We have an LO2 tanker, 3,600 gallon capacity, that is currently inactive and in need of recertification and refurbishment. I work for a contractor, not the owner of the equipment. I'll see what I can find out. Owner doesn't like to part with stuff like that.
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.
Make sure that when you start welding/cutting and other stuff to the tank that you purge your tank thoroughly with N2!!
Also take care that you don't destroy the vacuum insulation of the tank.
I don't now the regulations for these tanks in the States, but after making modifications, you probably need recertification (also depening if you want to use the tanker for LOX again)
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 testbed and may never go over the road, so I don't know yet what that will mean for certification. Any welding will be done by certified welders.
Ok Claybo, it sounds you know what your doing. There are many people who underestimate the dangers of oxygen, so that's why I posted.
I also don't know what it means for the certification when you don't use it on the road. I can imagine, since your using it as a stationary storage tank, that you need a license/permit from local authorities, I don't know. It also depends on the total amount of liquid air etc.
Make sure you have a good circulation in the tank. If you store the liquid air and let it stay there is a change of separation. The nitrogen will go out, what's left will be enriched air (enriched with Oxygen)