Analytical Heterogeneous Extended Langmuir Model: Effect of Unilan Parameters

2012 ◽  
Vol 581-582 ◽  
pp. 41-45
Author(s):  
Quan Li Feng ◽  
Yu Jia ◽  
Jian Chuan Yu ◽  
Ling Yang ◽  
Ping Ning

Analytical Heterogeneous Extended Langmuir (AHEL) model is explicit and computationally simple for predicting gas mixture adsorption based on parameters of pure component isotherm. An example of ethane and ethylene adsorption on molecular sieve revels that the prediction of gas mixture adsorption is related to the parameters of the maximum adsorption energies for different pure gas. The parameters are not required to be the same. But their significant difference generates big deviation in prediction of mixed gas adsorption for the system studied in this work., even though they agree well with experimental data for single component adsorption and the saturation amount adsorbed of individual component is nearly the same.

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