The aim of this work was to evaluate the performance of three different supported amine sorbents in a 6‐step vacuum swing adsorption (VSA) cycle through process simulation and optimization for a representative post‐combustion CO2 capture system. Detailed process optimization revealed that all the adsorbents were able to achieve the desired purity‐recovery targets. The best performing adsorbent in terms of productivity was Lewatit with a productivity of 0.48 mol m−3 ads s−1. All the adsorbents exhibited similar minimum specific energy value of around 1 MJ kg−1 on an electric basis.
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Krishnamurthy et al. (2021) studied this question.