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Research Fellows Directory

Kyra Campbell

Dr Kyra Campbell

Research Fellow

Organisation

Imperial College London

Research summary

Climate change has become a reality that governments worldwide are struggling to cope with. While the impact of climate change is undeniable, scientists suggest that drastic rapid reductions of greenhouse gas emissions will reduce the effects. A well-developed and promising method of accomplishing this is post-combustion carbon capture (PCC). This method uses clever chemistry to trap the carbon dioxide found in the gas released by smokestacks. Unfortunately, the liquid (aqueous amine solution) used to accomplish this tends to degrade when subjected to the process. Worse yet, the liquid when loaded with carbon dioxide causes significant corrosion to the large steel vessels and long pipes found in PCC plants. With such great promise in PCC using amine solvents, it is critical to understand and reduce the corrosion caused by these solutions on steel. My work is focused on understanding and reducing corrosion, particularly addressing complex solutions containing amines. While amine solvents have been used in natural gas sweetening plants for many years, understanding of their corrosive potential has remained limited. Furthermore, the behavior of amine solvents is variable, with some corroding rapidly and others forming protective (and sometimes passivating) layers on the surface. The presence of potential anti-corrosion layers is exciting, however little is known about the chemistry of these layers and the mechanisms of formation. To better understand the chemistry and kinetics which control these corrosive behaviors, traditional, modern, and electrochemical techniques are necessary. Such a multi-faceted approach is essential to understanding the balance of kinetic and mass transfer control at play. To optimize our understanding of these corrosive behaviors in situ, the development of new instrumentation is essential. This looks to apply spectroscopic techniques to identify the formation and destruction of species as it occurs during the corrosion process. Such work is critical in continuing development and understanding of corrosion, not only in the field of carbon capture, but also more widely.

Grants awarded

Understanding Corrosion with in situ Electrochemistry and Spectroscopy

Scheme: Dorothy Hodgkin Fellowship

Dates: Jan 2016 - Apr 2021

Value: £489,166.37

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