Jump to content



Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog

Hcl Vapour Through Saline Solution


This topic has been archived. This means that you cannot reply to this topic.
2 replies to this topic
Share this topic:
| More

#1 ry4nl4t

ry4nl4t

    Brand New Member

  • Members
  • 2 posts

Posted 27 June 2016 - 05:25 PM

I've got a problem I'm not sure how to approach, any help would be much appreciated.

A 7200L tank containing 16% HCl has an overflow which goes through a seal pot containing approximately 9L of Saline solution.

I've been asked to calculate the % of Saline required to strip the HCl vapour so none is released to atmosphere.

As there is no reaction I'm a bit stumpedulate the percentage of NaCl in water needed.

Can anyone advise?

Kind regards,

Ryan

#2 Napo

Napo

    Gold Member

  • Members
  • 350 posts

Posted 27 June 2016 - 08:27 PM

Ryan,

 

Normally you need to use lime milk (calcium hydroxide) or soda ash (calcium carbonate), but if you storage temperatura is low the HCl (16%) is low (minimal evaporation).

 

In extreme you can use sodium hydroxide.

 

I attached information.

 

Napo.

Attached Files



#3 MrShorty

MrShorty

    Gold Member

  • ChE Plus Subscriber
  • 517 posts

Posted 28 June 2016 - 10:54 AM

Can I assume that you have had some coursework and computational resources to deal with electrolyte thermodynamics? The basic approach to the scenario that I would expect would be to use your favorite thermodynamic model for electrolytes (Debye-Huckel is the one I am most familiar with, but there are others) to compute the impact of NaCl on the activity coefficient (and partial pressure) of HCl. Are you already familiar with (or have access to a computer program or colleague who is familiar with) these computational models and schemes?






Similar Topics