| 乙醇－水在疏水硅沸石表面上的吸附分离 |
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| 引用本文： | 龙英才,钱敏,杨国荣,王毅达,杨海.乙醇－水在疏水硅沸石表面上的吸附分离[J].石油化工,1994(6). |
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| 作者姓名： | 龙英才 钱敏 杨国荣 王毅达 杨海 |
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| 作者单位： | 复旦大学化学系 |
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| 摘 要： | 研究不同温度下乙醇在不含Ｓｉ－ＯＨ基团的疏水硅佛石（Ｓｉｌｉｃａｌｉｔｅ－Ⅰ）表面上的吸附等温线及脱附等温线。计算出硅沸石上乙醇的吸附热及脱附活化能分别为４９．４ｋＪ及１４．９ｋＪ／ｍｏｌ。疏水硅沸石吸附剂或硅沸石填充硅橡胶分离膜能有效地从稀乙醇－水的混合液中，或从发酵产生的啤酒中分离、浓缩乙醇。
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| 关 键 词： | 吸附分离，疏水硅沸石，EtOH－H＿2O，吸附热，脱附活化能 |
Adsorption and Separation of EtoH─H_2O on a Hydrophobic Silicious Zeolite |
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| Long Yingcai,Qian Min,Yang Cuorong,Wang Yida and Yang Hai.Adsorption and Separation of EtoH─H_2O on a Hydrophobic Silicious Zeolite[J].Petrochemical Technology,1994(6). |
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| Authors: | Long Yingcai Qian Min Yang Cuorong Wang Yida and Yang Hai |
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| Abstract: | Adsorption and desorption of EtOH on a sample of silicalite-Ⅰ were studied at differenttemperatures The sample,prepared under a system containing no TPA and withour additionof F￣-,has no Si-OH group on pore surface and has good hydrophobic properties. The adsor-ption heat and active energy of desorption as calculated from isotherms of adsorptionanddesorption, are 49.4kJ/mol and 14.9kJ/mol respectively.A column filled with an adsorbentof hydrophobic silicalite and 20wt%binder,or silicone rubber membrane filled with 30wt%of hydrophobic silicalite can be used to separate EtOH efficiently from EtOH-H_2O solution. |
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| Keywords: | adsorption and separation hydrophobic silicalite-Ⅰ EtOH-H_2O adsorptionheat active energy of desorption |
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