Journal of Advanced Chemical Engineering

Abstract

Characterization of Thermally Regenerated Activated Carbons Used in Rum Production by Acoustic Emission Analysis, N2 and Ar Gas Adsorption

Harold Crespo Sariol, Thayset Marino Peacok, Jan Yperman, Karen Leyssens, Vera Meynen, Angel Sanchez Roca, Hipolito Carvajal Fals, Ángel Brito Sauvanell, Robert Carleer and Jose Navarro Campa

Acoustic emission analysis applied for the characterization of granular activated carbons (GAC) has been barely explored. The porosity of regenerated GAC used in rum production has been assessed using the acoustic emission method based on the signal envelope analysis by band-pass filtering at 1.3 kHz of the sound produced by water flooding the activated carbon. Acoustic measurements have been correlated with porosity and surface area analysis applying argon at 87K and N2 at 77K. The found relationship proves not only the almost equivalency but also the partly complementarity of both techniques and the possibility to determine the regeneration degree of GAC using the acoustic emission method.