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Recent content by macabihaifa

  1. macabihaifa

    MATERIALS OF CONSTRUCTION RECIPROCATING COMPRESSORS

    Hello, We intend to compress H2S gas from 0.8 to 45 barg with a reciprocating compressor, 90% mol H2S, 3% water and 7% hydrocarbons. The water are in the gas phase. What are the options for the MOC for the parts in contact with the H2S gas stream? is SS316 suitable (e.g. the cylinders etc.) ...
  2. macabihaifa

    SULFUR PLANT: LOCATION OF VALVE AT OUTLET FROM SEAL LEG

    Hello, On the outlet line from the seal leg (the line is self draining, traced and insulated) we intend to install a valve, it seems better to install it near the seal leg but it is inconvenient since it is at a high point with no space to operate or maintain, on the other hand we can install it...
  3. macabihaifa

    VERY LONG LINE WITH FLOW METERING STATIONS

    Thank you, But I will also prepare a drawing of the line with tie-ins A1 & A2 (inlet / outlet) , B1 & B2, etc for each installation. Regards
  4. macabihaifa

    VERY LONG LINE WITH FLOW METERING STATIONS

    Hello, A long (50 km) petroleum underground pipe is designed to have a flow metering station every 2 km. How can I draw a P&ID to show one typical metering station which will be repeated 25 times ? A simple sketch will be helpful. regards
  5. macabihaifa

    H2S 90%MOL : PIPING MATERIAL OF CONSTRUCTION

    Thank you, the piping is insulated and there are no chlorides.
  6. macabihaifa

    H2S 90%MOL : PIPING MATERIAL OF CONSTRUCTION

    forty five barg, yes it is a gas stream
  7. macabihaifa

    H2S 90%MOL : PIPING MATERIAL OF CONSTRUCTION

    OK, THANKS, CO2: 1.1 % MOL MERCAPTANS: 5.3% MOL H2O: 3.6 % MOL H2S:90 % MOL REGARDS
  8. macabihaifa

    H2S 90%MOL : PIPING MATERIAL OF CONSTRUCTION

    Hello, What is recommended for the piping material of construction for h2s gas at 120 C and 45 barg. regards
  9. macabihaifa

    PIPING TWO 100% PSV's IN PARALLEL

    Hello, when installing two 100% PSV's in parallel, one open and the second closed, what will be recommended and good engineering practice from the mechanical point of view (reaction force in operation) and from piping design as pressure drop (3% of set pressure in inlet piping): to use 3-way...
  10. macabihaifa

    Reciprocating compressors

    Hello all, A compressor with a total of 4 stages, the first two with a common motor and the last two stages also with a common separate motor. Can I use another stand by compressor with two stages to operate as the two first stages and if needed also to operate as the last stages? Regards...
  11. macabihaifa

    Cooling lubricant/emulsion treatment for the metal processing industry

    Hello, In oeder to improve economics and enviromental aspects of a/m subject, does a continuous treatment exists so there is no down time of the metal processing machine? What are the main features of such a system? a process flow diagram or block diagram can be helpful. Regards...
  12. macabihaifa

    HEAT EXCHANGER RELIEF VALVE - API 521 6th edition

    Hello, According to API 521 a relief valve is not required in the case of tube rupture if the design pressure of the low side pressure is 10/13 of the high pressure design pressure. For example: if the high pressure side design pressure is 26 barg we set the design pressure of the low side...

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