Circulating fluidised bed co-combustion of coal and biomass

Pilar Gayan, Juan Adanez (Corresponding Author), Luis F. de Diego, Francisco Garcia-Labiano, Andres Cabanillas, Alberto Bahillo, Martti Aho, Kati Veijonen

Research output: Contribution to journalArticleScientificpeer-review

71 Citations (Scopus)

Abstract

Circulating fluidised bed combustion (CFBC) is receiving wide research attention in view its potential as an economic and environmentally acceptable technology for burning low-grade coals, biomass and organic wastes, and thereby mixtures of them. Designs of the existing fluidised bed boilers for biomass combustion are mainly based on experience from coal combustion because the mechanism of combustion of biomass in fluidised beds is still not well understood. A good understanding of the combustion and pollutant formation processes and the modelling of the combustor can greatly avoid costly upsets of the plants.

In this paper, the performance of CFBC burning coal and biomass mixtures was analysed. Experimental results were obtained from the combustion of two kinds of coal with a forest residue (Pine bark) in two CFB pilot plants (0.1 and 0.3 MWth). The effect of the main operating conditions on carbon combustion efficiency was analysed. Moreover, a mathematical model to predict the behaviour of the co-combustion of coal and biomass wastes in CFB boilers has been developed and validated. The developed model can predict the different gas concentrations along the riser (O2, CO, CH4, etc.), and the carbon combustion efficiency. The experimental results of carbon combustion efficiencies were compared with those predicted by the model and a good correlation was found for all the conditions used.

Original languageEnglish
Pages (from-to)277 - 286
Number of pages10
JournalFuel
Volume83
Issue number3
DOIs
Publication statusPublished - 2004
MoE publication typeA1 Journal article-refereed

Fingerprint

Coal
Biomass
Carbon
Boilers
Coal combustion
Carbon Monoxide
Combustors
Pilot plants
Gases
Mathematical models

Keywords

  • co-firing
  • circulating fluidized beds
  • fluidized bed combustion
  • fluidized beds
  • mathematical modelling

Cite this

Gayan, P., Adanez, J., de Diego, L. F., Garcia-Labiano, F., Cabanillas, A., Bahillo, A., ... Veijonen, K. (2004). Circulating fluidised bed co-combustion of coal and biomass. Fuel, 83(3), 277 - 286. https://doi.org/10.1016/j.fuel.2003.08.003
Gayan, Pilar ; Adanez, Juan ; de Diego, Luis F. ; Garcia-Labiano, Francisco ; Cabanillas, Andres ; Bahillo, Alberto ; Aho, Martti ; Veijonen, Kati. / Circulating fluidised bed co-combustion of coal and biomass. In: Fuel. 2004 ; Vol. 83, No. 3. pp. 277 - 286.
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abstract = "Circulating fluidised bed combustion (CFBC) is receiving wide research attention in view its potential as an economic and environmentally acceptable technology for burning low-grade coals, biomass and organic wastes, and thereby mixtures of them. Designs of the existing fluidised bed boilers for biomass combustion are mainly based on experience from coal combustion because the mechanism of combustion of biomass in fluidised beds is still not well understood. A good understanding of the combustion and pollutant formation processes and the modelling of the combustor can greatly avoid costly upsets of the plants.In this paper, the performance of CFBC burning coal and biomass mixtures was analysed. Experimental results were obtained from the combustion of two kinds of coal with a forest residue (Pine bark) in two CFB pilot plants (0.1 and 0.3 MWth). The effect of the main operating conditions on carbon combustion efficiency was analysed. Moreover, a mathematical model to predict the behaviour of the co-combustion of coal and biomass wastes in CFB boilers has been developed and validated. The developed model can predict the different gas concentrations along the riser (O2, CO, CH4, etc.), and the carbon combustion efficiency. The experimental results of carbon combustion efficiencies were compared with those predicted by the model and a good correlation was found for all the conditions used.",
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Gayan, P, Adanez, J, de Diego, LF, Garcia-Labiano, F, Cabanillas, A, Bahillo, A, Aho, M & Veijonen, K 2004, 'Circulating fluidised bed co-combustion of coal and biomass', Fuel, vol. 83, no. 3, pp. 277 - 286. https://doi.org/10.1016/j.fuel.2003.08.003

Circulating fluidised bed co-combustion of coal and biomass. / Gayan, Pilar; Adanez, Juan (Corresponding Author); de Diego, Luis F.; Garcia-Labiano, Francisco; Cabanillas, Andres; Bahillo, Alberto; Aho, Martti; Veijonen, Kati.

