ELECTROCHEMICAL REDUCTION DEVICE AND PROCESS FOR PRODUCING PRODUCT OF HYDROGENATION OF AROMATIC HYDROCARBON COMPOUND OR NITROGENOUS HETEROCYCLIC AROMATIC COMPOUND

摘要

An embodiment of the present invention includes: an electrolyte film (110) constituted of an ionomer; a reduction electrode (120) in which a reduction catalyst that contains Pt and/or Pd is used; an electrode (130) for oxygen generation which includes a catalyst based on a noble metal oxide such as RuO2 or IrO2; a hydrogen gas generation amount determination part (36) which determines the amount of hydrogen gas that passes through a pipeline (31) together with an aromatic hydrocarbon compound or nitrogenous heterocyclic aromatic compound, the amount (F1) of generated hydrogen gas being calculated on the basis of said amount; and a control unit (60) which gradually heightens the voltage applied between the reduction electrode (120) and the electrode (130) for oxygen generation, so as to satisfy F1<=F0 and VCA>[VHER-(acceptable potential difference)], where VTRR is the standard oxidation/reduction potential of the aromatic hydrocarbon compound or nitrogenous heterocyclic aromatic compound, VCA is the potential of the reduction electrode (120), and F0 is the acceptable upper limit of the hydrogen gas generation amount, and which stops the electrode reactions in cases when F1>F0.