4 replies to this topic

[aanita]

Can RSH be removed from liquid hydrocarbon condensate by increasing temperature in a stabilizer column.
If not how to remove or control RSH in a liquid hydrocarbon condensate which is coming from upstream wells fluid.

Regards.

[paulhorth]

Aanita,

Can RSH be removed from liquid hydrocarbon condensate by increasing temperature in a stabilizer column.

No.
To remove mercaptans you need to use a proprietary process. The most common of these is sold under the name MEROX by UOP, I believe. There are competing processes offered by others. Merox stands for Mercaptan Oxidation. The process involves washing the oil with aqueous caustic soda which is regenerated by contacting with air. The mercaptans are oxidised to Disulphides which are separated from the aqueous fluid as a waste stream, and can be reinjected into the oil (the disulphides are non-odorous).

Paul

[Nurudeen Musah]

Aanita,

Can RSH be removed from liquid hydrocarbon condensate by increasing temperature in a stabilizer column.

No.
To remove mercaptans you need to use a proprietary process. The most common of these is sold under the name MEROX by UOP, I believe. There are competing processes offered by others. Merox stands for Mercaptan Oxidation. The process involves washing the oil with aqueous caustic soda which is regenerated by contacting with air. The mercaptans are oxidised to Disulphides which are separated from the aqueous fluid as a waste stream, and can be reinjected into the oil (the disulphides are non-odorous).

Paul

how is the washing with caustic solution down
can it be down in the lab
those it need special apparatus
how is the spent caustic separated from the oil after it has been washed
is it by allowing them to settle

[S.AHMAD]

Details available here
http://en.wikipedia.org/wiki/Merox
Also see attached file

Attached Files

•  UOP-Merox-Process-Low-Sulfur-Transport-Fuels-Tech-Paper.pdf   325.1KB   87 downloads

Edited by S.AHMAD, 12 March 2012 - 07:28 PM.

[Nurudeen Musah]

Details available here
http://en.wikipedia.org/wiki/Merox
Also see attached file

please i visited the site you recommended but the process seem to be complex for me to understand and i don't have a pdf software to download the pdf file you recommended
am pleading if you could send me an e-mail of the pdf file to my e-mail address musahnurudeen@yahoo.com i will be very much greatful
initially i was thinking the caustic washing may be like preparing the caustic solution in a plastic drum and pouring the condensate to the solution and stirring
after that allowing the solution to settle and latter draining the spent caustic solution containing the contaminants and pouring out clear oil floating on top
is this the case if you are to do this in the local way?