Pressurized Solvent Extraction Flow Control for Parallel Microchannels

The patent combines multiple microreactors into a single integrated apparatus with a common feed line that branches into multiple parallel reaction channels. This merging approach allows multiple reaction units to operate simultaneously (increasing productivity) while sharing common external components like the feed pump and mixing system, thereby reducing overall device complexity and manufacturing cost compared to having separate microreactor systems.

The patent segments the reaction system into multiple parallel channels within a single microreactor apparatus. Each channel can be independently optimized for specific reactions while maintaining unified control through the common feed line. This segmentation enables increased production capacity through parallel processing without requiring completely separate apparatuses, thus balancing productivity improvement with complexity management.

The patent introduces flow control elements (such as flow control valves or varying channel dimensions) at different locations along the parallel channels to compensate for flow distribution inequalities. By applying localized adjustments to each channel's flow characteristics, the system maintains stable flow rates in all channels while preserving the benefits of parallel processing for increased productivity.

The patent incorporates flow detection and control mechanisms that monitor the flow distribution across parallel channels and automatically adjust flow control elements to maintain balanced flow rates. This feedback system ensures stable flow composition in each channel, preventing the deterioration of flow stability that would otherwise occur with simple channel branching.

The patent designs a universal feed line system with a single pump that serves multiple parallel microreactor channels. This multi-functional approach allows one pump to control liquid flow to several reaction units simultaneously, reducing the total number of pumps required. Consequently, the system achieves effective flow control across all channels while significantly lowering manufacturing costs compared to having dedicated pumps for each microreactor.

Instead of using multiple expensive pumps, the patent employs a single pump combined with flow splitting mechanisms (such as T-junctions and flow control elements) to replicate the flow control function across multiple channels. This copying approach distributes the flow control function through the fluid pathway rather than through multiple separate mechanical pumps, reducing manufacturing cost while maintaining operational effectiveness.