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
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Creator |
DEMMINK, JF
MEHRA, ANURAG BEENACKERS, AACM |
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Subject |
adhesion
catalysis hydrogen sulfide ph |
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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.
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Publisher |
Elsevier
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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 |
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Type |
Article
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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 |
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Language |
en
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