Adsorption dynamics of ethane from air in structured fixed beds with different microfibrous composites

The purpose of this paper is to present the IZO application that calculates and visualizes coefficients of adsorption isotherms according to Freundlich, Langmuir, and BET in a classic and linear system, in a simple communicative way. The application also calculates the working time of the adsorption bed based on the transformation of the mass balance equation, and according to the Zuchowicki, Zabieziński, Tichonow, and the Bohart-Adams equations. The laboratory tests of the adsorption process of leachate from a municipal landfill on selected active coals ORGANOSORB 10, DESOTEK, and BA-10, were conducted to check the program for accuracy. Results of tests confirm that the linearization method of the calculation of adsorption isotherms coefficients, used in the IZO application, gives sufficient accuracy and may be used as an alternative of, e.g., the nonlinear estimation method.

Download Full-text

6 Adsorption dynamics in fixed-bed adsorbers

Adsorption Technology in Water Treatment ◽

10.1515/9783110715507-006 ◽

2021 ◽

pp. 187-214

Keyword(s):

Fixed Bed ◽

Adsorption Dynamics

Download Full-text

Multiscale Modelling of Wall-to-Bed Heat Transfer in Fixed Beds with Non-Spherical Pellets: From Particle-Resolved CFD to Pseudo-Homogenous Models

Chemical Engineering Science ◽

10.1016/j.ces.2021.116532 ◽

2021 ◽

pp. 116532

Author(s):

E.M. Moghaddam ◽

E.A. Foumeny ◽

A.I. Stankiewicz ◽

J.T. Padding

Keyword(s):

Heat Transfer ◽

Multiscale Modelling ◽

Fixed Beds

Download Full-text

Supercritical CO2 regeneration of activated carbon loaded with organic adsorbates

Water Science & Technology ◽

10.2166/wst.1997.0285 ◽

1997 ◽

Vol 35 (7) ◽

pp. 261-268 ◽

Cited By ~ 11

Author(s):

Kazuyuki Chihara ◽

Kanji Oomori ◽

Takao Oono ◽

Yosuke Mochizuki

Keyword(s):

Activated Carbon ◽

Cost Estimation ◽

Supercritical Co2 ◽

Adsorption Equilibrium ◽

Equilibrium Constants ◽

Adsorption Dynamics ◽

Boiling Points ◽

Organic Adsorbates ◽

Carbon Regeneration ◽

Co2 Density

Supercritical CO2 regeneration is one of the possibilities for spent carbon regeneration loaded with some organics. Here, adsorption equilibrium and adsorption dynamics were evaluated for some typical organic pollutants under some supercritical CO2 conditions. A supercritical CO2 chromatograph packed with activated carbon (F-400, CAL) was used to detect the pulse responses of organics, which were analyzed by moment analysis. Adsorption equilibrium constants of some organics varied with CO2 density and their boiling points. Possibility of regeneration of each substance was discussed. Cost estimation was necessary and was the key point of this technique.

Download Full-text