Electrolysis Hydrogen Origin Verification Through Deuterium Ratio Detection
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Solution Overview
Problem
Existing methods lack the ability to confirm whether hydrogen or molecules produced using hydrogen as a raw material are derived from water electrolysis, which is crucial for ensuring the quality and traceability of hydrogen-based fuels and chemical products.
Innovation Solution
A determination method and quality assurance method that utilize the abundance ratio of deuterium to light hydrogen in target molecules, determining if the ratio is less than a predetermined threshold to confirm electrolytic hydrogen-containing molecules, and an electrolysis device with a circulation and drainage system to adjust this ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrogen is produced by steam-reforming fossil fuels, then hydrogen production is efficient and cost-effective, but there is no way to confirm whether the hydrogen is produced by water electrolysis
Solution Approach 1:
The patent utilizes the parameter change in deuterium abundance ratio as water undergoes electrolysis. The electrolysis process preferentially consumes light hydrogen isotopes, causing the deuterium abundance ratio to decrease in the remaining water and increase in the produced hydrogen. This natural parameter change serves as a fingerprint to trace hydrogen origin without requiring complex additional equipment.
Solution Approach 2:
The patent introduces deuterium abundance ratio measurement as an intermediary method to indirectly determine hydrogen origin. Instead of directly tracking the electrolysis process or adding complex verification systems, the measurement of deuterium ratio in the hydrogen sample serves as a mediator that confirms whether the hydrogen is electrolytic in origin.
2Reliability
If molecules are produced using hydrogen from fossil fuels, then production cost is low, but quality assurance of electrolytic origin cannot be achieved
Solution Approach 1:
The patent replaces complex mechanical verification systems with a chemical/isotopic measurement approach. Instead of using complex physical or mechanical methods to verify hydrogen origin, the solution substitutes with measurement of deuterium abundance ratio, which can be performed using standard isotopic analysis techniques already available in industrial settings.
3Reliability
If water electrolysis is performed without deuterium ratio control, then energy consumption is low, but the ability to confirm electrolytic hydrogen is reduced
Solution Approach 1:
The patent implements a feedback mechanism where the deuterium abundance ratio of produced hydrogen is measured and used to confirm electrolytic origin. This feedback loop provides verification that the hydrogen meets the required criteria for being classified as electrolytic hydrogen, enabling quality assurance without interfering with the production process efficiency.
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
Enables confirmation of hydrogen and molecule production via water electrolysis, ensuring quality and traceability, particularly for hydrogen-based fuels and chemical products, using renewable energy.
Implementation Method 1
an electrolytic cell that electrolyzes water
Implementation Method 2
a circulation flow path where water to be electrolyzed in the electrolytic cell circulates
Data Source
AI summary
A determination method determines whether or not target molecules including elemental hydrogen are electrolytic hydrogen-containing molecules which include: hydrogen molecules produced by water electrolysis; or molecules produced using the hydrogen molecules as a raw material. In the determination method, the method includes determining that the target molecules are the electrolytic hydrogen-containing molecules when an abundance ratio of deuterium to light hydrogen in the target molecules is less than or equal to a predetermined threshold which is smaller than an abundance ratio of deuterium to light hydrogen in nature.