Pore Structure Characterization of Catalyst Supports Via Low Field NMR

摘要

In this paper, the application of low-field NMR to both surface area and pore structure analysis of catalyst supports will be presented. Low-field (20 MHz) spin-lattice relaxation (T sub 1 ) experiments are performed on fluids contained in alumina and silica catalyst supports. Pore size distributions (PSD) calculated from these NMR experiments are compared to those obtained from mercury porosimetry and nitrogen condensation. 18 refs., 4 figs., 2 tabs. (ERA citation 14:011391)