Hi,
If I have a feed containing ammonia, carbon dioxide and water, what will be the best way to separate the ammonia for storage. The priority here is to obtain a high yield of ammonia.
The feed is a gas feed at 120 kPa and 120 C. (NH3 = 30%, CO2 = 40%, water = 30%)
My initial hunch is to cool the gas first, and add in a water feed to cause the ammonia to dissolve in the water leaving CO2, as the remaining gas product. What would be the best way to separate ammonia from water after this?
Thank you for any replies and do recommend any books or papers I should look at it.
Cheers,
yeek
Full Version: Separation Of Ammonia From Ammonia-co2-water System
QUOTE (yeek @ Oct 27 2008, 01:59 PM) 
Hi,
If I have a feed containing ammonia, carbon dioxide and water, what will be the best way to separate the ammonia for storage. The priority here is to obtain a high yield of ammonia.
The feed is a gas feed at 120 kPa and 120 C. (NH3 = 30%, CO2 = 40%, water = 30%)
My initial hunch is to cool the gas first, and add in a water feed to cause the ammonia to dissolve in the water leaving CO2, as the remaining gas product. What would be the best way to separate ammonia from water after this?
Thank you for any replies and do recommend any books or papers I should look at it.
Cheers,
yeek
If I have a feed containing ammonia, carbon dioxide and water, what will be the best way to separate the ammonia for storage. The priority here is to obtain a high yield of ammonia.
The feed is a gas feed at 120 kPa and 120 C. (NH3 = 30%, CO2 = 40%, water = 30%)
My initial hunch is to cool the gas first, and add in a water feed to cause the ammonia to dissolve in the water leaving CO2, as the remaining gas product. What would be the best way to separate ammonia from water after this?
Thank you for any replies and do recommend any books or papers I should look at it.
Cheers,
yeek
Dear Yeek,
Just one of the factors might really prove worthy;is to look for
some chemical and/or catalyst to enhace or control selective solubility characterstics of this stream for Ammonia in water Vs Carbon dioxide in water.
This is in addition to your mentioned lowering of temperaure.
Regards
Qalander
I've decided that the separation would be done by using absorber and distillation columns. So there won't be a use of an external catalyst or other chemicals to make the separation easier.
currently I already have a flow sheet of the process in hysys. However what is the easiest way to add a recycling stream without getting converging problems? There's a lot of water going to waste so if there's a easier way to add recycle streams, please help out! thanks!
currently I already have a flow sheet of the process in hysys. However what is the easiest way to add a recycling stream without getting converging problems? There's a lot of water going to waste so if there's a easier way to add recycle streams, please help out! thanks!
QUOTE (Qalander (Chem) @ Oct 27 2008, 07:39 AM)
QUOTE (yeek @ Oct 27 2008, 01:59 PM)
Hi,
If I have a feed containing ammonia, carbon dioxide and water, what will be the best way to separate the ammonia for storage. The priority here is to obtain a high yield of ammonia.
The feed is a gas feed at 120 kPa and 120 C. (NH3 = 30%, CO2 = 40%, water = 30%)
My initial hunch is to cool the gas first, and add in a water feed to cause the ammonia to dissolve in the water leaving CO2, as the remaining gas product. What would be the best way to separate ammonia from water after this?
Thank you for any replies and do recommend any books or papers I should look at it.
Cheers,
yeek
If I have a feed containing ammonia, carbon dioxide and water, what will be the best way to separate the ammonia for storage. The priority here is to obtain a high yield of ammonia.
The feed is a gas feed at 120 kPa and 120 C. (NH3 = 30%, CO2 = 40%, water = 30%)
My initial hunch is to cool the gas first, and add in a water feed to cause the ammonia to dissolve in the water leaving CO2, as the remaining gas product. What would be the best way to separate ammonia from water after this?
Thank you for any replies and do recommend any books or papers I should look at it.
Cheers,
yeek
Dear Yeek,
Just one of the factors might really prove worthy;is to look for
some chemical and/or catalyst to enhace or control selective solubility characterstics of this stream for Ammonia in water Vs Carbon dioxide in water.
This is in addition to your mentioned lowering of temperaure.
Regards
Qalander
Dear Yeek!
Could you please upload your Hysys file, and we will have a review together your problem ?
Best regards,
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