Reactions take place in the pyrolysis chamber such that {HEAD ~ the gaseous stream} is converted to contain Syngas and {TAIL ~ a reduced amount} of carbon dioxide  
is converted to contain
Reactions take place in the pyrolysis chamber such that { HEAD ~ the gaseous stream } is converted to contain Syngas and { TAIL ~ a reduced amount } of carbon dioxide
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH