Hydrogen production reactor including carbon monoxide removing unit

Patent metadata

Field	Value
Publication number	US-10899612-B2
Application number	US-201715700741-A
Country	US
Kind code	B2
Filing date	Sep 11, 2017
Priority date	Nov 14, 2016
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

Provided is a hydrogen production reactor as a reactor producing a reforming gas including hydrogen, in which a burning unit and a reforming unit are sequentially arranged and spaced apart from each other in a concentric structure based on a raw material transfer pipe positioned at a central axis of the reactor, including a heating raw material transfer pipe supplying a raw material to the burning unit, a burning unit burning the supplied raw material and supplying heat to the reforming unit, a reforming raw material phase change pipe positioned within the burning unit and heating the supplied raw material, and a reforming unit reforming the phase-changed raw material supplied from the reforming raw material phase change pipe, wherein the reforming raw material phase change pipe is provided as a coil surrounding an outer circumferential surface of a lower end of the heating raw material transfer pipe.

First claim

What is claimed is:

1. A hydrogen production reactor as a reactor producing a reformed as including hydrogen from a raw material containing a carbon compound and water, in which a burning unit and a reforming unit are sequentially arranged and spaced apart from each other in a concentric structure based on a raw material transfer pipe positioned at a central axis of the reactor, the hydrogen production reactor comprising:
a heating raw material transfer pipe supplying a raw material to the burning unit;
the burning unit burning a first supplied raw material and supplying heat to the reforming unit;
a reforming raw material phase change pipe positioned within the burning unit and heating a second supplied raw material to make a phase-changed raw material; and
the reforming unit reforming the phase-changed raw material supplied from the reforming raw material phase change pipe,
wherein the reforming raw material phase change pipe is provided as a coil surrounding an outer circumferential surface of a lower end of the heating raw material transfer pipe; and a horizontal separator provided at an upper end of the heating raw material transfer pipe and separating the heating raw material transfer pipe from the outside; and wherein a reforming raw material supply pipe, and a reforming raw material discharge pipe penetrate through the horizontal separator, such that the reforming raw material supply pipe and the reforming raw material discharge pipe are directly connected to one end and the other end of the reforming raw material phase change pipe, respectively.

2. The hydrogen production reactor of claim 1 , wherein the reforming unit has, at an end thereof, a carbon monoxide removing unit filled with a carbon monoxide removing catalyst for removing carbon monoxide from a material that was reformed from the reforming unit.

3. The hydrogen production reactor of claim 2 , wherein the carbon monoxide removing catalyst includes one or more metals selected from among gold, silver, iron, cobalt, nickel, copper, manganese, aluminum, zinc, titanium, hafnium, rhodium, ruthenium, osmium, iridium, palladium, platinum, zirconium, and lanthanide metals, or an oxide thereof.

4. The hydrogen production reactor of claim 1 , wherein a first housing, a second housing, and the heating raw material transfer pipe are sequentially positioned and spaced apart from each other from an outer side in a concentric structure, and the reforming unit provided in a space between the first housing and the second housing, the second housing has a reforming catalyst, and the burning unit provided in a space between the second housing and the heating raw material transfer pipe has a combustion catalyst.

5. The hydrogen production reactor of claim 1 , wherein a lower end of the heating raw material transfer pipe and a lower end of a second housing are spaced apart from each other to form a first compartment, and the lower end of the second housing and a lower end of the first housing are spaced apart from each other to form a second compartment.

6. The hydrogen production reactor of claim 5 , wherein a combustion catalyst and a reforming catalyst independently include one or more metals selected from among gold, silver, iron, cobalt, nickel, copper, manganese, aluminum, zinc, titanium, hafnium, rhodium, ruthenium, osmium, iridium, palladium, platinum, zirconium, and lanthanide metals, or an oxide thereof.

