Plasma Ammonia Generator Using Nitrogen Oxide Reduction
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Solution Overview
Problem
Current ammonia production processes, such as the Haber-Bosch process, are energy-intensive and contribute significantly to global carbon dioxide emissions, necessitating the development of a more efficient and environmentally friendly method for ammonia generation.
Innovation Solution
A plasma-based ammonia generator that produces ammonia using nitrogen oxides generated through plasma reactions, involving a plasma reactor to generate nitrogen monoxide and hydrogen from water, and a secondary reactor, either catalytic or electrochemical, to convert these gases into ammonia, with additional ammonia generated from a nitrate solution produced in the plasma reactor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the Haber-Bosch process is used for ammonia production, then high ammonia output is achieved, but high energy consumption and high carbon dioxide emissions occur
Solution Approach 1:
The patent changes the fundamental parameters of the ammonia synthesis process by using plasma-generated nitrogen oxides and electrochemical reduction instead of the traditional high-temperature (350-550°C) and high-pressure (150-350 bar) Haber-Bosch conditions. This parameter transformation enables ammonia production at lower energy input while maintaining productivity
Solution Approach 2:
The patent replaces the mechanical/thermal system of the Haber-Bosch process with a plasma-based system followed by electrochemical reduction. The plasma reactor generates nitrogen oxides from nitrogen and oxygen, which are then reduced electrochemically to ammonia, substituting the traditional thermal-mechanical approach with a combined plasma-electrochemical system
2Productivity
If the Haber-Bosch process is used for ammonia production, then high ammonia output is achieved, but high carbon dioxide emissions occur
Solution Approach 1:
The patent replaces the fossil fuel-dependent thermal process with a plasma-electrochemical system that can use renewable energy sources. The plasma reactor and electrochemical cells eliminate the need for carbon-intensive hydrogen production and ammonia synthesis, thereby eliminating carbon dioxide emissions while maintaining ammonia productivity
Solution Approach 2:
By changing the fundamental reaction pathway from thermal catalysis to plasma-mediated electrochemical reduction, the patent eliminates the carbon emissions inherent in the Haber-Bosch process while preserving high ammonia output through efficient multi-stage conversion
3Use of energy by moving object
If plasma reactor is used to generate nitrogen oxides and hydrogen, then low energy consumption is achieved, but complex multi-reactor system is required
Solution Approach 1:
The patent segments the ammonia production process into distinct functional modules: a plasma reactor for generating nitrogen oxides and hydrogen, a first reactor for initial ammonia synthesis, and a second reactor for additional ammonia generation from nitrate solution. This segmentation allows each component to be optimized for its specific function while maintaining overall system efficiency and manageable complexity
Solution Approach 2:
The plasma reactor serves multiple functions: generating nitrogen oxides, producing hydrogen, and creating nitrate solutions. This multi-functionality reduces the need for separate units and simplifies the overall system architecture while maintaining low energy consumption through efficient resource utilization
4Productivity
If catalytic reactor and electrochemical cell are used, then ammonia generation efficiency is improved, but device complexity increases
Solution Approach 1:
The patent divides the ammonia generation process into two specialized reactors: a catalytic reactor for primary ammonia synthesis from nitrogen oxides and hydrogen, and an electrochemical cell for additional ammonia production from nitrate solutions. This segmentation enables each reactor to be optimized for its specific chemical pathway, improving overall efficiency while keeping each individual unit relatively simple
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the efficient and eco-friendly production of ammonia with reduced fuel consumption and carbon dioxide emissions, improving the overall energy efficiency and environmental impact of the process.
Implementation Method 1
a plasma reactor that generates a plasma discharge using nitrogen (N2) as a discharge gas, generates hydrogen (H2) and oxygen (O2) from water (H2O) using energy of the plasma, generates nitrogen monoxide (NO) from the oxygen (O2) and the nitrogen (N2)
Implementation Method 2
The first reactor may be formed as a catalytic reactor that generates ammonia by catalyzing the nitrogen (N2), the nitrogen monoxide (NO), and the hydrogen (H2)
Implementation Method 3
The second reactor may be formed as an electrochemical cell that additionally directly generates the ammonia (NH3) by electrochemical action on a nitrate solution (NO3−)
Data Source
AI summary
An ammonia generator using plasma according to an embodiment of the present invention includes a plasma reactor that generates a plasma discharge using nitrogen (N2) as a discharge gas, generates hydrogen (H2) and oxygen (O2) from water (H2O) using energy of the plasma, generates nitrogen monoxide (NO) from the oxygen (O2) and the nitrogen (N2), and supplies the hydrogen (H2) and the nitrogen monoxide (NO), a first reactor that generates ammonia (NH3) by first action on the nitrogen (N2), the nitrogen monoxide (NO), and the hydrogen (H2) supplied from the plasma reactor, and a second reactor that additionally generates the ammonia (NH3) by second action on a nitrate solution (NO3−) generated in the plasma reactor.