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Absorption of hydrogen sulfide into aqueous solutions of ferric nitrilotriacetic acid: local auto-catalytic effects

DSpace at IIT Bombay

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Title Absorption of hydrogen sulfide into aqueous solutions of ferric nitrilotriacetic acid: local auto-catalytic effects
 
Creator DEMMINK, JF
MEHRA, ANURAG
BEENACKERS, AACM
 
Subject adhesion
catalysis
hydrogen sulfide
ph
 
Description The rates of reactive absorption of H2S into aqueous solutions of ferric nitrilotriacetic acid, at T=303 K and pH=4.5, studied in a flat-interface stirred cell, appear to be auto-catalyzed by freshly precipitated sulfur particles. These auto-catalytic effects, which are more prominent at higher ferric chelate concentration, seem to involve particle-to-interface adhesion phenomena. A model based on Higbie's penetration theory, which incorporates particle-to-interface adhesion, as well as a growing particle coverage during a liquid element's contact time at the interface, is used to analyze the experimental data. This model gives a reasonable description of the local auto-catalytic effects on the gas absorption rate.
 
Publisher Elsevier
 
Date 2009-03-09T07:39:45Z
2011-11-25T18:41:10Z
2011-12-26T13:06:54Z
2011-12-27T05:54:52Z
2009-03-09T07:39:45Z
2011-11-25T18:41:10Z
2011-12-26T13:06:54Z
2011-12-27T05:54:52Z
2002
 
Type Article
 
Identifier Chemical Engineering Science 57(10), 1723-1734
http://dx.doi.org/10054/885
http://dspace.library.iitb.ac.in/xmlui/handle/10054/885
http://hdl.handle.net/10054/885
 
Language en