Propane & Propane Accessories....
- Thread starter Permacultuure
- Start date
i've seen the propane as high as 60-70 psi when on wet ice. This means our spools should be rate to at least 150 psi, i think 
ANSI/ASME use a 3X safety factor. If the maximum process pressure is 70 psi, the vessel should be capable of 210 psi.
I've only used straight n-Propane in a Mk III, and use dry ice and alcohol for the recovery bath, so I didn't see more than about 30 psi.
http://www.engineeringtoolbox.com/propane-vapor-pressure-d_1020.html
With high pressure clamps, all Mk III components are rated to at least 300 psi at 70F and 200 psi at 250F.
The Mk IV and V are only rated to 150 psi at 70F and 100 psi at 250F. The pressure relief valves are set at 100 psi.
PS: As a side note, having hydrostatically tested the larger Mk's to failure, I can tell you that the lids bow excessively, which lifts the seal off its seat and creates leaks, it doesn't explode.
I've only used straight n-Propane in a Mk III, and use dry ice and alcohol for the recovery bath, so I didn't see more than about 30 psi.
http://www.engineeringtoolbox.com/propane-vapor-pressure-d_1020.html
With high pressure clamps, all Mk III components are rated to at least 300 psi at 70F and 200 psi at 250F.
The Mk IV and V are only rated to 150 psi at 70F and 100 psi at 250F. The pressure relief valves are set at 100 psi.
PS: As a side note, having hydrostatically tested the larger Mk's to failure, I can tell you that the lids bow excessively, which lifts the seal off its seat and creates leaks, it doesn't explode.
What temperature was your tank? Were you running an ETS? A 100# tank 60% full just on wet ice barely crept up to 70 psi for me.
Chonkski
Member
Not yet, but hopefully soon. Still concentrating on distillation first.
propane exractions
propane exractions
I've been running an ETS with 99% pure propane from General Air out of Dillon, CO for a little over 6 months now, and I find that the yields are lower, but the product is far lighter when pulling it out. I've been purging at temperatures in the 80's and have had some awesome results, but this comes after whipping the material at 125 degrees until it turns creamy. Toss it in the 80ish degree oven, and it muffins up and turns to a glorious crumble. My best crumble test result was 96.3% THCA from some Blue Dream trim. For some reason, though, even though when I first pull it out of the collection vat and of the oven it smells great, when it comes to dabbing it, it leaves room to be desired as far as terps is concerned. Maybe they're evaporating when I'm whipping at 125?
If this same whipped material is purged at 110ish or higher, I've found it makes the material a more earwaxy material, rather than a flakey crumble. A small bit of brightness seems to be compromised when making it the wax instead.
I've tried to make shatter with propane as well, and have had decent luck. Without whipping, I've purged the hash at around 100 degrees, and gotten some rather stable and bright shatter. The issue for me has been that the shatter I make with propane auto-budders HARD after about 2-3 weeks. Had some dispensaries call and complain of this, though the auto-budder is still rather tasty. Highest test result with propane shatter was a 97.9% THCA 303 Kush.
I've thought about taking my once-run material and steam distilling it for remaining terps, then adding it to the material while I'm whipping it. Would that work with material that's already been run? Sometimes the cannabis still smells good when I'm unloading the column, so I've gotta guess there's still some goodness in there.
Tried doing some live-resin with propane, had KILLER results. Some Island Sweet Skunk for Hashish House in Pueblo turned out to be a yellow-wet-sand look, and had the best terp profile of anything I've ever blasted with the ETS. I guess they're selling it 100/g out here in CO :/ Did a shorter soak, no whipping, and a purge at about 85 degrees. About to start playing with another several loads of live resin from them this morning, any advice?
The ETS is capable of holding pressures of up to 300psi, and I've seen it get as high as 160 when I'm using it. I heat my propane tank before I release it for a soak, I've tried soaks for anywhere from 5 to 30 minutes, and I still get awesome colors. I think the collection pot is an 8", pretty tall and tough to get into.
Dispensaries like the PHO because it's bright and smelly, making it easy to sell.
propane exractions
I've been running an ETS with 99% pure propane from General Air out of Dillon, CO for a little over 6 months now, and I find that the yields are lower, but the product is far lighter when pulling it out. I've been purging at temperatures in the 80's and have had some awesome results, but this comes after whipping the material at 125 degrees until it turns creamy. Toss it in the 80ish degree oven, and it muffins up and turns to a glorious crumble. My best crumble test result was 96.3% THCA from some Blue Dream trim. For some reason, though, even though when I first pull it out of the collection vat and of the oven it smells great, when it comes to dabbing it, it leaves room to be desired as far as terps is concerned. Maybe they're evaporating when I'm whipping at 125?
