1. P&ID Safety Case Study Texas City Refinery Disaster
Narrated by Kevin Lin and Eric Gauthier

2. Plant Background 460,000 barrels/day 11 million gallons Texas City
1800 employees
1200 acres

3. Operation Unit
Pg A-11

4. Operation Unit Raffinate Splitter
Pg A-11

5. Operation Unit Relief Valves Raffinate Splitter
Pg A-11

6. Operation Unit Stack Relief Valves Raffinate Splitter Blowdown Drum
Pg A-11

7. Disaster Strikes Isomerization Unit Overflow of Distillation Tower
Overpressurization
Flooding with hydrocarbons
15 workers killed
180 injured

8. What Went Wrong? Stack Relief Valves Raffinate Splitter Blowdown Drum
Pg A-11

9. What Went Wrong? Stack Relief Valves Raffinate Splitter Blowdown Drum
Pg A-11

10. What Went Wrong? Stack Relief Valves Raffinate Splitter Blowdown Drum
Pg A-11

11. 5x9000 gallon tanker trucks What Went Wrong? Stack Relief Valves
Raffinate Splitter
Blowdown Drum
Pg A-11

12. What Went Wrong? Stack Relief Valves Raffinate Splitter Blowdown Drum
Pg A-11

13. pg 4

15. Blog.kir.com

17. Prevention Measures—Engineering
Improve Process Control
Automated emergency shutdown system
Location of Relief Valve
Top of tower for greater control of vaporization
Blowdown/Stack Flare Relief System

18. Prevention Measures—Human Control
Positive Work Enviroment
Management Enforcement Of:
Process safety
Operations performance
Systematic risk reduction
Training

19. Remember, YOU are responsible for maintaining a safe workplace!!