Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Pyrolysis study of hydrothermal carbonization-treated digested sewage sludge using a Py-GC/MS and a bench-scale pyrolyzer
KTH Royal Institute of Technology, Sweden.
RISE - Research Institutes of Sweden, Safety and Transport, Safety. KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
2019 (English)In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 262, article id 116335Article in journal (Refereed) Published
Abstract [en]

The disposal of digested sewage sludge is becoming a global problem. Hydrothermal carbonization (HTC) combined with the pyrolysis of digested sewage sludge was investigated by using a new conversion route for the exploitation of sewage sludge in energy applications. The thermochemical properties of the material were investigated by using HTC pre-treatments, thermogravimetric analyses, pyrolysis tests in Py-GC/MS and a bench-scale fixed bed reactor at temperatures of 450, 550, and 650 °C. It was found that the thermal decomposition of the hydrothermally treated digested sewage sludge takes place in a two-stage reaction. After pyrolysis, the ash in the sample was oxidized in the O2 atmosphere at 900 °C. Therefore, a new characterization method for determination of the non-oxdized ash content and fixed carbon content was proposed. The result from Py-GC/MS shows that the abundance of aromatic hydrocarbons in pyrolytic vapors present a positive correlation with increased temperature. In the bench-scale experiments, the highest HHV of the organic fraction was obtained at 650 °C as 38.46 MJ/kg. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2019. Vol. 262, article id 116335
Keywords [en]
Ash content determination, Biofuel, Digested sewage sludge, HTC, Pyrolysis, Aromatic hydrocarbons, Biofuels, Carbonization, Chemical analysis, Chemical reactors, Sewage sludge, Thermochemistry, Thermogravimetric analysis, Ash contents, Bench scale experiments, Characterization methods, Hydrothermal carbonization, Hydrothermally treated, Positive correlations, Thermochemical properties, Sludge disposal
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40920DOI: 10.1016/j.fuel.2019.116335Scopus ID: 2-s2.0-85075337995OAI: oai:DiVA.org:ri-40920DiVA, id: diva2:1376763
Note

Funding text 1: We want to thank the financial support from FORMAS- Swedish Research Council for Sustainable Development, Sweden . We are grateful for the C-Green AB, Sweden for supporting with the raw materials and knowledge. The cooperation with Envigas AB, Sweden is greatly appreciated as well. One of the authors, Shule Wang, acknowledge the financial support from the Chinese Scholarship Council (CSC). Appendix A

Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2020-01-10Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus
By organisation
Safety
In the same journal
Fuel
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 16 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.9