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
Alkali enhanced biomass gasification with in situ S capture and novel syngas cleaning. Part 1: Gasifier performance
RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy. IVL Swedish Environmental Institute, Sweden.ORCID iD: 0000-0003-1806-4187
Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.
Show others and affiliations
2018 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 157, p. 96-105Article in journal (Refereed) Published
Abstract [en]

Previous research shows that alkali addition in entrained flow biomass gasification can increase char conversion and decrease tar and soot formation through catalysis. This paper investigates two other potential benefits of alkali addition: increased slag flowability and in situ sulfur capture. Thermodynamic equilibrium calculations show that addition of 2–8% alkali catalyst to biomass completely changes the chemical domain of the gasifier slag phase to an alkali carbonate melt with low viscosity. This can increase feedstock flexibility and improve the operability of an entrained flow biomass gasification process. The alkali carbonate melt also leads to up to 90% sulfur capture through the formation of alkali sulfides. The resulting reduced syngas sulfur content can potentially simplify gas cleaning required for catalytic biofuel production. Alkali catalyst recovery and recycling is a precondition for the economic feasibility of the proposed process and is effected through a wet quench. It is shown that the addition of Zn for sulfur precipitation in the alkali recovery loop enables the separation of S, Ca and Mg from the recycle. For high Si and Cl biomass feedstocks, an alternative separation technology for these elements may be required to avoid build-up.

Place, publisher, year, edition, pages
Elsevier Ltd , 2018. Vol. 157, p. 96-105
Keywords [en]
Alkali, Biomass gasification, Catalysis, Entrained flow, Slag, Biomass, Catalysts, Feedstocks, Precipitation (chemical), Recycling, Slags, Sulfur, Sulfur compounds, Synthesis gas, Biofuel production, Economic feasibilities, Separation technologies, Sulfur precipitation, Thermodynamic equilibrium calculation, Gasification, alkalinity, biofuel, carbonate, catalyst, chemical alteration, entrainment, feasibility study, gas, performance assessment, thermodynamics
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-39217DOI: 10.1016/j.energy.2018.05.097Scopus ID: 2-s2.0-85048465146OAI: oai:DiVA.org:ri-39217DiVA, id: diva2:1331981
Available from: 2019-06-27 Created: 2019-06-27 Last updated: 2023-05-16Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Furusjö, Erik

Search in DiVA

By author/editor
Furusjö, Erik
By organisation
Biorefinery and Energy
In the same journal
Energy
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 44 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