November 2022

Process Optimization

Implement advanced level control techniques to improve crude distillation unit stabilizer performance

The performance of refinery operations depends on the stable operation of the plant.

Mandal, K. K., Nayara Energy Ltd.

The performance of refinery operations depends on the stable operation of the plant. The primary crude distillation unit (CDU) generates a lighter component from its overhead and processes it into a stabilizer to separate liquified petroleum gas (LPG) and naphtha components. Therefore, any operational improvement leads to improved refinery margins by improving the product quality and optimizing the reboiler heat duty. The capacity of a particular CDU was 18 MMtpy, and it processes different types of crude with sulfur levels of 1 wt%–3 wt%. The production of LPG and naphtha varies depending on the type of crude processed. The overhead vapor from the CDU is cooled and routed to the overhead r

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