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bmadhu_srao
Commentator

Join Date: Nov 2007
Posts: 86

Recovery of oxygen from PSA nitrogen plant

03/07/2010 2:05 AM

Dear Sir,

we are having a PSA nitrogen plant with 110CFM capacity with a duty cycle of 80%. We are currently leavin the exhaust gases to atmosphere. we are planning to know, if these oxygen rich exhaust gases can be recovered.
Has any research been done on this, or any plant in your knowledge has made a economical recovery these recovered gases
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dvmdsc
Guru
United States - Member - New Member

Join Date: Mar 2010
Location: In the pool because it is too hot.
Posts: 3054
Good Answers: 141
#1

Re: Recovery of oxygen from PSA nitrogen plant

03/07/2010 11:24 PM

This is feasible when using MOLSIV - and reactive tanks /check U.O.P. It is necessary to know the rest of the components in the stream. A run through a gas chromatograph can provide this. Separation can with different SIV (molecular siv) reservoirs.

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roto king
Active Contributor

Join Date: Feb 2010
Posts: 16
#2

Re: Recovery of oxygen from PSA nitrogen plant

03/08/2010 12:47 AM

Yes in our plant we dump oxygen fre into air,But since we have a consumer for oxygen so we are selling it of by compressing .its a very good thought how to utlise the oxygen..
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rkgupta
Member

Join Date: Aug 2008
Posts: 8
#3

Re: Recovery of oxygen from PSA nitrogen plant

03/10/2010 11:18 PM

We tried to use it in boiler as oxygen enrich air, it given fantastic result and increased efficiency of boiler, but one should be very careful for boiler tube heating. It should be done very carefully.
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