Preparation method of SAPO-34 molecular sieve membrane



The invention provides a preparation method of a SAPO-34 molecular sieve membrane. The method is characterized in that a specific zeolite molecular sieve is employed as a silicon source. A continuous compact SAPO-34 molecular sieve thin film is formed on a surface of a porous ceramic supporting body, namely, a layer of the SAPO-34 molecular sieve membrane is grown on the porous ceramic supporting body with a crystalline state zeolite molecular sieve being the silicon source. A structure unit of the molecular sieve is same as that of SAPO-34. Crystal nucleus are provided for crystallization of a SAPO-34 molecular sieve and a synthesis time of the membrane is shortened. In addition, the content of silicon in the SAPO-34 molecular sieve membrane can be adjusted within a large range. The membrane has a preferable selectivity on CO2 and a high permeation flux and separation selectivity when being used for separating mixing systems of CO2/CH4.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    CN-103896300-AJuly 02, 2014中国科学院上海高等研究院高性能sapo-34分子筛膜的制备方法
    CN-103922361-AJuly 16, 2014江西师范大学Preparation method of SAPO-17 molecular sieves
    CN-1314587-CMay 09, 2007南京工业大学Process for prepareing SAPO-34 molecular siever
    CN-1693202-ANovember 09, 2005南京工业大学一种sapo-34分子筛的制备方法
    WO-2010011420-A1January 28, 2010Exxonmobil Chemical Patents Inc.Synthèse de tamis moléculaires contenant de la chabazite et leur utilisation pour la conversion de composés oxygénés en oléfines

NO-Patent Citations (1)

    ERIC W. PING等: "Seeded-gel synthesis of SAPO-34 single channel and monolith membranes,for CO2/CH4 separations", 《JOURNAL OF MEMBRANE SCIENCE》, vol. 415416, 5 June 2012 (2012-06-05), XP055058051, DOI: doi:10.1016/j.memsci.2012.05.068

Cited By (2)

    Publication numberPublication dateAssigneeTitle
    CN-105251374-AJanuary 20, 2016南京工业大学Preparation method of nanoscale surface defect crystal seed induced SAPO-34 molecular sieve membrane
    CN-106943889-AJuly 14, 2017郝至臻一种片式膜的制备方法