Modular Micro-Flow Photocatalysis for Clog-Resistant Scale-Up
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Solution Overview
Problem
Existing flow synthesis technologies face challenges such as clogging, mismatched reaction times, and high equipment costs, particularly in scaling up heterogeneous photocatalysis, which are difficult to customize and handle slow reactions effectively.
Innovation Solution
A micro-flow system comprising a tubing reactor, actuator, and heterogeneous catalyst configured for tandem flow within the reactor lumen, allowing for automated and scalable synthesis of compounds, with features like high flow rates and light penetration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous-flow reactors are used for heterogeneous photocatalysis, then scaling up and uniform light irradiation are improved, but clogging risks and pressure drop increase
Solution Approach 1:
The reactor system is divided into multiple modules that can be configured in series or parallel. Each module contains separate catalyst beds, allowing continuous flow while maintaining manageable pressure drops and minimizing clogging risks through distributed architecture rather than a single large reactor volume.
Solution Approach 2:
The system incorporates adjustable flow rates and variable residence times through modular configuration. The ability to dynamically adjust operational parameters allows optimization of flow velocity to prevent clogging while maintaining sufficient contact time for reaction completion.
2Productivity
If specialized flow synthesis equipment is used, then continuous processing and safety are improved, but equipment investment and customization difficulty increase
Solution Approach 1:
The modular reactor system is designed with universal interfaces and standardized components that can accommodate various photocatalytic reactions and scale configurations. The same basic module architecture serves multiple functions including different catalyst types, reaction modes (batch/continuous), and scale levels, reducing overall equipment investment while maintaining continuous processing capability.
3Manufacturing precision
If long reaction times are required for slow reactions, then conversion completeness is improved, but pressure drop and infrastructure complication increase
Solution Approach 1:
The total reaction time is distributed across multiple modular sections. Instead of requiring a single long reactor, the system uses several shorter modules in series, each contributing a portion of the total residence time. This segmentation reduces the length and complexity of individual infrastructure components while achieving the required total reaction time for slow reactions.
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 enables efficient, scalable, and safe synthesis of compounds by avoiding clogging and enabling long reaction times, improving yield and purity, and allowing for automation and easy customization.
Implementation Method 1
Photo-harvesting catalysts can promote single-electron transfer (SET), energy transfer, or hydrogen atom transfer (HAT) to access reactive open-shell species or pump to energy uphill intermediates
Implementation Method 2
Photo-harvesting catalysts can promote single-electron transfer (SET), energy transfer, or hydrogen atom transfer (HAT) to access reactive open-shell species or pump to energy uphill intermediates
Implementation Method 3
Photo-harvesting catalysts can promote single-electron transfer (SET), energy transfer, or hydrogen atom transfer (HAT) to access reactive open-shell species or pump to energy uphill intermediates
Implementation Method 4
continuous-flow reactors have received more attention for scaling-up of photochemical reactions as a critical outcome of the Beer-Lambert Law
Implementation Method 5
continuous-flow reactors have received more attention for scaling-up of photochemical reactions as a critical outcome of the Beer-Lambert Law
Implementation Method 6
a heterogeneous catalyst in fluid communication with the lumen; wherein the heterogeneous catalyst is configured to flow in tandem with the reactant in order to catalyse the reactant to form the compound
Data Source
AI summary
The present disclosure concerns a micro-flow system for synthesis of a compound, comprising a tubing reactor configured to flow a reactant within its lumen thereof, an actuator for regulating the flow of the reactant in the lumen and a heterogeneous catalyst in fluid communication with the lumen. The present disclosure also concerns a method of micro-flow synthesising a compound using the micro-flow system.