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Recent content by danthemeterman

  1. danthemeterman

    Relative density vs specific gravity = ? pressure

    Z, Unfortunately my predictions are based on the product shipped by the refiner, IE: BOL. Thanks I'll look at the link you sent. Thanks to all of you.
  2. danthemeterman

    Relative density vs specific gravity = ? pressure

    BI, I do appreciate all the statistics which I have memorized from years ago, 75% of my business is in calibration of LPG meters, so you can understand that compensation, SG, pressure correction are all very very familiar territories for me. A hydrometer/densitometer are not in my list of...
  3. danthemeterman

    Relative density vs specific gravity = ? pressure

    Simply put, the Liquid Propane(you would visualize leaks) comes in on rail, the rail cars are allowed to be static for a period of time so as to allow them to settle(sloshing), they are stick read(bleed out)and compared to the figures sent by the loading facility(refinery), they temperature...
  4. danthemeterman

    Relative density vs specific gravity = ? pressure

    OK, I was hoping a simplified question would suffice. You have more knowledge of the chemical properties than I do. I didn't believe the mass meter's reading of .5535 +- density. My experience is listed above. The reason for measuring volumetrically is my competition was in with their small...
  5. danthemeterman

    LPG Transfer system

    Depending on the size of your pump, station, line and environment(as someone said,to little info), you can hot tap( check with management and local codes), bypassing the flow stream or when you have the access to the stream during down time, it is not difficult to build at each station a bypass...
  6. danthemeterman

    Relative density vs specific gravity = ? pressure

    One of the previous posts reminds me of a situation I ran into last week. Is there a chart which could at least loosely suggest a nominal density of propane based on visual indicators of pressure and specific gravity. I am for the 1st time testing a mass flow meter, we can not get repeatability...
  7. danthemeterman

    Cryo system design.

    dcasto! I know, so any suggestions ? Thank you ! Sincerely.
  8. danthemeterman

    Cryo system design.

    Ok, now I am at the point where I need to start compiling all your great info, and some from other engineers I found to find out if this is feesible(?)I have looked all through this site to find out how to contact people to know avail. I fully expect this post to be rejected, and hopefully when...
  9. danthemeterman

    Help with valves for a dewar

    Paul, I use the following company for Rego LPG equipment. They are a verygood distributor. If they can't help you, they'll tell you where you can go. I hope this isn't out of ET's rules of use. http://www.lpgandnh3.com/contactinformation.htm
  10. danthemeterman

    Cryo system design.

    OK guys, this is all I have for now. Do you still have interest ? 55-65% methane, 30-35% carbon dioxide, with some hydrogen, nitrogen and other traces.
  11. danthemeterman

    Cryo system design.

    It is only 60% methane. I am working on getting the rest.
  12. danthemeterman

    Cryo system design.

    dcasto and nuts(sorry, just couldn't resist). I'll start with this. In order for this system, it needs to be on sight, locally of the methane. IE: feet form gas inlet. Sorry for being a bit ignorant and to lazy tonight to Google, but what is LIN (Liquid nitrogen) ? Also, can you simplify...
  13. danthemeterman

    Cryo system design.

    Approxiamately 200+ gals/day . Maybe as much as 300. Don't laugh yet. What did/would yours cost, and what was the gas analysis at best ? If I may ask.
  14. danthemeterman

    Cryo system design.

    Thank you "someguy". The project just hit it's first wall, a major hurdle. There is more startup capitol needed than is currently budgeted. That being said, I was hoping to put together a package form scratch. I called around and found a firm that does turnkey, and the funds are not there...
  15. danthemeterman

    Cryo system design.

    Good point. I'll keep it in mind.
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