HOUSTON, Aug 31 (Reuters) - Royal Dutch Shell Plcreturned the 16,500 barrel-per-day (bpd) alkylation unit tonormal operation on Friday at its 209,787 bpd Convent,Louisiana, refinery after a malfunction, said sources familiarwith plant operations.
A motor on the alky unit, which converts refining byproductsinto octane-boosting components of gasoline, lost power onThursday, causing the unit to trip out of production, thesources said.(Reporting by Erwin SebaEditing by Chizu Nomiyama)