Co-combustion of agricultural residues with coal in a fluidised bed combustor

• Main Authors: Wan Ab. Karim Ghani, Wan Azlina, Alias, Azil Bahari, Savory, Robert Michael, Cliffe, Keith R.
• Format: Article
• Language: English
• Published: Elsevier 2009
• Online Access: http://psasir.upm.edu.my/id/eprint/13617/1/Co-combustion%20of%20agricultural%20residues%20with%20coal%20in%20a%20fluidised%20bed%20combustor.pdf; http://psasir.upm.edu.my/id/eprint/13617/; https://www.sciencedirect.com/science/article/pii/S0956053X08001554?via%3Dihub#!

Power generation from biomass is an attractive technology that utilizes agricultural residual waste. In order to explain the behavior of biomass-fired fluidised bed incinerator, biomass sources from agricultural residues (rice husk and palm kernel) were co-fired with coal in a 0.15 m diameter and 2.3 m high fluidised bed combustor. The combustion efficiency and carbon monoxide emissions were studied and compared with those for pure coal combustion. Co-combustion of a mixture of biomass with coal in a fluidised bed combustor designed for coal combustion increased combustion efficiency up to 20% depending upon excess air levels. Observed carbon monoxide levels fluctuated between 200 and 900 ppm with the addition of coal. It is evident from this research that efficient co-firing of biomass with coal can be achieved with minimal modifications to existing coal-fired boilers.