# US 2006/0154122 A1 · Carbon monoxide remover and fuel cell system with the same

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- Number: US 2006/0154122 A1
- Document ID: US20060154122A1
- Status: Published application
- Kind: A1
- Application number: 11/325,967
- Filed: 2006-01-04
- Published: 2006-07-13
- Earliest claimed: 2005-01-10
- Assignees: Samsung SDI Co., Ltd.
- Inventors: In-Hyuk Son; Dong-Myung Suh; Dong-Uk Lee
- Web page: https://patentgrep.com/patent/US20060154122A1

## CPC

- C01B 3/583: {the reaction being the selective oxidation of carbon monoxide}
- H01M 8/0668: Removal of carbon monoxide or carbon dioxide
- C01B 2203/044: Selective oxidation of carbon monoxide
- C01B 2203/047: the impurity being carbon monoxide
- H01M 8/0618: {Reforming processes, e.g. autothermal, partial oxidation or steam reforming}
- Y02E 60/50: Fuel cells
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A carbon monoxide remover includes a reactor body having an inner space, and a catalyst provided in the inner space of the reactor body to react with the reforming gas. A diffusion unit is installed at an inlet portion of the reactor body for introducing the reforming gas to diffuse the reforming gas over the entire area of the catalyst.

## Claims

### Claim 1

A carbon monoxide remover comprising:
a reactor body having an inner space;
a catalyst in the inner space of the reactor body to react with a reforming gas; and
a diffusion unit installed at an inlet portion of the reactor body adpted to introduce and diffuse the reforming gas over the catalyst.

### Claim 2 (depends on 1)

The carbon monoxide remover of claim 1 wherein the reactor body is tubular in shape having two opposite open ended portions.

### Claim 3 (depends on 1)

The carbon monoxide remover of claim 1 wherein the catalyst comprises a plurality of pellet shaped structures.

### Claim 4 (depends on 1)

The carbon monoxide remover of claim 1 wherein the catalyst comprises a honeycomb structure.

### Claim 5 (depends on 1)

The carbon monoxide remover of claim 1 wherein the diffusion unit comprises a diffuser having a body with a gradually increasing inner diameter with a plurality of nozzle pores.

### Claim 6 (depends on 5)

The carbon monoxide remover of claim 5 wherein the nozzle pores are gradually enlarged in size as the nozzle pores proceed along the body from the smaller inner diameter portion to the larger inner diameter portion of the diffuser body.

### Claim 7 (depends on 5)

The carbon monoxide remover of claim 5 wherein the diffuser body is cone shaped.

### Claim 8 (depends on 1)

The carbon monoxide remover of claim 1 wherein oxygen is fed to the reactor body and the catalyst is an oxidation catalyst for preferentially oxidizing the reforming gas.

### Claim 9

A fuel cell system comprising:
an electricity generator for generating an electrical energy through the electrochemical reaction of hydrogen and oxygen;
a reformer for generating hydrogen from a fuel through the reaction of a reforming catalyst based on a thermal energy;
a carbon monoxide remover for reducing the concentration of carbon monoxide in a hydrogen-containing reforming gas generated from the reformer, comprising a reactor body with an inner space, a catalyst in the inner space of the reactor body to react with the reforming gas, and a diffusion unit at an inlet portion of the reactor body adapted to introduce and diffuse the reforming gas over the catalyst;
a fuel supply for supplying the fuel to the reformer; and
an air supply for supplying air to the electricity generator.

### Claim 10 (depends on 9)

The fuel cell system of claim 9 wherein the reactor body is tubular in shape having two opposite open ended portions.

### Claim 11 (depends on 9)

The fuel cell system of claim 9 wherein the catalyst comprises a plurality of pellet shaped structures.

### Claim 12 (depends on 9)

The fuel cell system of claim 9 wherein the catalyst comprises a honeycomb shaped structure.

### Claim 13 (depends on 9)

The fuel cell system of claim 9 wherein the diffusion unit comprises a diffuser having a body with a gradually increasing inner diameter with a plurality of nozzle pores.

### Claim 14 (depends on 13)

The fuel cell system of claim 13 wherein the nozzle pores are gradually enlarged in size as the nozzle pores proceed along the body from the smaller inner diameter portion to the larger inner diameter portion of the diffuser body.

### Claim 15 (depends on 13)

The fuel cell system of claim 13 wherein the diffuser body is cone shaped.

### Claim 16 (depends on 9)

The fuel cell system of claim 9 wherein oxygen is fed to the reactor body and the catalyst is an oxidation catalyst for preferentially oxidizing the reforming gas.

### Claim 17 (depends on 9)

The fuel cell system of claim 9 wherein the air supply is linked to the carbon monoxide remover to supply the air into the carbon monoxide remover.