Review Article
A Review of Intermediate Pyrolysis as a Technology of Biomass Conversion for Coproduction of Biooil and Adsorption Biochar
Table 1
Classification of pyrolysis processes [
29–
34].
| Property | Slow | Intermediate | Fast | Flash |
| Heating rate (°C/s) | 1.1–1 | 1–10 | 10–200 | >1000 | Feed size (mm) | 5–50 | 1–5 | <1 | <0.5 | Reaction temperature (°C) | 400–500 | 400–650 | 850–1250 | >1000 | Vapor residence time (s) | 300–550 | 0.5–20 | 0.5–10 | <1 | Feed water content (%) | Up to 40 | Up to 40 | <<10 | <<10 | Biooil yield (%) | 20–50 | 35–50 | 60–75 | 60–75 | Biochar yield (%) | 25–35 | 25–40 | 10–25 | 10–25 | Gas yield (%) | 20–50 | 20–30 | 10–30 | 10–30 |
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