If this same whipped material is purged at 110ish or higher, I've found it makes the material a more earwaxy material, rather than a flakey crumble. A small bit of brightness seems to be compromised when making it the wax instead.
I've tried to make shatter with propane as well, and have had decent luck. Without whipping, I've purged the hash at around 100 degrees, and gotten some rather stable and bright shatter. The issue for me has been that the shatter I make with propane auto-budders HARD after about 2-3 weeks. Had some dispensaries call and complain of this, though the auto-budder is still rather tasty. Highest test result with propane shatter was a 97.9% THCA 303 Kush.
I've thought about taking my once-run material and steam distilling it for remaining terps, then adding it to the material while I'm whipping it. Would that work with material that's already been run? Sometimes the cannabis still smells good when I'm unloading the column, so I've gotta guess there's still some goodness in there.
Tried doing some live-resin with propane, had KILLER results. Some Island Sweet Skunk for Hashish House in Pueblo turned out to be a yellow-wet-sand look, and had the best terp profile of anything I've ever blasted with the ETS. I guess they're selling it 100/g out here in CO :/ Did a shorter soak, no whipping, and a purge at about 85 degrees. About to start playing with another several loads of live resin from them this morning, any advice?
The ETS is capable of holding pressures of up to 300psi, and I've seen it get as high as 160 when I'm using it. I heat my propane tank before I release it for a soak, I've tried soaks for anywhere from 5 to 30 minutes, and I still get awesome colors. I think the collection pot is an 8", pretty tall and tough to get into.
Dispensaries like the PHO because it's bright and smelly, making it easy to sell.
NorPene Solutions
Member
Can BBQ propane be distilled or not, I can not find any access to clean propane up here in Ontario, Canada? 
Can BBQ propane be distilled or not, I can not find any access to clean propane up here in Ontario, Canada?
NO!!!! Not safe to use as it has ethyl mercaptans added for smell.
NorPene Solutions
Member
What temps is your propane during injection. The way I'm reading it your using warm propane? You heat your tank and are not using a pre injection chiller?
Try this method for shatter, and see if never exposing it to vacuum deeper than -29.5" Hg solves the waxing up problem.
Thin film, 110-115F @ down to, but no lower than -29.5" Hg. Purge until the boiling slows to a crawl, only takes about forty-five minutes to an hour with a few grams. I raise and lower the muffin a couple of times at the beginning.
My opinion is taking the vacuum below the boiling points of the many of the oils components is disrupting the matrix.
Yeah, that's why we say wax sucks, smells good just sitting there, but dabbed it's just not there anymore...
Thanks for sharing about the propane results, I don't think I've seen any PHO at my local MMJ dispensaries. At the moment nobody in SoCal is denying what they're selling is BHO, so I don't know why they wouldn't brag about it being PHO if it was...
Btw, I came home from the Cannabis Cup with three shatters from Paper Planes, and now the third is also turning to wax...dudes get your definitions correct, you're confusing solidity with stability, here's a pic, they were all originally in parchment folds where they deteriorated, and now continue to deteriorate... I actually paid for this...why I really want to be able to continue on making my own oil for my own personal use.
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HashoftheTitans
Member
I partially agree with you brother, Sky. I like the theory that differing boiling points contributes to nucleation. However, I think that the temps should be decreased running pure propane, as also the rapid boiling of a solvent as it is reduced in ratio also contributes to waxing up. Since there is a near 70 degree F differential in the BPs of the solvents being used, perhaps a lower finishing point or a slower work-up to the final temp is necessary.
The fastest way that I've found to purge propane or butane, is for the surface tension of the puddle to be low enough for the gas molecules to readily escape from strike angles shallower than 90 degrees. With the strains we tested, that temperature fell somewhere around 110/115F.
Not to be confused with the oven temperature setting, as it was measured at the puddle surface itself.
The terpenes we are targeting are well below their boiling points, but sublimating off, faster under vacuum, so we want to limit how long we pump.
Heat also changes the nature of some terpenes, through processes like decarboxylation and oxidation, so another reason to minimize how much and for how long.
