| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1514591 | Energy Procedia | 2009 | 8 Pages |
Abstract
This work focuses on the sulphur chemistry in oxy-fuel combustion of lignite. Comparison is made with air-fired conditions, and the main combustion products containing sulphur (ash, SO2, SO3 and H2S) are examined by modelling and experimental data. The conversion of fuel-S to SO2 is lower in oxy-fuel than in air-fuel conditions and the SO2 concentration per unit energy supplied is therefore reduced. The modelling shows that the SO3 concentration is about four times greater than the concentration in air-firing. High SO3 and H2O contents in the oxy-fuel flue gas during wet recycling increase the acid dew-point by 20 to 30Â K.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
Daniel Fleig, Fredrik Normann, Klas Andersson, Filip Johnsson, Bo Leckner,