High dp in converter.

Forums Process & Operational Ammonia High dp in converter.

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  • #43527
    Participant

      We are facing high dp issue in convertor while process parameters are normal at all beds except 2nd bed lower temperature 12C.
      Please share your experience.

      #43788
      Participant

        Hi,
        While difficult to discuss with lack of converter details a couple thoughts:
        a. if axial flow perhaps catalyst milling or screen failure
        b. if radial perhaps Inconel screen failure and catalyst migration to a location withj much smallewr cross sectional area.

        #43861
        Participant

          Good day Naseemce,

          With regards your earlier concern, high so could also be an indication of sintered or fused catalyst (assuming you’re talking about the synthesis converter). This could have resulted from operating the converter at a higher temperature or pressure than design for a considerable amount of time. I hope you find this helpful, because we had a similar issue with our high temperature shift converter where I currently work. Have a great day ahead

          #43874
          Participant

            You can check all the valve control temperatures.

            #43876
            Participant

              we have casale design convertor of ammonia . how you will identify the source of high differential pressure

              #43879
              Participant

                Converter catalyst doesn’t get deactivated significantly.

                We have experienced high dP in converter beds only due to the failure of internals. Please refer to my AIChE paper on this.

                #49263
                Participant

                  COUL BE DUE TO CATALYST DUST CUMULATION , CATALYST LUMP OR CATALYST BLOCKING LOWER HEAT EXCHANGER

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