Electrolysis Cell With Differential Salt Concentrations
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Solution Overview
Problem
Existing systems for generating hypochlorous acid through electrolysis lack efficiency in producing high concentrations of hypochlorous acid while minimizing salt-based residues in cleaning and sanitizing applications.
Innovation Solution
An electrolysis cell system with separate salt solutions of varying concentrations, where a first salt solution with lower concentration is used in the cathode chamber and a second salt solution with higher concentration is used in the anode chamber, controlled by a system that maintains preset salt concentrations and redirects a portion of the catholyte stream to enhance hypochlorous acid production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single salt solution is used in both cathode and anode chambers, then the system structure is simple, but hypochlorous acid production efficiency is low and salt residues remain in cleaning solution
Solution Approach 1:
The system divides the electrolysis cell into separate cathode and anode chambers with different salt concentrations. The cathode chamber uses a first salt solution while the anode chamber uses a second salt solution with higher salt concentration, allowing independent optimization of each chamber's function to maximize hypochlorous acid production while managing salt residue distribution
Solution Approach 2:
Different salt concentrations are applied to different chambers based on their specific functions. The anode chamber receives higher salt concentration to optimize hypochlorous acid generation, while the cathode chamber uses lower salt concentration to produce cleaner catholyte for cleaning applications, ensuring each region has the optimal properties for its purpose
2Productivity
If high salt concentration is used in anode chamber, then hypochlorous acid production increases, but salt residues increase in the system
Solution Approach 1:
The system extracts and separates the salt-containing anolyte stream from the low-salt catholyte stream through physical separation in the electrolysis cell. The catholyte stream, which contains minimal salt residues, is directed to cleaning applications while the anolyte stream containing hypochlorous acid and higher salt content is directed to sanitizing applications, effectively removing salt residue harm from the cleaning function
Solution Approach 2:
The system recovers and utilizes the separated streams for their appropriate functions: the low-salt catholyte is recovered for cleaning applications where salt residues are undesirable, while the high-salt anolyte with hypochlorous acid is recovered for sanitizing applications where disinfection is the priority, thus recovering value from what would otherwise be waste or harmful residues
3Productivity
If separate salt solutions with different concentrations are used in cathode and anode chambers, then hypochlorous acid production and cleaning quality improve, but system complexity increases
Solution Approach 1:
The electrolysis cell is segmented into distinct cathode and anode chambers with separate salt solution delivery systems. This segmentation allows independent control of salt concentrations in each chamber, enabling optimized hypochlorous acid production in the anode while maintaining low salt levels in the cathode for high-quality cleaning applications
Solution Approach 2:
The system changes the salt concentration parameter differently in each chamber: the anode chamber operates with higher salt concentration to maximize hypochlorous acid generation, while the cathode chamber operates with lower salt concentration to produce clean catholyte. This parameter differentiation resolves the contradiction by allowing each chamber to operate at its optimal concentration level
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 effectively increases hypochlorous acid production in the anolyte stream for disinfection while producing a low-salt catholyte stream for cleaning, reducing salt residues and maintaining consistent salt concentrations for high-quality disinfectant and cleaning solutions.
Implementation Method 1
electrolysis cell configured to generate a catholyte stream from the first salt solution in the cathode chamber and an anolyte stream from the second salt solution in the anode chamber, where the anolyte stream comprises hypochlorous acid
Data Source
AI summary
A system and method for generating hypochlorous acid, the system comprising an electrolysis cell, a first fluid line configured to direct a first salt solution to a cathode chamber of the electrolysis cell, and a second fluid line configured to direct a second salt solution to an anode chamber of the electrolysis cell, where the second salt solution has a greater salt concentration than the first salt solution.