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    I've just been reading about Zeolite being used as the catalyst for cracking, as opposed to Al2O3 and the like. I had a few questions...

    What exactly is zeolite?

    Are there any advantages to using it?

    Why is it being used instead of the traditional catalysts? More efficient?
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    (Original post by aylasira)
    I've just been reading about Zeolite being used as the catalyst for cracking, as opposed to Al2O3 and the like. I had a few questions...

    What exactly is zeolite?

    Are there any advantages to using it?

    Why is it being used instead of the traditional catalysts? More efficient?
    I am just surprised your first thought isn't to wiki it, anyway here it is, from wikipedia:

    Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents

    I would think that:
    i) as a catalyst, bigger surface area is great, and it being microporous is a good thing

    ii) commercial use - industrial use means it should be readily available at a reasonable price; though catalysts are resusable, you don't want a catalyst that can be contaminated with the reaction you use it for.

    iii) in labs, for small scale cracking, Al2O3 will do most of the time.
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    In a catalysed reaction, the pressure is lower, which i guess is cheaper so economically, it is benficial ?
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    (Original post by aakrai)
    In a catalysed reaction, the pressure is lower, which i guess is cheaper so economically, it is benficial ?
    why is pressure lower in a catalysed reaction? in haber process, the pressure is quite high compared to atmospheric pressure
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    (Original post by shengoc)
    why is pressure lower in a catalysed reaction? in haber process, the pressure is quite high compared to atmospheric pressure
    oooooooo, im talking about catalytic cracking, in which the pressure is lower (relative to thermal cracking)
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    I had wiki-ed it, and googled it and everything in between. But i thought TSR could provide some other information and insight.

    Thank you both of you!
 
 
 
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