Co-combustion of coal and olive oil industry residues in fluidised bed

L. Armesto (Corresponding Author), A. Bahillo, A. Cabanillas, Kati Veijonen, J. Otero, A. Plumed, L. Salvador

Research output: Contribution to journalArticleScientificpeer-review

86 Citations (Scopus)

Abstract

Recently new environmental regulations of fossil fuels have further increased interest in the use of waste and biomass for energy generation. Co-combustion is generally viewed as the most cost-effective approach to biomass and wastes utilisation by the electric utility industry.

The aim of this paper is to assess the feasibility of co-firing coal and a very specific biomass waste from the olive oil industry: foot cake, in a fluidised bed. This waste is quite difficult material to be used in combustion process, due to its high moisture content and alkaline content in ashes.

Two different Spanish coals were selected for this study: a lignite and an anthracite. The combustion tests were carried out in the CIEMAT bubbling fluidised bed pilot plant. In order to study the effect of different parameters on the emissions and combustion efficiency, the tests were done using different operating conditions: furnace temperature, share of foot cake in the mixtures and coal type.

The pilot plant tests show that the combustion of foot cake/lignite or anthracite mixtures in bubbling fluidised bed is one way to utilise this biomass residue in energy generation. The presence of foot cake in the mixtures has not any significant effect on the combustion efficiency. SO2 and NOx emissions decrease when the amount of foot cake in the mixtures increases, while N2O emission increases.

Original languageEnglish
Pages (from-to)993-1000
Number of pages8
JournalFuel
Volume82
Issue number8
DOIs
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed

Fingerprint

Olive oil
Coal
Biomass
Industry
Anthracite
Lignite
Pilot plants
Ashes
Waste utilization
Environmental regulations
Electric utilities
Fossil fuels
Coal ash
Olive Oil
Furnaces
Moisture
Costs

Keywords

  • co-combustion
  • fluidized bed combustion
  • fluidized beds
  • olive oil residues
  • olive oil
  • biomass

Cite this

Armesto, L., Bahillo, A., Cabanillas, A., Veijonen, K., Otero, J., Plumed, A., & Salvador, L. (2003). Co-combustion of coal and olive oil industry residues in fluidised bed. Fuel, 82(8), 993-1000. https://doi.org/10.1016/S0016-2361(02)00397-6
Armesto, L. ; Bahillo, A. ; Cabanillas, A. ; Veijonen, Kati ; Otero, J. ; Plumed, A. ; Salvador, L. / Co-combustion of coal and olive oil industry residues in fluidised bed. In: Fuel. 2003 ; Vol. 82, No. 8. pp. 993-1000.
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Armesto, L, Bahillo, A, Cabanillas, A, Veijonen, K, Otero, J, Plumed, A & Salvador, L 2003, 'Co-combustion of coal and olive oil industry residues in fluidised bed', Fuel, vol. 82, no. 8, pp. 993-1000. https://doi.org/10.1016/S0016-2361(02)00397-6

Co-combustion of coal and olive oil industry residues in fluidised bed. / Armesto, L. (Corresponding Author); Bahillo, A.; Cabanillas, A.; Veijonen, Kati; Otero, J.; Plumed, A.; Salvador, L.

In: Fuel, Vol. 82, No. 8, 2003, p. 993-1000.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Co-combustion of coal and olive oil industry residues in fluidised bed

AU - Armesto, L.

AU - Bahillo, A.

AU - Cabanillas, A.

AU - Veijonen, Kati

AU - Otero, J.

AU - Plumed, A.

AU - Salvador, L.

PY - 2003

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AB - Recently new environmental regulations of fossil fuels have further increased interest in the use of waste and biomass for energy generation. Co-combustion is generally viewed as the most cost-effective approach to biomass and wastes utilisation by the electric utility industry.The aim of this paper is to assess the feasibility of co-firing coal and a very specific biomass waste from the olive oil industry: foot cake, in a fluidised bed. This waste is quite difficult material to be used in combustion process, due to its high moisture content and alkaline content in ashes.Two different Spanish coals were selected for this study: a lignite and an anthracite. The combustion tests were carried out in the CIEMAT bubbling fluidised bed pilot plant. In order to study the effect of different parameters on the emissions and combustion efficiency, the tests were done using different operating conditions: furnace temperature, share of foot cake in the mixtures and coal type.The pilot plant tests show that the combustion of foot cake/lignite or anthracite mixtures in bubbling fluidised bed is one way to utilise this biomass residue in energy generation. The presence of foot cake in the mixtures has not any significant effect on the combustion efficiency. SO2 and NOx emissions decrease when the amount of foot cake in the mixtures increases, while N2O emission increases.

KW - co-combustion

KW - fluidized bed combustion

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KW - olive oil

KW - biomass

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DO - 10.1016/S0016-2361(02)00397-6

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JO - Fuel

JF - Fuel

SN - 0016-2361

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ER -

Armesto L, Bahillo A, Cabanillas A, Veijonen K, Otero J, Plumed A et al. Co-combustion of coal and olive oil industry residues in fluidised bed. Fuel. 2003;82(8):993-1000. https://doi.org/10.1016/S0016-2361(02)00397-6