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Shell Norco, Louisiana, refinery restarting coker after power outage -sources

HOUSTON, April 2 (Reuters) - A brief loss of power forced Royal Dutch Shell Plc to shut the coker at its 225,300 barrel-per-day (bpd) Norco, Louisiana, refinery early on Thursday, said sources familiar with plant operations.

Shell is working to restart the 25,000 bpd coker, which was shut shortly after 1 a.m. CDT (0600 GMT) on Thursday. The coker converts residual crude oil from distillation units into feedstock for motor fuels or petroleum coke, a coal substitute. (Reporting by Erwin Seba Editing by Chizu Nomiyama)