THE QUANTITATIVE USE OF THE BOHART-ADAMS EQUATION TO DESCRIBE EFFLUENT VAPOR PROFILES FROM FILTER BEDS

Citation
F. Karpowicz et al., THE QUANTITATIVE USE OF THE BOHART-ADAMS EQUATION TO DESCRIBE EFFLUENT VAPOR PROFILES FROM FILTER BEDS, Carbon, 33(11), 1995, pp. 1573-1583
Citations number
13
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
CarbonACNP
ISSN journal
00086223
Volume
33
Issue
11
Year of publication
1995
Pages
1573 - 1583
Database
ISI
SICI code
0008-6223(1995)33:11<1573:TQUOTB>2.0.ZU;2-9
Abstract
In studies of the removal of gases and vapours of varying volatility f rom a N-2 stream by adsorbent filter beds it is shown, for the first t ime, that the Bohart-Adams equation, first proposed over 70 years ago, can with slight modification be used to give good quantitative fits t o the effluent vapour profiles at 0% R.H. This was true for convention al carbons and both carbonised and uncarbonised macroreticular resins, and for vapours reversibly adsorbed. Desorption profiles could only b e fitted to the equation for the most volatile sorbates. Under conditi ons of high humidity, when water displacement competes with sorbate up take, then adherence to the equation only occurs at intermediate vapou r volatility.