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Thanks, Cryotechnic! "Roughly" is good enough!

Could someone tell me the volumetric expansion for air, liquid to gas?

That's what the modifications are for. This tanker will be for bulk storage of LAir, with "zero" oxygen enrichment, and "zero" stratification.

Will definately have to inert the tanker before tearing into it, but we do have to cut into the annular space. The perlite will have to be removed. That's why I'm looking for one that's in need of refurb, so I won't feel so bad about tearing it up. This tanker (liquid air)will end up being a...

Thanks again!

The only thing I know is that H2 causes embrittlement in 17-4 PH stainless. 304 and 316 shouldnt be a problem, but I don't know anything about mercaptans. Also, why can't you just sub-cool the liquid and transport at a lower pressure?

Thanks! I work for a contractor too, but hopefully not for long. The tanker would be a prototype that will need modifications, so refurb will be necessary later. I would like to start cutting and welding early next year.

Perfect! Would you mind doing the same calculations for LN2? Thanks!

Make them yourself out of blocks of virgin teflon, or phenolic.

I would want to have an inert purge capability for the transfer and vent plumbing. Oh, and a good ground. Also, any electric gear nearby needs to be explosion proof. Other than that, the LN2 hardware should work.

Tango, this would be for a liquid air mix of O2 20%, N2 80%, with a pressure range, 5 to 25 psig. For instance, at a saturation press of 5 psi, what would be the temp? What would be the respective temperatures for pressure saturations of 5, 10, 15, 20, and 25 psig respectively?

Does anyone know where I can get a used LO2 tanker, 4000 to 5000 gallon capacity? I would prefer one that is in need of refurbishment.

I'm looking for a phase chart that shows temp as a function of pressure, for an 80%N2/20%O2 mixture of liquid air.