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Key phases in uncarbonated and carbonated biomass ashes of three types.
| Phases | Mixed wood dust | Nut shell | Wood shavings | |||
|---|---|---|---|---|---|---|
| Uncarbonated | Carbonated | Uncarbonated | Carbonated | Uncarbonated | Carbonated | |
| Portlandite | √ | √ | √ | |||
| Periclase | √ | √ | √ | |||
| Calcite | √ | √ | √ | |||
| Monohydrocarbonate | √ | √ | ||||
| Calcium oxide | √ | √ | ||||
| Calcium hydroxide | √ | √ | ||||
