Coal combustion in O2/CO2mixtures compared with air
- Resource Type
- Article
- Authors
- Croiset, Eric; Thambimuthu, Kelly; Palmer, Allan
- Source
- Canadian Journal of Chemical Engineering; April 2000, Vol. 78 Issue: 2 p402-407, 6p
- Subject
- Language
- ISSN
- 00084034; 1939019X
As part of CO2abatement strategies for climate change, we are investigating coal combusion behaviour in various O2/CO2mixtures and in air. The goal is to simulate conditions of coal combustion with flue gas recirculation in order to maximize the CO2concentration in the flue gas prior to its recovery. A western Canadian sub‐bituminous coal and a U.S. eastern bituminous coal were investigated. Thermal input was set at 0.21 MW with a flue gas oxygen concentration of 5 vol%. Experiments were done using various O2/CO2mixtures and air. The oxygen concentration ranged from 21% to 42%. Up to 95% CO2concentrations were achieved in the flue gas. This paper describes experimental results in terms of flame temperatures and pollutant emissions (NOx', SO2and CO).