Mass-transfer effects on kinetics of nonideal liquid-phase ethyl tert-butyl ether formation
Sundmacher, K; Zhang, RS; Hoffmann, U
HERO ID
1249340
Reference Type
Journal Article
Year
1995
Language
English
| HERO ID | 1249340 |
|---|---|
| In Press | No |
| Year | 1995 |
| Title | Mass-transfer effects on kinetics of nonideal liquid-phase ethyl tert-butyl ether formation |
| Authors | Sundmacher, K; Zhang, RS; Hoffmann, U |
| Journal | Chemical Engineering and Technology |
| Volume | 18 |
| Issue | 4 |
| Page Numbers | 269-277 |
| Abstract | Ethyl tert-butyl ether (ETBE) is an alternative fuel oxygenate that can be produced in the liquid phase by addition of ethanol to isobutene catalyzed by sulfonic acid ion exchange resins. A generalized Langmuir-Hinshelwood rate expression is formulated in terms of the liquid phase activities of the reactants that is quasi-autocatalytic due to ethanol. This microkinetic model is combined with the generalized Maxwell-Stefan equations for a detailed investigation of the influence of multicomponent mass transfer limitations inside the macropores of the heterogeneous catalyst. The model is used for revision of experimental rate data for ETBE synthesis in the literature. The analysis reveals that reverse diffusion of isobutene can occur by strong interaction with ethanol and the catalyst effectiveness factor can exceed unity. |
| Doi | 10.1002/ceat.270180408 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science A1995RR27800007 |
| Is Public | Yes |
| Language Text | English |
| Keyword | EXCHANGE RESINS; ETHANOL |
| Is Qa | No |