| FeCrAl合金丝网上ZSM-5分子筛膜的制备及其催化性能 |
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| 引用本文： | 武慧慧,厉刚. FeCrAl合金丝网上ZSM-5分子筛膜的制备及其催化性能[J]. 石油学报(石油加工), 2012, 28(4): 577-582. DOI: 10.3969/j.issn.1001-8719.2012.04.009 |
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| 作者姓名： | 武慧慧 厉刚 |
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| 作者单位： | 浙江大学 化学系, 浙江 杭州 310027 |
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| 基金项目： | 国家自然科学基金项目(50976103)资助 |
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| 摘 要： | 采用原位生长法制备了以FeCrAl合金丝网为载体的ZSM-5分子筛膜催化剂，用XRD和SEM表征了催化剂的结构与形貌。以正辛烷气相裂解为探针反应，对分子筛膜的催化活性进行了表征。结果表明，在其余反应条件相同的情况下，采用一步法合成的ZSM-5(C)膜或二步法合成的ZSM-5(M)膜为催化剂，正辛烷的裂解转化率均高于以空白载体为催化剂的，且ZSM-5(C)膜比ZSM-5(M)膜具有更高的催化活性。400℃时，ZSM-5(C)膜和空白载体催化正辛烷裂解的转化率分别为24.2%和2.0%。具有裂解催化活性的ZSM-5分子筛膜在吸热燃料方面有良好的应用前景。
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| 关 键 词： | ZSM-5分子筛膜 FeCrAl合金丝网 催化裂解 正辛烷 |
| 收稿时间： | 2011-05-27 |
Preparation and Catalytic Properties of ZSM-5 Zeolite Films on FeCrAl Alloy Grids |
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| WU Huihui,LI Gang. Preparation and Catalytic Properties of ZSM-5 Zeolite Films on FeCrAl Alloy Grids[J]. Acta Petrolei Sinica (Petroleum Processing Section), 2012, 28(4): 577-582. DOI: 10.3969/j.issn.1001-8719.2012.04.009 |
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| Authors: | WU Huihui LI Gang |
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| Affiliation: | Department of Chemistry, Zhejiang University,Hangzhou 310027, China |
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| Abstract: | ZSM-5 film catalysts with ZSM-5 crystals on FeCrAl grids were prepared by in-situ growth method, and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The catalytic performance of these films was evaluated by using n-octane cracking as a model reaction. The results showed that the conversion rates of n-octane over ZSM-5(C) film prepared by one-step method and over ZSM-5(M) film prepared by two-step method were higher than that over the bare FeCrAl grid. ZSM-5(C) film showed higher catalytic activity than ZSM-5(M) film. The conversion rates of n-octane at 400 ℃ were 24.2% over ZSM-5 (C) film and only 2.0% over the bare FeCrAl grid. ZSM-5 catalytic films prepared herein showed good application in the field of endothermic fuels. |
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| Keywords: | ZSM-5 films FeCrAl grids catalytic cracking n-Octanen-Octane |
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