The methanol is then contacted with {HEAD ~ the second CO stream} in the presence of an alkali or alkaline earth metal catalyst and water under conditions sufficient to produce alkyl formate and {TAIL ~ H2} 
The methanol is then contacted with { HEAD ~ the second CO stream } in the presence of an alkali or alkaline earth metal catalyst and water under conditions sufficient to produce alkyl formate and { TAIL ~ H2 }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL