© 2006 Rosemount Inc. All rights reserved For more information: www.rosemount.com REFINING Advanced Diagnostics in a Pressure Transmitter Avoids Process Shutdown in a Refinery ROSEMOUNT 3051S Figure 1: Aeration point in the regenerated catalyst standpipe of a refinery FCC unit. Early warning of a process upset allowed operators to take corrective action to control the process and avoid a shutdown. RESULTS • Avoided shutdown and lost production costs of up to $1M per day • Improved throughput • Increased plant availability APPLICATION Catalyst circulation in an aerated standpipe of the Fluidized Catalytic Cracker (FCC) unit CUSTOMER Exxon Mobil CHALLENGE In an FCC unit at a refinery, one critical variable in maintaining the process is adequate circulation in regeneration catalyst

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