September 2021

Special Focus: Refining Technology

Enhanced unit monitoring enabled by digital twin

Process engineers must continuously monitor the health and performance of process units.

Chellani, J., KBC, a Yokogawa Company; Winter, G., Alshaikh, A., Saudi Aramco

Process engineers must continuously monitor the health and performance of process units. Unit monitoring ensures reliable operation of the unit, identifies disturbances early in the cycle and improves the understanding of the process. In addition, effective unit monitoring results in the identification of short- and long-term economic opportunities. These opportunities typically reside in yield optimization, cost reduction and maximization of unit capacity. Unit engineers use key performance indicators (KPIs) to help define and measure progress toward the plant’s business and strategic goals. They facilitate the management process by focusing employees on the critical measures of the plant’

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