CO2 Capture and H2 Recovery Using a Hollow Fiber Membrane Contactor

In this study, hydrogen was recovered and purified by using a membrane contactor unit from CO2-rich gas without the use of any basic chemicals such as amines. The operational parameters were adjusted to achieve high CO2 removal H2 recovery. effects flow rate, pressure, composition (CO2/H2 ratio), pressure difference between liquid gas, gas/liquid ratio on recovery investigated. Depending contact time could be controlled, changing absorption amounts H2. Regarding composition, an increase in CO2/H2 0.25 1 boosted Furthermore, increasing above (from 3) generally reduced 98.7% 83%. Additionally, supplementation with optimal amount additive enhanced Thus, system results (82.7–93.5%) (91.5–98.7%). Moreover, production separation can performed one system, implying that more efficiently contactor. This study offers new promising route for producing high-purity while removing CO2.