Corrosion inhibitor in vertical HC piping?
Corrosion inhibitor in vertical HC piping?
(OP)
Hi,
A client suspects issues with injecting corrosion inhibitor in piping systems containing vertical piping.
The injection point itself is located in a horizontal pipe, however the downstream piping contains some vertical sections. Has anyone experienced issues with establishing a protective film in vertical piping? What are compensating measures here (other than perhaps replacing these sections with duplex / stainless piping).
Is this a likely problem?
Thanks!
A client suspects issues with injecting corrosion inhibitor in piping systems containing vertical piping.
The injection point itself is located in a horizontal pipe, however the downstream piping contains some vertical sections. Has anyone experienced issues with establishing a protective film in vertical piping? What are compensating measures here (other than perhaps replacing these sections with duplex / stainless piping).
Is this a likely problem?
Thanks!





RE: Corrosion inhibitor in vertical HC piping?
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Corrosion inhibitor in vertical HC piping?
RE: Corrosion inhibitor in vertical HC piping?
RE: Corrosion inhibitor in vertical HC piping?
The concerns are that the corrosion inhibitor is not able to generate a protective film on vertical sections of the pipe; I was wondering if anyone else has experienced this issue, and if so what the compensating measure was.
Regards,
Zpr
RE: Corrosion inhibitor in vertical HC piping?
This could (should) be easily demonstrated in a Lab Environment. Most filming inhibitors are polar (attracted) to the metal surfaces. Solids, turbulence, temerature, flashing of acid gasses and the presence of water are all considerations.