Extended Langmuir equation for correlating multilayer adsorption equilibrium data

作者：Zhang Peikun; Wang Li^*

来源：Separation and Purification Technology, 2010, 70(3): 367-371.

DOI：10.1016/j.seppur.2009.10.007

• Adsorption equilibrium model
• Langmuir
• Multilayer adsorption
• Data correlation

The Langmuir adsorption isotherm equation is extended to include a third parameter. The extended Langmuir model is then compared with the Aranovich-Donohue (A-D) and the n-layers BET models in their ability to fit experimental data. The extended Langmuir model shows the smallest deviation of all the three-parameter models discussed, and has a smaller deviation than certain of four-parameter models. Unlike the models that have a singularity when pressure equal to saturation vapor pressure, the extended Langmuir model performs well in numerical calculation as well as its ability to fit experimental data.

• 出版日期2010-1-12
• 单位北京科技大学