Decomposition of nitrogen oxide (N2O) over limestone under fluidized bed combustion conditions
โ Scribed by Shimizu, Tadaaki; Inagaki, Makoto
- Book ID
- 126427356
- Publisher
- American Chemical Society
- Year
- 1993
- Tongue
- English
- Weight
- 845 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0887-0624
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The decomposition of NO and N20 by chars has been studied in a fixed bed reactor under steady state conditions. The reactions were studied at temperatures from 673 to 1223 K and at partial NO and N20 pressures in the range of 0.62-3.08 and 0.19-1.92 mbar, respectively. The reactor pressure was 2.5 b
During coal gasification, the removal of H 2 S from the hot product gases using limestone generates calcium sulfide, a potentially hazardous chemical requiring treatment before disposal. One approach is to convert the CaS to CaSO 4 via oxidation in a topping cycle pressurized fluidized bed combustio
## Combustion (burners, combustion systems) emission calculated using this unsteady flamelet model is relatively close to measurements available from a previous study, while steady flamelets overpredict the NO emission by an order of magnitude.
sulfur retention by limestone (CaCOa) under fluidized bed combustion conditions is the net effect of a competition between sulfur capture and sulfur release during which the composition of the Ca surface changes continuously between CaO, CaS and C&04, the ultimate product being CaSO4. The presence o