Flexible TwoStage biomass gasifier designs for polygeneration operation

Rasmus Østergaard Gadsbøll*, Lasse Røngaard Clausen, Tobias Pape Thomsen, Jesper Ahrenfeldt, Ulrik Birk Henriksen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

As increasing amounts of wind and solar are integrated into the energy system, there is a growing need for the development of flexible and efficient biomass-based energy plants. Currently, a Polygeneration concept is being investigated: a system based on thermal biomass gasification and solid oxide cells that can either produce power or biofuels depending on the electricity prices. This study investigates gasifier design opportunities for large-scale and fuel flexible TwoStage concepts that only applies partialoxidation for tar conversion. Thermodynamic modeling is carried out for a total of 12 gasifier cases, featuring 3 main systems that each can process wood/straw and use air/oxygen. It was found that despite the varying operation conditions, process parameters remained relatively stable and that partial oxidation could be effectively applied as the only tar reducing measure. The systems all achieved high cold gas efficiencies of 84-88% and were found to be significantly more effective than competing technologies, while also obtaining higher fuel flexibility.
Original languageEnglish
JournalEnergy
Volume166
Pages (from-to)939-950
ISSN0360-5442
DOIs
Publication statusPublished - 2019

Keywords

  • Biomass gasification
  • Polygeneration
  • Thermodynamic analysis
  • Two-stage gasifier

Cite this

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title = "Flexible TwoStage biomass gasifier designs for polygeneration operation",
abstract = "As increasing amounts of wind and solar are integrated into the energy system, there is a growing need for the development of flexible and efficient biomass-based energy plants. Currently, a Polygeneration concept is being investigated: a system based on thermal biomass gasification and solid oxide cells that can either produce power or biofuels depending on the electricity prices. This study investigates gasifier design opportunities for large-scale and fuel flexible TwoStage concepts that only applies partialoxidation for tar conversion. Thermodynamic modeling is carried out for a total of 12 gasifier cases, featuring 3 main systems that each can process wood/straw and use air/oxygen. It was found that despite the varying operation conditions, process parameters remained relatively stable and that partial oxidation could be effectively applied as the only tar reducing measure. The systems all achieved high cold gas efficiencies of 84-88{\%} and were found to be significantly more effective than competing technologies, while also obtaining higher fuel flexibility.",
keywords = "Biomass gasification, Polygeneration, Thermodynamic analysis, Two-stage gasifier",
author = "Gadsb{\o}ll, {Rasmus {\O}stergaard} and Clausen, {Lasse R{\o}ngaard} and Thomsen, {Tobias Pape} and Jesper Ahrenfeldt and Henriksen, {Ulrik Birk}",
year = "2019",
doi = "10.1016/j.energy.2018.10.144",
language = "English",
volume = "166",
pages = "939--950",
journal = "Energy",
issn = "0360-5442",
publisher = "Elsevier",

}

Flexible TwoStage biomass gasifier designs for polygeneration operation. / Gadsbøll, Rasmus Østergaard; Clausen, Lasse Røngaard; Thomsen, Tobias Pape; Ahrenfeldt, Jesper; Henriksen, Ulrik Birk.

In: Energy, Vol. 166, 2019, p. 939-950.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Flexible TwoStage biomass gasifier designs for polygeneration operation

AU - Gadsbøll, Rasmus Østergaard

AU - Clausen, Lasse Røngaard

AU - Thomsen, Tobias Pape

AU - Ahrenfeldt, Jesper

AU - Henriksen, Ulrik Birk

PY - 2019

Y1 - 2019

N2 - As increasing amounts of wind and solar are integrated into the energy system, there is a growing need for the development of flexible and efficient biomass-based energy plants. Currently, a Polygeneration concept is being investigated: a system based on thermal biomass gasification and solid oxide cells that can either produce power or biofuels depending on the electricity prices. This study investigates gasifier design opportunities for large-scale and fuel flexible TwoStage concepts that only applies partialoxidation for tar conversion. Thermodynamic modeling is carried out for a total of 12 gasifier cases, featuring 3 main systems that each can process wood/straw and use air/oxygen. It was found that despite the varying operation conditions, process parameters remained relatively stable and that partial oxidation could be effectively applied as the only tar reducing measure. The systems all achieved high cold gas efficiencies of 84-88% and were found to be significantly more effective than competing technologies, while also obtaining higher fuel flexibility.

AB - As increasing amounts of wind and solar are integrated into the energy system, there is a growing need for the development of flexible and efficient biomass-based energy plants. Currently, a Polygeneration concept is being investigated: a system based on thermal biomass gasification and solid oxide cells that can either produce power or biofuels depending on the electricity prices. This study investigates gasifier design opportunities for large-scale and fuel flexible TwoStage concepts that only applies partialoxidation for tar conversion. Thermodynamic modeling is carried out for a total of 12 gasifier cases, featuring 3 main systems that each can process wood/straw and use air/oxygen. It was found that despite the varying operation conditions, process parameters remained relatively stable and that partial oxidation could be effectively applied as the only tar reducing measure. The systems all achieved high cold gas efficiencies of 84-88% and were found to be significantly more effective than competing technologies, while also obtaining higher fuel flexibility.

KW - Biomass gasification

KW - Polygeneration

KW - Thermodynamic analysis

KW - Two-stage gasifier

U2 - 10.1016/j.energy.2018.10.144

DO - 10.1016/j.energy.2018.10.144

M3 - Journal article

VL - 166

SP - 939

EP - 950

JO - Energy

JF - Energy

SN - 0360-5442

ER -