{HEAD ~ A method} 1, and further including the step of at least partial combustion of CO and {TAIL ~ H2} containing in flue gases above melt level in the inner chamber 
{ HEAD ~ A method } 1 , and further including the step of at least partial combustion of CO and { TAIL ~ H2 } containing in flue gases above melt level in the inner chamber
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH