Yun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Char microstructure Char morphology Hydrothermal conversion Model compounds Reaction pathway Sewage sludge Sewage Carbon 7440-44-0 mehr... Lignin 9005-53-2
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520 |a Hydrothermal conversion (HTC) of sewage sludge (SS) and its relevant model compounds such as cellulose, glucose, lignin and soybean protein (substitute for protein) was experimentally conducted at moderate reaction temperature of 260 °C for 60 min. The structural properties, carbon-containing groups, and microstructure of the char were characterised by several techniques. The results revealed that more benzene rings were formed by small clusters and the CO bond on Aryl-alkyl ether decomposed on the surface particles during the HTC process. In addition, the catalyst Zeolite Socony Mobil-5 (ZSM-5, Si/Al: 300) showed an excellent performance on the high graphite degree of the char under moderate reaction temperature of 260 °C. In particular, cellulose has the most dramatic influence on the depolymerisation of C(C,H). As evidenced with SEM, the size of the char derived from SS with ZSM-5 catalyst is 10-15 μm, which is smaller than the char without catalyst. A mechanism for derivation of char from individual model compounds is proposed. The end products of lignin are composed of polyaromatic char, while the composition of the char derived from protein suggests that polymerisation may occur during hydrothermal reaction leading to formation of structures with N-containing compounds 
650 4 |a Journal Article 
650 4 |a Char microstructure 
650 4 |a Char morphology 
650 4 |a Hydrothermal conversion 
650 4 |a Model compounds 
650 4 |a Reaction pathway 
650 4 |a Sewage sludge 
650 7 |a Sewage  |2 NLM 
650 7 |a Carbon  |2 NLM 
650 7 |a 7440-44-0  |2 NLM 
650 7 |a Lignin  |2 NLM 
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700 1 |a Zhai, Yunbo  |e verfasserin  |4 aut 
700 1 |a Hornung, Andreas  |e verfasserin  |4 aut 
700 1 |a Wang, Bei  |e verfasserin  |4 aut 
700 1 |a Li, Shanhong  |e verfasserin  |4 aut 
700 1 |a Wang, Tengfei  |e verfasserin  |4 aut 
700 1 |a Li, Caiting  |e verfasserin  |4 aut 
700 1 |a Zhu, Yun  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Waste management (New York, N.Y.)  |d 1999  |g 102(2020) vom: 01. Feb., Seite 432-440  |w (DE-627)NLM098197061  |x 1879-2456  |7 nnns 
773 1 8 |g volume:102  |g year:2020  |g day:01  |g month:02  |g pages:432-440 
856 4 0 |u http://dx.doi.org/10.1016/j.wasman.2019.11.007  |3 Volltext 
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