| 摘要 |
<p>A gasification system (10) and process for gasifying biomass solids. The system includes an auger pyrolysis reactor (16) that is fed with biomass solids. The biomass solids pass rapidly through the auger pyrolysis reactor in a thin film of agitated solids entrained in boiling water vapor and volatized organic matter. The pyrolysis products pass from the auger pyrolysis reactor directly to a cyclonic gasification reactor (28). Cyclonic motion of the pyrolysis products in the gasifier is induced by tangential introduction of air or oxygen. The entrained solids and pyrolysis gases are converted to fuel gases and tar, which are then fed to a cyclonic separator (36) that is operable as a second stage gasifier to further convert char. Fuel gases are separated and removed for subsequent processing while char is removed and supplied to a char burner (44) to produce process heat.</p> |
