Liquid CO2? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Liquid CO2?

Reply
 
Thread Tools
Old 10-21-2012, 06:08 PM   #1
Thanat0s
Recipes 
 
Oct 2012
Posts: 30



So I was reading this thread earlier:
http://www.homebrewtalk.com/f35/co2-...re-psi-265611/

And I was wondering, how does one get the liquid CO2 in the first place? I'm buying a tank but have no idea how to get liquid co2.

Any help would be appreciated.

 
Reply With Quote
Old 10-21-2012, 06:37 PM   #2
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,201
Liked 1659 Times on 1072 Posts


All CO2 tank fills are in fact liquid, just like propane. I know it's confusing because you open the valve and you get gas. That's because it boils as soon as you lower the head space pressure. Science is awesome.
__________________
Welcome to BrewHardware.com. I love you.
BIAB Large Mesh False Bottoms and SS HERMS COILS are IN!!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

 
Reply With Quote
Old 10-21-2012, 06:39 PM   #3
porcupine73
Recipes 
 
Aug 2012
Fort Meade
Posts: 813
Liked 47 Times on 43 Posts


Having liquid CO2 is probably not going to be practicable for home use. Basically to have it be a liquid you need a low enough temperature and a high enough pressure, something very roughly iirc like -150C and 200psig. So that means insulated tanks for one. Then if you drop the pressure too low, it turns solid (dry ice), so you wouldn't be able to 'pour' it for example.

 
Reply With Quote
Old 10-21-2012, 06:40 PM   #4
zachattack
Recipes 
 
Mar 2012
, MA
Posts: 2,768
Liked 299 Times on 252 Posts


Are you wondering where to get it filled locally? Common places most of us use: gas distributors (Airgas, Matheson), welding shops, fire extinguisher shops, homebrew shops, beverage supply shops.

sharp6 Likes This 
Reply With Quote
Old 10-21-2012, 06:42 PM   #5
zachattack
Recipes 
 
Mar 2012
, MA
Posts: 2,768
Liked 299 Times on 252 Posts


Quote:
Originally Posted by porcupine73 View Post
Having liquid CO2 is probably not going to be practicable for home use. Basically to have it be a liquid you need a low enough temperature and a high enough pressure, something very roughly iirc like -150C and 200psig. So that means insulated tanks for one. Then if you drop the pressure too low, it turns solid (dry ice), so you wouldn't be able to 'pour' it for example.
Um, no. If it's in an inspected CO2 tank (the only legal way to get it in the US) it'll boil off to maintain a high enough pressure to remain in the liquid form. No insulation required. As Bobby pointed out, same deal as propane. If you want actual liquid CO2 to come out, you can get a tank with a dip tube. But please don't mess around with that unless you have the proper training.

 
Reply With Quote
Old 10-21-2012, 06:42 PM   #6
porcupine73
Recipes 
 
Aug 2012
Fort Meade
Posts: 813
Liked 47 Times on 43 Posts


Oh ok I didn't know you could have it be liquid at room temps, but yes I see it says above maybe 840psig at room temp it will be liquid too.

 
Reply With Quote
Old 10-21-2012, 06:52 PM   #7
Thanat0s
Recipes 
 
Oct 2012
Posts: 30


Quote:
Originally Posted by zachattack View Post
If you want actual liquid CO2 to come out, you can get a tank with a dip tube. But please don't mess around with that unless you have the proper training.

That's... what I need.

 
Reply With Quote
Old 10-21-2012, 06:58 PM   #8
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,201
Liked 1659 Times on 1072 Posts


What do you need liquid CO2 to come out of the tank for?
__________________
Welcome to BrewHardware.com. I love you.
BIAB Large Mesh False Bottoms and SS HERMS COILS are IN!!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

 
Reply With Quote
Old 10-21-2012, 07:09 PM   #9
Thanat0s
Recipes 
 
Oct 2012
Posts: 30


Quote:
Originally Posted by Bobby_M View Post
What do you need liquid CO2 to come out of the tank for?
It's actually not for homebrewing beer -- I just saw this forum and you folks seemed to be quite knowledgeable.

It's another food-related project I'm doing with a friend. Keeping the idea secret for now.

I just needed to know how to dispense liquid CO2 into a system.

 
Reply With Quote
Old 10-21-2012, 07:11 PM   #10
buttcord
Recipes 
 
Sep 2012
Sioux Falls, South Dakota
Posts: 62
Liked 5 Times on 4 Posts


good luck with your secret project.

 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
DME vs Liquid musicis Beginners Beer Brewing Forum 6 07-07-2012 01:55 AM
us-05 instead of liquid NordeastBrewer77 Fermentation & Yeast 11 12-15-2011 12:03 AM
Liquid Starter for Liquid Yeast the_merlin Beginners Beer Brewing Forum 4 10-01-2010 09:14 PM
Liquid to Liquid Corny jumper need help! akthor Bottling/Kegging 27 09-28-2010 01:59 PM
Liquid or Dry? Bulls Beers Beginners Beer Brewing Forum 2 09-17-2007 09:01 PM


Forum Jump