Corrosion (-erosion) and Stress Corrosion Cracking (SCC) Degradation Mechanisms in CO2 removal systems of ammonia plants

Course ID: MAT03

Corrosion (-erosion) and Stress Corrosion Cracking (SCC) Degradation Mechanisms in CO2 removal systems of ammonia plants

Author(s):
Current Status
Not Enrolled
Price
€550
Get Started

This course will contribute to a better understanding in the root cause and mechanism of corrosion (-erosion) and stress corrosion cracking degradation mechanisms in CO2 removal systems of ammonia plants.  Information is presented regarding preventive measures, monitoring and inspection technologies on these failure modes.

The target group of this course comprises process, mechanical and inspection engineers of ammonia plants.

Module 1
1. Introduction:
• NH3 process
• CO2 removal processes
2. Corrosion degradation mechanisms in Hot Potassium Carbonate (HPC) CO2 removal systems. Mechanisms and measures to mitigate:
• Corrosion.
• Corrosion-erosion.
• Carbonate/ bicarbonate Stress Corrosion Cracking.
3. Experience review in Hot Potassium Carbonate (HPC) CO2 removal processes:
• GV Giammarco Vetrocoke.
• Catacarb.
• Benfield.
4. Conclusions and recommendations regarding HPC CO2 removal processes.

Module 2
1. Amine-based CO2 removal systems: MEA, TEA, DIPA, aMDEA.
2. Corrosion degradation mechanisms in amine-based CO2 removal systems and formation of protective layers.
3. Experience review in Amine based CO2 removal systems; MEA, TEA, DIPA.
4. Conclusions / recommendations regarding Amine based CO2 removal systems (MEA, TEA, DIPA).
5. Experience review in Amine based CO2 removal systems:
• aMDEA.
• Morphology of corrosion in aMDEA.
• SCC investigations in aMDEA.
6. Conclusions / recommendations regarding aMDEA CO2 removal systems.
7. Physical solvent processes:
• Fluor Solvent Process (Fluor Corporation).
• Selexol process (KBR, TKIS).
8. Experience review in physical solvent process:
• Selexol process.
9. Pressure Swing Adsorption (PSA) process (Linde).
10. Conclusions / recommendations regarding physical solvent and PSA processes.

Module 3
1. Corrosion inspections and corrosion monitoring in CO2 removal systems.
2. Fitness-for-Service judgement, Repair and Stress Relieving (SR) / Post Weld Heat Treatment (PWHT).
3. Summary: Measures to prevent degradation mechanisms in CO2 removal systems.