The effluent stream produced is conveyed to a gas/liquid separator to separate H2 which is recycled to the alcohol synthesis zone as {HEAD ~ a second source} of {TAIL ~ H2} 
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The effluent stream produced is conveyed to a gas / liquid separator to separate H2 which is recycled to the alcohol synthesis zone as { HEAD ~ a second source } of { TAIL ~ H2 }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL