Wet Sour Service
Wet Sour Service
(OP)
Dear Folks,
What are the requirements if I need to revamp a sweet service ASME pressure vessel into sour service. Please reply in the light of NACE MR0175/ ISO15156-1:2015.
What are the requirements if I need to revamp a sweet service ASME pressure vessel into sour service. Please reply in the light of NACE MR0175/ ISO15156-1:2015.
RE: Wet Sour Service
1. Obtain a copy of ISO 15156 (all parts, not just Part 1)
2. Read aforementioned documents
3. Confirm that the vessel owner has consented to the application of the stipulated permitted exclusions where allowed, if not, move to 4.
4. Thoroughly review manufacturing records of the vessel
5. Ascertain that all pertinent materials, and welds, meet the requirements of the documents, paying special attention to clause 8 of Part 2, if not, move to 6
6. If the manufacturing records are non-compliant, think of ways to make them compliant; naturally, forgery is not a recommended option (again, watch out for Part 2, Clause 8 because it is well tricksy)
7. If the records are absent, sit down and think what non-destructive tests could bring the materials into compliance
8. Execute such tests
9. Review the results as per 5 (Part 2, clause 8 is still there, and it's not going away) (note: API RP 581 might help a little with the risk assessment as that is where you will be heading)
10. If it is still a problem, think about what destructive tests could be performed whilst still offering a chance of keeping the vessel
11. Either give up, or make sure you are not on the plant
Steve Jones
Corrosion Management Consultant
www.linkedin.com/in/drstevejones
All answers are personal opinions only and are in no way connected with any employer.
RE: Wet Sour Service
We went steps 1-5 and then 10. When they considered cutting panels out of the vessel for testing we immediately were put to work writing the specs for the new one.
Make sure that you also have any applicable owners specifications.
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P.E. Metallurgy, consulting work welcomed
RE: Wet Sour Service
RE: Wet Sour Service
Steve Jones
Corrosion Management Consultant
www.linkedin.com/in/drstevejones
All answers are personal opinions only and are in no way connected with any employer.
RE: Wet Sour Service
Sounds like a new one to me.
Maybe a new internal lining instead?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Wet Sour Service
Steve Jones
Corrosion Management Consultant
www.linkedin.com/in/drstevejones
All answers are personal opinions only and are in no way connected with any employer.
RE: Wet Sour Service
If steel plates for shell and dish ends in fabrication of pressure vessel found to be ASME SA-516 Gr.70 with normalized condition, having maximum hardness less than 22HRC, forgings in accordance with ASTM A105 with hardness not exceeding 187 HBW, wrought pipe fittings used are ASTM A234 grade WPB then there are chances that we can use this vessel for sour service. How can we confirm these measurements with metallurgical structure using metallurgical replica and assess the susceptibility for HIC. Thanks again for your kind support.
RE: Wet Sour Service
I don't believe that you can confirm these points without destructive sampling and testing.
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P.E. Metallurgy, consulting work welcomed
RE: Wet Sour Service
Steve Jones
Corrosion Management Consultant
www.linkedin.com/in/drstevejones
All answers are personal opinions only and are in no way connected with any employer.
RE: Wet Sour Service
RE: Wet Sour Service
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P.E. Metallurgy, consulting work welcomed
RE: Wet Sour Service
Steve Jones
Corrosion Management Consultant
www.linkedin.com/in/drstevejones
All answers are personal opinions only and are in no way connected with any employer.
RE: Wet Sour Service
RE: Wet Sour Service
Steve Jones
Corrosion Management Consultant
www.linkedin.com/in/drstevejones
All answers are personal opinions only and are in no way connected with any employer.
RE: Wet Sour Service