The MAGNUS facility is a pilot scale plant for demonstration in industrially relevant process conditions, consisting of three fluidized bed reactors. Its special design allows for switching between different configurations of interconnection of the gas and solid flows, hence giving the possibility to investigate a number of single and dual fluidized bed processes on a single facility (e.g. combustion, gasification, solid looping CO2 capture).
Reactors
All reactors are refractory lined. Reactors 1 and 2 are equipped with bayonet coolers and bed coolers.
Reactor 1
| Fluidized bed: | Bubbling up to circulating |
| Operating mode: | Combustion and gasification |
| Temperature: | 600-900 °C |
| Height: | 6 m |
| Thermal input: | 100-230 kWth |
Reactor 2
| Fluidized bed: | Circulating |
| Temperature: | 600-700 °C |
| Height: | 10 m |
| Gas preheating: | 600 °C |
Reactor 3
| Fluidized bed: | Circulating |
| Operating mode: | Combustion |
| Temperature: | 850-950 °C |
| Height: | 10 m |
| Thermal input: | 100-330 kWth |
Configuration
Depending on their task all reactors are equipped with:
Dosing units (reactor 1 + 3):
- Solid fuels (e.g. wood, coal)
- Auxiliary materials (e.g. limestone, sand)
Gas supply:
- Feeding of different gas types (air, steam, N2, O2, CO2)
- Oxidant staging
- Gas preheating
Gas treatment:
- Cyclone
- Bag filter
- Quench
- Gas cooler
- Flare
Data acquisition and control:
The facility is equipped with a PLC-based process control system. It is controlled by means of three workstations with various screens for process operation. Furthermore, the process control system logs more than 1000 measured values, most importantly:
- Pressures and temperatures within the reactors and all gas and solids lines
- Gas flows
- Solid flows
- Gas concentrations
Processes
Currently there are three processes under investigation:
- Calcium Looping (CCS)
- SER Gasification (Gasification)
- Oxyfuel-combustion (CCS)
Contact
Jörg Maier
Dipl.-Ing.Head of Department Firing Systems (KWF)