Abstract
The aim of this work is to convert the low-rank Kilyos coal to a material that could be used as a nitrogenous fertilizer. Incorporation of nitrogen into this Kilyos coal was accomplished by oxidative ammoniation, which was a two-step process involving oxidation with nitric acid followed by a treatment by ammonia. The nitrogen content of the raw coal increased from 0.8% to 8.3–9.3% after ammoniation process. Trace element concentrations in the nitro-coal, humic acid, and oxy-ammoniated coal samples were within the acceptable ranges to be used as nitrogenous fertilizer. Therefore the oxy-ammoniated products could be considered as high-value fertilizers.
| Original language | English |
|---|---|
| Pages (from-to) | 164-170 |
| Number of pages | 7 |
| Journal | Energy Sources. Part A. Recovery, Utilization and Environmental Effects |
| Volume | 33 |
| Issue number | 2 |
| Publication status | Published - 2011 |
Keywords
- Humic acid
- Nitro-coal
- Nitrogeneous fertilizer
- oxy-ammoniated coal
- trace elements