Sept 24 (Reuters) - Royal Dutch Shell Plc took thegasoline-producing unit out of production at its218,200-barrel-per-day (bpd) Norco, Louisiana, refineryfollowing a malfunction on Monday, said sources familiar withplant operations.
The gasoline-producing catalytic cracking unit was oncirculation while repairs are being made, the sources said.
A unit on circulation is not producing product, but remainsat operating temperature and is circulating feed so it canquickly resume normal operation.(Reporting by Erwin Seba in Houston; Editing by Peter Cooney)