- 专利标题: Pervaporation and Vapor-Permeation Separation of Gas-Liquid Mixtures and Liquid Mistures by SAPO-34 Molecular Sieve Membrane Prepared in Dry-Gel Process
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申请号: US15547923申请日: 2016-02-02
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公开(公告)号: US20180021728A1公开(公告)日: 2018-01-25
- 发明人: Daniel Curulla-Ferre , Yuhan Sun , Zhiqiang Sun , Yanfeng Zhang
- 申请人: Shanghai Advanced Research Institute, Chinese Academy of Sciences , Shanxi Lu'An Enviromental Protection & Energy Development Co., Ltd. , Total Raffinage Chimie
- 申请人地址: CN Shanghai
- 专利权人: Shanghai Advanced Research Institute, Chinese Academy of Sciences
- 当前专利权人: Shanghai Advanced Research Institute, Chinese Academy of Sciences
- 当前专利权人地址: CN Shanghai
- 优先权: CN201510054314.4 20150203
- 国际申请: PCT/EP2016/052208 WO 20160202
- 主分类号: B01D61/36
- IPC分类号: B01D61/36 ; B01D71/02 ; C01B39/54 ; B01D69/10 ; C07C68/08 ; B01D19/00 ; B01D67/00
摘要:
The invention discloses a method for the pervaporation and vapor-permeation separation of a gas-liquid mixture or a liquid mixture by a SAPO-34 molecular sieve membrane prepared in a dry gel process, comprising: 1) synthesis of SAPO-34 molecular sieve seeds; 2) coating the SAPO-34 seeds on a porous support; 3) preparation of a mother liquor for dry gel synthesis of SAPO-34 molecular sieve membrane; 4) supporting the mother liquor for dry gel synthesis on the porous support coated with SAPO molecular sieve seeds and drying; 5) placing the porous support prepared in step 4) into a reaction vessel, adding a solvent, performing crystallization of the dry gel; 6) calcining; 7) using the SAPO-34 molecular sieve membrane obtained from step 6) to perform separation of a gas-liquid mixture or a liquid mixture by a process of pervaporation separation or vapor-permeation separation. The invention has the advantages of very high methanol selectivity and permeation flux, lowering synthesis cost of molecular sieve membrane and lowering environment pollution.