Assessment of the non-thermal effect of high-frequency electromagnetic fields on the adsorption processes in porous media
UDC: 532.5+537.8
DOI: 10.33285/0207-2351-2022-8(644)-9-12
Authors:
GALIMBEKOV AYRAT D.
1,
KHISMATULLINA FARIDA S.2,3
1 National Research University "Moscow Power Engineering Institute", Moscow, Russia
2 LUKOIL-Engineering, Moscow, Russia
3 National University of Oil and Gas "Gubkin University"
Keywords: adsorption, adsorbate, adsorbent, electrostatic field, polar molecule, dipole-dipole interaction
Annotation:
It is known that high-frequency electromagnetic fields produce a thermal effect on adsorption and reduce it due to volumetric heating of the medium. But, in addition to thermal effects, high-frequency electromagnetic fields also pay a non-thermal effect associated with polarization effects. The article provides a qualitative assessment and analysis of the non-thermal effect of high-frequency electromagnetic fields on the adsorption processes of oil polar components using a non-polar adsorbent (the surface of pore channels). To assess the impact, the limiting case is considered when the surface of the adsorbent is modeled by a conductive metal surface and the system is affected by an external electrostatic field. Summarizing the obtained results of evaluation of high-frequency electromagnetic fields of non-thermal effects, it is concluded that, regardless of the external field orientation, it enhances the adsorption of polar molecules on the surface of the adsorbent, while the non-thermal effect of the field on adsorption is small as compared with the thermal effect of the impact.
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