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FCC riser

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This topic contains 1 reply, has 1 voice, and was last updated by  Anonymous 11 years ago.

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  • #1969

    Freddy Martinez

    My question is related to the collection of data for the species along the riser height.
    I find in most papers, the actual product Yields at the Riser only at the Exit. Why is this so ? Is it not possible to collect data for the individual species along the riser height ?

    If you can give me some detailed information on the difficulties involved with obtaining experimental data for this system, it would be really very helpful for me. I am searching for some relevant information in this area.

  • #4743


    It is not possible to collect physical samples at different heights in the riser in an industrial unit.  The riser in a commercial unit does not have any sample collectors. Products are collected after fractionation, both in the main fractionator or in the gas concentration unit.
    The only way in which you could simulate what you want to study is through rigurous process modelling or at small scale, in an FCC pilot plant with a riser specially designed to collect samples at different heights or using several reactors of different heights

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