It can either be done thermally or recent research has shown that electrochemically induced pH-swing is also a possibility, especially when combined with Power-to-X (PtX) applications [2]. Compared to membrane technologies, this method has high recovery, due to the low solubility of methane in the solvent used. Furthermore, this method offers a high yield of methane.
This study investigates a technology that uses electrochemistry for regeneration of carbon capture solvent. The technology has been tested in a laboratory scale reactor. Parameters such as solvent flow rate, gas flow rate, pH of solvent and power induced in battery to the solvent in performance have been tested. The electrochemical cell used was a two-chamber cell separated by a membrane. In the anode chamber a mix of CO2 and O2 is produced, whereas H2 is produced in the cathode chamber. This project aims to scale up the operation while also testing some of the parameters. The half-cell reactions are as follows.
Main supervisor:
Philip Loldrup Fosbøl (PLF)
Co- supervisors:
Jens Abildskov
Tessa Lund Biel-Nielsen
Head of project
Sebastian Nis Bay Villadsen