Hydrogen production system

Patent metadata

Field	Value
Publication number	US-12595170-B2
Application number	US-202318164897-A
Country	US
Kind code	B2
Filing date	Feb 6, 2023
Priority date	Mar 28, 2022
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

A hydrogen production system includes: a hydrogen compound slurry in which a hydrogen compound member is suspended in a solvent containing water; a first vessel; a second vessel having an internal temperature higher than that of the first vessel; a first passage connecting the first vessel and the second vessel; and a second passage connecting the first vessel and the second vessel and different from the first passage. The hydrogen production system is configured to allow the hydrogen compound slurry contained in the first vessel to move into the second vessel through the first passage, and the hydrogen compound slurry contained in the second vessel to move into the first vessel through the second passage.

First claim

The invention claimed is:

1 . A hydrogen production system, comprising:
a first vessel; a second vessel having an internal temperature higher than that of the first vessel; a first passage connecting the first vessel and the second vessel; and a second passage connecting the first vessel and the second vessel and different from the first passage, wherein at least one of the first vessel and the second vessel contain a hydrogen compound slurry in which a hydrogen compound member is suspended in a solvent containing water, wherein when an element other than hydrogen is defined as X, the hydrogen compound member has a configuration in which a powder containing two-dimensional arrangement of a hydrogen compound represented by a chemical formula X m H n is impregnated on a particulate support, a stoichiometric ratio min is 1:1 to 3:4, and the element X is boron, wherein the hydrogen production system further comprising:
a water supply device for supplying water to the first vessel; and
a hydrogen compound supply device for supplying the hydrogen compound member to the first vessel,
wherein the hydrogen compound supply device includes:
a storage for storing the hydrogen compound slurry;
a slurry supply passage connecting the storage and the first vessel; and
a supply pump, disposed on the slurry supply passage, for supplying the hydrogen compound slurry in the storage to the first vessel, and
wherein the hydrogen production system is configured to allow the hydrogen compound slurry contained in the first vessel to move into the second vessel through the first passage, and the hydrogen compound slurry contained in the second vessel to move into the first vessel through the second passage.

2 . The hydrogen production system according to claim 1 , comprising:
a first temperature adjustment device for adjusting a temperature of the hydrogen compound slurry in the first vessel; and a second temperature adjustment device for adjusting a temperature of the hydrogen compound slurry in the second vessel.

3 . The hydrogen production system according to claim 1 , comprising:
a first pump, disposed on the first passage, for transferring the hydrogen compound slurry in the first vessel to the second vessel; and a second pump, disposed on the second passage, for transferring the hydrogen compound slurry in the second vessel to the first vessel.

4 . The hydrogen production system according to claim 2 ,
wherein the second passage is disposed vertically above the first passage, wherein the first temperature adjustment device is disposed in the first vessel so as to be located above a position where the first passage is connected to the first vessel, and wherein the second temperature adjustment device is disposed in the second vessel so as to be located below a position where the first passage is connected to the second vessel.

5 . The hydrogen production system according to claim 1 , comprising a heat exchanger for exchanging heat between the hydrogen compound slurry flowing through the first passage and the hydrogen compound slurry flowing through the second passage.

6 . The hydrogen production system according to claim 1 , comprising:
a discharge device for discharging the hydrogen compound slurry in the second vessel.

7 . The hydrogen production system according to claim 6 ,
wherein the discharge device includes a solid-liquid separator for separating the hydrogen compound slurry into solid and liquid phases.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Tanaka Atsushi
• Seiki Yoshio
• Seto Shuntaro
• Ito Hideki
• Nishino Hidekazu
• Toyoda Ichirou

Classifications

• C01B3/065 Primary

  by reaction of inorganic compounds with hydrides · CPC title

• C01B3/042

  Decomposition of water (by electrolysis of water C25B1/04) · CPC title

• B01J20/0248

  Compounds of B, Al, Ga, In, Tl (B01J20/08 takes precedence) · CPC title

• B01J7/02

  by wet methods · CPC title

• Y02E60/36

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