In: Fuel, Vol. 83, No. 3, 2004, p. 277 - 286.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Circulating fluidised bed co-combustion of coal and biomass

AU - Gayan, Pilar

AU - Adanez, Juan

AU - de Diego, Luis F.

AU - Garcia-Labiano, Francisco

AU - Cabanillas, Andres

AU - Bahillo, Alberto

AU - Aho, Martti

AU - Veijonen, Kati

PY - 2004

Y1 - 2004

N2 - Circulating fluidised bed combustion (CFBC) is receiving wide research attention in view its potential as an economic and environmentally acceptable technology for burning low-grade coals, biomass and organic wastes, and thereby mixtures of them. Designs of the existing fluidised bed boilers for biomass combustion are mainly based on experience from coal combustion because the mechanism of combustion of biomass in fluidised beds is still not well understood. A good understanding of the combustion and pollutant formation processes and the modelling of the combustor can greatly avoid costly upsets of the plants.In this paper, the performance of CFBC burning coal and biomass mixtures was analysed. Experimental results were obtained from the combustion of two kinds of coal with a forest residue (Pine bark) in two CFB pilot plants (0.1 and 0.3 MWth). The effect of the main operating conditions on carbon combustion efficiency was analysed. Moreover, a mathematical model to predict the behaviour of the co-combustion of coal and biomass wastes in CFB boilers has been developed and validated. The developed model can predict the different gas concentrations along the riser (O2, CO, CH4, etc.), and the carbon combustion efficiency. The experimental results of carbon combustion efficiencies were compared with those predicted by the model and a good correlation was found for all the conditions used.

AB - Circulating fluidised bed combustion (CFBC) is receiving wide research attention in view its potential as an economic and environmentally acceptable technology for burning low-grade coals, biomass and organic wastes, and thereby mixtures of them. Designs of the existing fluidised bed boilers for biomass combustion are mainly based on experience from coal combustion because the mechanism of combustion of biomass in fluidised beds is still not well understood. A good understanding of the combustion and pollutant formation processes and the modelling of the combustor can greatly avoid costly upsets of the plants.In this paper, the performance of CFBC burning coal and biomass mixtures was analysed. Experimental results were obtained from the combustion of two kinds of coal with a forest residue (Pine bark) in two CFB pilot plants (0.1 and 0.3 MWth). The effect of the main operating conditions on carbon combustion efficiency was analysed. Moreover, a mathematical model to predict the behaviour of the co-combustion of coal and biomass wastes in CFB boilers has been developed and validated. The developed model can predict the different gas concentrations along the riser (O2, CO, CH4, etc.), and the carbon combustion efficiency. The experimental results of carbon combustion efficiencies were compared with those predicted by the model and a good correlation was found for all the conditions used.

KW - co-firing

KW - circulating fluidized beds

KW - fluidized bed combustion

KW - fluidized beds

KW - mathematical modelling

U2 - 10.1016/j.fuel.2003.08.003

DO - 10.1016/j.fuel.2003.08.003

M3 - Article

VL - 83

SP - 277

EP - 286

JO - Fuel

JF - Fuel

SN - 0016-2361

IS - 3

ER -

Gayan P, Adanez J, de Diego LF, Garcia-Labiano F, Cabanillas A, Bahillo A et al. Circulating fluidised bed co-combustion of coal and biomass. Fuel. 2004;83(3):277 - 286. https://doi.org/10.1016/j.fuel.2003.08.003