Electrolyzer with pH Control and Molecular Filtration
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Solution Overview
Problem
Current electrolyzers for hydrogen gas production face challenges such as high production costs, low-life electrodes prone to corrosion, and low purity hydrogen gas output.
Innovation Solution
The system includes an electrolyzer with a divided electrolyte chamber, high-pressure water and hydrogen gas injection equipment, and a purification and compression system using molecular filter membranes to produce high-purity hydrogen gas efficiently, utilizing corrosion-resistant materials and a specific electrolyte solution pH management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrolysis methods are used, then hydrogen gas can be produced, but the production cost is high and electrode life is low due to corrosion
Solution Approach 1:
The patent changes the chemical parameters of the electrolyte by maintaining a high pH level (13-14) through automatic supplementation of alkaline electrolyte solution. This parameter change creates a corrosion-resistant environment that extends electrode life while using conventional electrode materials, thereby improving reliability without significantly increasing production cost.
Solution Approach 2:
The system incorporates an automatic electrolyte supplementation mechanism that monitors and maintains electrolyte pH levels without manual intervention. This self-service feature ensures optimal corrosion protection conditions are continuously maintained, extending electrode life and reducing maintenance costs associated with frequent electrode replacement.
2Manufacturing precision
If conventional electrolysis methods are used, then hydrogen gas can be produced, but the purity of hydrogen gas collected is low
Solution Approach 1:
The patent extracts and removes impurities from the hydrogen gas produced during electrolysis through a purification system. This extraction process separates hydrogen gas from other gases and contaminants, achieving high purity (99% or higher) while adding only moderate system complexity through integrated purification components.
3Reliability
If high pH electrolyte is used to prevent corrosion, then electrode life is extended, but energy consumption increases
Solution Approach 1:
The system maintains continuous electrolysis operation with automatic electrolyte supplementation, ensuring the high pH environment is continuously preserved without interruption. This continuity prevents corrosion throughout the operational lifecycle, extending electrode life. The automated system optimizes energy usage by maintaining steady-state operation rather than frequent start-stop cycles, balancing energy consumption with reliability improvement.
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
The system achieves high-purity hydrogen gas production (over 99.8%) with low energy consumption and cost-effective operation, using corrosion-resistant electrodes and efficient electrolysis processes.
Implementation Method 1
the electrolyte cell is arranged inside the electrolyte chamber, operable to perform the electrolysis creates hydrogen gas and oxygen gas
Implementation Method 2
a purification and compression system using molecular filter membranes to produce high-purity hydrogen gas
Data Source
AI summary
The present invention is to provide a system for producing hydrogen gas, comprising: an electrolyte solution supply system, an electrolyzer, a hydrogen gas purification system, and a hydrogen gas compression and drying system. Wherein the electrolyte solution supply system operable to supply the electrolyte solution; the electrolyzer operable to perform the electrolysis creates hydrogen gas and oxygen gas; the hydrogen gas purification system operable to the purification of hydrogen gas; and the hydrogen gas compression and drying system operable to dry and compress hydrogen gas to a pressure of a predetermined value. In addition, the invention also mentions a method for producing hydrogen gas to produce hydrogen gas with a purity of more than 99.8%.