Absorption of hydrogen sulfide into aqueous solutions of ferric nitrilotriacetic acid: local auto-catalytic effects
| Autor: | Anurag Mehra, J.F Demmink, A.A.C.M. Beenackers |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Aqueous solution
Ph Applied Mathematics General Chemical Engineering Hydrogen sulfide Inorganic chemistry Nitrilotriacetic acid chemistry.chemical_element General Chemistry Sulfur Industrial and Manufacturing Engineering Catalysis Flue-gas desulfurization chemistry.chemical_compound chemistry Mass transfer medicine Adhesion Ferric Hydrogen Sulfide medicine.drug |
| Zdroj: | IndraStra Global. |
| ISSN: | 2381-3652 |
| Popis: | 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. © Elsevier |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|