Disclosed is {HEAD ~ a catalytic method} for operating {TAIL ~ an oxygenate} to olefins conversion reaction to provide a substantial quantity of prime olefin in the product 
for operating
Disclosed is { HEAD ~ a catalytic method } for operating { TAIL ~ an oxygenate } to olefins conversion reaction to provide a substantial quantity of prime olefin in the product
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH