- #1
g0ggs123
- 22
- 0
Does anyone have any experience with liner material for application on pipework with internal corrosion/erosion?
Pipes are designed to hold water/methanol vapour
Normal operating conditions for the pipes:
Temperature
• Average temp - 172F
• Max temp - 267.1F
Pressure
• Average internal pipe pressure - 5.4 PSIG
• Max internal pipe pressure - 15 PSIG
Acidity level
• pH level of ~3.5-5.5
Chloride level
• 90000 – 120000ppm
Fines of up to 40 microns collect in the system and circulate the pipe work within the liquid which has a max flow rate of 200USPGM.
Process treatment in the pipes consists of:
1) Oxygen Scavenger (sodium bisulphate)
2) Scale Inhibitor (polymer based)
3) Corrosion Inhibitor (organic)
4) Defoamer (silicon polymer)
Failure mechanisms/ Anomalies detected include:
• Weld root corrosion
• Pitting corrosion
• Synergistic effect of erosion/corrosion
• Impingement corrosion
If anyone has experience with using an internal liner or lining material with applications similar to the above any feedback would be much appreciated.
Pipes are designed to hold water/methanol vapour
Normal operating conditions for the pipes:
Temperature
• Average temp - 172F
• Max temp - 267.1F
Pressure
• Average internal pipe pressure - 5.4 PSIG
• Max internal pipe pressure - 15 PSIG
Acidity level
• pH level of ~3.5-5.5
Chloride level
• 90000 – 120000ppm
Fines of up to 40 microns collect in the system and circulate the pipe work within the liquid which has a max flow rate of 200USPGM.
Process treatment in the pipes consists of:
1) Oxygen Scavenger (sodium bisulphate)
2) Scale Inhibitor (polymer based)
3) Corrosion Inhibitor (organic)
4) Defoamer (silicon polymer)
Failure mechanisms/ Anomalies detected include:
• Weld root corrosion
• Pitting corrosion
• Synergistic effect of erosion/corrosion
• Impingement corrosion
If anyone has experience with using an internal liner or lining material with applications similar to the above any feedback would be much appreciated.