DOI: 10.1016/j.jcou.2018.10.019
Scopus记录号: 2-s2.0-85057024297
论文题名: Application of different carrying gases and ratio between sewage sludge and willow for engineered (smart) biochar production
作者: Kończak M. ; Oleszczuk P. ; Rózyło K.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2019
卷: 29 起始页码: 20
结束页码: 28
语种: 英语
英文关键词: Biochar
; Biomass
; Mixture
; Pyrolysis
; Sewage sludge
; Temperature
Scopus关键词: Biomass
; Mixtures
; Pyrolysis
; Sewage sludge
; Temperature
; Bio chars
; Electrical conductivity
; Elemental compositions
; Mineral composition
; Negative correlation
; Physicochemical property
; Process efficiency
; Pyrolysis temperature
; Carbon dioxide
英文摘要: We investigated the physicochemical properties of biochar produced at 500, 600, and 700 °C from sewage sludge (SSL) and SSL with willow (8:2 and 6:4, w/w). The effect of carrier gas type (N2 or CO2) on the biochars properties was examined. The pH, electrical conductivity (EC), specific surface area (SBET), elemental composition (CHNO), and mineral composition (XRD), as well as functional groups (FT-IR/PAS) were identified and determined. Replace the N2 by CO2 as carrier gas influenced the properties of the all produced biochars. CO2 had an effect on reducing the process efficiency as well as pH and EC in the SSL-derived biochars. Changes in the elemental composition (H and O content) were also noted after change of carrier gases. In the biochars obtained in a CO2, a negative correlation was found between EC and pyrolysis temperature. In the biochars produced from SSL and willow, apart from similar changes to those observed for the biochars made from SSL in the presence of CO2, changes in the surface properties were additionally noted. The biochar obtained in a CO2 atmosphere had higher SBET values (from 19 to 47%) than the respective biochars produced in an N2 atmosphere. © 2018 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117331
Appears in Collections: 气候变化与战略
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Recommended Citation:
Kończak M.,Oleszczuk P.,Rózyło K.. Application of different carrying gases and ratio between sewage sludge and willow for engineered (smart) biochar production[J]. Journal of CO2 Utilization,2019-01-01,29