Gas-solid Chromatographic Characterization of Active Carbons

The characterization of two active carbons was carried out by using gas chromatographic (GC) peak parameters (mean and variance) obtained by fitting experimental data with the Edgeworth-Cramér series. These results were then compared with those obtained from mercury porosimetry, low-temperature nitrogen adsorption measurements, small-angle X-ray diffraction, scanning electron microscopy and transmission electron microscopy. With regard to mass exchange processes, the chromatographic technique yields results which agree with those obtained by the other techniques. In regard to adsorption capacity, the GC characterization is more direct and unambiguous. © 1983.

The characterization of two active carbons was carried out by using gas chromatographic (GC) peak parameters (mean and variance) obtained by fitting experimental data with the Edgeworth-Cramér series. These results were then compared with those obtained from mercury porosimetry, low-temperature nitrogen adsorption measurements, small-angle X-ray diffraction, scanning electron microscopy and transmission electron microscopy. With regard to mass exchange processes, the chromatographic technique yields results which agree with those obtained by the other techniques. In regard to adsorption capacity, the GC characterization is more direct and unambiguous.