Modelling of formic acid in situ separation in a three compartment electrolyzer
conference paper
CO2 can be utilized in an electrolyzer to produce formic acid without the need of using noble metal catalysts. The aqueous environment of the reaction makes the separation of the formic acid challenging. Here we propose a model of a in situ separation method using a three compartment flow electrolyzer. The analytical model is validated with the experimental data published by Kaczur et al. on the in situ separation in a middle compartment of the electrolyzer. The model is extended to describe the mass transport through the membranes delimiting the electrolyzer chambers by specifically predicting the concentrations of the species in the three compartments, the pH variation during the reactions, the flux of the ionic species through the compartments.
TNO Identifier
958135
Publisher
Elsevier
Source title
14th International Conference on Greenhouse Gas Control Technologies, GHGT-14, 21-25 October 2018, Melbourne, Vic., Australia
Collation
16 p.
Place of publication
Amsterdam
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