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Electrochemical process for the preparation of nitrogen fertilizers

Patent ·
OSTI ID:1178014
; ;
Methods and apparatus for the preparation of nitrogen fertilizers including ammonium nitrate, urea, urea-ammonium nitrate, and/or ammonia are disclosed. Embodiments include (1) ammonium nitrate produced via the reduction of a nitrogen source at the cathode and the oxidation of a nitrogen source at the anode; (2) urea or its isomers produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source: (3) ammonia produced via the reduction of nitrogen source at the cathode and the oxidation of a hydrogen source or a hydrogen equivalent such as carbon monoxide or a mixture of carbon monoxide and hydrogen at the anode; and (4) urea-ammonium nitrate produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source, and anodic oxidation of a nitrogen source.
Research Organization:
Energy & Environmental Research Center Foundation, Grand Forks, ND (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-03GO13055
Assignee:
Energy & Environmental Research Center Foundation (Grand Forks, ND)
Patent Number(s):
9,005,422
Application Number:
12/905,600
OSTI ID:
1178014
Country of Publication:
United States
Language:
English

References (3)

Electrochemical Synthesis of Urea at Gas-Diffusion Electrodes journal January 1998
Hydrogen production from coal, water and electrons journal May 1979
Electrochemical membrane reactor for the reduction of carbondioxide to formate journal November 2006

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES