On initial startup {HEAD ~ the reactor} 70 is filled with {TAIL ~ a liquid reactant}, e.g. water, so that it overflows the outlet conduit 156 
is filled with
On initial startup { HEAD ~ the reactor } 70 is filled with { TAIL ~ a liquid reactant } , e.g. water , so that it overflows the outlet conduit 156
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH