1887

Abstract

Summary

To protect a geothermal plant of the Upper Rhine Graben, the performance of commercially available corrosion inhibitors was evaluated in laboratory. Experiments, and in particular electrochemical measurements, were successfully conducted at 170°C, 22 bar, in autoclave to measure steel corrosion rates in utilization conditions, and to reproduce the scale deposits observed on-site. Among the inhibitor products the least toxic for aquatic life, one was able to reduce the steel corrosion rate in geothermal brine from 80 to 30 µm/year at 80°C, and from 450 to 180 µm/year at 170°C.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.202021010
2020-11-16
2024-04-20
Loading full text...

Full text loading...

References

  1. [1]Ding, Y., Brown, B., Young, D., and Singer, M. [2018] Effectiveness of an imidazoline-type inhibitor against CO2 corrosion of mild steel at elevated temperature (120°C–150°C). NACE Corrosion, paper 11622.
    [Google Scholar]
  2. [2]Umoren, S.A., AlAhmary, A.A., Gasem, Z.M., and Solomon, M.M. [2018] Evaluation of chitosan and carboxymethyl cellulose as ecofriendly corrosion inhibitors for steel.International Journal of Biological Macromolecules, 117, 1017–1028.
    [Google Scholar]
  3. [3]Chen, H.J., Hong, T., and Jepson, P. [2000] High temperature corrosion inhibition performance of imidazoline and amide.Corrosion, paper 00035.
    [Google Scholar]
  4. [4]Schauhoff, S. and Kissel, C.L. [2000] New corrosion inhibitors for high temperature applications.Materials and Corrosion, 51, 141–146.
    [Google Scholar]
  5. [5]Mundhenk, N., Huttenloch, P., Sanjuan, B., Kohl, T., Steger, H., and Zorn, R. [2013] Corrosion and scaling as interrelated phenomena in an operating geothermal power plant.Corrosion Science, 70, 17–28.
    [Google Scholar]
  6. [6]Mouchot, J., Genter, A., Cuenot, N., Scheiber, J., Seibel, O., Bosia, C., and Ravier, G. [2018] First Year of Operation from EGS geothermal Plants in Alsace, France: Scaling Issues.Proceedings 43rd workshop on geothermal reservoir engineering, Standford, SGP-TR-213.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.202021010
Loading
/content/papers/10.3997/2214-4609.202021010
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error