Shell upset causes high flaring

An alert was issued by Shell Canada about an upset at its Corunna plant Thursday morning. The Aamjiwnaang Notification System says a cat cracker unit trip is causing high flaring and noise. A Chemical Valley Emergency Coordinating Organization notice was issued. --- Imperial says elevated flaring and noise is expected to continue for several more days at the Sarnia refinery while equipment repairs are made. Company spokesperson Kristina Zimmer said Wednesday afternoon that construction of scaffolding was complete, and a repair plan had been finalized that includes replacement of a line. She says efforts are being made to reduce flaring and noise where possible.