Table 6: Process parameter variation of second experimental campaign in V2.

Experimental goals	Varied process parameters
Minimum secondary volume flow; Formation of recirculation cell; Formation of spouted bed	Feedstock Coke Primary gas composition N2, CO2, O2 Primary gas flow in m3/h(STP) 6.0-11.0 Secondary gas composition N2, CO2, O2 Secondary gas flow in m3/h(STP) 6.00-9.00 Stoichiometric air ratio 0.27-0.39 Total steam/O2-ratio or CO2/O2-ratio in kg/m3(STP) 2.64-3.30
High carbon conversion; Low wall temperatures	Feedstock Coke Primary gas composition N2, CO2 /H2O, O2 Primary gas flow in m3/h(STP) 6.75-7.00 Secondary gas composition N2, CO2/H2O, O2 Secondary gas flow in m3/h(STP) 6.75-7.50 Stoichiometric air ratio 0.39-0.46 Total steam/O2-ratio or CO2/O2-ratio in kg/m3(STP) 2.88-3.14
Ash agglomeration	Feedstock Mixture coke/lignite Primary gas composition N2, CO2 /H2O, O2 Primary gas flow in m3/h(STP) 9.00 Secondary gas composition N2, CO2/H2O, O2 Secondary gas flow in m3/h(STP) 6.75 Stoichiometric air ratio 0.42 Total steam/O2-ratio or CO2/O2-ratio in kg/m3(STP) 2.49