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

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

Inactive Publication Date: 2014-12-10
JX NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reaction, high temperature and high pressure reaction conditions are necessary, 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 nitrogen-containing heterocyclic aromatic compound
  • Electrochemical reduction device, and method for producing hydrogenated product of aromatic hydrocarbon compound or nitrogen-containing heterocyclic aromatic compound
  • Electrochemical reduction device, and method for producing hydrogenated product of aromatic hydrocarbon compound or nitrogen-containing heterocyclic aromatic compound

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Experimental program
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Embodiment approach 1

[0028] figure 1 It is a schematic diagram of the schematic structure of the electrochemical reduction apparatus 10 of embodiment. figure 2 It is a diagram showing a schematic configuration of an electrode unit included in the electrochemical reduction device 10 according to the embodiment. like figure 1 As shown, the electrochemical reduction device 10 includes an electrode unit 100 , a power control unit 20 , an organic matter storage tank 30 , a water storage tank 40 , a gas-water separator 50 , and a control unit 60 .

[0029] The power 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 power control unit 20 is connected to the positive electrode of the electrode unit 100 . The negative output terminal of the power control unit 20 is connected to the negative electrode of the electrode unit 100 . Accordingly, a predetermined voltage is applied between t...

Embodiment approach 2

[0088] Figure 5 It is a schematic diagram showing the schematic structure of the electrochemical reduction device of Embodiment 2. like Figure 5 As shown, the electrochemical reduction device 10 includes an electrode unit assembly 200 , a power control unit 20 , an organic matter storage tank 30 , a water storage tank 40 , a gas-water separation unit 50 , and a control unit 60 . The electrode unit assembly 200 has a laminated 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. In addition, the structure of each electrode unit 100 is the same as that of Embodiment 1. FIG. exist Figure 5 In the drawing, the electrode unit 100 is omitted from illustration, and the liquid diffusion layers 140a, 140b, and the separators 150a, 150 are omitted.

[0089] The positive output terminal of the power control unit 20 in this embodiment is connected to the positive terminal of the electrode un...

Embodiment approach 3

[0099] Image 6 It is a schematic diagram showing the schematic structure of the electrochemical reduction device of Embodiment 3. The basic structure of the electrochemical reduction device 10 of the present embodiment is the same as that of the second embodiment. In this embodiment, the electrode unit assembly 200 is housed in the electrolytic tank 300 . A second circulation path is provided between the electrolytic tank 300 and the water storage tank 40 , and the electrolytic tank 300 is filled with water supplied from the water storage tank 40 . The oxygen-generating electrode 130 of each electrode unit 100 is capable of flowing water filled with the electrolytic cell 300 .

[0100] The electrochemical reduction device 10 of this embodiment, in addition to the effects obtained in Embodiment 2, has the effect of increasing the in-plane temperature difference of the oxygen generating electrode 130, the temperature difference between electrode units, and The advantages of ...

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Abstract

This electrochemical reduction device (10) is provided with an electrode unit (100), a power control unit (20), an organic matter storage tank (30), a water storage tank (40), a steam separator (50) and a control unit (60). This electrode unit (100) has an electrolyte film (110), a reduction electrode (120) and an oxygen-generating electrode (130). The electrolyte film (110) is formed from ionomers. The reduction catalyst used in the reduction electrode (120) contains at least one of Pt and Pd. This oxygen-generating electrode (130) contains a noble metal oxide catalyst such as RuO2, IrO2, etc. Representing the potential in the reversible hydrogen electrode as VHER, the standard redox potential of an aromatic hydrocarbon compound or nitrogen-containing heterocyclic aromatic compound as VTRR, and the potential of the reduction electrode (120) as VCA, the control unit (60) controls the power control unit (20) such that the relation VHER-20mV @ VCA @ VTRR is satisfied.

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] It is known that cyclic organic compounds such as cyclohexane and decahydronaphthalene can be efficiently obtained by nuclear hydrogenation of corresponding aromatic hydrocarbon compounds (benzene, naphthalene) using hydrogen. For this reaction, high-temperature and high-pressure reaction conditions are necessary, and therefore, production on a small to medium scale is not suitable. In contrast, it is known that the electrochemical reaction using an electrolytic cell can use water as a hydrogen source, so there is no need to handle gaseous hydrogen, and the reaction conditions are relatively mild (normal temperature to about 200°C, normal pressure). . [0003] [Prior Art Literature] [0004] 〔Patent Document〕 [0005] Patent Document 1: Japanes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B15/02C25B3/04C25B9/00C25B3/25C25B9/17C25B9/23
CPCC25B3/04C25B15/02C25B3/25C25B9/23C25B9/17
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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