| Title | Sulphur neutralization by lignite ash: pilot-scale combustion experiments |
| Download | Downloads |
| Author | Brown, T D; Lee, G K; Bamborough, H A |
| Source | Canada Centre for Mineral and Energy Technology, Energy Research Program Report, Energy Research Laboratories 78-55 (J), 1978, 17 pages, https://doi.org/10.4095/302021 |
| Year | 1978 |
| Publisher | Energy, Mines and Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
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| Released | 1978 01 01; 2017 06 30 |
| Abstract | A pilot-scale research boiler (750 kg steam/h) was used to study the degree of sulphur neutralization during combustion experiments with three lignites. A series of four closely controlled experiments
showed that sulphur balances close to 100% could be achieved in the pilot-scale system burning Gascoyne lignite; the sulphur retained in solid phase residues varied between 21% and 24% of the input sulphur. With Utility lignite, external
recirculation of flue gas was moderately effective in reducing nitric oxide emissions, but led to increased carry-over of unburnt carbon. However, sulphur dioxide neutralization by coal-ash cations remained essentially unchanged as the recirculation
ratio increased. Enhancement of sulphur neutralization by dry lime addition to Poplar River lignite was effective only at addition rates above lime by weight. The effectiveness of the lime was found to increase as the excess-air level
increased. |
| GEOSCAN ID | 302021 |
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