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Recent content by lomli

  1. lomli

    P&ID symbol for flow splitter/joiner

    in P&IDs drawing we don't need symbols to define splitter/joiner. intersections means that the tow stream are joined or on stream is splitted into two streams by means of directional arrows.
  2. lomli

    FIXED OUTLET PRESSURE CONTROL VALVE

    HI WE ARE DESIGNING A GAS RECOVERY SYSTEM FROM A PROPANE REFRIGERATION LOOP. PROPANE VAPORS RECOVERED WILL BE REINJECTED IN A BOIL-OFF SYSTEM TO BE COMPRESSED AND LIQUEFIED AGAIN WITH VAPORS COMING FROM STORAGE TANKS. THE TIE-IN POINT IS LOCATED AT ABOUT 100 M FROM THE RECOVERY POINT IN THE...
  3. lomli

    CENTRIFUGAL , SCREW OR ....

    HI I AM A BEGINNER PROCESS ENGINEER, AND I HAVE TO DESIGN A SIMPLE SYSTEM TO POOR AND DRAIN OIL FROM THE HOT OIL LOOP. THIS SYSTEM WILL BE USED IN CASE OF SIMPLE SHUTDONWN OF THE UNIT FOR MAINTENANCE IN THIS CASE OIL WILL BE AT AMBIANT TEPERATURE. THE SYSTEM CAN BE USED ALSO IN EMERGENCY...
  4. lomli

    CONTROLE VALVE WITH FIXED OUTLET PRESSURE

    HI WE ARE DESIGNING A GAS RECOVERY SYSTEM FROM A PROPANE REFRIGERATION LOOP. PROPANE VAPORS RECOVERED WILL BE REINJECTED IN A BOIL-OFF SYSTEM TO BE COMPRESSED AND LIQUEFIED AGAIN WITH VAPORS COMING FROM STORAGE TANKS. THE TIE-IN POINT IS LOCATED AT ABOUT 100 M FROM THE RECOVERY POINT IN THE...
  5. lomli

    N2 production from air

    hi I need an approximate cost of an on site unit of liquid and gaseous N2 from air, flowrate of about 2000 - 1000 Nm3/h thanks
  6. lomli

    API 5L Gr B

    hi, I 'm a process engineer, i m not a specialiste in materials, my question is: for above ground installations ( filtraion lines 14", metering lines, headers...)for a natural gas pipeline what's the difference between the use of API 5L X70 and API 5L Gr B, which is the most useful and...
  7. lomli

    LPG STORAGE AND HANDLING FACILITES

    HI, my question is about LPG storage facilities(high capcity) what is the greatest capcity for lpg storage and handling facilities that can be constructed and what type of tanks is the most appropriate, if possible examles over the world I need informations about this topic please thank...
  8. lomli

    LPG STORAGE AND HANDLING FACILITES

    HI, my question is about LPG storage facilities(high capcity) what is the greatest capcity for lpg storage and handling facilities that can be constructed and what type of tanks is the most appropriate, if possible examles over the world thank you very much.
  9. lomli

    instrumentation software

    hi, we are a small company of engineering involved in hydrocarbons domaine, and we want to buy a software for instrumentation, other than inttols, is there any powerful software that help instrumentation engineers? thanks
  10. lomli

    reduction of diameter before preure control valve

    thank you very much what about the reduction poition; 1) B vlve - reduction 16x10 - control valv - reduction 10x16 - Blc valv or 2) reduction 16x10 - blc vlv - control valv - blc valv - reduction 10x16 if someone can give me the reference of codes or standards that treat such problems ?
  11. lomli

    reduction of diameter before preure control valve

    hi, we have to install a pressure control valve of 10" with its tow block valves and its bypass on a natural gas line of 16", the control valve will reduce preure from 55 bar to 43 bar, the flow rate i about 200 000 Nm3/hr. so how to determine the bypass diametter ? the block valves (to...
  12. lomli

    how to calculate the reliefing capacity

    thank you matt but I think if all the flowrate will be vented to atm the plant upstream (our costumer)will shuttdown every time the pressure increase in the station, the reliefing capacity is to evacuate just a defined quantity on NG to reach the normal operating pressure. what do you say?
  13. lomli

    Hysys - Dew/Bubble point

    hi every body try to set the graph cotrol and to enlarge the temperature and pressure axis until the tow curves appeare.
  14. lomli

    how to calculate the reliefing capacity

    hi, Please I have to design a pressure reliefing system for a natural gas metering station, and a segment pf pipeline, API standard(521,520)give a formula in which the reliefing capacity is given as a known data but I don't now how i can estimate this value (the quantity of NG to be vented in...
  15. lomli

    fi fan heat exchanger

    thank you very much, M speco

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