Electrochemical process for the preparation of nitrogen fertilizers
Patent
·
OSTI ID:1083035
The present invention provides methods and apparatus for the preparation of nitrogen fertilizers including ammonium nitrate, urea, urea-ammonium nitrate, and/or ammonia utilizing a source of carbon, a source of nitrogen, and/or a source of hydrogen. Implementing an electrolyte serving as ionic charge carrier, (1) ammonium nitrate is 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 are produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source; (3) ammonia is produced via the reduction of nitrogen source at the cathode and the oxidation of a hydrogen source at the anode; and (4) urea-ammonium nitrate is produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source, and anodic oxidation of a nitrogen source. The electrolyte can be solid.
- Research Organization:
- Energy & Environmental Research Center Foundation, Grand Forks, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC36-03GO13055
- Assignee:
- Energy & Environmental Research Center Foundation (Grand Forks, CA)
- Patent Number(s):
- 8,398,842
- Application Number:
- 13/420,979
- OSTI ID:
- 1083035
- Country of Publication:
- United States
- Language:
- English
Electrochemical Synthesis of Urea at Gas-Diffusion Electrodes
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journal | January 1998 |
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