Electrochemical Corrosion Measurements of MEA Aqueous Solutions at Elevated Temperatures

7 Pages Posted: 16 Apr 2019 Last revised: 7 May 2019

See all articles by Kjell-Arne Solli

Kjell-Arne Solli

University of South-Eastern Norway

Zulkifli Idris

University of South-Eastern Norway

Date Written: October 25, 2018

Abstract

Corrosion can cause serious problems to amine treating plants as it can lead to unexpected downtime, production loss, and even personnel injury. This work utilizes electrochemical method to study the corrosion behavior of C1018 mild steel in aqueous solutions of monoethanolamine (MEA) upon addition of carbon dioxide (CO2) as well as nitric acid at temperatures of 25 °C to 80 °C. Solvent pH decreased upon temperature increase and CO2 loading, while the corrosion rates were most influenced by solvent temperature as both anodic and cathodic reaction rates increased. Addition of nitric acid gave a similar pH and corrosion rate as the addition of CO2 on a molar basis. Solvent rich in CO2 was found to have similar corrosivity as lean MEA despite the lower pH of solvent.

Keywords: PCC: Corrosion in amine systems, GHGT-14

Suggested Citation

Solli, Kjell-Arne and Idris, Zulkifli, Electrochemical Corrosion Measurements of MEA Aqueous Solutions at Elevated Temperatures (October 25, 2018). 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14) . Available at SSRN: https://ssrn.com/abstract=3366160

Kjell-Arne Solli (Contact Author)

University of South-Eastern Norway ( email )

Post office box 235
Kongsberg, 3603
Norway

Zulkifli Idris

University of South-Eastern Norway

Post office box 235
Kongsberg, 3603
Norway

Register to save articles to
your library

Register

Paper statistics

Downloads
6
Abstract Views
35
PlumX Metrics