Comparison of microwave and conventional heating for CO2 desorption from zeolite 13X

摘要: Abstract This study investigates microwave irradiation as an alternative to conventional heating for temperature swing adsorption processes. The performance of and during sorbent regeneration was evaluated by measuring CO2 desorption from zeolite 13X at different temperatures. Experimentally, a fixed bed saturated 150 sccm flow 15 % room followed under nitrogen 55, 100, or °C applying either heating. Microwaves reduced times least half compared Under regeneration, curves were resolved into two peaks representing physisorbed (mass diffusion limited) low bicoordinated (thermally with increasing temperature. only one peak observed suggesting that limited mass through the porous structure, rather than Depending on power, apparent activation energy microwave-assisted 15.8–18.1 kJ/mol, 41.5 kJ/mol regeneration. reduction in is mainly attributed selective sites (Na+ sites) resulting greater steady state temperatures Na+ relative framework atoms, efficiency due microwaves heat transfer. Due rapid cycling efficient transfer 13X, found increase adsorption/desorption productivity potentially reduce penalty capture.