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Electrochemical reduction device, and method for producing hydrogenated product of aromatic hydrocarbon compound or nitrogenated heterocyclic aromatic compound

A technology of aromatic compounds and aromatic compounds, applied in reduction electrolysis, electrolysis process, electrolysis components, etc.

Inactive Publication Date: 2015-02-25
JX NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this reaction, high-temperature and high-pressure reaction conditions are required, so it is not suitable for small to medium-scale production

Method used

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  • Electrochemical reduction device, and method for producing hydrogenated product of aromatic hydrocarbon compound or nitrogenated heterocyclic aromatic compound
  • Electrochemical reduction device, and method for producing hydrogenated product of aromatic hydrocarbon compound or nitrogenated heterocyclic aromatic compound
  • Electrochemical reduction device, and method for producing hydrogenated product of aromatic hydrocarbon compound or nitrogenated heterocyclic aromatic compound

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Embodiment approach 1

[0029] figure 1 It is a schematic diagram showing the schematic configuration of the electrochemical reduction device 10 according to the embodiment. figure 2 It is a diagram showing a schematic configuration of an electrode unit 100 included in the electrochemical reduction device 10 according to the embodiment. Such as figure 1 As shown, the electrochemical reduction device 10 includes an electrode unit 100, an electrical control unit 20, an organic matter storage tank 30, a hydrogen generation measurement unit 36, a water storage tank 40, a gas-water separation unit 50, a gas-liquid separation unit 52, and a control unit. 60 and the hydrogen recovery unit 210.

[0030] The electrical control unit 20 is, for example, a DC / DC converter that converts an output voltage of a power supply into a predetermined voltage. The positive output terminal of the electrical control unit 20 is connected to the positive electrode of the electrode unit 100 . The negative output terminal ...

Embodiment approach 2

[0080] Figure 4 It is a schematic diagram showing the schematic configuration of the electrochemical reduction device 10 according to the second embodiment. Such as Figure 4 As shown, the electrochemical reduction device 10 includes an electrode unit assembly 200, an electrical control unit 20, an organic matter storage tank 30, a hydrogen generation measurement unit 36, a water storage tank 40, a gas-water separation unit 50, a gas-liquid separation unit 52, The control unit 60 , the voltage detection unit 114 and the hydrogen recovery unit 210 . The electrode unit assembly 200 has a stacked structure in which a plurality of electrode units 100 are connected in series. In this embodiment, the number N of electrode units 100 is five, but the number of electrode units 100 is not limited thereto. It should be noted that the structure of each electrode unit 100 is the same as that of the first embodiment. exist Figure 5 In FIG. 2 , the electrode unit 100 is omitted from i...

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Abstract

In one embodiment of the present invention, an electrolyte membrane (110) is formed from an ionomer. A reduction catalyst to be used in a reduction electrode (120) contains Pt and / or Pd. An electrode for oxygen generation use (130) contains a catalyst composed of a noble metal oxide such as RuO2 and IrO2. A generated hydrogen gas quantity measurement unit (36) measures the quantity of a hydrogen gas that passes through a pipe (31) together with an aromatic hydrocarbon compound or a nitrogenated heterocyclic aromatic compound and calculates the quantity (F1) of the generated hydrogen gas on the basis of the measurement value. A control unit (60) gradually increases the voltage between the reduction electrode (120) and the electrode for oxygen generation use (130) within a range that fulfills the requirements represented by the formulae: F1 <= F0 and VCA > (VHER - allowable potential difference) wherein VTRR represents the standard oxidization-reduction potential of the aromatic hydrocarbon compound or the nitrogenated heterocyclic aromatic compound, VCA represents the potential of the reduction electrode (120), and F0 represents the allowable upper limit of the quantity of the generated hydrogen gas.

Description

technical field [0001] The present invention relates to a device and a method for electrochemically hydrogenating aromatic hydrocarbon compounds or nitrogen-containing heterocyclic aromatic compounds. Background technique [0002] Cyclic organic compounds such as cyclohexane and decahydronaphthalene are known to be efficiently obtained by nuclear hydrogenation of corresponding aromatic hydrocarbon compounds (benzene, naphthalene) with hydrogen. In this reaction, high-temperature and high-pressure reaction conditions are required, so it is not suitable for small to medium-scale production. In contrast, electrochemical reactions using electrolytic cells are known to use water as a hydrogen source, so gaseous hydrogen does not need to be treated, and the reaction conditions are relatively mild (normal temperature to about 200°C, normal pressure). [0003] [Prior Technical Documents] [0004] 〔Patent Document〕 [0005] [Patent Document 1] Japanese Unexamined Patent Publicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B15/02C25B3/04C25B9/00C25B3/25
CPCC25B3/04C25B15/02C25B3/25
Inventor 佐藤康司三好康太中川幸次郎小堀良浩
Owner JX NIPPON OIL & ENERGY CORP
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