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1.4.2.2 Circulating Fluidized Bed and Transport Bed Reactor
ОглавлениеCirculating fluidized bed pyrolysis reactors have similar properties as bubble pyrolysis reactors. Compared to the bubbling fluidized bed pyrolysis reactor, steam and char are formed faster due to higher gas velocities. Thus, the char content in bio-oil is higher. Circulating fluidized bed pyrolysis reactor should provide higher process capacity, better gas solid contact [59].
Table 1.2 Types of reactors used in pyrolysis.
| Reactor Type | Biomass | Temperature (°C) | Pressure (atm) | Biofuel Yield (%) | Reference |
|---|---|---|---|---|---|
| Circulating fluidized bed | Wood chips | 250 | 138 | 49.9 | [61] |
| Tubular quartz | Arthrospira platensis | 450 | NA | 29.9 | [62] |
| Circulating fluid bed reactor | Lignocellulosic biomass | 400-600 | 1.6-3.3 | 72 | [63] |
| Stirred semi-batch reactor | Municipal plastic wastes | 400 | 1 | 76 | [64] |
| Fluidized bed reactor | Coal and beechwood | 600 | NA | 46 | [65] |
| Double auger reactor | Hardwood | 1061 | NA | 62 | [66] |
| Downer fluidizer bed reactor | Lignocellulosic biomass | 500 | 1 | 49.9 | [67] |
| Spouted bed reactor | Lignocellulosic biomass | 450 | NA | 58.7 | [68] |
