Accession Number : ADA336640

Title :   Measurement and Correlation of Water Adsorption Equilibria on Silica Gel, Sorbead, and Alumina Using a Novel Experimental Isotherm Apparatus

Descriptive Note : Final rept. Aug-Nov 96

Corporate Author : GUILD ASSOCIATES INC BALTIMORE MD

Personal Author(s) : Maurer, Scott M. ; Croft, David T. ; Friday, David K.

PDF Url : ADA336640

Report Date : DEC 1997

Pagination or Media Count : 41

Abstract : The design and operation of a novel, experimental volumetric isotherm apparatus is discussed. Water adsorption equilibria in nitrogen is measured over three adsorbents: silica gel 40, alumina F-200, and sorbead RF. This work concentrated on the adsorption behavior of water at low partial pressures ranging from 1 - 1000 Pa. The isotherm data for all adsorbents studied were measured over three orders of magnitude in both loading and partial pressure and also at three temperatures: 298, 323, and 348 K. In this study, initial efforts to measure and correlate water adsorption equilibria over different adsorbent materials are presented that span wide ranges of partial pressures and temperatures.

Descriptors :   *WATER, *ADSORPTION, *ALUMINUM OXIDES, *CHEMICAL EQUILIBRIUM, *SILICA GELS, TEMPERATURE, MATERIALS, COMPOSITE MATERIALS, NITROGEN, MILITARY APPLICATIONS, ISOTHERMS, ADSORBENTS, ADSORBATES, PARTIAL PRESSURE.

Subject Categories : Inorganic Chemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE