Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    0
    ReputationRep:
    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?
    Offline

    11
    ReputationRep:
    (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.
    Offline

    0
    ReputationRep:
    In a catalysed reaction, the pressure is lower, which i guess is cheaper so economically, it is benficial ?
    Offline

    11
    ReputationRep:
    (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
    Offline

    0
    ReputationRep:
    (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)
    • Thread Starter
    Offline

    0
    ReputationRep:
    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!
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Has a teacher ever helped you cheat?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Write a reply...
    Reply
    Hide
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.