Abstract: It is made possible to scale up the throughput of a chemical plant using microreactors. The chemical plant has a liquid sending line communicating with a raw material tank at a bifurcation of raw material and a means for detecting the flow of raw material and a control valve for adjusting the flow located in the line. In each branch line to each of the multiple microreactors connected in parallel, there are provided a means for monitoring the flow rate of raw material and a means for adjusting this flow rate. A control apparatus monitors the flow rate in each liquid sending line and adjusts the quantity of liquid sent from each control valve and each pump to avoid the influence of an air bubble or deposit in each line.

Abstract: A multi-parallel processing emulsification machine excellent in ease of priming and cleaning the interior of flow paths, capable of also coping with a liquid that precipitates is provided. A component through which a continuous phase to be the solvent of emulsion flows is stacked over a component through which a disperse phase to be the solute of the emulsion flows. Further, a component through which the produced emulsion flows is stacked thereover to form a microfluidic device for emulsification. When they are stacked together, multiple minute cross-shaped globule production portions are formed and in these globule production portions, the disperse phase flows from downward to upward. The continuous phase merges into them from left and right to form a sheath flow in which the continuous phase encircles the circumference of the disperse phase. In the sheath flow, the disperse phase is divided and turned into globules by a difference in velocity of flow between the continuous phase and the disperse phase.