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Recent content by wjkang

  1. wjkang

    Ultra filtration membrane for Biodiesel purification

    I'm looking for ultra filtration membrane for Biodiesel purification. I found some article and patent relating Biodiesel ultra filtration. Have anybody known suitable membrane for biodiesel or biodiesel company that is using ultra membrane system?
  2. wjkang

    Liquid movement in liquid

    I want to estimate the distance to which liquid flow can reach. I have circle tank with 6.6 m diameter and 6 m height. Through 1.5 inch inlet pipeline, liquid is pumped into this tank as 3 m3/hr flowrate. At the inlet nozzle, the liquid velocity could estimated as 0.754 m/sec. How can I...
  3. wjkang

    Pressure of liquid nitrogen vessel is always over maximum pressure

    Thanks all, I miss some information of operation. This vessel is a VIE with 16 bar of MAWP and have economizer. Nitrogen has been used for tank blanketing gas. But I have not use nitrogen for two months. I heard that nitrogen in VIE could vaporize naturally. Can a natural vaporization increase...
  4. wjkang

    Pressure of liquid nitrogen vessel is always over maximum pressure

    I have a liquid nitrogen storage vessel. One month ago, the pressure had have been controlled under 8 bar by safety valve. 8 bar was normal operation pressure of this vessel. Recently, the pressure of this vessel have increased over 16 bar. 16 bar is setting pressure of safety valve on this...
  5. wjkang

    Chemical oxidation with Jet injection

    Some one tells, "Without other boring equipments, oxidant could be injected into the subsurface by jet injection.. " Is it possible?? don't need any other boring equipments really??

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