Applied Sciences, Год журнала: 2025, Номер 15(2), С. 832 - 832

Опубликована: Янв. 16, 2025

The present paper investigates the ammonia adsorption kinetic from air on sodium bentonite particles and aluminum pillared in fixed bed fluidized bed. is used as adsorbents raw material for chemically modified with polyhydroxocations. prepared by a classical pillaring process to create high porosity increase particle surface contact. Adsorbents were characterized following analysis: granulometric distribution, acid–base character determination Thermal Programmed Desorption (TPD), elemental microanalysis Energy Dispersive X-Ray coupled scanning electron microscopy (EDX-SEM), diffractograms, adsorption–desorption isotherms Brunauer–Emmett–Teller method distribution of pore sizes volume calculation Barrett–Joyner–Halenda method. variable parameters capacity are size, gas velocity total flow rate. kept constant during geometric ratio, adsorbent mass initial concentration. was measured until saturation function gas–particle contact technique. best results obtained homogeneous fluidization small bubbles after 100 s 0.945 mmol NH3/g. To complete study, desorption carried out thermo-desorption order recover particles. studied proved be high-performance materials use them depollution. Fluidized can an efficient technique accelerate transfer between

Язык: Английский