Anyone here ever tried pressing oilseed? Being that you can run deisel engines (best if slightly modified), oil lamps and cook with oils like sunflower seed and peanut or flax (also good for textiles), I was thinking being able to raise a small crop of oilseed and press it yourself would be of extreme value "post peak". I was curious if anyone has tried/had any success with this. Imagine.... an acre of sunflowers will get you almost a hundred gallons of fuel/cooking oil as well as nearly a ton of leftover seedcake that makes great livestock feed. I'm not sure, but I'd bet the seedcake would also be ok used in a woodburning stove. What a great crop! .
This site contains a good deal of information on small scale oilseed extraction. http://attra.ncat.org/attra-pub/oilseed.html#sunflower This is a more extensive pdf publication from the same organization http://www.green-trust.org/2000/biofuel/oilseed.pdf Here are instructions for building an oil press and extraction equipment suitable for home use http://journeytoforever.org/biofuel_library/oilpress.html
One thing I read was that the good old garden variety sunflowers yield less oil than the specialty varieties intended for oil production.
Now here is what I'm talkin 'bout http://cgi.ebay.com/NEW-OIL-PRESS-D...itemZ7604231387QQcategoryZ11752QQcmdZViewItem Serious oil pressin goin on! .
You do not need to press it to get the oil out all you have to do is put it in a piece of PVC pipe, cap both ends with a cap that has a fitting on one and a hole in other one. Mount the pipe so that end with the hole in it is on bottom. Hook a LP tank setup to give liquid LP, hook it to the fitting. Turn on the gas and out comes the oil from the other end. The hard part is recovering the LP.
Is it the pressure from the LP creating a sufficient psi to extract/press the oil? Any idea what the yield would be per lb of LP?