| 초록 |
In this study, we designed and studied the modeling of equilibrium adsorption of ammonia gas on the synthesized Mesoporous Alumina in a pressure range of 1-5 bar at 25oC at a low ammonia concentration of 5000 ppm through a fixed bed reactor. Mesoporous Alumina with different pore structures was synthesized using Evaporation Induced Self Assembly (EISA) method by adjusting acid concentrations and calcination conditions. Besides, alumina materials were also functionalized by phosphoric, sulfuric, and carboxylic acid groups to increase the acidity. Various adsorption isotherm models such as Langmuir, Freundrich, Langmuir-Freundlich, Dubinin-Radukevich, Radke-Prausnitz and Toth were fitted to the non-linear experimental equilibrium data of Mesoporous Alumina with an accurate correlation over the entire pressure range. |
