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  1. MidstreamEgr

    Breakout Tank Testing & the DOT

    Can anyone clarify the DOT code for me on tank testing? In 49 CFR 195.307(c) it indicates that testing for API 650 tanks "must be in accordance with Section 5.2 of API Standard 650". But in API 650 2007 (which is the version indicates in the Incorporated by Reference section, Section 5.2...
  2. MidstreamEgr

    Surge Tanks - when to use?

    I'm not a pipeline person (more inside-the-fence terminal piping design), but I've noticed that some pipeline receipt points or pump stations have surge tanks, and some do not. Not familiar with the pipeline-side of the business, I was curious what drives the decision to use it some places and...
  3. MidstreamEgr

    Hot Acid Piping Materials

    Looking for any recommendations for research on piping for a low pH hot system. It's ~1-2pH and 180-225degF. They currently use carbon steel and replace spools often, which may be more cost effective than an exotic material. But this has to be relatively standard operation conditions in...
  4. MidstreamEgr

    Vessel offload - increase throughput/bph

    I have a existing terminal with dock, currently offloading at ~1600bph thru a 8" line to existing tankage. I'm looking for a way to increase throughput to reduce demurrage and overall product throughput. My limitation is the ~100psig max at the vessel's connection, so flowrate is effectively...
  5. MidstreamEgr

    Reverse flow / vortexing question

    I have a system that has two 4" gasoline truck loading-arm metering assemblies fed by a single 6" pump header. Each arm may or may not be operating simultaneously for truck loading. In the 4" branch from the header for each, we are injecting ethanol. This injection is downstream of the common...
  6. MidstreamEgr

    PHMSA/DOT Pipeline Permitting

    I have a client looking at expanding an existing terminal (non-DOT) with pipeline in/out. I believe that, given the fact that it will be a DOT-regulated terminal once they start piping into and out of it, any new work needs to be DOT-compliant and would require full design and drawings. I ask...
  7. MidstreamEgr

    Crude Wax Suspension by Mixing in API tankage

    I have an oilfield project, where the crude has a realtively high wax content (5%-30%). I am looking for a way to keep the wax from dropping out while in tank storage and piping to loadout (to rail and truck). I have been reading about eductors (NciWeb.net/tank.htm) and heating systems. I...
  8. MidstreamEgr

    Crude Wax Suspension by Mixing

    I have an oilfield project, where the crude has a realtively high wax content (5%-30%). I am looking for a way to keep the wax from dropping out while in tank storage and piping to loadout (to rail and truck). I have been reading about eductors (NciWeb.net/tank.htm) and heating systems. I...
  9. MidstreamEgr

    Crude Wax Suspension by Mixing

    I have an oilfield project, where the crude has a realtively high wax content (5%-30%). I am looking for a way to keep the wax from dropping out while in tank storage and piping to loadout (to rail and truck). I have been reading about eductors (NciWeb.net/tank.htm) and heating systems. I...
  10. MidstreamEgr

    Convert Distillation to TVP/RVP

    I am trying to do some preliminary work on a crude project, and have been warned that the particular crude has exhibited high vapor-pressure properties. In the lab assays, I have alot of informtion, but no direct RVP or vapor pressure info. How do I convert to get TVP or RVP? Useing D86...
  11. MidstreamEgr

    Convert Distillation to TVP/RVP

    I am trying to do some preliminary work on a crude project, and have been warned that the particular crude has exhibited high vapor-pressure properties. In the lab assays, I have alot of informtion, but no direct RVP or vapor pressure info. How do I convert to get TVP or RVP? Useing D86...
  12. MidstreamEgr

    Convert Distillation to TVP/RVP

    I am trying to do some preliminary work on a crude project, and have been warned that the particular crude has exhibited high vapor-pressure properties. In the lab assays, I have alot of informtion, but no direct RVP or vapor pressure info. How do I convert to get TVP or RVP? Useing D86...

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