Flow-through reactor for continuous peroxide quenching
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Solution Overview
Problem
Existing reactors face challenges in scaling up the continuous quenching of peroxide mixtures generated from ozonolysis due to complexity, instability of ozonides, and safety concerns, particularly in controlling heat and managing reactive intermediates effectively.
Innovation Solution
A flow-through reactor design that allows for adjustable residence time and optimal heat removal, constructed from stainless steel or nickel-alloy piping, with optional circulatory pumps and heat exchangers, enabling synchronized quenching of peroxide mixtures and minimizing accumulation of unstable ozonides, thus enhancing safety and scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If microchannels are used for continuous quenching of peroxide mixtures, then the reactor size is reduced, but scalability is limited and process complexity increases
Solution Approach 1:
The patent employs dynamic flow control through adjustable flow rates and residence times to optimize quenching conditions. The system dynamically adapts to different peroxide mixture compositions and stabilities by controlling the flow of quenching reagent and peroxide mixture through the reactor, allowing scalable operation from lab to production scale without fixed geometric constraints.
Solution Approach 2:
The reactor system is designed with universal applicability to handle various peroxide mixtures with different stabilities and compositions. By using a standardized flow-through reactor design that can accommodate different quenching chemistries through flow rate adjustment rather than physical modification, the system achieves both compact size and scalability across different application scenarios.
2Volume of moving object
If microchannels are used for continuous quenching, then reactor size is reduced, but residence time control becomes difficult and process complexity increases
Solution Approach 1:
The system uses dynamic flow control mechanisms with independently adjustable flow rates for the peroxide mixture and quenching reagent. This allows precise control of residence time through flow rate adjustment rather than fixed geometric constraints, making the compact reactor equally easy to operate for different residence time requirements.
3Adaptability or versatility
If ozonides with different stabilities are processed, then product diversity is achieved, but processing requirements become highly variable and quenching effectiveness decreases
Solution Approach 1:
The system maintains reliable quenching effectiveness across different ozonide stabilities by dynamically adjusting operational parameters including flow rates, residence times, and quenching reagent concentrations. This parameter optimization ensures effective quenching whether processing highly unstable or highly stable ozonides, maintaining both product diversity and quenching reliability.
4Quantity of substance
If quenching reagents are added to peroxide mixtures, then peroxide decomposition is achieved, but heat release increases reactivity and may cause run-away events
Solution Approach 1:
The system applies preliminary cooling measures by pre-cooling the quenching reagent and maintaining the reactor at controlled temperatures before and during the quenching reaction. This preliminary anti-action counteracts the exothermic heat release, preventing temperature runaway and maintaining safe operating conditions throughout the peroxide decomposition process.
Solution Approach 2:
The flow-through reactor design acts as an intermediary system that facilitates controlled heat management during quenching. By using a continuous flow system with controlled residence time and optional heat exchange, the reactor mediates between the exothermic quenching reaction and the surrounding environment, dissipating heat gradually and preventing run-away events.
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 flow-through reactor design effectively manages the quenching of peroxide mixtures, reducing reactivity and safety risks, allowing for scalable and cost-effective continuous processing while maintaining control over reaction conditions.
Implementation Method 1
The reactor may be constructed using stainless steel or metal-alloy piping of a small enough dimension that would allow for optimal heat removal
Implementation Method 2
optionally, a circulatory pump (CP), a heat exchanger (HE), or both
Data Source
AI summary
This disclosure relates to a highly efficient and safe reactor for the continuous quenching of peroxide mixtures generated during the reaction of unsaturated compounds with ozone, which minimizes the amount of highly reactive peroxides accumulated in the reactor at any given time. The reactor may be modified to allow for expansion to accommodate the quenching parameters of a wide variety of ozonolysis reactions and flow rates. The reactor may be constructed from highly pressure rated stainless steel for maximum durability, safety, and economic practicality while increasing the safety of peroxide quenching, thus allowing tighter process control and improved product yields. This disclosure also related to methods for quenching ozonides.