NOx Reduction by Potassium-Containing Coal Briquettes. Effect of NO2 Concentration
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- 作者：Avelina Garcí ; a-Garcí ; a ; Marí ; a José ; Illá ; n-Gó ; mez ; Angel Linares-Solano ; and Concepció ; n Salinas-Martí ; nez de Lecea
- 刊名：Energy & Fuels
- 出版年：1999
- 出版时间：March 1999
- 年：1999
- 卷：13
- 期：2
- 页码：499 - 505
- 全文大小：134K
- 年卷期：v.13,no.2(March 1999)
- ISSN：1520-5029
文摘
The reactions of a potassium-containing bituminous coal briquette and the correspondingcatalyst-free char with different NO/O2 mixtures have been investigated at temperatures between300 and 325 
C. The isothermal reactions have been followed by two techniques: thermogravimetry and gas chromatography + chemiluminescence analysis. A NO/NO2 mixture rich in NO2results in a high carbon loss compared to that corresponding to the mixture poor in NO2. Despitethat, NOx conversion is similar for both mixtures. The extra weight loss in the presence of a highconcentration of NO2 is a consequence of NO2 reduction by carbon, producing NO and CO2evolution.
C. The isothermal reactions have been followed by two techniques: thermogravimetry and gas chromatography + chemiluminescence analysis. A NO/NO2 mixture rich in NO2results in a high carbon loss compared to that corresponding to the mixture poor in NO2. Despitethat, NOx conversion is similar for both mixtures. The extra weight loss in the presence of a highconcentration of NO2 is a consequence of NO2 reduction by carbon, producing NO and CO2evolution.