Method and apparatus for anhydrous ammonia production
First Claim
1. A method for synthesizing anhydrous ammonia comprising the steps of:
- a. providing a proton conducting electrolyte having a first side and a second side, wherein at least a portion of the first side of the proton conducting electrolyte is provided in contact with a water vapor dissociating electrocatalyst and at least a portion of the second side of the proton conducting electrolyte is provided in contact with a nitrogen dissociating electrocatalyst,b. providing a voltage across the proton conducting electrolyte,c. exposing the first side of the proton conducting electrolyte to water vapor, andd. exposing the second side of the proton conducting electrolyte to nitrogen at a pressure of between about 10 atm and about 300 atm.
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Abstract
A method and apparatus for synthesizing anhydrous ammonia utilizing proton conducting electrolyte having a water vapor dissociating electrocatalyst on one side and a nitrogen dissociating electrocatalyst on the other side. A voltage is provided across the proton conducting electrolyte, protons are separated from the water vapor and transferred through the middle of the proton conducting electrolyte to the second side of the proton conducting electrolyte. Nitride ions are formed from nitrogen and the electrons provided by the voltage on the second side of the proton conducting electrolyte. The protons are then reacted with the nitride ions on the second side of the proton conducting electrolyte to produce anhydrous ammonia. A preferred proton conducting electrolyte is barium cerium oxide doped with about 10% ytterbium with a water vapor dissociating electrocatalyst of Ni and Pd, and a nitrogen dissociating electrocatalyst of Co and Ru.
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21 Claims
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1. A method for synthesizing anhydrous ammonia comprising the steps of:
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a. providing a proton conducting electrolyte having a first side and a second side, wherein at least a portion of the first side of the proton conducting electrolyte is provided in contact with a water vapor dissociating electrocatalyst and at least a portion of the second side of the proton conducting electrolyte is provided in contact with a nitrogen dissociating electrocatalyst, b. providing a voltage across the proton conducting electrolyte, c. exposing the first side of the proton conducting electrolyte to water vapor, and d. exposing the second side of the proton conducting electrolyte to nitrogen at a pressure of between about 10 atm and about 300 atm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for synthesizing anhydrous ammonia comprising the steps of:
- p1 a. providing a proton conducting electrolyte of barium cerium oxide doped with about 10% ytterbium having a first side and a second side,
b. providing the first side of the proton conducting electrolyte in contact with a water vapor dissociating electrocatalyst selected from the group consisting of Ni, Pd,and combinations thereof, c. providing the second side of the proton conducting electrolyte in contact with a nitrogen dissociating electrocatalyst selected from the group consisting of Co, Ru, and combinations thereof, d. providing a voltage across the proton conducting electrolyte, e. exposing the first side of the proton conducting electrolyte to water vapor, and f. exposing the second side of the proton conducting electrolyte to nitrogen at a pressure of between about 10 atm and about 300 atm.
- p1 a. providing a proton conducting electrolyte of barium cerium oxide doped with about 10% ytterbium having a first side and a second side,
Specification