| Publisher DOI: | 10.1016/j.supflu.2017.07.014 | Title: | Modeling adsorption on energetically heterogeneous surfaces with an extended SAFT-VR approach | Language: | English | Authors: | Kern, Johannes Johannsen, Monika |
Keywords: | Adsorption;Carbon dioxide;Equation of state;Heterogeneous surface;SAFT-VR | Issue Date: | 2018 | Source: | Journal of Supercritical Fluids (133): 70-76 (2018) | Journal or Series Name: | The journal of supercritical fluids | Abstract (english): | Adsorption equilibria of methanol/carbon dioxide mixtures on plain silica particles at 308 K and pressures of 10.1 MPa, 12.7 MPa, 15.1 MPa and 20.1 MPa were measured with the frontal analysis by characteristic points (FACP) method using supercritical fluid chromatography. The data show a bimodal adsorption energy distribution and cannot be sufficiently modeled with a two-dimensional SAFT-VR approach. Therefore, an extension of SAFT-VR is proposed to model adsorption on heterogeneous surfaces and applied to the presented data. It can be described by the extended model with very low ARDs between 1.0% and 2.4%. | URI: | http://hdl.handle.net/11420/3909 | ISSN: | 0896-8446 | Institute: | Thermische Verfahrenstechnik V-8 | Type: | (wissenschaftlicher) Artikel |
| Appears in Collections: | Publications without fulltext |
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