Dehydrogenation reaction apparatus and control method thereof

Patent metadata

Field	Value
Publication number	US-2023182100-A1
Application number	US-202217874631-A
Country	US
Kind code	A1
Filing date	Jul 27, 2022
Priority date	Dec 13, 2021
Publication date	Jun 15, 2023
Grant date	—

Abstract

A dehydrogenation reaction apparatus is disclosed. An embodiment of the present disclosure provides a dehydrogenation reaction apparatus, including: a dehydrogenation reactor that includes a reaction vessel configured to store a chemical hydride, and at least one partition wall partitioning an inner space of the reaction vessel into a plurality of reaction chambers; and a buffer tank configured to temporarily store hydrogen generated in the dehydrogenation reactor and then supply the hydrogen to the fuel cell.

First claim

What is claimed is:

1 . A dehydrogenation reaction apparatus comprising:
a dehydrogenation reactor having a reaction vessel configured to store a chemical hydride, and at least one partition wall partitioning an inner space of the reaction vessel into a plurality of reaction chambers; and a buffer tank configured to temporarily store hydrogen generated in the dehydrogenation reactor and supply the hydrogen to a fuel cell.

2 . The dehydrogenation reaction apparatus of claim 1 , wherein the dehydrogenation reactor further comprises:
a first supply port formed in the reaction vessel and configured to supply an acid aqueous solution to each reaction chamber of the plurality of reaction chambers; a second supply port formed in the reaction vessel and configured to supply the chemical hydride to each reaction chamber of the plurality of reaction chambers; and a gas outlet formed in the reaction vessel and configured to discharge hydrogen generated in each reaction chamber of the plurality of reaction chambers.

3 . The dehydrogenation reaction apparatus of claim 1 , further comprising:
a cooling coil installed inside the reaction vessel, wherein the cooling coil is configured to circulate a refrigerant.

4 . The dehydrogenation reaction apparatus of claim 1 , further comprising:
a back pressure regulator disposed between the dehydrogenation reactor and the buffer tank.

5 . The dehydrogenation reaction apparatus of claim 1 , further comprising:
a mass flow meter disposed between the buffer tank and the fuel cell.

6 . The dehydrogenation reaction apparatus of claim 1 , further comprising:
an acid aqueous solution tank configured to store an acid aqueous solution; and a pump configured to pump the acid aqueous solution stored in the acid aqueous solution tank to the dehydrogenation reactor.

7 . The dehydrogenation reaction apparatus of claim 6 , further comprising:
a controller configured to adjust the acid aqueous solution supplied to the dehydrogenation reactor based on a use rate of hydrogen consumed in the fuel cell and an inner pressure of the buffer tank.

8 . The dehydrogenation reaction apparatus of claim 7 , wherein the controller is configured to supply the acid aqueous solution to the dehydrogenation reactor only when the inner pressure of the buffer tank is less than a reference pressure.

9 . The dehydrogenation reaction apparatus of claim 8 , wherein the controller is configured to supply the acid aqueous solution to one reaction chamber when the use rate of the hydrogen consumed in the fuel cell is less than or equal to a generation rate of the hydrogen generated in the reaction chamber.

10 . The dehydrogenation reaction apparatus of claim 8 , wherein the controller is configured to supply the acid aqueous solution to the plurality of reaction chambers when the use rate of the hydrogen consumed in the fuel cell exceeds a generation rate of the hydrogen generated in the reaction chamber.

11 . The dehydrogenation reaction apparatus of claim 1 , wherein an amount of hydrogen stored in the buffer tank is set to be equal to a total amount of hydrogen generated in one reaction chamber of the plurality of reaction chambers.

12 . A control method of a dehydrogenation reaction apparatus, the control method comprising:
providing the dehydrogenation reaction apparatus comprising: a dehydrogenation reactor having a reaction vessel storing a chemical hydride, and at least one partition wall partitioning an inner space of the reaction vessel into a plurality of reaction chambers; and a buffer tank temporarily storing hydrogen generated in the dehydrogenation reactor; measuring an inner pressure of the buffer tank; comparing a use rate of hydrogen consumed in a fuel cell with a generation rate of hydrogen generated in a reaction chamber of the plurality of reaction chambers when the inner pressure of the buffer tank is less than a reference pressure; and supplying an acid aqueous solution to one reaction chamber or a plurality of the reaction chambers based on the use rate of the hydrogen and the generation rate of the hydrogen.

13 . The control method of claim 12 , further comprising:
supplying the acid aqueous solution to one reaction chamber of the plurality of reaction chambers when the use rate of the hydrogen is less than or equal to the generation rate of the hydrogen.

14 . The control method of claim 12 , further comprising:
supplying the acid aqueous solution to the plurality of the reaction chambers when the use rate of the hydrogen exceeds the generation rate of the hydrogen.

15 . The control method of claim 12 , further comprising:
supplying the acid aqueous solution until all of the chemical hydride in the reaction chamber react.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp
• Korea Inst Sci & Tech

Inventors

• Kim Yongwoo
• Seo Jihui
• Lee Jaeyong
• Kim Pyung Soon
• Choung Jin Woo
• Kim Minkyu
• Kirk Jaewon
• Nam Suk Woo
• Jeong Hyangsoo
• Kim Yongmin

Classifications

• B01J7/00 Primary

  Apparatus for generating gases (production of inert gas mixtures B01J19/14; for generating specific gases, see the relevant subclasses, e.g. C01B, C10J {; in "air bags" on vehicles B60R21/26; for starter gas F02C7/26; blasting cartridges for producing gas under pressure F42B3/04}) · CPC title

• C07B35/04

  Dehydrogenation · CPC title

• C01B3/0005

  Reversible storage of hydrogen, e.g. by hydrogen getters or electrodes · CPC title

• Y02E60/50

  Fuel cells · CPC title

• C01B3/065 Primary

  by reaction of inorganic compounds with hydrides · CPC title