Using different silica alumina ratio Y molecular sieve as adsorbent, three ketone substance cyclohexanone, butanone, acetone as adsorbate, examines the ketone organic waste gas on the Y molecular sieve adsorption performance, the results show that with the increase of Y zeolite skeleton silica alumina ratio, the micro distributed volume and specific surface area decreased, formed the mesoporous structure at the same time, and with increase of silicon content in the skeleton, Y zeolite hydrophobic was improved. As the temperature increases, the molecular sieve adsorption by physical adsorption is gradually transformed into chemical adsorption, adsorption of cyclohexanone is increased after the first reduce. USY zeolite to ketones organic matter all have high adsorption capacity, due to the superimposition of hole wall, molecular sieve of molecular dynamics maximum diameter of cyclohexanone adsorption effect is best.

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