Co-combustion of biomass and bituminous coal in a fluidized two-bed reactor

ABSTRACT

The combustion of hazelnut shells and bituminous coal was studied in a novel reactor with two disks, supporting two fluidized beds located one above the other. The reactor allows for the study of the impact of the fuels’ vertical arrangement in the combustion zone on SO₂ emission. The biomass and coal were combusted in separate beds or as a mixture. The gas species concentrations were measured. A major drop in the SO₂ coal emission was observed when the coal was combusted underneath the biomass bed, and a minor one, when above.

KEYWORDS:

• Biomass
• bituminous coal
• co-combustion
• fluidized bed
• hazelnut shells

Acknowledgments

The authors would like to thank Mr. Jacek Pasierb and Mr. Piotr Mondkiewicz (AGH) for the technical assistance.

Funding

This work was carried out with financial support from the AGH University of Science and Technology (D.S. no. 11.11.110.294/2015).

Additional information

Funding

This work was carried out with financial support from the AGH University of Science and Technology (D.S. no. 11.11.110.294/2015).