Effects of Composition, Structure of Amine, Pressure and Temperature on CO2 Capture Efficiency and Corrosion of Carbon Steels Using Amine-based Solvents: a Review

Abstract

The emission of carbon dioxide (CO2) into the atmosphere is a significant environmental problem. Many technologies are proposed and implemented to sequester CO2 before it is released into the atmosphere. For capturing carbon dioxide (CO2) from exhaust gas and syngas streams in all industrial processes and combustion, chemical absorption using amine-based solvents has shown to be the most studied, reliable, and efficient technology. As a result of the dissolution of CO2 gas and its reaction with the amine solvents, the solution becomes corrosive. This undesirable phenomenon creates a corrosion problem in the absorption column, usually carbon steel. This review paper aims to understand the effects of the variables amine composition in the solution, amine structure, pressure, and temperature on the efficiency of CO2 capture and corrosion of carbon steels using chemical absorption technology using amine-based solvents.