Best of both worlds is jacketed with a coil, so if tou want to use the tank to push with tou can bu warming and the coil can chill it, also depends on your chiller size and bow much gas your recovering and how fast
Pros, chills vapor, hopefully into liquid, best used in a dry ice slurry to maximize heat transfer along the length of the tube. If using single pass coil, inlet in the side that winds down with gradual slope, outlet is the leg up from the bottom.
Cons, none. Every hydrocarbon extractor needs at least one heat exchanger between the collection vessel and solvent tank. Type and size determined by solvent blend, speed of recovery desired.
Yes, the solvent tank should still be chilled whether with an internal coil, extenal jacket, or other means, to lower its pressure and send cooler solvent over your material.
@SamuraiSam A little off topic, on a double wrap coil, would I want my inlet on the inner wrap, or outer wrap? I have thought about this a lot, but this is the first comment I have seen referencing anything regarding the appropriate inlet/outlet of a coil.
I use 50ft double wrap coils for injection and recovery.
The reason I do it this way on single pass is that solvent cools gradually as it travels downwards and coldest part of bucket is at the bottom then it exits straight up
On a double wrap coil it shouldn’t matter since it’s taking its sweet time to go up and down
But I put inlet on the outside coil in a big bucket and inside in a small bucket the coil barely fits in
Whichever side has more contact with the cold stuff.
Probably percentages of a percentage here but I’m good at overthinking simple things
Used a bottom outlet coil in a tube from BHOgart years ago. Worked great. Also have never had an issue with pressure from collection / pump keeping everything flowing
Ya I prefer them no added pressurw from having to go up and down, i also have a valve and then a T so i never empty mt coil and can re vac the system,always felt like i was loosing alot of gas in the big coils.