Rapid temperature swing adsorption using microwave regeneration for carbon capture

The use of microwave heating for the thermal regeneration a porous carbon adsorbent in adsorptive capture was evaluated. In this Microwave Swing Adsorption (MSA) process, multimode oven has been used to accelerate desorption CO2 after adsorption / N2 (15/85 v/v) mixture. Starting from commercial activated (AC) material (MSP-20X), sorbent extrudates were prepared and loaded Teflon column. bed inside (MW) cavity characterised at different locations. Although is not heated uniformly due hot spots MW cavity, flowing purge gas reduces non-uniform during step. This study also reports that MSA achieves extremely fast total (in 56 79 s), quickest reported up date MSA, very rapid rates allowing swift adsorption–desorption cycles. associated with high achieved (100 400 °C/min). We show rate faster when using higher powers practically identical energy inputs. Complete can be slightly longer durations 2-step heating. When comparing results reference TSA outperforms TSA, by MSA. During eleven cycles, it evidenced process regenerate reproducibility. microporosity remained intact revealing localised are damaging material.