Apparatus for producing organic hydride and method for producing organic hydride using same

Patent metadata

Field	Value
Publication number	US-2017314145-A1
Application number	US-201515528438-A
Country	US
Kind code	A1
Filing date	Nov 19, 2015
Priority date	Nov 21, 2014
Publication date	Nov 2, 2017
Grant date	—

Abstract

An organic hydride production apparatus that enables the reduction reaction at the cathode of an organic compound having an unsaturated bond to proceed at high current efficiency and at a low electric power consumption rate, and a method for producing an organic hydride that uses this production apparatus. The production apparatus includes a solid polymer electrolyte membrane having proton conductivity, a cathode which is provided on one surface of the solid polymer electrolyte membrane and generates a hydride by reducing a substance to be hydrogenated, a cathode chamber which houses the cathode and is supplied with the substance to be hydrogenated, an electrode catalyst-containing anode which is provided on the other surface of the solid polymer electrolyte membrane and generates protons by oxidizing water, and an anode chamber which houses the anode and is supplied with an electrolytic solution, wherein the substance to be hydrogenated is supplied from the lower end of the cathode chamber, the production apparatus has a hydride outlet through which the product and the like is discharged from the upper end of the cathode chamber, and at least one partition with a width of not less than 0.1 mm is formed inside the cathode camber.

First claim

1 . An organic hydride production apparatus comprising a solid polymer electrolyte membrane having proton conductivity, a porous cathode which is provided on one surface of the solid polymer electrolyte membrane and generates a hydride by reducing a substance to be hydrogenated, a cathode chamber which houses the porous cathode and is supplied with the substance to be hydrogenated, an electrode catalyst-containing anode which is provided on the other surface of the solid polymer electrolyte membrane and generates protons by oxidizing water, and an anode chamber which houses the anode and is supplied with an electrolytic solution, wherein
the substance to be hydrogenated is supplied from the lower end of the cathode chamber, the production apparatus has a hydride outlet through which a product, unreacted material of the substance to be hydrogenated and by-product hydrogen are discharged from the upper end of the cathode chamber, and at least one partition with a width of not less than 0.1 mm is formed inside the cathode camber.

2 . The organic hydride production apparatus according to claim 1 , wherein the partition is formed in at least the upper portion of the cathode chamber, and an area of a portion having the partition is not more than 20% of the effective projected electrode area.

3 . A method for producing an organic hydride using an organic hydride production apparatus comprising a solid polymer electrolyte membrane having proton conductivity, a porous cathode which is provided on one surface of the solid polymer electrolyte membrane and generates a hydride by reducing a substance to be hydrogenated, a cathode chamber which houses the porous cathode and is supplied with the substance to be hydrogenated, an electrode catalyst-containing anode which is provided on the other surface of the solid polymer electrolyte membrane and generates protons by oxidizing water, and an anode chamber which houses the anode and is supplied with an electrolytic solution, wherein
the method comprises supplying the substance to be hydrogenated from the lower end of the cathode chamber, and discharging a product, unreacted material of the substance to be hydrogenated and by-product hydrogen from the upper end of the cathode chamber.

4 . The method for producing an organic hydride according to claim 3 , wherein when the substance to be hydrogenated is supplied to the organic hydride production apparatus at a rated flow rate, if a pressure difference in the substance to be hydrogenated between two points at the lower end of the cathode is deemed ΔP L , and a pressure difference in a mixture of the substance to be hydrogenated and the product between two points at the upper end of the cathode is deemed ΔP H , then a relationship represented by the following formula is satisfied.
ΔP L ≦ΔP H /10

5 . The method for producing an organic hydride according to claim 3 , wherein when the substance to be hydrogenated is supplied at a rated flow rate, a pressure difference in a mixture of the substance to be hydrogenated and the product inside the cathode chamber is not less than 1 kPa/mm.

Assignees

• Nat Univ Corp Yokohama Nat Univ
• De Nora Permelec Ltd

Inventors

• Mitsushima Shigenori
• TAKAKUWA Yasutomo
• Nishiki Yoshinori
• Kato Akihiro
• Manabe Akiyoshi

Classifications

• C25B13/08

  based on organic materials · CPC title

• Y02P20/133

  Renewable energy sources, e.g. sunlight · CPC title

• C25B9/73

  of the filter-press type · CPC title

• C25B13/02

  characterised by shape or form · CPC title

• Y02E60/36

  Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title