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molecular sieve |
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molecular sieve [mə′lek·yə·lər ′siv] (chemistry) A naturally occurring or synthetic zeolite characterized by the ability to undergo dehydration with little or no change in crystal structure, thereby offering a very high surface area for adsorption of foreign molecules. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Last year it made a breakthrough in the development of a nano membrane that acts as a molecular sieve to distill ethanol for use as a gasoline additive, which makes a cleaner burning fuel. Suslick and his colleagues describe their molecular sieve in the October Nature Materials. For example, molecular sieve processes require large bed sizes and very short cycle times, and reactions with metal oxides result in a nonregenerable waste product. |
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