Abstract
The effects of various combustion conditions (i.e. particle size of coals, oxygen concentration in combustion gas and coal content in the fuel bed, etc.), on reducing conversion of NOx during coal combustion were studied. Under the present combustion conditions, coals with smaller particle size gave the lower conversion of NOx, and as expected that an decrease in overall stoichiometric ratio, whether by an decrease in O2 content in combustion gas or by an increase in coal content in fuel bed would lead to a lower conversion of NOx. In order to investigate the effect of metallic oxide layers on restraining NOx formation, the combustion experiments for coal granules with adhering layer of various metallic oxides including Fe2O3, Ni2O3 and mixed oxides Fe-Ni-Ox were conducted in a packed bed combustor. The combustion experiments have shown that most of adhering materials gave considerable effect on reduction of NOx emission during coal combustion.
| Original language | English |
|---|---|
| Pages (from-to) | 70-74 |
| Journal | Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed) |
| Volume | 5 |
| Issue number | 2 |
| Publication status | Published - 1998 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- Coal combustion
- Metallic oxide
- Nox formation
- Restraining