[Gray Wolf]

Originally Posted by 1labs

Hello gray wolf
Im assuming you use flower instead of trim to get those figures correct.

Yup! Trim can be anywhere, but typically half or so.

[einsteinlady]

Gray Wolf love the design.

After you do bulk subzero extraction, do you/ can you put in a jacketed still (15gal or 55gal)
to reclaim the ethanol and obtain your crude oil?

Also for using a still; whats the largest diameter you would use for a head on a 15gal and also a 55 gal? My thinking is that a larger diameter head = faster distillation time.

[Gray Wolf]

Originally Posted by einsteinlady

Gray Wolf love the design.

After you do bulk subzero extraction, do you/ can you put in a jacketed still (15gal or 55gal)
to reclaim the ethanol and obtain your crude oil?

Also for using a still; whats the largest diameter you would use for a head on a 15gal and also a 55 gal? My thinking is that a larger diameter head = faster distillation time.

Yes, we currently use a simple still, a Extract Craft Turbo vacuum still, a ISO-3 or 4 Isomizer, or a Heidolph rotovape for recovery.

If you wish to keep the extract in carboxylic acid state, vacuum recovery works best.

All things being equal, the greater the surface area, the more surface boiling and with matching condenser, the fastest recovery.

Pressure also affects boiling point and boiling rate.

If you are operating it above one atmosphere (14.7 psi), it is a pressure vessel, so subject to ASME Section VIII.

[einsteinlady]

If using a 15 gallon keg;

-What kind of pipe could one use for the column that would still be vacuum rated. Thinking 6" diameter and 36" tall.

-When you say matching condenser, if one used 6'' then condensers I.D. would have to be 6'' too? ... for fastest recovery.

-Attaching vacuum to receiving keg would keep the still at negative pressure. If the vacuum pump failed then positive pressure would form and not be good. A pressure relief valve could be added to the boiling keg. Am I missing something where this would create positive pressure under vacuum????

-Would waterfarms -50degree recirculating cooler be able to keep up with condensing?
For condenser I am thinking a jacketed tube with cold water recirculating through it coupled with a coiled tube inside the condenser also recirculating cold water.

[Gray Wolf]

Originally Posted by einsteinlady

If using a 15 gallon keg;

-What kind of pipe could one use for the column that would still be vacuum rated. Thinking 6" diameter and 36" tall.

-When you say matching condenser, if one used 6'' then condensers I.D. would have to be 6'' too? ... for fastest recovery.

-Attaching vacuum to receiving keg would keep the still at negative pressure. If the vacuum pump failed then positive pressure would form and not be good. A pressure relief valve could be added to the boiling keg. Am I missing something where this would create positive pressure under vacuum????

-Would waterfarms -50degree recirculating cooler be able to keep up with condensing?
For condenser I am thinking a jacketed tube with cold water recirculating through it coupled with a coiled tube inside the condenser also recirculating cold water.

Schedule 5 304SS pipe would work, as would a sanitary coluumn.

6" is a big column!

By matching condenser, I meant one with the same BTU rejection capacity as you are putting in boiling.

What are the specifications on the chiller and how many gallons per minute do you plan to recover?

[lawya]

Which do you recommend Gray Wolf? Sub Zero ethanol or BHO?

[superglue]

apples? or oranges?
if you are making a pie?
if you are making juice?

fwiw

[WaterFarmFan]

Originally Posted by superglue

apples? or oranges?
if you are making a pie?
if you are making juice?

fwiw

How so? I am curious about the differences. If high quality flowers are used as the source material, what are the apples and oranges?

[WaterFarmFan]

Here are my thoughts, which certainly could be wrong as my butane practical experience is nill. Butane has a lower boiling point and better solvent polarity, which makes it easier to extract with, but it is highly explosive and dangerous on a smaller scale without a proper environment. This allows a lower temperature purge (helps keep terpenes) but also picks up more undesirable compounds like waxes, which require further refinement to purify. If that purification is winterization via ethanol, then all the terpenes with boiling points between butane and ethanol will lost during ethanol purge. So, if you are winterizing BHO, why not just extract with alcohol in the first place? I understand that processing low quality trim is much easier to do in bulk via a large closed loop butane system, but volume aside, are there any other benefits to using butane for the smaller craft producer?

[Gray Wolf]

Originally Posted by lawya

Which do you recommend Gray Wolf? Sub Zero ethanol or BHO?

It depends on how much of what are you processing and what do you want to end up with? Might you elaborate?