The waste heat can be efficiently recovered without deposition of paraformaldehyde on the heat transfer surface of heat exchanger and {HEAD ~ the amount} of {TAIL ~ additional steam} can be reduced or made entirely zero 
The waste heat can be efficiently recovered without deposition of paraformaldehyde on the heat transfer surface of heat exchanger and { HEAD ~ the amount } of { TAIL ~ additional steam } can be reduced or made entirely zero
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 REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH