FUEL 142 |
| Almost quantitative conversion of ethanol to ethene was catalyzed on mesoporous silica MCM-41 at 623 K or above. The introduction of nickel ion into the MCM-41 structure (Ni-MCM-41) made it possible that ethanol can selectively be converted to lower olefins. The yields of ethene, propene, butenes, and acetaldehyde at 673 K were 67, 16, 5, and 7%, respectively. No deactivation was observed during the continuous service of 10 h. The coexistence of 0-25 wt% of water in the gas-phase little affected the activity and selectivity of Ni-MCM-41. The catalysis was sufficiently observed even at SV=20,000 h-1. |
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Green Chemistry for Sustainable Energy Supply and Conversion
1:45 PM-5:20 PM, Tuesday, April 8, 2008 Morial Convention Center -- Rm. 242, Oral
Division of Fuel Chemistry |