Drying kinetics as a new tool for the estimation of pore size of materials

Drying kinetics as a new tool for the estimation of pore size of materials

Authors

  • Julio F. Mata-Segreda Biomass Laboratory, School of Chemistry and Institutional Programme on Alternative Energy Sources, University of Costa Rica, 11501-2060, Costa Rica

DOI:

https://doi.org/10.22458/urj.v6i1.311

Abstract

ABSTRACT: The rate of drying of porous materials is constant up to a critical degree of drying (xc), where it starts decreasing as the process occurs. This critical extent of the process correlates with mean pore size. Determination of xc is useful for the assessment of porosity between materials of a particular chemical composition. This new approach is much simpler than the usual determination of surface features.

 

KEY WORDS: Drying curves, diffusibility of liquids in porous materials, porous materials, pore size.

 

References

Chaudhary, K., Cardenas, M. B., Deng, W., & Bennett, P. C. (2013). Pore geometry effects on intrapore viscous to inertial flows and on effective hydraulic parameters. Water Resources Research, 49, 1149-1262.

Fogler, H. S. (1992). Elements of chemical reaction engineering. (2nd ed). Englewood Cliffs, New Jersey: Prentice Hall PTR.

Geankoplis, C. J. (2006). Procesos de transporte y principios de procesos de separación. (4th Spanish ed). Mexico: CECSA.

Kemp, I. C., Fyhr, B. C., Laurent, S., Roques, M. A., Groenewold, C. E., Tsotsas, E., Sereno, A. A., Bonazzi, C. B., Bimbenet, J. J., & Kind, M. (2001). Methods for processing experimental drying kinetics data. Drying Technology, 19, 15-34.

Kutay, M. E. (2009). Pore pressure and viscous shear stress distribution due to water flow within asphalt pore structure. Computer-Aided Civil Infrastructure Engineering, 24, 212-224.

Mujumdar, A. S., & Devahastin, S. (2000). Fundamental principles of drying. In Devahastin, S. (Ed.), Mujumdar’s practical guide to industrial drying. Montreal: Exergex Corp.

Renkin, E.M. (1954). Filtration, diffusion, and molecular sieving through porous cellulose membranes. The Journal of General Physiology, 38, 225-243.

Tovbina, Z. M., Kutz, V. S., & Strelko, V. V. (1969). Study of the proton relaxation times of water in the pores of silica gels having different structures. Theoretical and Experimental Chemistry, 5, 619-621.

Downloads

How to Cite

Mata-Segreda, J. F. (2014). Drying kinetics as a new tool for the estimation of pore size of materials. UNED Research Journal, 6(1), 149–152. https://doi.org/10.22458/urj.v6i1.311

Issue

Vol. 6 No. 1 (2014)

Section

Articles

License

Note: This abstract contains an incorrect copyright due to technical issues. Authors who publish with this journal agree to the following terms: Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal

All journal contents are freely available through a CC BY 4.0 license.

CC BY 4.0 is a Creative Commons: you can copy, modify, distribute, and perform, even for commercial reasons, without asking permission, if you give appropriate credit.

Contents can be reproduced if the source and copyright are acknowledged according to the Open Access license CC BY 4.0. Self-storage in preprint servers and repositories is allowed for all versions. We encourage authors to publish raw data and data logs in public repositories and to include the links with all drafts so that reviewers and readers can consult them at any time.

The journal is financed by public funds via Universidad Estatal a Distancia and editorial independence and ethical compliance are guaranteed by the Board of Editors, UNED. We do not publish paid ads or receive funds from companies.