The reactor is either a catalytic or non catalytic burner, or {HEAD ~ a fuel reformer} for converting {TAIL ~ a fuel} to hydrogen 
for converting
The reactor is either a catalytic or non catalytic burner , or { HEAD ~ a fuel reformer } for converting { TAIL ~ a fuel } to hydrogen
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH