Organic hydride production device, water removal device, and water removal method

A control system of an organic compound production device comprising an electrolyzer and a water removal device, wherein:

• the electrolyzer comprises an anode electrode that oxidizes water in an anolyte to generate a proton, a cathode electrode that hydrogenates a compound raw material in a catholyte with the proton to generate an organic compound, and a membrane that separates the anode electrode and the cathode electrode and moves the proton together with dragged water from a side of the anode electrode to a side of the cathode electrode;
• the water removal device comprises a container, a drain pipe, a detector, and a switcher;
• the container stores the catholyte containing the dragged water;
• the detector detects a state of the dragged water in the container;
• the switcher is capable of switching between a regulation state in which drainage from the drain pipe is regulated and an execution state in which the drainage is executed;
• and
• the switcher is configured to switch from the regulation state to the execution state based on a detection result of the detector.