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The impact of biomass feedstock composition and pre-treatments on tar formation during biomass gasification

The impact of biomass feedstock composition and pre-treatments on tar formation during biomass gasification
The impact of biomass feedstock composition and pre-treatments on tar formation during biomass gasification

Gasification is a favourable technology for distributed power generation. However, commercialisation and scale up have been hampered by problems associated with tar formation. Tars are detrimental to operational efficiency as they can condense downstream initiating corrosion and blockages, thus resulting in a reduction in an overall yield during the gasification process. So far there are two main routes to reduce tar formation, namely thermal tar cracking at higher gasification temperatures, or catalytic tar cracking by using different types of heterogeneous catalysts, depending on the reaction system's configuration. Nevertheless tar still represents a potential issue during gasification, therefore further studies have been focused on trying to find a relationship between biomass composition and tar formation and composition. In this chapter we discuss various alternatives for biomass pretreatment as a way to reduce tar formation during gasification through compositional manipulation. Engineering solutions provide a primary route to reduce tar formation, but further integrated processing offers increased system efficiently generated using tailored feedstocks. This may be achieved by harvesting energy or products from pre-treatment stages aimed at reducing tar formation and ash composition.

Biomass, Composition, Gasification, Multiple process integration, Pre-treatments, Syngas, Tar production
33-53
Wiley
Corton, John
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Paula, Blanco Sanchez P.
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Khan, Zakir
b52c661e-931e-43b9-bcb8-dfc43269761b
McCalmont, Jon Paul
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Yu, Xi
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Fletcher, George
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Croxton, Steve
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Sharp, James
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Paul, Manosh C.
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Watson I., Ian A.
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Donnison, Iain S.
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Singh, Lalit Kumar
Chaudhary, Gaurav
Corton, John
8bac73eb-4b6e-42b8-93e2-9008db993773
Paula, Blanco Sanchez P.
33f43bc4-a5a9-4a9a-aa8d-67543a81a9c0
Khan, Zakir
b52c661e-931e-43b9-bcb8-dfc43269761b
McCalmont, Jon Paul
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Yu, Xi
7e4f553f-cc11-4c6e-ad6d-9fb5c3c07a60
Fletcher, George
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Croxton, Steve
179d7d6c-c09f-40d7-9766-3c62255d8635
Sharp, James
ab38b2e0-100d-4128-b27a-1fe0435c8bf5
Paul, Manosh C.
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Watson I., Ian A.
5edf43b2-580f-4f4c-817c-0a33249d96da
Donnison, Iain S.
0f15f4ff-7296-4580-bdd2-d97cb1c24884
Singh, Lalit Kumar
Chaudhary, Gaurav

Corton, John, Paula, Blanco Sanchez P., Khan, Zakir, McCalmont, Jon Paul, Yu, Xi, Fletcher, George, Croxton, Steve, Sharp, James, Paul, Manosh C., Watson I., Ian A. and Donnison, Iain S. (2017) The impact of biomass feedstock composition and pre-treatments on tar formation during biomass gasification. In, Singh, Lalit Kumar and Chaudhary, Gaurav (eds.) Advances in Biofeedstocks and Biofuels: Biofeedstocks and Their Processing. Wiley, pp. 33-53. (doi:10.1002/9781119117322.ch2).

Record type: Book Section

Abstract

Gasification is a favourable technology for distributed power generation. However, commercialisation and scale up have been hampered by problems associated with tar formation. Tars are detrimental to operational efficiency as they can condense downstream initiating corrosion and blockages, thus resulting in a reduction in an overall yield during the gasification process. So far there are two main routes to reduce tar formation, namely thermal tar cracking at higher gasification temperatures, or catalytic tar cracking by using different types of heterogeneous catalysts, depending on the reaction system's configuration. Nevertheless tar still represents a potential issue during gasification, therefore further studies have been focused on trying to find a relationship between biomass composition and tar formation and composition. In this chapter we discuss various alternatives for biomass pretreatment as a way to reduce tar formation during gasification through compositional manipulation. Engineering solutions provide a primary route to reduce tar formation, but further integrated processing offers increased system efficiently generated using tailored feedstocks. This may be achieved by harvesting energy or products from pre-treatment stages aimed at reducing tar formation and ash composition.

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More information

Published date: 6 January 2017
Additional Information: Publisher Copyright: © 2016 Scrivener Publishing LLC. All rights reserved.
Keywords: Biomass, Composition, Gasification, Multiple process integration, Pre-treatments, Syngas, Tar production

Identifiers

Local EPrints ID: 481578
URI: http://eprints.soton.ac.uk/id/eprint/481578
PURE UUID: 957cd235-2d95-4a0d-93a7-a0625c5d9e44

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Date deposited: 04 Sep 2023 16:38
Last modified: 06 Jun 2024 02:19

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Contributors

Author: John Corton
Author: Blanco Sanchez P. Paula
Author: Zakir Khan
Author: Jon Paul McCalmont
Author: Xi Yu ORCID iD
Author: George Fletcher
Author: Steve Croxton
Author: James Sharp
Author: Manosh C. Paul
Author: Ian A. Watson I.
Author: Iain S. Donnison
Editor: Lalit Kumar Singh
Editor: Gaurav Chaudhary

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