Modification method of SAPO-34 molecular sieve



The invention creatively provides a modification method of a SAPO-34 molecular sieve. The method includes: conducting a first modification on a SAPO-34 molecular sieve raw powder in a first modifier; and conducting a second modification in a second modifier. The first modifier is a compound or mixture capable of ionizing phosphate (PO4<3->), and the second modifier is organic alkali or a mixture thereof. The invention can improve the anti-coking formation performance and catalytic properties of the SAPO-34 molecular sieve catalyst in a methanol-to-olefins reaction, and also has high yield and long service life, is beneficial to industrial amplification production, and has obvious economic applicability.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    CN-101121531-AFebruary 13, 2008中国科学院大连化学物理研究所Phosphorus modifying method for pinhole phosphorus-silicon-aluminum molecular sieve
    CN-101121532-AFebruary 13, 2008中国科学院大连化学物理研究所一种小孔磷硅铝分子筛的金属改性方法
    CN-101633509-AJanuary 27, 2010中国石油化工股份有限公司;中国石油化工股份有限公司石油化工科学研究院一种磷酸硅铝分子筛的改性方法
    CN-105036153-ANovember 11, 2015中国天辰工程有限公司, 天津天辰绿色能源工程技术研发有限公司Modification method of SAPO-34 molecular sieve

NO-Patent Citations (0)


Cited By (0)

    Publication numberPublication dateAssigneeTitle