Enhancing carbon dioxide absorption performance using the hybrid solvent: Diethanolamine-methanol

摘要: Abstract In this study, to appraise the performance of hybrid Diethanolamine-methanol solvent for CO2 absorption process in packed bed, volumetric overall gas phase mass transfer coefficient (KGaV) and percentage (η) under different operating conditions were investigated including inlet temperature 25–65 °C, reboiler 75–115 °C, concentration 5–15 vol%, flow rate 0.50–1.50 lit/min, 50–100 lit/min 10–30 wt%. The results show that by reducing from 115 95 °C, reduces 1%, but 17% instead. This issue has a great effect on energy saving desorption section. Moreover, adjusting condition, maximum KGaV η 4.69 (kmol m−3 h−1. kPa−1) 99.9%, respectively. study indicate use DEA-methanol solution had equal even higher (up 99.9%) than conventional MEA aqueous addition lower regeneration temperature.