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BC Genetics
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Good post, thanks.I would love to respond to this ad I am a technician for one of these research facilities doing supercritical extraction. I am just now doing the metrics at the transcritical phase(1100psi@89.5f - 2000psi@110f). Using my innate knowledge of BHO extractors, from the last 10 years building and operating them. I find that using the lower temperature/pressure runs yields a product of higher purity. Meaning the product extracted had less lipids/chlorophylls etc. On the con side of this equation, the CO2 acts less like a chemical/physical solvent (hcfc Butane, hexane, etc.) and more like an inert gas (physical solvent@scf). Thus the time required to extract what you need is higher. Our run time for these metrics were 16 hours at 7.8241% yields with a 93.4412% purity and a 6% terpine content. Pictures coming.
For reference separator pressure/temp:
S1-1100psi@85f. S2-850psi@75
However with these metrics I was never able to extract MidRun. the extracts would freeze up and I would have to heat up the separators to recover the oils.
I noticed that running higher pressures and higher temperatures/pressures extract everything faster and more as a liquid. Think of hot water dissolving and washing away oils. the hotter and the higher pressure dissolve or strip better than low. The fall back to this approach. Is that the time becomes the most important sensitive parameter. @15-20 minutes you may pull terps/oils-no waxes. And at 22m you start pulling chlorophylls and ruining you quasy vape-ready oil. The issue here is the sweet spot between the two. I will update you with ours. Thanks
What would you set separator temp at if your running at 250psi in separator?That patent is misdirection.
2000psi on extraction vessel, 120f. Thank me later.
I have an Infinity extractor and wonder how long you keep the pressure on at 120 and i assume the 120 is the extraction chamber, what temperature for the collection chamber/That patent is misdirection.
2000psi on extraction vessel, 120f. Thank me later.
Flashthunder, I appreciate you joining the conversation, but be careful making bold statements with no shown proof. In this patent, the applicant found that running CO2 extract at sub critical, over super critical levels obtained a cleaner initial extract and using sub critical levels, the user can selectively obtain cannabinoids and terpenes without solubilizing plant waxes before post processing occurred to purify the CO2 extract even further.
Using scientific method... on my 5L 2000psi unit, I had a starting point given to me by Eden Labs: 120F, 1600psi. So, I ran sub lots holding the temp at 120F, varying the psi from 1000psi to 1900psi in 100psi increments. I took each sample to a certified I502 test lab in WA, and had the cannabinoid profiles done and the precipitated wax total in each extract. The results explained that as the psi value went up more plant waxes were solubilized in the end. I wasn't finished in the study and selected 1000psi for my pressure and varied the temp from 70F to 140F in 10F increments. I then again had the test lab measure the terpene and cannabinoid profiles. It was found that more terpenes were saved at the lower temps. So my experiment shows me that if I want quality I will choose sub critical setpoints and if I want quantity, I will choose super critical. My next experiment will be to vary setpoints under sub critical parameters to see if I can selectively pull only terpenes.
Please explain why you use 120F and 2000psi. I didn't want to push my unit to this setpoint, but my results showed as I increased my PSI setpoint I pulled out more waxes. Thanks.
~Rhyno
co2 dissolves thca and thc at similar temps and pressure but thc is easier to extract so if u start with 50/50 material ur extract prob wont be 50% thca/50%thc unless u extract it for a really long time where the might even back outRhyno,
Is it possible to extract, for purposes of example, a 50/50 mix of acid and activated THC oil using CO2 extraction? I am currently researching set points for extraction and cannot find anything credible concerning if it is possible and or achievable in one run or would you need to do several runs at different temperatures and pressures, then combine the results of each? Thank you.
Copy. Thank you for your help.i dont hav analytical numbers i just know that if i decarb i get ~ 20% more product for same time and amount of co2 used.
I can give you the parameters on THCa, but I am not sure how they would perform with an IES. What is the max pressure with that system? Do you have the newer model or the older ones?I'm an IES 2x5L. For THCa I run 900psi at 13C/27C
I've found my best overall yields on decarb'd material is 2320/33C also 1650/26C/42 works well. During the day i do a quick 5 hour run runs on high pressure 2850/42/47
I'm really looking for some input on THCa yeilding, i'm continually getting dry ice in my extraction cup, and i'm yielding about 150g off of 5lbs of material. Then i will decarb the material and run a THC run and i get the clearest most beautiful looking oil. I sent it in for testing on Wednesday I will let you all know the results that I find. But it's an extremely clear oil. I'd like to here from anyone on THCa parameters. Thanks
Hey, I'm having trouble finding any info on terpene solubility in CO2 in general. Could you direct me to somewhere I can find info on this bitI don't have peer reviewed papers to to support my claims. Only over then thousand of hours and hundreds of runs worth of anecdotal evidence.
120f and 1000 psi is a gas phase, so I wouldn't expect much there. While it's true that more waxes are extracted at higher temps/psi, its not because they are soluble. They are simply washed out because of the volatile environment. I think if you crunched the numbers you would find that the terpenes aren't simply being lost, they are being 'diluted' by the waxes. Sub-Critical runs do yield higher percentages of cannabinoids because the waxes are more viscous at lower temps and not extracted. Sub-critical will not pull all the di-terpenes though, so you are leaving psychoactives behind because of the high surface tension cohesion of liquid state co2.
I, as a business owner, always chose complete extraction over quality, because the market for high end concentrates just doesn't make it worth the loss in yield(yet). I doubt you'll have much luck selectively pulling terpenes with any standard system on the market(the polarities are too similar), although Greywolf recently did a write up on some work Eden is doing using break-through equipment, which is very promising. I would contact Fritz or Patrick at Eden, as they are the R&D team.
I'm glad to see you're doing actual research, the industry needs more people like you.
PS- Careful not too push your equipment beyond manufacturer specs, the psi ratings are only valid within certain temp ranges.
So is that what we can call a terp sauce?CO2 extracted - rich terpene oil...the color and smell of these terps are insane.
Strain - Cannatonic
THC/CBD: 1.9% / 2.7%
Terpene Concentration 58.97%
Can get about a 0.5 to 2.0% yield of this type of terpene rich oil per run.
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