Simultaneous Reaction and High Separation Processes by Use of Catalytic Zeolite Membrane

利用催化沸石膜的同时反应和高度分离过程

基本信息

批准号：
11650799
负责人：
MASUDA Takao
金额：
$ 2.37万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650799/
关键词：
Zeolite membrane Catalytic membrane Hydrogen separation Reaction and separation Pervaporation Control of pore size Acetic acid Reaction of methanol 水素分離膜細孔径制御法シラン接触分解法高度分離膜

项目摘要

Zeolites are crystalline alumino-silicate, and widely used as catalysts and adsorbents. MFI-type zeolite has fine pores within its crystals, the diameter of which is almost the same as the molecular size of benzene. Hence, the zeolite shows high molecular-sieving effect. When the zeolite is succeeded to be prepare in the shape of membrane, the membrane can enable to realize new separation and simultaneous reaction and separation with high performance. The main objective of this project is to development of MFI-type zeolite catalytic membrane, and to apply it to high separation and simultaneous reaction and separation processes. We obtained the following results through this research work :In fiscal year of 1999 :(1) MFI-type catalytic membrane was succeeded to prepared without any pin-holes by a new method, wellmixed hydrothermal synthesis.(2) When this membrane was applied to the pervaporation of concentrated acetic acid solutions, this membrane allowed only water to permeate in the r … More ange of the concentration of acetic acid from 30 to 98wt%.(3) We developed a new method, called "Catalytic Cracking of Silane (CCS) method", for decreasing the pore diameter of zeolite. The zeolite membrane treated by this method showed high separation factor of H_2 from mixture gases of H_2 and N_2 or O_2, about 100, as compared with 1.4 to 3 for a fresh zeolite membrane.In fiscal year of 2000 :Zeolites are crystalline alumino-silicate, and widely used as catalysts and adsorbents. MFI-type zeolite has fine pores within its crystals, the diameter of which is almost the same as the molecular size of benzene. Hence, the zeolite shows high molecular-sieving effect. When the zeolite is succeeded to be prepare in the shape of membrane, the membrane can enable to realize new separation and simultaneous reaction and separation with high performance. The main objective of this project is to development of MFI-type zeolite catalytic membrane, and to apply it to high separation and simultaneous reaction and separation processes. We obtained the following results through this research work : Less

沸石是结晶硅铝酸盐，广泛用作催化剂和吸附剂。MFI型沸石的晶体内具有细孔，其直径几乎与苯的分子大小相同，因此沸石表现出高分子筛分性。当沸石成功制备成膜状时，该膜能够实现新型分离以及高性能的同时反应和分离。开发了MFI型沸石催化膜，并将其应用于高分离度和同时反应和分离过程中。通过这项研究工作，我们获得了以下成果： 1999财年：（1）成功实现了MFI型催化膜。采用混合水热合成新方法制备出无针孔的膜。(2)将该膜应用于浓乙酸溶液的渗透蒸发时，该膜只允许水透过乙酸的浓度范围从30wt％到98wt％。(3)我们开发了一种新方法，称为“硅烷催化裂化(CCS)法”，用于减小沸石的孔径。该方法显示H_2从H_2和N_2或O_2的混合气体中分离系数较高，约为100，而新鲜的分离系数为1.4至3沸石膜。2000财年：沸石是结晶硅铝酸盐，广泛用作催化剂和吸附剂。MFI型沸石晶体内有细孔，其直径几乎与苯的分子大小相同。因此，沸石表现出高分子筛分作用，当将沸石成功制备成膜状时，该膜可以实现新的分离和分离。本项目的主要目标是开发MFI型沸石催化膜，并将其应用于高分离度和同时反应分离过程中，通过这项研究工作，我们获得了以下成果：