My ninja, now we are talking...
The only problem I have been running into is how to restrict and maintain the pressure at the screen exit end of the cyclinder. You have to restrict the flow to maintain the pressure but then you sacrafice the flow velocity to get the material to leave the cylinder.. I looked at doin it just like BHO but the pressure still is an issue..
Still workin on it,,,thanks for the info.
Tex
so since propane leaves such a bad smell, is it safe to say we should just find another solvent?man propane extractions I done been simple, first get a pot of stainless steel and a propane tank 5lbs, crack the valve and turn upside down and empty the contents into the pot. after its been releasing for a minute or two, i check to see the depth of propane in pot. i have my vessel ready w the pot ground down waiting for the liquid transfer, then I would pour it in the vessel and lock it up to get the pressure built up to be supercritical @ 42 bar, and allow a resident time to pass then i would release the excited gas oil mixture to another vessel below. makes really good, foul tasting oil that needs treatment and not a simple evaporation of solvents. that foul taste though can not be eliminated, only reduced. when used as a co-solvent has been shown to produce red oil very rich.
Propane without ethyl mercaptan added works well, though it will absorb more water than the longer chain simple alkanes.so since propane leaves such a bad smell, is it safe to say we should just find another solvent?
my brother n I are that age and i remmeber years back in the 70's he took some cannibinol and puked or coughed so hard he tore mucsle tissue in his chest? cannibinol is an essential oil then? i never knewCannabinol anyone 50 or so years old remember that? I got people helping me on this but it ain't easy.
I'm thinking a molecular sieve is the way to go.
If you do some searching for "sweetening propane" which is what this process is called--you should find some interesting ideas.
A molecular sieve seems the best option to me. You can get one that will only let tiny molecules pass through. Propane is a very tiny molecule compared with mercaptans, so finding the right size MS shouldn't be too difficult.
There is also this as an option:
methyl propane is a more suitable solvent. it is also refered as iso-butane C3H10. We should look into the shorter chain carbon atoms for solvents of choice as they are overlooked for whatever reasons, but they fuckin whoop ass. just needs more attention to minimizing EtSH. i never noticed iso-butane being as foul as propane, so idk if they are the same kinds used.
according to wiki, isobutane is a 3 carbon chain. here in california, there isnt an option to buy unodorized propane. does not exist here.
its called subcritical water, or superheated steam. an applied over pressure of the vessel upwards of 500psi, then heated to 705F, where the water behaves very non-polar at these temps and pressures. in the tens of bars rather than hundreds of bars. you may survive a accident, but will be badly burned. almost wish you were dead though.
Propane used for heating purposes in the US will have Ethyl Mercaps added for leak detection. Tough to get out and has a sensory threshold of 2 ppb.
Pure propane without mercaps is available through airgas suppliers.
Propane is a simple alkane containing only three carbons and has more water solubility than butane with four carbons. It will pick up more chlorophyll and plant alkaloids than butane will.
If butane is not available, pentane with 5 carbons is the first alkane that is completely insoluble in water and would be a better choice.
We use a lot of hexane, which has six carbons, in our processing, but extract most of our oil with butane, which we recycle.
We buy our n-Pentane from American Scientific locally. It has around a 100F boiling point, so is not as easy to purge as n-Butane with a 31.2F boiling point, but does a good job.Is pentane also available at airgas suppliers? Do you need any special license to obtain it? Is is generally the same process as using butane as our solvent?
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