Non-isothermal gas adsorption in fixed beds II. Non-linear equilibrium theory and ‘guillotine’ effect

Visualization of the exothermal VOC adsorption in a fixed-bed activated carbon adsorber

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Visualization of the exothermal VOC adsorption in a fixed-bed activated carbon adsorber

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Competitive adsorption

“…Wang [23] carried out a detailed study of the thermal regeneration of multicomponent adsorbents. Modeling the cycles of nonisothermal multicomponent adsorption permits a deeper understanding of the mechanism of separation of the gaseous components [24,79,80]. Experimental and calculated values of the differential enthalpies of adsorption (isosteric heats) for CO 2 (1-3) and C 2 H 6 (4-6) adsorbed on zeolite NaX: 1), 4) experimental data, 2), 5) calculation using Eq.…”

A Model To Predict the Adsorber Thermal Behavior during Treatment of Volatile Organic Compounds onto Wet Activated Carbon

“…According to this model, the mass flux is related to the difference between the equilibrium surface concentration and the average adsorbed-phase concentration. Although the global mass-transfer coefficient is often considered as an adjustable parameter (13)(14)(15), some authors attempted to correlate its value with the diffusion coefficients. For adsorption of large amounts of single species, the contribution of surface diffusion is predominant and expressions of the global coefficient were thus derived (8,(16)(17)(18).…”

Visualization of the exothermal VOC adsorption in a fixed-bed activated carbon adsorber

“……”

Competitive adsorption

“…Wang [23] carried out a detailed study of the thermal regeneration of multicomponent adsorbents. Modeling the cycles of nonisothermal multicomponent adsorption permits a deeper understanding of the mechanism of separation of the gaseous components [24,79,80]. Experimental and calculated values of the differential enthalpies of adsorption (isosteric heats) for CO 2 (1-3) and C 2 H 6 (4-6) adsorbed on zeolite NaX: 1), 4) experimental data, 2), 5) calculation using Eq.…”

A Model To Predict the Adsorber Thermal Behavior during Treatment of Volatile Organic Compounds onto Wet Activated Carbon

“…According to this model, the mass flux is related to the difference between the equilibrium surface concentration and the average adsorbed-phase concentration. Although the global mass-transfer coefficient is often considered as an adjustable parameter (13)(14)(15), some authors attempted to correlate its value with the diffusion coefficients. For adsorption of large amounts of single species, the contribution of surface diffusion is predominant and expressions of the global coefficient were thus derived (8,(16)(17)(18).…”

Visualization of the exothermal VOC adsorption in a fixed-bed activated carbon adsorber

“……”

Competitive adsorption

“…Wang [23] carried out a detailed study of the thermal regeneration of multicomponent adsorbents. Modeling the cycles of nonisothermal multicomponent adsorption permits a deeper understanding of the mechanism of separation of the gaseous components [24,79,80]. Experimental and calculated values of the differential enthalpies of adsorption (isosteric heats) for CO 2 (1-3) and C 2 H 6 (4-6) adsorbed on zeolite NaX: 1), 4) experimental data, 2), 5) calculation using Eq.…”

A Model To Predict the Adsorber Thermal Behavior during Treatment of Volatile Organic Compounds onto Wet Activated Carbon

“…According to this model, the mass flux is related to the difference between the equilibrium surface concentration and the average adsorbed-phase concentration. Although the global mass-transfer coefficient is often considered as an adjustable parameter (13)(14)(15), some authors attempted to correlate its value with the diffusion coefficients. For adsorption of large amounts of single species, the contribution of surface diffusion is predominant and expressions of the global coefficient were thus derived (8,(16)(17)(18).…”