Characterization of bio-oil and biochar from high-temperature pyrolysis of sewage sludge

The influence of temperature (550-850°C) on the characteristics of bio-oil and biochar from the pyrolysis of sewage sludge (SS) in a horizontal tube reactor was investigated. Results showed that when the pyrolysis temperature increased from 550°C to 850°C, the yield of bio-oil decreased from 26.16%...

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Veröffentlicht in:Environmental technology. - 1993. - 36(2015), 1-4 vom: 07. Jan., Seite 470-8
1. Verfasser: Chen, Hongmei (VerfasserIn)
Weitere Verfasser: Zhai, Yunbo, Xu, Bibo, Xiang, Bobin, Zhu, Lu, Qiu, Lei, Liu, Xiaoting, Li, Caiting, Zeng, Guangming
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't bio-oil biochar combustion characteristic pyrolysis sewage sludge Biofuels Sewage Charcoal 16291-96-6
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520 |a The influence of temperature (550-850°C) on the characteristics of bio-oil and biochar from the pyrolysis of sewage sludge (SS) in a horizontal tube reactor was investigated. Results showed that when the pyrolysis temperature increased from 550°C to 850°C, the yield of bio-oil decreased from 26.16% (dry ash-free basis) to 20.78% (dry ash-free basis). Main components of bio-oil were phenols, esters, cholests, ketones, amides, indoles, and nitriles. Besides, the elevated heating rate of 25°C/min was demonstrated to favour the complete combustion of bio-oil. Moreover, caused by the increase in temperature, the yield of biochar decreased from 54.9 to 50.6 wt%, Brunauer-Emmet-Teller surface area increased from 48.51 to 81.28 m2/g. Furthermore, pH was increased from 5.93 of SS to 7.15-8.96 of biochar. The negative ζ-potential was also strengthened (-13.87 to -11.30 mV) and principal functional groups on the surface of biochar were -OH, C=O, C=C, -NO2, and S=O 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a bio-oil 
650 4 |a biochar 
650 4 |a combustion characteristic 
650 4 |a pyrolysis 
650 4 |a sewage sludge 
650 7 |a Biofuels  |2 NLM 
650 7 |a Sewage  |2 NLM 
650 7 |a biochar  |2 NLM 
650 7 |a Charcoal  |2 NLM 
650 7 |a 16291-96-6  |2 NLM 
700 1 |a Zhai, Yunbo  |e verfasserin  |4 aut 
700 1 |a Xu, Bibo  |e verfasserin  |4 aut 
700 1 |a Xiang, Bobin  |e verfasserin  |4 aut 
700 1 |a Zhu, Lu  |e verfasserin  |4 aut 
700 1 |a Qiu, Lei  |e verfasserin  |4 aut 
700 1 |a Liu, Xiaoting  |e verfasserin  |4 aut 
700 1 |a Li, Caiting  |e verfasserin  |4 aut 
700 1 |a Zeng, Guangming  |e verfasserin  |4 aut 
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773 1 8 |g volume:36  |g year:2015  |g number:1-4  |g day:07  |g month:01  |g pages:470-8 
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