momofthegoons
vapor accessory addict
@Botanical.Extracts Doctor Vapor was last logged in here on August 11, 2014, so I don't know that he will be able to help you. Perhaps someone else can chime in?
Florasol (R134a) extractions.
- Thread starter Doctor Vapor
- Start date
Puffers
Micro-Climate Mastermind
@Botanical.Extracts
These parts are all pretty much HVAC related, except the molecular sieve looks different then those I normally use for pneumatic air drying and moisture removal in HVAC systems and I expect is probably procured from a lab supplier.
The expansion valve is what is also called a TXV they are normally sized for a given application, capacity, load, etc. In this application say you have a compressor moving 6k btu per hr. You might be looking for a 1/2ton (12k btu per ton), 134a rated, low temp TXV. This is just as an example it will depend on your equipment and what temp you are trying maintain in the gaseous state after the valve. These can be found at some HVAC distributors who deal with commercial and refrigeration some distributors will even build a txv to your spec's. Good luck.
This was an interesting thread I hope Doc Vapor gives us an update on their project this year.
These parts are all pretty much HVAC related, except the molecular sieve looks different then those I normally use for pneumatic air drying and moisture removal in HVAC systems and I expect is probably procured from a lab supplier.
The expansion valve is what is also called a TXV they are normally sized for a given application, capacity, load, etc. In this application say you have a compressor moving 6k btu per hr. You might be looking for a 1/2ton (12k btu per ton), 134a rated, low temp TXV. This is just as an example it will depend on your equipment and what temp you are trying maintain in the gaseous state after the valve. These can be found at some HVAC distributors who deal with commercial and refrigeration some distributors will even build a txv to your spec's. Good luck.
This was an interesting thread I hope Doc Vapor gives us an update on their project this year.
kingtut106
Well-Known Member
Was the end product ever tested in a lab? I'm curious to see the terpene profile and other percentages
Botanical.Extracts
FC 134A "ZERO COMBUSTION"
From Patent: WO 2005073154 A1
THE SOLVENT R134A:
1. "The solvent power of the fluid is directly related to the density at fixed temperature, and temperature at fixed density.
2. In the near-critical region, the density of the fluid is high and the fluid can act as a solvent.
3. When the pressure is lowered and/or the temperature increased, the density and, therefore, the solvent power of the fluid is reduced, and the material dissolved in the fluid can be separated from it."
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"Extract from suitable plant material, which process comprises the steps of: (a) contacting the plant material with a near-critical fluid to produce a near-critical fluid phase in which the totarol is dissolved; (b) separating the near-critical fluid phase from the plant material; and (c) separating the totarol-containing extract from the near-critical fluid.
The term "contact" as used herein generally means admixing the plant material with the near-critical fluid in a suitable extraction vessel using apparatus as are well known in the art.
Advantageously, the apparatus may be equipped with multiple extraction vessels, each of which may be removed from the flow of near-critical fluid without removing the others, thereby permitting emptying and refilling of the extraction vessels without depressurising the apparatus, enabling semi-continuous operation. The term "separate" as used herein in relation to the near-critical fluid phase and the plant material generally means removing the stream comprising the near-critical fluid phase and the dissolved totarol from the apparatus, while excluding the plant material from the stream.
The term "near-critical fluid" as used herein means a fluid that is close to its critical point and thus includes both subcritical and supercritical fluids. Near-critical includes the reduced temperature range 0.75 < Tr < 1.25 (where Tr is the temperature divided by the critical temperature, Tc of the fluid); and the pressure ranges P > Pv (where Pv is the vapour pressure) for T < Tc and P > Pc (where Pc is the critical pressure) for T > Tc.
