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Kinetic modeling of...
Kinetic modeling of H2-assisted C3H6 selective catalytic reduction of NO over silver alumina catalyst
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- Azis, Muhammad Mufti, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Härelind Ingelsten, Hanna, 1973 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Creaser, Derek, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- English.
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In: Chemical Engineering Journal. - : Elsevier BV. - 1385-8947. ; 278, s. 394-406
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Abstract
Subject headings
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- A global kinetic model was developed for C3H6-SCR consisting of NO oxidation, C3H6 oxidation and C3H6-SCR reactions with and without H-2 over Ag-Al2O3. The model is based on a dual role of H-2 to remove inhibiting nitrates from the active sites as well as to modify/form new active Ag sites. For model development, a range of temperature programmed reaction (TPR) and transient feed experimental conditions were used. The proposed model was eventually also validated with additional transient experimental data. The kinetic model proposed in this study predicts the experimental data well for a wide-range of feed conditions. Evaluation of mass transfer resistance in the washcoat indicated that during H-2-assisted C3H6-SCR, mild internal mass transfer resistance for NO was predicted to be important already at 250 degrees C.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
Keyword
- H2 effect
- Silver alumina
- Kinetic modeling
- C3H6-SCR
Publication and Content Type
- art (subject category)
- ref (subject category)
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