Modeling the rate of corrosion of carbon steel using activated diethanolamine solutions for CO<sub>2</sub> absorption

Lubna Ghalib; Ahmed Abdulkareem; Brahim Si Ali; Shaukat Ali Mazari

doi:10.1016/j.cjche.2020.03.006

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Modeling the rate of corrosion of carbon steel using activated diethanolamine solutions for CO₂ absorption

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Modeling the rate of corrosion of carbon steel using activated diethanolamine solutions for CO₂ absorption
- Chinese Journal of Chemical Engineering Vol. 28, Issue 8, Pages: 2099-2110(2020)
- Affiliations：
  
  1. Materials Engineering Department, Mustansiriyah University, Baghdad,Iraq,14022
  2. Mathematics Science, Directorate General of Education Rusafa 1, Baghdad,Iraq
  3. Department of Chemical Engineering, University of Malaya,Kuala Lumpur,Malaysia,50603
  4. Department of Chemical Engineering, Dawood University of Engineering and Technology,Karachi,Pakistan,74800
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.03.006
  CLC：
- Published：2020
- Accepted：
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absorption[J]. 中国化学工程学报, 2020, 28(8): 2099-2110.
DOI：

absorption[J]. 中国化学工程学报, 2020, 28(8): 2099-2110. DOI： 10.1016/j.cjche.2020.03.006.

摘要

Abstract

A mechanistic model is developed to investigate the influence of an activator on the corrosion rate of carbon steel in the absorption processes of carbon dioxide (CO

). Piperazine (PZ) is used as the activator in diethanolamine (DEA) aqueous solutions. The developed model for corrosion takes into consideration the effect of fluid flow

transfer of charge and diffusion of oxidizing agents and operating parameters like temperature

activator concentration

loading and pH. The study consists of two major models: Vapor-liquid Equilibrium (VLE) model and electrochemical corrosion model. The electrolyte-NRTL equilibrium model was used for determination of concentration of chemical species in the bulk solution. The results of speciation were subsequently used for producing polarization curves and predicting the rate of corrosion occurring at the surface of metal. An increase in concentration of activator

increases the rate of corrosion of carbon steel in mixtures of activated DEA.

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Modeling the rate of corrosion of carbon steel using activated diethanolamine solutions for CO2 absorption

DOI：10.1016/j.cjche.2020.03.006

摘要

Abstract

关键词

Keywords

references

Modeling the rate of corrosion of carbon steel using activated diethanolamine solutions for CO₂ absorption