Pressure Swing Absorber Utilization Improvement
BKOAI implemented advanced process control improvements and automated valve-reset logic to increase the utilization, stability, and reliability of the pressure swing system
Goals
- Increase the overall utilization rate of the pressure swing absorber unit.
- Enhance process control stability during standard and transitional operations.
- Minimize operational limitations that restrict daily absorption capacity.
- Establish a reliable foundation for continuous and stable gas separation.
Challenges
- Control limitations constrained the pressure swing absorber from reaching full operational utilization.
- Suboptimal control behavior caused performance bottlenecks during crucial operating transitions.
- Outdated split-range logic created unnecessary restrictions on system responsiveness and stability.
- Manual or inefficient valve reset procedures delayed recovery during unexpected unit trips.
Solutions
- Implemented advanced process control improvements to stabilize the absorber unit.
- Adjusted control loop tuning to optimize overall system responsiveness and stability.
- Modified split-range logic to eliminate existing operating constraints during transitions.
- Programmed automatic valve reset logic to streamline recovery during unit trips.
Results
- Achieved higher pressure swing absorber utilization rates across all operational phases.
- Demonstrated significant improvements in loop control stability under diverse conditions.
- Secured more reliable operating performance during critical unit transitions.
- Reduced process variability and unexpected downtime caused by valve reset delays.
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