Dear Experts,
I'm not very expert in little/modular Crude Distillation Units (CDU) and the relevant Materials of Construction (MOC).
For the big plants, I've always seen a big attention to the various corrosion aspects:
- wet H2S
- S at high temperature
- salts (eg water + chlorides)
- naphthenic acids.
As a consequence of that, very few parts of the CDU were made in Carbon Steel (CS).
Now, for the modularized CDU, several specialized vendors are proposing a 100% CS unit.
Could you kindly revert on your experience in this field?
Thanks,
gegio