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Mercaptans Removal From Natural Gas


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#1 Propacket

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Posted 08 January 2016 - 02:17 PM

Hi,
Can anybody suggest a proven technology for removal of Mercaptans along with H2S and CO2 from natural gas? I only know about Sulfinol solution which can do this. Another technology which i heard about but not sure is MDEA sweetening followed by a solid bed like Sulfatreat. Any suggestions??

Edited by Propacket, 08 January 2016 - 02:19 PM.


#2 Bobby Strain

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Posted 08 January 2016 - 08:05 PM

You should talk to Huntsman. They sell all the amines. And have lots of experience. Let us know what you find.

 

Bobby



#3 nrj1213

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Posted 18 January 2016 - 05:17 AM

You should talk to Huntsman. They sell all the amines. And have lots of experience. Let us know what you find.

 

Bobby



#4 RockDock

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Posted 20 January 2016 - 11:32 AM

Selexol and Rectisol would also work. Caustic would work, too.



#5 Propacket

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Posted 22 January 2016 - 03:56 PM

You should talk to Huntsman. They sell all the amines. And have lots of experience. Let us know what you find.

Bobby

Yes they sell sulfinol amine but its flow rate is coming out to be too much and resulting in an expensive plant. I was looking for other solutions.

Edited by Propacket, 22 January 2016 - 03:57 PM.


#6 Bobby Strain

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Posted 22 January 2016 - 04:31 PM

They also sell MDEA. Maybe activated. Push them a little. Maybe they make more money on Sulfinol. Also, INEOS now owns BASF process along with others. Talk with them, too.

 

Bobby



#7 Propacket

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Posted 24 January 2016 - 11:34 AM

They also sell MDEA. Maybe activated. Push them a little. Maybe they make more money on Sulfinol. Also, INEOS now owns BASF process along with others. Talk with them, too.

Bobby


Thanks bobby. We contacted Dow,Huntsman and INEOS. Everybody declined. Then we came to know about Sulfinol which is licensed by Shell and sold by vendors like Huntsman. As mentioned above the flow of sulfinol is too high to be workable (2000gpm) whereas initially we had calculated 800 gpm generic mdea for H2S and CO2 removal (at that we were not worried for Mercaptans).

#8 RockDock

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Posted 26 January 2016 - 09:56 AM

Any reason you would not use a physical solvent?



#9 Propacket

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Posted 30 January 2016 - 11:28 AM

Any reason you would not use a physical solvent?

Since we have not designed a Mercaptans removal plant earlier, we have to make sure that the selected technology is the best both technically and economically.
By the way we have also found a Mercaptans removal mol sieve application. We are still in discussion with the vendor.
Thanks

Edited by Propacket, 30 January 2016 - 11:29 AM.


#10 breizh

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Posted 31 January 2016 - 12:42 AM

http://www.engineeri...77705253590.pdf

 

Hi ,

 

A brochure from Air liquide .

 

It may help you .

 

Breizh



#11 manojkaila

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Posted 06 February 2016 - 05:33 AM

Dear,

 

You can check with http://www.merichem.com/they are in business of Mercaptans removal with use of caustic regeneration system. May be some useful for you.

 

Regards,



#12 RockDock

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Posted 08 February 2016 - 10:18 AM

A mol sieve will be very expensive. The Sulfinol process is a chemical and physical solvent hybrid. I'd say, just stick with the physical solvent. Selexol would be much less expensive and remove the mercaptans. There are many, many more Selexol units in the world than Sulfinol.



#13 Propacket

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Posted 15 February 2016 - 08:57 AM

A mol sieve will be very expensive. The Sulfinol process is a chemical and physical solvent hybrid. I'd say, just stick with the physical solvent. Selexol would be much less expensive and remove the mercaptans. There are many, many more Selexol units in the world than Sulfinol.

 

Thanks RockDock. Reason for not using Selexol is neither technical nor commercial. Its something else.  






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