Quote:
Originally Posted by Xringer
Sounds like you could leave your BBQ tank upside down when it was really cold out.. below -15C ??
And then open the valve to see if there was any water inside..
If there was a lot, it should be in a solid form and nothing would come out of the tank.?.
Or, maybe there's an oil+water mix, and it would be greasy, and ooze out as sludge.?.
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Hi Xringer/BradC
Acc. to the Finnish standard the H20 should be max.<200ppm (=200mg H2O per 1kg BBQ-gas)(one drop of H2O = abt. 50mg ...99mg!) .
After deep-freeze-treatment there will be practically 3 phases in the vessel:
The heaviest H2O-rich layer at the bottom maybe frozen or not ... depending on whether the propane is "arctic" type (added methanol) or "sommer" type.
In Australia mehanol-treatment propably not feasible?In North-US/Canada YES!
Depending how your BBQ-tank is positioned in the freezer you may tapp
out this H2O-rich (+methanol) portion or
- the layer is maybe located as frozen against the steel surface locally.Maybe not wise to position the tank in upside-down-mode if interested to get something out from the taphole!You might still get it out by slightly heating the zone by torch!
However not wise to exploit the
methanol-doped BBQ-gas at all due probably there will be remains left in the ballast and I feel this is not good for the future activities!
If "sipfon"-type(?) tanks (equipped with a pipe from taphole to bottom area) available ,it gives you more options.
BradC,when creating the refinery,let me be the partner!