| Autor: |
P.F. Van Den Oosterkamp, J. C. Oudejans, H. van Bekkum |
| Rok vydání: |
1982 |
| Předmět: |
|
| Zdroj: |
Applied Catalysis. 3:109-115 |
| ISSN: |
0166-9834 |
| DOI: |
10.1016/0166-9834(82)80084-5 |
| Popis: |
The catalytic conversion of ethanol over zeolite H-ZSM-5 in the presence of water has been studied as a model system for conversion of ethanol-containing aqueous fermentation mixtures. The influence of several reaction variables is studied. Depending on the reaction conditions, different mixtures of hydrocarbons are obtained. Above 535 K up to 50 wt % of aromatics are found while at lower temperatures dehydration and oligomerization predominate. Water added to the feed appears to increase the yield of aromatics. A low space velocity results in a high selectivity for aromatics whereas at hiph space velocity dehydration becomes more important. Water as co-feed is assumed to decrease the rate of deactivation. Dealuminated zeolite H-Y and dealuminated H-mordenite show only dehydrative activity while dealuminated H-mordenite is found to deactivate quite rapidly, in spite of the presence of water. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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