7. The hydrogen production reactor of claim 6 , wherein the reforming catalyst includes one or more selected from among a copper/cerium oxide/zirconium oxide complex, a copper/zinc oxide/aluminum oxide complex, a copper/cerium oxide/aluminum oxide complex, and a copper/zirconium oxide/aluminum oxide complex.

8. The hydrogen production reactor of claim 1 , further comprising: wherein the horizontal separator provided at the upper end of the heating raw material transfer pipe separates a first housing, and a second housing from the outside.

9. The hydrogen production reactor of claim 8 , wherein the horizontal separator is provided such that a heating raw material supply pipe, and a combustion product discharge pipe penetrate therethrough.

10. The hydrogen production reactor of claim 9 , wherein the heating raw material supply pipe is connected to the heating raw material transfer pipe, and the combustion product discharge pipe is connected to the burning unit.

11. The hydrogen production reactor of claim 9 , wherein the reforming raw material discharge pipe is connected to the second compartment.

12. The hydrogen production reactor of claim 9 , wherein the reforming raw material discharge pipe is connected to a pre-heating pipe and the pre-heating pipe surrounds in a coil form an outer circumferential surface of the first housing.

13. The hydrogen production reactor of claim 1 , wherein a first housing includes at least one temperature measurement sensor provided in a portion of an outer circumferential surface thereof filled with a reforming catalyst.

14. The hydrogen production reactor of claim 1 , wherein the burning unit further includes a heat conduction mesh in a space not filled with a combustion catalyst.

15. The hydrogen production reactor of claim 1 , wherein the reforming unit further includes at least one heat transfer fin.

16. The hydrogen production reactor of claim 1 , wherein the raw material is stored in a raw material tank and includes the first raw material to be heated supplied from the raw material tank to the heating raw material supply pipe and the second raw material to be reformed supplied from the raw material tank to the reforming raw material supply pipe.

17. A method for producing hydrogen using the hydrogen production reactor of claim 16 , wherein
a raw material to be heated flows by including:
a) an operation of transferring the raw material to be heated to the heating raw material transfer pipe through the heating raw material supply pipe;
b) an operation of transferring the raw material to be heated from the heating raw material transfer pipe to the burning unit through a first compartment and causing the heated raw material to react with the combustion catalyst filling the burning unit to perform catalyzed combustion; and
c) an operation of discharging a combustion product to the outside of the reactor through the combustion product discharge pipe after catalyzed combustion, and
a raw material to be reformed flows by including:
1) an operation of transferring the raw material to be reformed to the reforming raw material phase change pipe through the reforming raw material supply pipe and subsequently changing a phase of the reforming raw material to a gas phase;
2) an operation of transferring the phase-changed reforming raw material to a second compartment through the reforming raw material discharge pipe and the pre-heating pipe;
3) an operation of letting the raw material to be reformed supplied to the second compartment to pass through the reforming unit to react with the reforming catalyst filling the reforming unit;
4) an operation of letting the reformed raw material to pass through a carbon monoxide removing catalytic layer of the carbon monoxide removing unit at an end of the reforming unit to selectively remove carbon monoxide; and
5) an operation of discharging a reaction-finished product to the outside of the reactor.

18. The method of claim 17 , wherein the raw material to be heated or the raw material to be reformed includes 30 to 50 wt % of water and 50 to 70 wt % of a carbon compound.

19. The method of claim 17 , wherein, in t

Assignees

• Korea Inst Energy Res

Inventors

• Seo Dong-Joo
• Kim Woohyun
• Park Sang-Ho
• Yoon Wang-Lai

Classifications

• B01J8/0469

  the beds being superimposed one above the other · CPC title

• B01J8/0465

  the beds being concentric · CPC title

• B01J8/0496

  Heating or cooling the reactor · CPC title

• B01J2208/00309

  with two or more reactions in heat exchange with each other, such as an endothermic reaction in heat exchange with an exothermic reaction · CPC title

• B01J2208/0053

  Controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling · CPC title