Characterization of Activated Carbon by Propane and Propylene Adsorption

Abstract

Two types of commercial activated carbons, Westvaco BAX 1100 and Chemviron LAC 30-57, were characterized by microporosity, equilibrium, and kinetic adsorption of propane and propylene. The porosity was determined by the measurement of the N2 adsorption isotherm at 77 K. Single component equilibrium adsorption of propane and propylene on the adsorbents was measured in the temperature range (273 to 343) K and the pressure range (0.0001 to 1) bar and correlated by several well-known isotherm models. The enthalpies of adsorption were estimated by the Clausius−Clapeyron equation and its dependence on adsorption coverage. Fractional uptake experiments performed to study the single component kinetics and apparent diffusivity were evaluated.

Adsorption of Propylene and Propane onto Mn+X (Mn+ = Cr3+ and/or Ni2+) Zeolites and Comparison between Binary and Ternary Exchanges

“…Furthermore, Erm values are lower than 6%, and R 2 values are higher than 0.99 (Table ). A good correlation between the experimental and Toth isotherms was found for the systems CO 2 –CrNi­( x )­X, CO 2 –Cr­( x )­X, and CO 2 –Ni­( x )­X, and for adsorption of C 3 H 8 and C 3 H 6 onto activated carbon …”

“…A good correlation between the experimental and Toth isotherms was found for the systems CO 2 −CrNi(x)X, CO 2 −Cr(x)X, and CO 2 −Ni(x)X, 46 and for adsorption of C 3 H 8 and C 3 H 6 onto activated carbon. 47 It can be noted from Table 3 that the monolayer capacity (n s ) increases with decreasing temperature. Equilibrium adsorption capacity also decreases with increasing temperature, indicating that low temperature favors propane and propylene adsorption.…”

An indirect method to evaluate the performance of the activated carbon filters in the amine sweetening process

“…N 2 adsorption/desorption isotherm at 77 K is a generally practical method to determine the characterization of the porous carbon and surface area by ASAP. [15] N 2 adsorption/desorption isotherms of the fresh and the used activated carbon are reported in Fig. 3.…”

Adsorption of Propylene and Ethylene on 15 Activated Carbons

“…Activated carbon is a potential candidate in industrial applications such as water purification, gas storage, and separation . It has a well-developed pore structure, unique surface, and large pore volume, resulting in a high adsorption capacity and selectivity. – Therefore, it is a promising adsorbent for the separation of propylene and ethylene from the dry gas, taking into account the low price, abundant source, and easy regeneration.…”