Research Article
Selection of an Inert Gas System for the Transportation of Direct Reduced Iron
Table 1
The gases in the content of inert gas and their characteristics.
| Property | Symbol | Ratio |
| Nitrogen | | 83% | Carbon dioxide | | 12–14% | Oxygen | | 2–4% | Sulfur dioxide | | 50 ppm | Carbon monoxide | | Trace | Nitrogen oxide | | Trace | Water vapour | | Trace (high if not dried) | Ash and soot | (C) | Traces | Density | | 1.044 |
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