Ammonia → Bicarbonate Ion

HRID 1912224Notes

Reaction equation

HRID 1912224 reaction equation
[NH3:1].[NH4+].[C:3](=[O:6])([OH:5])[O-:4].[C:7](=[O:10])([O-])[O-:8].C(=O)=O>O>[C:3](=[O:4])([OH:6])[O-:5].[C:7](=[O:10])([O-:8])[NH2:1].[NH4+:1]

Participants

8

Reactant 5

HCID 222Ammonia3×HCID 223AmmoniumHCID 280Carbon Dioxide2×HCID 769Bicarbonate IonHCID 19660Carbonate Ion

Product 2

HCID 769Bicarbonate IonHCID 517232Ammonium Carbamate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

For the ammonia process, the solvent solution consists of ammonium, bicarbonate ions and to a lesser extent, carbonate, in equilibrium with dissolved ammonia (aqueous), and dissolved CO2 (aqueous). In the absorber, water and ammonia react with CO2 (aqueous) to form bicarbonate ions or ammonium carbamate ions, with the reaction reversed in the stripper by the application of energy. The relevant aqueous phase reactions can be summarized by the following overall equations: CO2+H2O+NH3HCO3−+NH4+  (eqn. 1) CO2+2NH3NH2COO−+NH4+  (eqn. 2) HCO3−+NH3CO32−+NH4+  (eqn. 3) CO32−+H2O+CO22HCO3−  (eqn. 4)

Sources & evidence

ORD record
ord-e11328f5398e42e4a5a1a40123cb623e
Source dataset
uspto-grants-2013_12
Patent number
US08609049B2

Reaction notes

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