Preparation of Zeolite Film on the Surface of Ceramic Filter and Its Application to Reaction/Separation System

陶瓷过滤器表面沸石薄膜的制备及其在反应/分离系统中的应用

• 批准号: 05453100
• 负责人: HASHIMOTO Kenji
• 金额: $ 4.48万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05453100/
• 关键词: Zeolite Film; A-type Zeolite; ZSM-5 Zeolite; Ceramic Filter; Pervaporation; CVD; Hydrothermal Synthesis; 水熱合成; ゼオライト; 膜; 高度分離; セラミックフィルター

Zeolites are crystals of alumino-silicate, and have micro pores, the size of which are almost equal to those of hydrocarbon molecules. This pore size reflects on the high shape selectivity of zeolites. However, these zeolites are usually prepared as powdery crystals of 0.1-3 mm in size. Hence, the main objective of this work is to develop the method for preparing zeolites as thin films, and apply the obtained film to the system where the reaction and separation occur at the same position. From experiments we got the following results :1. The thin films of two kinds of zeolites ; A-type zeolite and ZSM-5 zeolite, were prepared on the surface of alumina ceramic filter by the methods developed by us.2. Micro pores, which correspond to amorphous phase of alumino-silicate, were completely eliminated by the technique of chemical vapor deposition. In case of A-type zeolite film, it was, however, difficult to eliminate macro pores, which correspond to the apertures among zeolite crystals. There were to any macro pores of as-grown ZSM-5 zeolite film.3. In the system of toluene-ethanol, the separation factor of ethanol of about 100 was achieved by the pervaporation technique using prepared the ZSM-5 zeolite film.

沸石是铝硅酸盐的晶体，具有微孔，其大小几乎等于碳氢化合物分子的孔。这种孔径反映了沸石的高形选择性。但是，这些沸石通常作为粉状晶体的大小为0.1-3毫米。因此，这项工作的主要目的是开发制备沸石作为薄膜的方法，并将获得的膜应用于反应和分离在同一位置发生的系统。从实验中，我们得到以下结果：1。两种沸石的薄膜； A型沸石和ZSM-5沸石是通过US开发的方法在氧化铝陶瓷过滤器表面制备的。2。与化学蒸气沉积技术完全消除了对应于铝硅酸盐的无定形相的微孔孔。但是，在A型沸石膜的情况下，很难消除与沸石晶体之间的孔径相对应的宏孔。有任何宏观的ZSM-5沸石膜的宏毛孔3。在甲苯 - 乙醇的系统中，使用制备的ZSM-5沸石膜通过透白化技术实现乙醇的分离因子约为100个。

项目成果

T.Masuda: "Preparation of ZSM-5 Zeolite Film on the outer Surface of Alumina Ceramic Filter" Applied Catalysis. 111. 143-150 (1994)

T.Masuda：“在氧化铝陶瓷过滤器外表面制备ZSM-5沸石薄膜”应用催化。

Takao Masuda: "Preparation of an A-type Zeolite Film on the Surface of an Alumina Ceramic Filter" Microporous Materials. 3. 565-571 (1995)

Takao Masuda：“氧化铝陶瓷过滤器表面A型沸石薄膜的制备”微孔材料。

Takao Masuda: "Preparation of A-type Zeolite Film on the Surface of an Alumina Ceramic Filter" Microporous Materials. 3. 565-571 (1995)

Takao Masuda：“氧化铝陶瓷过滤器表面A型沸石薄膜的制备”微孔材料。

T.Masuda: "Preparation of an A-type Zeolite Film on the Surface of Alumina Ceramic Filter" Microporous Materials. 3. 565-571 (1995)

T.Masuda：“氧化铝陶瓷过滤器表面A型沸石薄膜的制备”微孔材料。

Takao Masuda: "Preparation of ZSM-5 Zeolite Film on the Outer Surface of Alumina Ceramic Filter" Applied Catalysis. 111. 143-150 (1994)

Takao Masuda：“氧化铝陶瓷过滤器外表面ZSM-5沸石薄膜的制备”应用催化。