Microreactor Nanomaterial Synthesis via Continuous Flow Mixing
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Solution Overview
Problem
Current systems for producing nanoparticles are inefficient, unreliable, and lack control over flow rates and mixing, leading to incorrect particle proportions, large particle sizes, and scalability issues, particularly in the pharmaceutical and chemical industries.
Innovation Solution
The system continuously processes two liquid feed streams through an in-line mixer and high-pressure pump, achieving a homogeneous mixture that is then pressurized to a microreactor with dimensions of 500 microns or less, allowing for precise control of flow rates and interaction at a nanoscale level, ensuring accurate particle size distribution and composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional mixing technologies (cavitation, high pressure homogenizers) are used, then particle dispersion is achieved, but material stress, energy consumption, and process complexity increase
Solution Approach 1:
The patent replaces conventional mechanical mixing systems (cavitation devices, high pressure homogenizers) with a microfluidic mixing system that uses controlled fluid flow through microchannels to achieve particle dispersion. This substitution reduces energy consumption and material stress while maintaining effective mixing through precisely controlled fluid dynamics at the microscale.
Solution Approach 2:
The invention changes the scale parameter from macro-scale conventional mixing to micro-scale fluidic mixing. By reducing the characteristic length scale to micrometers, the system achieves enhanced mixing efficiency through increased surface area to volume ratio and controlled laminar flow patterns, thereby reducing energy requirements and process complexity.
2Manufacturing precision
If multi-step processing is used, then product quality is achieved, but process complexity and time requirements increase
Solution Approach 1:
The patent merges multiple processing steps (mixing, reaction, particle formation) into a single integrated microfluidic device. The microreactor system performs all operations continuously in one pass through the device, eliminating the need for separate batch processing steps and reducing overall process complexity while maintaining product quality.
Solution Approach 2:
The invention transitions from batch processing to continuous flow processing. The microfluidic system maintains continuous operation where reactants flow continuously through the device, enabling uninterrupted production and eliminating the start-stop nature of batch processes, thereby reducing time requirements and simplifying the overall manufacturing workflow.
3Stability of the object's composition
If batch systems are used, then mixing is achieved, but productivity is limited
Solution Approach 1:
The patent implements continuous flow processing through the microreactor system, where reactants are continuously pumped through the device and products are continuously formed and discharged. This continuous operation eliminates the downtime associated with batch processing (loading, unloading, cleaning between batches), thereby significantly increasing productivity while maintaining consistent mixing quality through controlled flow rates.
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
This approach enables efficient, continuous, and reliable production of nanoparticles with precise control over particle size and composition, overcoming previous limitations in scalability and energy efficiency, and facilitating enhanced mixing and reaction phenomena.
Implementation Method 1
pumping the substantially homogeneous mixture to a high pressure pump; pressurizing the substantially homogeneous mixture within the high pressure pump to an elevated pressure
Implementation Method 2
The flow patterns within process units and their associated transfer lines have a significant impact upon mass, energy and momentum transport rates and reaction proficiency
Implementation Method 3
enhancing and/or promoting a host of mixing and/or reaction phenomena
Implementation Method 4
The role of hydrodynamics should not be underestimated in any facet of the engineering sciences. The flow patterns within process units and their associated transfer lines have a significant impact upon mass, energy and momentum transport rates
Data Source
AI summary
A method for continuously processing at least two liquid feed streams is provided. A system for continuously processing at least two liquid feed streams is also provided.