Near-critical fluids are selective solvents that have found application in various extraction processes. A near-critical fluid has a density comparable to that of a liquid while exhibiting the diffusion properties of a gas. In the near-critical region, the density of the fluid is highly dependent on temperature and pressure. 1. The solvent power of the fluid is directly related to the density at fixed temperature, and temperature at fixed density. 2. In the near-critical region, the density of the fluid is high and the fluid can act as a solvent. 3. When the pressure is lowered and/or the temperature increased, the density and, therefore, the solvent power of the fluid is reduced, and the material dissolved in the fluid can be separated from it.
Preferred near-critical fluids include, but are not limited to: CO2; C2-C4 hydrocarbons, including ethane, ethylene, propane, propylene, and butane; partially and fully fluorinated Ci-C3 hydrocarbons, particularly R134a (1,1,1,2-tetrafluoroethane); iodotrifluoromethane; nitrous oxide; sulfur hexafluoride; dimethylether; and mixtures of any two or more of the above.
CO2 is widely used as a supercritical fluid as its critical temperature and pressure (31.2°C, 73.2 bar) are attained relatively easily. Furthermore, CO is inert, non-toxic, cheap and readily available."
THE SOLVENT R134A:
1. "The solvent power of the fluid is directly related to the density at fixed temperature, and temperature at fixed density.
2. In the near-critical region, the density of the fluid is high and the fluid can act as a solvent.
3. When the pressure is lowered and/or the temperature increased, the density and, therefore, the solvent power of the fluid is reduced, and the material dissolved in the fluid can be separated from it."
---------------
"Extract from suitable plant material, which process comprises the steps of: (a) contacting the plant material with a near-critical fluid to produce a near-critical fluid phase in which the totarol is dissolved; (b) separating the near-critical fluid phase from the plant material; and (c) separating the totarol-containing extract from the near-critical fluid.
The term "contact" as used herein generally means admixing the plant material with the near-critical fluid in a suitable extraction vessel using apparatus as are well known in the art.
Advantageously, the apparatus may be equipped with multiple extraction vessels, each of which may be removed from the flow of near-critical fluid without removing the others, thereby permitting emptying and refilling of the extraction vessels without depressurising the apparatus, enabling semi-continuous operation. The term "separate" as used herein in relation to the near-critical fluid phase and the plant material generally means removing the stream comprising the near-critical fluid phase and the dissolved totarol from the apparatus, while excluding the plant material from the stream.
The term "near-critical fluid" as used herein means a fluid that is close to its critical point and thus includes both subcritical and supercritical fluids. Near-critical includes the reduced temperature range 0.75 < Tr < 1.25 (where Tr is the temperature divided by the critical temperature, Tc of the fluid); and the pressure ranges P > Pv (where Pv is the vapour pressure) for T < Tc and P > Pc (where Pc is the critical pressure) for T > Tc.
Near-critical fluids are selective solvents that have found application in various extraction processes. A near-critical fluid has a density comparable to that of a liquid while exhibiting the diffusion properties of a gas. In the near-critical region, the density of the fluid is highly dependent on temperature and pressure. 1. The solvent power of the fluid is directly related to the density at fixed temperature, and temperature at fixed density. 2. In the near-critical region, the density of the fluid is high and the fluid can act as a solvent. 3. When the pressure is lowered and/or the temperature increased, the density and, therefore, the solvent power of the fluid is reduced, and the material dissolved in the fluid can be separated from it.
Preferred near-critical fluids include, but are not limited to: CO2; C2-C4 hydrocarbons, including ethane, ethylene, propane, propylene, and butane; partially and fully fluorinated Ci-C3 hydrocarbons, particularly R134a (1,1,1,2-tetrafluoroethane); iodotrifluoromethane; nitrous oxide; sulfur hexafluoride; dimethylether; and mixtures of any two or more of the above.
CO2 is widely used as a supercritical fluid as its critical temperature and pressure (31.2°C, 73.2 bar) are attained relatively easily. Furthermore, CO is inert, non-toxic, cheap and readily available."
4ninjasoho
New Member
Is anyone that participated in this post still present?