Another question
so when the butane is recovered back as a liquid how do we re use that liquid and put it into a pressurized state where we can blast it again?
Hey guys, I was out in Chicago for a few days. Back now, and the vac pump and hose, some parts, etc are here. So, I think it is time to begin to think about my instructions to me.
First, here is an overview of the process.
-make LP5 Butane tank warm in water
- make the equipment cold, in a salt Ice bath.
- draw extractor to high vacuum (I got down to 3500 microns on the jug, testing last night)
- close valves
- get vacuum weight of cold jug
- calculate weight of 1.5 liters of liquid butane (for my 2 liter jug)
- connect hoses and open valves
- weigh in the butane (critical, do not over fill)
- close valves
- rescue butane tank from warm water and towel dry against rust.
- store LP5 tank with approved method
- jug of butane ready to go
- pack cold column with dry/cold material
- hold jug above, cold receiver
- open valves
- pour butane into receiver, slowly
- close valves
- invert receiver after all butane is through
- let butane soak material
- turn receiver upright and butane goes through 3rd time
- make receiver 115F in water bath
- re-cool jug in salt bath
- connect hose
- open valves
- butane returns as vapor to condense in cold jug
- when the jug is the right weight again, all the butane is back
I WILL NOT put that butane back in the LP5 tank. I am worried it will slowly pick up water vapor and other light gases, and I don't want to introduce used butane back into my 14 pound of pure butane.
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