Chloride Removal Alternatives
Chloride Removal Alternatives
(OP)
We wish to feed a byproduct liquid hydrocarbon (paraffins and aromatics boiling in the decane-dodecane range) containing up to 20ppm organic (and possibly some inorganic) chlorides to a downstream process which can be poisoned by chlorides. Chloride spec is <1ppm per licensor in the downstream process, but we have always been non-detectible in the feed to that process in the past.
What sort of treatment alternatives are available for my stream? Flow is <5gpm.
Any help appreciated. Best wishes, sshep
What sort of treatment alternatives are available for my stream? Flow is <5gpm.
Any help appreciated. Best wishes, sshep





RE: Chloride Removal Alternatives
RE: Chloride Removal Alternatives
If you can give the source of this Cl as epoisses asked, I would help.
Cheers
RE: Chloride Removal Alternatives
The downstream process will include a light hydrotreating which may breakdown these chlorides, but introduces uncertainties related to the HCl produced. Any chlorides making it through that step will poison the downstream process, so we wish to remove chlorides upstream as much as possible.
As a fixed bed is probably the most economical treatment for such a small flow and chloride load, I will gladly take any further recommendations on vendors and/or bed material. If other alternatives are available then please bring them to my attention as well. In any case thanks and best wishes, sshep
p.s. you will note that I didn't want to rely on hydrotreating these chlorinated compounds, but if we did, are there any bad interactions between HCl and H2S, NH3 which could cause problems in that process, or would it be a straight HCl corrosion issue.
RE: Chloride Removal Alternatives
RE: Chloride Removal Alternatives
I would recomend against the alumina as it has enough acidity to actually cause some organic chloride formation in the right enviroment.
RE: Chloride Removal Alternatives
In my MS thesis, I used this adsorbent to removing phosphates ions from wastewater and it has been found that this adsorbent is highly recommended.
If I remember well, this adsorbent has good ion exchange with Cl ions after OH and PO4 ions.
Hope this would give help to you
Cheers