EFFECTS OF COVAPORS ON ADSORPTION RATE COEFFICIENTS OF ORGANIC VAPORS ADSORBED ONTO ACTIVATED CARBON FROM FLOWING AIR Page: 2 of 26
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Effects of Covapors on Adsorption Rate Coefficients of Organic Vapors
Adsorbed onto Activated Carbon from Flowing Gases
G.O. Wood*
Los Alamos National Laboratory, Mail Stop K-486, Los Alamos, NM 87545
*E-mail: gerry@lanl.gov; Tel: (505) 667-9824; Fax: (505) 665-2192
Abstract
Published breakthrough time, adsorption rate, and capacity data for components of
organic vapor mixtures adsorbed from flows through fixed activated carbon beds have been
analyzed. Capacities (as stoichiometric centers of constant pattern breakthrough curves) yielded
stoichiometric times t, which are useful for determining elution orders of mixture components.
We also calculated adsorption rate coefficients kv of the Wheeler (or, more general Reaction
Kinetic) breakthrough curve equation, when not reported, from breakthrough times and '.
Ninety-five kv (in mixture)/ kv (single vapor) ratios at similar vapor concentrations were
calculated and averaged for elution order categories. For 43 first-eluting vapors the average ratio
(1.07) was statistically no different (0.21 standard deviation) than unity, so that we recommend
using the single-vapor kv for such. Forty-seven second-eluting vapor ratios averaged 0.85 (0.24
standard deviation), also not significantly different from unity; however, other evidence and
considerations lead us recommend using kv (in mixture) = 0.85 kv (single vapor). Five third- and
fourth-eluting vapors gave an average of 0.56 (0.16 standard deviation) for a recommended kv (in
mixture) = 0.56 kv (single vapor) for such.
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WOOD, G. EFFECTS OF COVAPORS ON ADSORPTION RATE COEFFICIENTS OF ORGANIC VAPORS ADSORBED ONTO ACTIVATED CARBON FROM FLOWING AIR, article, December 1, 2000; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc724950/m1/2/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.