1. Steam Net Simulation at Borealis' Cracker Site in Stenungsund Presentation at Nordic Process Control Workshop 15, Porsgrunn 29 January 2009 Veronica Olesen

2. Solvina Göteborg Västerås

3. Power Engineering Process Engineering Automatic Control Chemical Engineering Computer Technology Mathematics Nuclear Power Safety Power Engineering Process Engineering Automatic Control Chemical Engineering Computer Technology Mathematics Nuclear Power Safety Solvina

4. Borealis Stenungsund

5. Ethylene HP steam LP steam from LD5 New

6. Cracker Steam Net From production Boilers To PE To processes Dump HP MP LP From LD5 New

7. Trip of LD5 From production Boilers To PE To processes Dump From LD5

8. Trip of LD5 From production Boilers To PE To processes Dump From LD5

9. Trip of LD5 From production Boilers To PE To processes Dump From LD5 ? ? ? Major pressure drops

10. Pressure Control From production Boilers To PE To processes Dump From LD5

11. Findings Restrictions necessary on the PE site to slow down the course of events.

12. Findings Restrictions necessary on the PE site to slow down the course of events. Use the same measuring point for all control loops in the LP net. PI

13. Findings Restrictions necessary on the PE site to slow down the course of events. Use the same measuring point for all control loops in the LP net. Feed forward needed in boiler control Acceptable pressure range t0t0

14. Findings Restrictions necessary on the PE site to slow down the course of events. Use the same measuring point for all control loops in the LP net. Feed forward needed in boiler control Dynamic simulations necessary prior to mayor changes.

15. Thank you for listening Questions? http://www.solvina.se/