Gas Sorption, Diffusion and Seepage Processes in Novel Porous Materials

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: closed (10 September 2021) | Viewed by 2148

Special Issue Editor


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Guest Editor
The Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, Cracow, Poland
Interests: technological innovations; diffusion; sorption; seepage; permeability; environmental engineering; CCS
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Special Issue Information

Dear Colleagues,

Knowledge of the sorption, diffusion and seepage processes taking place in the pore space of materials of natural and anthropogenic origin is extremely important from the point of view of many applications. This includes gas separation processes, capture of gas components from mixtures, capture of greenhouse and toxic gases, air treatment systems, storage of gases with energy potential, energy and environmental engineering applications. The sorption capacities, diffusion and permeability coefficients of most commonly used sorbents to gases are relatively known and studied. The constant development of novel porous materials entails the necessity to conduct research to identify their properties.This Special Issue is focused on the study of both new and already known porous materials, in the context of better identifying their sorption properties and the study of fluid transport processes taking place in their pore spaces.

Dr. Mateusz Kudasik
Guest Editor

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Keywords

  • sorption
  • diffusion
  • permeability
  • porosity
  • environment
  • porous materials
  • sorbent

Published Papers (1 paper)

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Research

11 pages, 1135 KiB  
Article
Nonlinear and Linear Equation of Gas Diffusion in Coal—Theory and Applications
by Marek Gawor, Norbert Skoczylas, Anna Pajdak and Mateusz Kudasik
Appl. Sci. 2021, 11(11), 5130; https://doi.org/10.3390/app11115130 - 31 May 2021
Cited by 3 | Viewed by 1605
Abstract
The authors derived the analytical solution to diffusion equations. The solution requires linearization of diffusion equations, as well as developing the obtained expression into a series. In particular, the result of the first procedure is highly deviated from the exact solution. The authors [...] Read more.
The authors derived the analytical solution to diffusion equations. The solution requires linearization of diffusion equations, as well as developing the obtained expression into a series. In particular, the result of the first procedure is highly deviated from the exact solution. The authors conducted a sorption experiment and then, in relation to the registered kinetics of the diffusion of CO2 inside hard coal grains, approximated the linear solution and the numerical nonlinear solution by means of the least squares method. As confirmed by the lower value of the sum of deviation squares, it can be clearly demonstrated that the nonlinear equation represents the actual measurement more accurately. Full article
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