The preferred mode for operating {HEAD ~ the novel process} of {TAIL ~ this invention} is to use a fixed bed of catalysts either in a two bed arrangement or in sequential catalyst stages in one bed 
The preferred mode for operating { HEAD ~ the novel process } of { TAIL ~ this invention } is to use a fixed bed of catalysts either in a two bed arrangement or in sequential catalyst stages in one bed
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH