Logical Use Safety System Ratings in the Design of Hydraulic Valve Actuator Systems for FCCUs and DCUs

Presented By

Phillip Black - BLAC Inc.

Conference: Budapest 2017

Recent years we have seen more requests for SIL rated systems, but have found that they are not applied evenly or accurately for the intended functional protection in the refinery. FCCU applications are different than the delayed coker, but continuous versus batch operations are considered the same with respect to the operation of the valve. We would like to provide some realistic guidelines that can be followed for the application of SIL levels in these two units with respect to what is a critical operation and when and what level of SIL is required.

Refining Community