The oxygenate feedstock of this invention comprises {HEAD ~ at least one organic compound} which contains {TAIL ~ at least one oxygen atom}, such as aliphatic alcohols, ethers, carbonyl compounds  
contains
The oxygenate feedstock of this invention comprises { HEAD ~ at least one organic compound } which contains { TAIL ~ at least one oxygen atom } , such as aliphatic alcohols , ethers , carbonyl compounds
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH