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    ZSM-5 Catalyst

    Zeolite ZSM-5 is mainly used for hydrocarbon interconversion, meta-xylene to para-xylene, for example. ZSM-5 is a zeolite with a high silica to alumina ratio. The substitution of an aluminum ion

    1. detailed information

    Zeolite ZSM-5 is mainly used for hydrocarbon interconversion, meta-xylene to para-xylene, for example. ZSM-5 is a zeolite with a high silica to alumina ratio. The substitution of an aluminum ion (charge 3+) for a silicon ion (charge 4+) requires the additional presence of a proton. This additional proton gives the zeolite a high level of acidity, which causes its activity. ZSM-5 is a highly porous material and throughout its structure it has an intersecting two-dimensional pore structure.

    Zeolite ZSM-5 has two types of pores, both formed by 10-membered oxygen rings. The first of these pores is straight and elliptical in cross section, the second pores intersect the straight pores at right angles, in a zig-zag pattern and are circular in cross section.

    Application:

    1. Zeolite ZSM - 5 molecular sieve used for FCC catalyst: conventional SiO2 / Al2O3 ratio is between 40 to 50

    2. Zeolite ZSM - 5 molecular sieve used for FCC gasoline additives to reduce the olefin: conventional SiO2 / Al2O3 ratio is between 38 to 40

    3. Zeolite ZSM - 5 molecular sieve used for resid catalytic cracking: conventional SiO2 / Al2O3 ratio is between 25 to 30

    4. Zeolite ZSM - 5 molecular sieves in chemical industry, fine chemical industry is widely used in shape-selective catalysis, such as diethylbenzene catalyst, xylene isomerization catalyst, ethyl acetate, ethylene glycol, ethylene glycol butyl ether of catalyst has a wide range of USES

    Technical parameters: 

    Type

    SiO2/Al2O3 Mole Ratio

    Nominal Cation Form

    Na2O Weight %

    Surface Area m2/g

    YH-11

    23

    Ammonium

    0.05

    425

    YH-12

    30

    Ammonium

    0.05

    405

    YH-13

    50

    Ammonium

    0.05

    425

    YH-14

    80

    Ammonium

    0.05

    425

    YH-15

    280

    Ammonium

    0.05

    400


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