Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Material of construction for 300m3 HCl Tank?
Q. I'd like to build a HCl tank 33% volume 200-300 m3. What is the suitable material for this tank? There are several options: Steel tank with rubber lining, steel tank with FRP lining or FRP tank. Please advise.
Thank you
product engineer - Jakarta, Indonesia
June 27, 2008
A. Hi, Hartono. In my own experience I would not take option two as this would comprise a rigid liner inside a rigid steel tank with the two materials having different coefficients of thermal expansion.
Option three offers complete freedom from corrosion, whereas with option one the outside of the tank would rust and corrode and require maintenance. On the other hand, if there is any chance of mechanical damage, for example fork lift forks running into the tank, option one sounds safer. We in the metal finishing industry are accustomed to working with tanks smaller than the 44,000 to 66,000 gallons you are dealing with, so I can't offer knowledgable advice about secondary containment requirements, and there may be issues in your application that I am unfamiliar with. Good luck with it and let us know what you end up doing.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
June 27, 2008
A. Hi Hartono,
I am biased towards using PVC ... the dual laminate approach where one bonds FRP to the PVC.
FRP by itself can be permeated, not so with PVC.
40 odd years in the plastic's fabrication spectrum.
Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).
July 1, 2008
Short term storage of HCl in Steel Tank
Q. Kindly let us know if HCL Chemical is stored in Steel tank (for Short Duration without usage) can it increase the iron content in the HCl chemical? If so, how to subsidize the iron Content? How to Set the Tank with same Chemical.
Guru D- Bangalore, Karanatak, India
May 18, 2017
A. Hi Guru. HCl must not be put into a steel tank at all. Recognize that the reason the iron content increases, is because the tanks walls are being consumed by the acid. If you are confident that the tank is still structurally sound, put a removable plastic lining (bag liner) in the tank first.
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
May 2017
Q, A, or Comment on THIS thread -or- Start a NEW Thread