umu.sePublications
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
Cogasification of Crude Glycerol and Black Liquor Blends: Char Morphology and Gasification Kinetics
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
Show others and affiliations
2017 (English)In: Energy Technology, ISSN 2194-4288, Vol. 5, no 8, 1272-1281 p.Article in journal (Refereed) Published
Abstract [en]

In this study, we assessed the feasibility of black liquor/glycerol blends as a potential gasification feedstock. The char gasification reactivity and kinetics were studied at T=750, 800, 850, and 900 degrees C for 20 and 40% blends of glycerol with black liquor. Three qualities of glycerol were used including two industrial-grade crude glycerols. The gasification rates were similar for all blends; therefore, the alkali-metal catalysis is also sufficient for the char blends (alkali/C atomic ratio between 0.45 and 0.55). The blends with the most impure glycerol (containing K) had the lowest activation energies (approximate to 120 kJ mol(-1)) and reaction times for char gasification and, therefore, had fuel properties suitable for gasification. The char particles from different blends showed surface morphologies similar to those of black liquor chars with an even surface distribution of alkali elements. A loss of alkali (mainly K) from the fuel blends during pyrolysis indicated the necessity to perform gas-phase studies of alkali release. Overall, these results encourage the use of glycerol as a potential gasification feedstock for catalytic-gasification-based biorefineries.

Place, publisher, year, edition, pages
2017. Vol. 5, no 8, 1272-1281 p.
Keyword [en]
alkali metals, biomass, gasification, glycerol, kinetics
National Category
Bioenergy
Identifiers
URN: urn:nbn:se:umu:diva-139012DOI: 10.1002/ente.201600569ISI: 000407591200020OAI: oai:DiVA.org:umu-139012DiVA: diva2:1139001
Available from: 2017-09-06 Created: 2017-09-06 Last updated: 2017-09-06Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Broström, Markus
By organisation
Department of Applied Physics and Electronics
Bioenergy

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 1 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