A process 1, wherein the hot formaldehyde containing product gas is cooled to {HEAD ~ a temperature} above {TAIL ~ the dew point} of the product gas in the waste heat boiler by the heat exchanging 
above
A process 1 , wherein the hot formaldehyde containing product gas is cooled to { HEAD ~ a temperature } above { TAIL ~ the dew point } of the product gas in the waste heat boiler by the heat exchanging
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH