Co-fuelling of peat with meat and bone meal in a pilot scale bubbling bed reactor

K. McDonnell, E. J. Cummings, C. C. Fagan (Corresponding Author), Markku Orjala

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

Co-combustion performance trials of Meat and Bone Meal (MBM) and peat were conducted using a bubbling fluidized bed (BFB) reactor. In the combustion performance trials the effects of the co-combustion of MBM and peat on flue gas emissions, bed fluidization, ash agglomeration tendency in the bed and the composition and quality of the ash were studied. MBM was mixed with peat at 6 levels between 15% and 100%. Emissions were predominantly below regulatory limits. CO concentrations in the flue gas only exceeded the 100 mg/m3 limit upon combustion of pure MBM. SO2 emissions were found to be over the limit of 50 mg/m3, while in all trials NOx emissions were below the limit of 300 mg/m3. The HCl content of the flue gases was found to vary near the limit of 30 mg/m3. VOCs however were within their limits. The problem of bed agglomeration was avoided when the bed temperature was about 850 °C and only 20% MBM was co-combusted. This study indicates that a pilot scale BFB reactor can, under optimum conditions, be operated within emission limits when MBM is used as a co-fuel with peat. This can provide a basis for further scale-up development work in industrial scale BFB applications.
Original languageEnglish
Pages (from-to)1369-1382
JournalEnergies
Volume3
Issue number7
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Fingerprint

Fueling
Peat
Meats
Bone
Reactor
Ashes
Combustion
Fluidized Bed
Flue gases
Fluidized beds
Agglomeration
Fluidization
Scale-up
Volatile organic compounds
Gas emissions
Vary
Chemical analysis
Gas

Keywords

  • Bubbling bed reactor
  • Meat & bone meal
  • Co-combustion
  • Flue gas emissions
  • Peat

Cite this

McDonnell, K., Cummings, E. J., Fagan, C. C., & Orjala, M. (2010). Co-fuelling of peat with meat and bone meal in a pilot scale bubbling bed reactor. Energies, 3(7), 1369-1382. https://doi.org/10.3390/en3071369
McDonnell, K. ; Cummings, E. J. ; Fagan, C. C. ; Orjala, Markku. / Co-fuelling of peat with meat and bone meal in a pilot scale bubbling bed reactor. In: Energies. 2010 ; Vol. 3, No. 7. pp. 1369-1382.
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McDonnell, K, Cummings, EJ, Fagan, CC & Orjala, M 2010, 'Co-fuelling of peat with meat and bone meal in a pilot scale bubbling bed reactor', Energies, vol. 3, no. 7, pp. 1369-1382. https://doi.org/10.3390/en3071369

Co-fuelling of peat with meat and bone meal in a pilot scale bubbling bed reactor. / McDonnell, K.; Cummings, E. J.; Fagan, C. C. (Corresponding Author); Orjala, Markku.

In: Energies, Vol. 3, No. 7, 2010, p. 1369-1382.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Cummings, E. J.

AU - Fagan, C. C.

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AB - Co-combustion performance trials of Meat and Bone Meal (MBM) and peat were conducted using a bubbling fluidized bed (BFB) reactor. In the combustion performance trials the effects of the co-combustion of MBM and peat on flue gas emissions, bed fluidization, ash agglomeration tendency in the bed and the composition and quality of the ash were studied. MBM was mixed with peat at 6 levels between 15% and 100%. Emissions were predominantly below regulatory limits. CO concentrations in the flue gas only exceeded the 100 mg/m3 limit upon combustion of pure MBM. SO2 emissions were found to be over the limit of 50 mg/m3, while in all trials NOx emissions were below the limit of 300 mg/m3. The HCl content of the flue gases was found to vary near the limit of 30 mg/m3. VOCs however were within their limits. The problem of bed agglomeration was avoided when the bed temperature was about 850 °C and only 20% MBM was co-combusted. This study indicates that a pilot scale BFB reactor can, under optimum conditions, be operated within emission limits when MBM is used as a co-fuel with peat. This can provide a basis for further scale-up development work in industrial scale BFB applications.

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