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Recent content by chela

  1. chela

    Injecting CO2

    Dear BirkATO, I would summarise a solution for you: In the first phase, go for a manifold with double or triple the required number of cylinders connected say 8 or 12- immediately, you will get a higher flow and higher pressure. You can also heat the cylinders with cooling water so that the...
  2. chela

    Reboiler with hydraulic loop to condensate drum liquid hammer problem

    Dear Renier, Have you checked the shell side is having any problem of cycling? Your problem typically sounds like an unsteady state on the column side pressure or column bottom level. This cycle can be self perpetuating with the cycling on the steam flow. put all these controls on...
  3. chela

    Vapor pressure as a function of...?

    I would like to add my 2 cents to the discussion. Normally vapour pressures are expressed in absolute pressure units( though nobody speifically mentions this in a Lab report, Or in a discussion for example) and Actual field pressure measurements are in gauge pressures.This has led many times to...
  4. chela

    Condensate splitter

    Dear Baby, Let me tell you something from experience: Condenasates are ultra-light crudes having upto 98% ditillates(boiling below 360Deg C). Of course not all of them are so good. Some have upto 20% heavy ends(360DEgC +). They have naphtha ranging from 25% to 75%. Around 20 to 40% Kerosine and...
  5. chela

    Hi friends, I have a temperature co

    Thanks. If it does not voilate yr company policy, Can you share the control scheme with me ( My e-mail address is :krs_mani77@yahoo.com. thanks in advance
  6. chela

    Hi friends, I have a temperature co

    Thanks hacksaw for the fast and right response. The Desuperheater is a typical atemperator, where BFW is injected into the Superheated steam line going to the second stage ( High temperature)superheater coil. the BFW flow is controlled by a TIC getting impulse from the final SHP temperature...
  7. chela

    Hi friends, I have a temperature co

    Hi friends, I have a temperature control problem. We produce SHP (128Kg/cm2 and 540 Deg C) steam in our Ethylene Cracker heaters in the transfer line exchangers ( for quenching the cracking reaction). As the material of construction has a limit of 545Deg C, the trip setting for the heater is set...
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