What are some typical challenges faced by refinery advanced process control engineers in optimizing plant performance?

Refinery Advanced Process Control (APC) Engineers often encounter challenges such as integrating control systems with legacy infrastructure, managing process variability, and balancing multiple objectives like throughput, energy efficiency, and product quality. They must troubleshoot and fine-tune complex models, adapt to frequent changes in feedstock, and ensure their solutions are robust and scalable. Collaboration with operations, maintenance, and IT teams is essential to successfully implement and sustain APC strategies, making strong communication and problem-solving skills important for overcoming these challenges.