September 2021

Process Optimization

Implementation of advanced level control techniques in refinery operations

Plant performance depends on stable operations, with steady feed, product flow, temperature and pressure control as per process requirements.

Mandal, K. K., Nayara Energy Ltd.

Plant performance depends on stable operations, with steady feed, product flow, temperature and pressure control as per process requirements. Plant performance can be improved further by stabilizing column and vessel levels through suitable level control techniques. The residue fluid catalytic cracking unit (RFCCU) is one of the most important secondary processing units to increase refining margins. RFCCU margins depend on uninterrupted operations and the best possible product yield. This is accomplished by keeping unit severity steady and maintaining the fractionation of product without quality giveaways or failures. Any identified deviation from stable operations (e.g., temperature, pressu

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