62 / 2023-12-28 22:16:06

Enhancing CO2 Absorption with Compact Multi-Flow Absorber: Evaluation of Operational Factors

CO2 absorber,Compact multi-flow absorber,Co-current spray tower,Optimal operating conditions,Absorption efficiency

Innovations in CO₂ absorption devices play a vital role in advancing industrial applications of CO₂ capture, increasing CO₂ absorption rate and decreasing the absorber are important tasks in amine-based CO₂ capture technologies. This study presents a novel absorber, a compact multi-flow absorber, which employs co-current spray and traditional package. The integrated design of the spray and packed tower reduces the size of the absorber. By incorporating a co-current spray tower as the primary absorption unit, the absorber achieves higher CO₂ removal efficiency and significantly cut down the amount of package needed in the traditional absorber. A comparison with reported counter-current spray tower demonstrated higher overall absorption rate for proposed co-current spray tower. The co-current spray tower has an overall absorption rate approximately 50% higher than the counter-current spray tower in the first 60 seconds. The new absorber obtained an efficiency at 86%, however, the traditional package is only 67%. The newly designed absorber increased the CO₂ absorption efficiency by 28%. Finally, the relevance of each operational parameter was evaluated through orthogonal tests, while trend analysis elucidated the influence of various factors on mass transfer evaluation indices.