Removal of NOx by microwave reactor with ammonium bicarbonate and Ga-A zeolites at low temperature
| Autor: | Z.Y. Du, Zaishan Wei, H.M. He, Rongliang Qiu, Z.H. Lin |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Denitrification
Chemistry Mechanical Engineering Inorganic chemistry chemistry.chemical_element Building and Construction Molecular sieve Pollution Nitrogen Industrial and Manufacturing Engineering Catalysis chemistry.chemical_compound General Energy Ammonium bicarbonate Nitrogen oxide Electrical and Electronic Engineering Zeolite NOx Civil and Structural Engineering Nuclear chemistry |
| Zdroj: | Energy. 32:1455-1459 |
| ISSN: | 0360-5442 |
| Popis: | Microwave reactor with the mixture of ammonium bicarbonate (NH4HCO3) and Ga-A zeolites was set up to study the removal of nitrogen oxides (NOx) from waste gas with excess oxygen concentration (14–19%) at low temperature (80–120 °C). The results showed that the microwave reactor filled with NH4HCO3 and Ga-A zeolites could reduce NOx to nitrogen with the best purifying efficiency of 95.45% and the best denitrification amount of 89.28 mg h−1. The optimal microwave power and residence time (RT) on denitrification was 259–280 W and 0.259 s, respectively. Microwave denitrification effect of the experiment using ammonium bicarbonate and Ga-A zeolites was much higher than that using ammonium bicarbonate or Ga-A zeolites only. The mechanism for microwave-induced NOx reduction can be explained as the microwave-induced catalytic reaction between NOx and ammonium bicarbonate with Ga-A zeolites being the catalyst and microwave absorbent. |
| Databáze: | OpenAIRE |
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