Post-graduate Students

Arash Momeni

Arash Momeni

Ph.D. Candidate, Department of Chemical Engineering, The University of Melbourne

Arash is a Ph.D. candidate in the Department of the Chemical Engineering at The University of Melbourne. He obtained his bachelor’s and master’s degrees in chemical engineering in 2012 and 2015. Following graduation from his Masters degree, he primarily worked on conceptual and basic process design projects, including simulation and cost estimation of CO2 absorption units.

Currently, his Ph.D. project title is “Energy-Efficient Liquid Sorbent for Carbon Dioxide Separation” under the supervision of A/Prof. Kathryn Mumford.

Negative emission technologies (NETs) play an increasingly essential role in the route to net zero emissions by 2050, and among them, direct air capture (DAC) is placed in a critical position, with considerable potential to influence climate change mitigation. However, due to the high costs associated with these systems, the widespread implementation is still lagging.

One of the primary factors to this high cost is the heat/power requirement of the chemical solvent regeneration process, which is a critical for chemical absorption-desorption systems. Hence it is necessary to introduce new energy-efficient technologies. Catalytic solvent regeneration is a novel pathway for energy-efficient DAC. Engineered water-dispersible nanocatalysts exhibit high efficiency and activity to reduce the temperature required for the regeneration processes due to their unique physical and chemical properties.

Since catalytic solvent regeneration is an emerging and growing technology, further studies are greatly needed in this area to enhance the performance, efficiency, and stability in an absorption-desorption system. This is particularly crucial in the new developing systems such as DAC to reduce the energy input, which this study aims to achieve. Reducing the energy input and cost is one of the key research challenges of DAC, which is aligned with the CarbonLock FSP goals.