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  1. phex

    Column Scan to identify operational Problems

    Dear all, I'm looking for a service company for a special column scan. A little background at first. We have a process to separate Aromatics from near-boiling Nonaromatics. This is an extractive distillation process using a selective solvent in order to change boiling points and thereby...
  2. phex

    General Question: water-free sweetening

    Hello Forum, I'm looking for alternatives to amine washing for nat gas sweetening, especially molsieve processes or similar. I need a dry sweetewning process due to the setup of this project. The gas is produced on a field with only basic facilities, just for water and condensate removal, no...
  3. phex

    Antisurge control for compressor - location of PT

    I have got a question concerning the location of a pressure transmitter in the discharge line of a turbo-(centrifugal)-compressor. This transmitter is connected to the antisurge control of this compressor. I'll have a try at ascii arts to visualize my problem: C----------------------...
  4. phex

    Strength-temperature relation of ASTM A387 Grade 22

    I'm looking for a relation of maximum yield strength over temperature and maximum tensile strength over temperature for A387 Grade 22 Class 1 & Class 2 pressure vessel plate steel under presence of hydrogen. I need this because we need to know the minimum save temperature to apply pressure to a...
  5. phex

    Problem with pickling of pipes

    Hi fellows. I've got a problem with some pipelines. while pickling some lines (on site) we encountered a black coating on the inside of the pipes. these pipes were new, no process fluid ever touched them. the coating seems to be some kind of plastic, it is inflammable and highly resistant to...
  6. phex

    Qeustion concerning ASTM D2699/2700

    May i redirect readers of this forum to my post in the petroleum refining forum, and ask for help here? in the other forum, noone is willing/able to answer this. http://www.eng-tips.com/viewthread.cfm?SQID=98519&SPID=483&page=1 thanks in advance, chris
  7. phex

    ASTM D2699/D2700 repeatability

    Hi everyone, i need to check if the repeatability and reproducibility data have changed from the 1999 edition of standards D2699 and D2700 (research respectively motor octane test method). The current version is from this year (2004) and i only have above mentioned 99 edition available. In that...
  8. phex

    Max Flow through a pipe

    The easiest things to calculate are often the most difficult to find. i'm feeling rather stupid right now, but can't help asking that question. I'm in the process of sizing instrumentation for a benzene recovery process. out customer requires a hydrocarbon drain to be present, even though we...
  9. phex

    Looking for Manufacturer

    I have received an inquiry concerning the equipment of an on-site-lab for refinery waste water quality control. the customer specified some of the equipments he wants to have, one of those is the "OMS 2" (Oil Measuring System 2), which is an analyser for oil content in the waste water. this is...
  10. phex

    Life Cycle Cost Analysis Handbook

    Not realy on topic, but helpful also for us process engineers: http://www.energyworkshops.org/femp/2002/Modules/handbk.pdf
  11. phex

    Properties of liquid Ethane

    Can someone help me concerning density of liquid ethane? just need some reference to verify our own data. Googling only brings up data for gaseous state (at least on the first few pages). Thanks for your help, chris
  12. phex

    Fisher Control Valve Handbook

    ... can be downloaded for free as pdf file here: http://www.documentation.frco.com/groups/public/documents/book/cvh99.pdf for those of you who don't have it already or have lost their copy. it has pretty much everything there is to know on control valve design as well as much of the neccessary...
  13. phex

    Viscosity-temperature-graphs, looking for form

    I need to make some diagrams by the specifications provided by the customer (lube oil dewaxing, mixture viscosity for oil/solvent-mixtures). to do this, i need a linear abscissa and a double-logarithmic ordinate. i'm willing to use forms without fixed scale, or i'll need a viscosity scale...
  14. phex

    Simultaneous Synthesis of MTBE and ETBE

    has anybody ever coped with this, and can direct me to some papers regarding this topic? i am specifically looking for information regarding the possible by-product MEE (Methyl ethyl ether), kinetic data as well as any other info regarding MEE. Thanks alot for time & help, chris
  15. phex

    Hi all, i'm looking for a defini

    Hi all, i'm looking for a definition text on the term "blending RVP"(RVP = Reid Vapor Pressure). It is used in conjunctioon with fuel blends, especially when its about oxygenated fuels. Although i do know its meaning, i need to know a technical standard (API, ASTM, DIN, EN...) as a...

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