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  • Users: diapensiya
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  1. diapensiya

    Monitoring waste water COD/TOC/load

    In our plant we have a wastewater tank. At the outlet of this tank, TOC is measured. When TOC exceeds certain value, there is an alarm in the control room. The operators are expected to find the root cause of the high load. However, there are multiple inlets (from different unit operations) to...
  2. diapensiya

    lowest vacuum achievable in a vacuum distillation column

    I want to separate two high boiling point components from each other. (Atmospheric Boiling points 250-300C vs 300-500 C) Thus, I need deep vacuum. I investigate the option of using a traditional vacuum distillation unit followed by an evaporator. (There are other options I am investigating as...
  3. diapensiya

    flow characteristic rotary steam valve

    Hello, In our plant, we have a steam valve which controls MP steam flow to a reboiler of a distillation column. I investigate whether it is possible to increase flow through this steam valve by changing the valve (internals). The type according to documents is Masoneilan Camflex. Exact details...
  4. diapensiya

    Mixing viscous liquids in storage tanks

    How can you mix a 55 m3 atmospheric storage tank with a viscous liquid (different products are stored) in the range of 200 to 6000 cp without using a mixer with huge motor?
  5. diapensiya

    Sizing orifice at cooling water outlet of condenser

    What is the purpose of an orifice at cooling water of a condenser ? How should it be sized ?
  6. diapensiya

    API rules about coolant temperature inlet for compressors

    Hi all, I have question about a statement in API standard 618 with respect to cooling systems in compressors. It is stated that coolant inlet temperature shall be 5K above the inlet gas temperature. Do you know the source of this rule ? Is this a general recommendation to increase the life of...
  7. diapensiya

    how do conductivity meters measure at winter conditions ?

    Hello all, I have been working on a system which requires (electrical) conductivity measurement of organic metarial in an aqueous stream. The aim is to prevent organic material to end up in drain lines. This is done by shutting off the valve on the pipeline when the conductivity meter shows...
  8. diapensiya

    how to prevent temperature increase in pump system

    Hello, I have been working on a system which consists of a tank (at atmospheric pressure), centrifugal pump (normal operation flow rate is within 28-46 m3/h, during startup up to 100 m3/h) , and a column (around 2.5 barg)as end destination. Before the column, there is an heat exchanger which...

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