On-Site Peroxycarboxylic Acid Generator for Stable Disinfectant Formulation
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Solution Overview
Problem
Conventional peroxycarboxylic acid compositions have limited storage stability, requiring special containers and strict transportation guidelines, and often contain excess reagents to prevent decomposition, leading to increased costs and hazards.
Innovation Solution
A system for on-site generation of peroxycarboxylic acid forming compositions using sugar esters, which allows for continuous, user-specific formulation of individual or mixed peracid chemistries, reducing the need for excess reagents and improving stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If peroxycarboxylic acid compositions are stored for extended periods, then the peracids decompose into ordinary oxyacids and oxygen, but adding stabilizers and excess reagents increases cost and complexity
Solution Approach 1:
The system performs preliminary action by generating peroxycarboxylic acids on-demand before they are needed, rather than storing them. The generator creates fresh peracid compositions continuously or periodically, ensuring maximum potency without requiring stabilizers or excess reagents that would be needed for long-term storage.
Solution Approach 2:
The invention extracts the peroxycarboxylic acid generation function from commercial products and performs it on-site using a compact generator. This removes the need to store unstable peracid compositions and instead stores stable precursor materials (hydrogen peroxide and carboxylic acid) that can be converted to active peracids when needed.
2Stability of the object's composition
If peroxycarboxylic acids are shipped in special containers under DOT guidelines, then storage stability is improved, but transportation costs and hazards increase
Solution Approach 1:
The system segments the peroxycarboxylic acid into two separate stable components: hydrogen peroxide and carboxylic acid. These segmented components can be stored and transported safely without special DOT guidelines, then combined on-site to generate the active peracid composition when needed, eliminating transportation hazards.
Solution Approach 2:
The invention uses stable precursor materials (hydrogen peroxide and carboxylic acid) as intermediary substances that replace the need to transport unstable peroxycarboxylic acids. These intermediaries are safe to transport under normal conditions and are converted to the active peracid composition on-demand at the point of use.
3Stability of the object's composition
If excess reagents are added to prevent decomposition, then storage stability is improved, but the quantity of substance and cost increase
Solution Approach 1:
The system employs self-service by generating peroxycarboxylic acids on-demand from stable precursors, eliminating the need for stabilizers and excess reagents. The generator automatically mixes hydrogen peroxide and carboxylic acid in the correct stoichiometric ratios to produce fresh peracid compositions, ensuring stability without adding unnecessary substances.
Solution Approach 2:
The invention changes the temporal parameter of peracid availability from static (pre-mixed and stored) to dynamic (generated on-demand). By controlling when and how peracids are formed through the generator, the system maintains optimal concentration and stability without requiring excess reagents or stabilizers that would be needed in static formulations.
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 on-site generation system enhances the stability and efficacy of peroxycarboxylic acid compositions, reduces transportation costs and hazards, and eliminates waste by using stoichiometric reactions and eliminating the need for stabilizers.
Implementation Method 1
an adjustable biocide formulator or generator system for on-site peroxycarboxylic acid forming composition generation including an apparatus with a continuous or in-line reaction vessel, a series of feed pumps for providing reagents for forming the peroxycarboxylic acid forming composition
Data Source
AI summary
Methods and systems for on-site, continuous generation of peracid chemistry, namely peroxycarboxylic acids and peroxycarboxylic acid forming compositions, are disclosed. In particular, an adjustable biocide formulator or generator system is designed for on-site generation of peroxycarboxylic acids and peroxycarboxylic acid forming compositions from sugar esters. Methods of using the in situ generated peroxycarboxylic acids and peroxycarboxylic acid forming compositions are also disclosed.