Power-to-X: Plasma-based gas conversion into value-added chemicals

Plasmas are promising technology for the conversion of gases such as CO2, CH4 or N2 into more valuable ones, e.g. CO (starting material for alcohols and hydrocarbons), H2 (clean fuel applications) and NH3 (fertilisers). Such gas conversion processes are essential parts of the chemical industry, requiring significant amounts of energy and resulting in CO2 emission. Plasma technology has the potential to contribute to making these processes more sustainable because they do not require high temperatures and pressures and can use (green) electricity for their production without the need for (fossil) fuels. Also, plasma systems can be made in small modules to operate locally at the point of consumption, rather than in large-scale central facilities, reducing the transport costs.

However, despite their potential, the efficiency and robustness of these novel plasma processes needs to be improved to be commercially viable. The key to this is to be able to control and optimise the plasma chemistry of these devices. These plasmas are non-equilibrium environments consisting of a mix of energetic electrons, ions and reactive atoms and molecules. Controlling the content and properties of this mixture of species is challenging but key to effective gas conversion.

This project aims to understand the fundamental plasma physics and chemistry that underpins novel plasma-based gas conversion applications. We will develop a suitable model plasma source that is industrially relevant but equipped with an extensive suite of diagnostics (e.g. UV and IR absorption spectroscopy, Laser-Induced Fluorescence (LIF), optical emission spectroscopy) to characterise the plasma. In addition, modelling approaches will be employed to further understand the plasma chemistry behaviour. These findings will inform the pathways towards the necessary optimisation for applications, enabling more efficient plasma-based gas conversion and a generally more sustainable future.

How to apply:

Applicants should apply via the University’s online application system. Please read the application guidance first so that you understand the various steps in the application process.