Affiliation:
1. Chinese Academy of Sciences
Abstract
This article proposes the differential BJH equation based on the principles of multilayer adsorption and capillary condensation, which was simplified by theoretical investigation and experiments. This work indicates that the differential function of isotherm and the differential function of pore size to relative pressure determine the pore size distribution of porous media. The differential BJH model can be used to explain the source of the false peak in pore size distribution and to calculate the pore size distribution of different shapes of pores in a porous media with a porous structure. It has an excellent application prospect in the characterization of complex pore structure represented by shale.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference15 articles.
1. Barrett E P, Joyner L G, Halenda P P. The Determination of Pore Volume and Area Distributions in Porous Substances. I. Computations from Nitrogen Isotherms [J]. Journal of the American Chemical Society, 1951, 73(1): 373-80.
2. Liu W, Cui S, Wang Z, Ding B. Research progress of adsorption materials for gas hydrate production by displacement method. Modern Chemical Industry, 2019, 39(11): 53-57.
3. Yang F, Ning Z F, Zhang S D, et al. Characterization of pore structures in shales through nitrogen adsorption experiment. Natural Gas Industry, 2013, 33(04): 135-140.
4. Kuila U, Prasad M. Specific surface area and pore-size distribution in clays and shales [J]. Geophysical Prospecting, 2013, 61(2): 341-362.
5. Silvestre-Albero A M, Juarez-Galan J M, Silvestre-Albero J, et al. Low-Pressure Hysteresis in Adsorption: An Artifact? [J]. Journal of Physical Chemistry C, 2012, 116(31): 16652-16655.
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2 articles.
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