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Sulfur fate during bituminous coal combustion in an oxy-fired circulating fluidized bed combustor
| Content Provider | Semantic Scholar |
|---|---|
| Author | Duan, Lunbo Zhou, Wu Li, Haixin Chen, Xiaoping Zhao, Changsui |
| Copyright Year | 2011 |
| Abstract | To clarify the sulfur transformation behavior during oxy-fired circulating fluidized bed (CFB) combustion, experiments on SO2 emission characteristics were carried out in a 50 kWth CFB combustor. Results show that SO2 emission is quite dependent on the bed temperature in different atmospheres without limestone injection. With Ca/S=2.5, SO2 emission in 21%O2/79%CO2 atmosphere is smaller than that in air atmosphere, but SO2 emission decreases with the increase of O2 concentration. The calcium forms in the ash prove the combination of calcination/carbonation and direct sulfation mechanism of limestone under oxy-combustion conditions. And the desulfurization efficiency of limestone (as deducting the self-retention efficiency from the total sulfur removal efficiency) increases from 40% to 52% as the O2 concentration increases from 21% to 40%. |
| Starting Page | 1952 |
| Ending Page | 1955 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s11814-011-0057-x |
| Volume Number | 28 |
| Alternate Webpage(s) | https://www.cheric.org/PDF/KJChE/KC28/KC28-9-1952.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s11814-011-0057-x |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
