Thar Process: Large scale Super critical Fluid Chromatography to separate CBD


Anyone got any experience with these guys?

Seems like interesting tech, uses 10% ethanol as a co-solvent with the CO2 for HPLC.

Ethanol or CO2 extraction for Hemp?

Effectively the same machine as Waters SFE. I’ve heard rumors from techs at Waters about them doing this, it definitely will work. Everyone knows CO2 isn’t a fast enough extraction solvent, so they’re repurposing the machines for chromatography.

Edit: They’re going to use way more than just ethanol for this process.


Probably works well if you have the couple million to even see the machine lol


My understanding is that Waters uses Thar’s design/system/patent/whatever under license from Thar.

We seriously considered a Thar system before settling on ethanol, and if/when we finally get around to installing a CO2 system for terp extraction it will likely be a Thar (or possibly an Azoth). They appear to have some of the best systems from a pure engineering perspective, though we haven’t had time to see one in person yet.

Ballpark pricing I got from them a long time ago (USD):
Dual 70L chamber system (~100 kg/8 hours) = ~$800k
Dual 120L chamber system (~150-200 kg/8 hours) = ~$1.1M
Dual 360L chamber system (~550 kg/8 hours) = ~$2.35M


Interesting I assume those quotes are for the CO2 Extractor not the Super Critical Chromatograph? Did you get any information on the Chromatograph pricing?


Correct, and no I did not. They basically said “lots.”


Not quite the same as a waters SFE and not repurposing. They have 2 discrete product lines and are still very active in the CO2 extraction space.


Thar sold off a portion of their business to Waters several years ago…this included the tech behind the small Water’s SCO2 extractors.

I’ve spent a significant amount of time with Thar systems and they’re fantastic. Most manufacturers have popped up to service the cannabis industry in the past 5 years. Thar is OG and has been working with SCO2 since the 80s.

Shoot me an IM if you want to chat more!


I meant repurposing the design, not the actual machines, sorry. From what I discussed with one of their reps they hardly sell any of their “smaller” models and are instead using that size/framework for the chroma. They’re full on maximizing scale now, some of the stuff I looked at looks like it would fill a grocery warehouse.

Pretty crazy, but, I’m putting my bets on the EPA enforcing some type of regulation that stops cannabis/hemp extraction with hydrocarbons (maybe ethanol too) in place of CO2. I’m still doing research on the exact impact of different alkanes on the environment.

As far as the Waters bit, that’s why I said “effectively.” It’s a re-engineered piggyback from their design for smaller scale extractions.


Gotya! Yes their SCO2 extractors range from 2X20 to 2X1250L (yes…1250L)! I’m a big fan of Thar.