Table 3. Characteristics of Syngas with Different Gasification Agents for Fixed-Bed Gasification44.
| gasifying agent | characteristics of syngas |
|---|---|
| air | moderate char and tar content |
| steam | high H2 content in syngas and high calorific value of syngas |
| carbon dioxide | high H2 and CO content in syngas, low CO2 content, and high calorific value of syngas |