Research Article
Enrichment of Limestone Used in the Desulphurisation of Fluidised-Bed-Boiler Flue Gases
(a) Detailed composition of base raw substances [wt. %] |
| Oxides | Substance A: limestone | Substance B: Sorbacal SP | Substance C: Sorbacal H90 |
| CaO | 70.70 | 80.20 | 81.20 | MgO | 0.374 | 0.533 | 0.573 | SiO2 | 0.138 | 0.071 | 0.080 | Al2O3 | 0.091 | 0.036 | 0.050 | Fe2O3 | 0.052 | 0.058 | 0.066 | SrO | 0.041 | 0.036 | 0.040 | P2O5 | 0.037 | 0.017 | 0.017 | SO3 | 0.023 | 0.137 | 0.112 | K2O | 0.018 | 0.008 | 0.011 | MnO | 0.007 | 0.011 | 0.013 |
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(b) Detailed composition of calcined substances [wt. %, calcination at 850°C] |
| Oxides | Substance A: limestone | Substance B: Sorbacal SP | Substance C: Sorbacal H90 |
| CaO | 98.291 | 98.901 | 98.802 | MgO | 0.478 | 0.657 | 0.697 | SiO2 | 0.466 | 0.880 | 0.970 | Al2O3 | 0.283 | 0.450 | 0.600 | Fe2O3 | 0.191 | 0.720 | 0.820 | SrO | 0.039 | 0.450 | 0.490 | P2O5 | 0.016 | 0.200 | 0.200 | SO3 | 0.029 | 0.169 | 0.136 | K2O | 0.020 | 0.099 | 0.130 | MnO | 0.023 | 0.140 | 0.160 |
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