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Recent content by mariatr

  1. mariatr

    return tray for side reboiler

    Hi. I think that there shouldn´t be confusion because there is no disagreement between my two posts. Maybe the statements are not very well explained, but they are correct. To clarify the posts I´ll say that taking the side draw from tray "x" and returning to tray "x" produces an important...
  2. mariatr

    return tray for side reboiler

    Why cannnot we asume mass transfer in that tray? vapor maldistribution? For Umesh,the feed tray is well located Thanks
  3. mariatr

    return tray for side reboiler

    Hi We held the purity constant (weight percents of light and heavy keys in distillate and residue) as specs for the simulation (two design specifications) The question of using the feed tray as the suply to the side reboiler is just a matter of LMTD with the external heat source. The tray...
  4. mariatr

    return tray for side reboiler

    Hi We are aware of the important differences in the simulation when we change the return tray location. If we return to the column in the same tray as the feed (21st tray), the effect is exactly the same as preheating the feed. The main problem in this scenario is that reflux increases a lot...
  5. mariatr

    return tray for side reboiler

    We are considering the installation of a new side reboiler in one of our distillation columns. We have a process stream that is now being cooled down in an air cooler and we could use this stream as a heat source for this side reboiler, with high energy savings. In the column the traffic is...

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