Dimensionless slope of the adsorption isotherm \(L\) : Dimensionless parameter in ZLC model defined in Eq. 5a \(P\) : Pressure (Pa) \({P}_{0}\) : Pressure after initial equilibration between dosing and uptake cells, see Eq. 12 (Pa) \({P}_{d}^{0}\) : Initial pressure in...
The adsorption of some chemicals used in EOR processes is described by the Langmuir adsorption isotherm (Langmuir, 1918; Danq et al., 2011; Ali and Mahmud, 2015). The adsorption of the chemical components delays its concentration front with respect to the water saturation front (Patton et al....
In reality, the shape of the isotherm is smooth where a comparable step in the adsorption isotherm is S-shaped. Thus, the gap in COP is expected to be filled if the real shape of the isotherms is considered. A more realistic shape of the isotherm can be obtained from the DFT model by...
To describe adsorption isotherm of T B P on Amberlite XAD-4 resin, Freundlich model of adsorption was used. For the case of nonlinear equilibrium a simpli- fied method proposed by Chi Tein(15)is used t o estimate intraparticle diffusion coefficient. Fixed bed experiments result in the ...
Due to these problems and the lack of many multicomponent data, the purpose of the theories should be to predict multicomponent adsorption based on single (gas) adsorption isotherm data. Many engineering theories for multicomponent adsorption can be roughly divided into three categories: extensions of...
adsorption hardly occurs. At low fugacity, CO2adsorption mainly occurs in small pores. At high fugacity, the increase in adsorption capacity mainly occurs within the macropores. The adsorption process of CO2on the FAU molecular sieve conforms to the type I Langmuir adsorption isotherm. The adsorpti...
Each obtained isotherm consists of at least 15 different measured points. The measured data are shown in Dubinin’s representation in Figure 2—the measured loading 𝑋X is transformed to the specific adsorbed volume 𝑊=𝑋/𝜌𝑎𝑑W=X/ρad and the measured pressure 𝑝p and temperature...
As can be seen from the adsorption isotherms of the Fe/Ni-MOFs on the CIP, both the Freundlich and Langmuir isotherms have correlation coefficients below 0.99, and the Freundlich isotherm has a correlation coefficient 0.98. Relatively above the Langmuir isotherm of 0.89, it can be seen that the...
The Henry isotherm is considered for describing the reaction terms. The measured concentration at the outlet boundary is provided as additional information for the identification procedure. Metropolis–Hastings and Adaptive Metropolis algorithms are implemented. Credible intervals have been plotted from ...
Pores size distribution can also be obtained from this isotherm. The specific surface area is a main parameter for characterizing the porous texture of a solid. This area is calculated in the range of relative pressures from 0.01 to 0.3 approximately. The main procedure used for the calculation ...