A catalytic multi stage hydrocarbon conversion process is provided for reducing high metals content, sulfur content and pour point of the catalytically reacted residual oil by {HEAD ~ the use} of {TAIL ~ sequential combination} of catalytic compositions 
A catalytic multi stage hydrocarbon conversion process is provided for reducing high metals content , sulfur content and pour point of the catalytically reacted residual oil by { HEAD ~ the use } of { TAIL ~ sequential combination } of catalytic compositions
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