Combining a high-level expert system with the DCS increased productivity and reduced losses
At AB Nynäs Petroleum's oil refinery in Nynäshamn, Sweden, an
advanced system has been implemented for supervising and managing
tank farm activities. The system provides better quality control,
compliance with the production schedule and operator support.
The system enables operators to remotely control activities in the
tank farm, e.g., change valve positions, start and stop agitators,
as well as monitor tank levels and handle alarms. It converts
levels to mass inventories and keeps track of oil movements. It
will supervise all oil movements and alert the operators if
inventory changes occur in tanks that have not been defined by a
transfer order. It assists the ta
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