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

Dm Unit Regeneration


This topic has been archived.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

#1 Chem32

Chem32

    Veteran Member

  • Members
  • 30 posts

Posted 02 July 2014 - 05:59 AM

Dear sir,

 

When to stop acid and caustic addition to SAC and SBA during regeneration? What criteria we need pls explain?

 

Thanks.



#2 fallah

fallah

    Gold Member

  • ChE Plus Subscriber
  • 4,930 posts

Posted 02 July 2014 - 06:37 AM

Hi,

 

If I understood your query well, I think during regeneration acid and caustic addition should be stopped when the H+ and OH- would be appeared in the outlets respectively...



#3 breizh

breizh

    Gold Member

  • Admin
  • 6,292 posts

Posted 02 July 2014 - 06:41 AM

Hi ,

On top of what Fallah explained , I would consider to contact the supplier of resins who should tell you the quantity of Acid or alkali to introduce per m3 of resin , this based on the strength of the chemicals .

 

The resource attached should give you clues about the monitoring of the process .

 

Breizh.


Edited by breizh, 02 July 2014 - 07:10 PM.


#4 Chem32

Chem32

    Veteran Member

  • Members
  • 30 posts

Posted 03 July 2014 - 02:31 AM

Thank you Fallah and Breizh.



#5 Chem32

Chem32

    Veteran Member

  • Members
  • 30 posts

Posted 12 July 2014 - 03:00 AM

Dear Fallah and Breizh

 

I checked our resin supplier brochure, it says that the regenerant flow should be 3-18 m3/hm2.I couldn't understand this unit please explain

me. thank you.



#6 fallah

fallah

    Gold Member

  • ChE Plus Subscriber
  • 4,930 posts

Posted 12 July 2014 - 03:11 AM

sarathkumar,

 

In fact, it is volumetric flux (not to be confused with volumetric flow rate) i.e. the rate of volumetric flow across a unit area of the total cross sectional area of the bed:

cubic meters/(1 hour*1 square meter)


Edited by fallah, 12 July 2014 - 03:13 AM.





Similar Topics