The results of the demonstration project are summarized with particula
r reference to the final trial, on Scunthorpe's Queen Victoria furnace
. At Scunthorpe, attention to a range of operating parameters, particu
lary burden distribution control and oxygen enrichment levels allowed
brief periods of stable operation with a coal injection rate of 230 kg
/tHM and coke rates of 275-280 kg/tHM.