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IJCT Vol.11(5) [September 2004] >


Title: Determination of micropore volume and surface area of zeolite molecular sieves by D-R and D-A equations: A comparative study
Authors: Vyas, Raj K
Shashi
Kumar, Surendra
Keywords: D-A equation
D-R equation
13X molecular sieves
micropore volume
zeolite molecular sieves
physisorption measurements
Issue Date: Sep-2004
Publisher: CSIR
IPC CodeB01 J 29/04
Abstract: Dubinin-Astakhov (D-A) equation is used for determining the micropore volume and surface area of zeolite molecular sieves (ZMS) by using physisorption measurements. Likewise, Dubinin–Radushkevich (D-R) equation is used for the estimation of these parameters for carbon molecular sieves (CMS), and, unlike D-A equation it does not require the estimation of the exponent n. In this paper, surface area and micropore volume of 13X molecular sieves (MS) have been determined by using both D-A and D-R equations. The results by both equations are in very good agreement. Therefore, D-R equation may also be used for estimation of these parameters because its application is simple and easier
Page(s): 704-709
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.11(5) [September 2004]

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