×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Aqueous CO2 Storage

Aqueous CO2 Storage

Aqueous CO2 Storage

(OP)
May someone direct me to a source of standards / regulations of Aqueous CO2 storage?
What is the proportion between stored CO2 mass and required vessel's volume?

Many thanks in advance!

RE: Aqueous CO2 Storage

Shmulik:

I always design and try to maintain a maximum Liquid CO2 to vapor space in the tank of 85%.  This "fill" ratio has proven its worth over the many years I spent with the CO2 industry.  It allows for enough variation in saturated conditions and gives sufficent cushion for the vapor space.

I've used this standard even while producing high-pressure liquid CO2 and expanding it directly into the storage tank for its subsequent storage at 200 - 250 psig.  The expanded vapors were separated within the vapor space and returned to process recycle.  I also use this fill ratio on transport tanks as well.  I've taken the ratio as high as 90% on large and well-instrumented plant storage tanks - but I always install redundant level alarms just in case, to be safe from an over-fill or a liquid return through the vapor balance lines.

You cannot afford an unexpected pressure relief device to go off on a liquid CO2 storage tank.  If the valve sticks open with dry ice under the seat, the tank can relieve down to atmospheric pressure and the subsequent liquid/dry ice temperature within the tank resulting from the relief will damage the quality of the tank steel to the point that you will have to destroy it - a very, very expensive lesson to learn!

Art Montemayor
Spring, TX

RE: Aqueous CO2 Storage

Shmulik:

In the previous post, I assumed you meant to say "saturated" CO2 - not "aqueous" CO2 (or carbonated water),

Art Montemayor
Spring, TX

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources