×
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

Hydrogen Chloride (gas) neutralization

Hydrogen Chloride (gas) neutralization

Hydrogen Chloride (gas) neutralization

(OP)
Hello,

What is the simplest way to neutralize a hydrocarbons gas stream with less than 1% HCl?
Can we pass the gas stream through a barrel with NaOH solid flakes?

regards,
roker

RE: Hydrogen Chloride (gas) neutralization

Bubble the gas up through a caustic solution.  Is this small scale or large scale, continuous or batch?

Good luck,
Latexman

RE: Hydrogen Chloride (gas) neutralization

(OP)
thank you Latexman,

small scale and batch.

regards,
         roker

RE: Hydrogen Chloride (gas) neutralization

If you want exhaust almost HCl-free gas (less than 10mg/Nm3), you may need more than just bubbling. I would consider a small packed tower, with a soda turnnaround.
If the gas contains CO2 , then you'll need to control the pH (not above 8.5), and not under 1.0.
1% is already an important concentration

RE: Hydrogen Chloride (gas) neutralization

NaoH Flakes( Assuming  99% concn)is too much of concentration to neutralise 1% HCL Gas. Best  way i sto  Dilute 33% cuastic to  Lesser  concenration (~ 5%) and use it.

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