The result of this flow behavior is {HEAD ~ sub optimal oxidation} of the hydrocarbons released by {TAIL ~ the adsorber} 
The result of this flow behavior is { HEAD ~ sub optimal oxidation } of the hydrocarbons released by { TAIL ~ the adsorber }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL