Super Critical Fluid Extraction (S.F.E.)

melungeonman said:

Over the years I've had the opertunity to teach several people how to make "honey oil" useing the Supercritical Fluid Extraction method (S.F.E) for short. Many of these people have gone on to reaserch methods of constructing shoestring devices to do the job.


One thing that has always been a concern of mine, is the p.v.c. people use for the main body of these contraptions.
I always felt that this was not the best material for this application.
With this In mind, I went to the internet looking for equipment manafactured to perform this task
I did find one for extracting essetial oils for the holistic healing world.
It had a price tag of $1200! ouch.

The next step was to make a prototype and so I did!
After showing it around a little in the colorado medicinal comunity, I started building them! the parts are fairly expensive to have made up. Cost $380.00 per piece out the door about what a good bubble bag kit costs.

With this device I run all my sugar leaves, fine trim, node scrapings, and underdeveloped undertrash,
I can recover about 7 grams of oil from about 3/4 ounce of garbage. The oil is golden amber in color and drips off a dip stick like honey. So do yourself a favor and treat yourself every crop. Feel free to check out photo album for more pics of extractor and melungeon magic.


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pharmacoping said:

at that point you'll have what i do, less the expense !.
c02--in my experience it will not extract the way you want it to until you spend money to contain super pressures and temperature automation. the smallest machines I've seen cost a little over 10grand, so I figure 5g to build it, and blow up a few times to get it right. it yields less than butane, which is also food grade fda approved for pharmaceutical extractions of plant oils and compounds.

I've messed with c02 canisters, even the huge ones, and couldnt make this work. I hope you have better luck than me.

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cephalopod said:

That's why a pro system costs so much, no one likes shrapnel. I would be content with a reclaim system for now...

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cannabineer said:

Working fluid? Temps? Pressures? How manage the super/subcritical transition? I see no hardware for that ... cn

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pharmacoping said:

my extraction takes a minute, but the recovery of 100% of the butane takes two hours. it doesnt need to be baby sat at all. and when done the butane back in the sealed vessel waiting another run, saving $$ each times. not sure how much in a vector, but I use/reuse 400grams of liquid butane per run. I extract with 200grams, wait a bit, run the other 200g. couple cans' savings anyway, every time. I had large tane tank for over a year, just got it filled. if in a hurry, this can be evaporated old style outside also,conveniently with an included mile long little hose that seculey attaches.......and out a window. using up the tane though.

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