Abstract: A fuel reforming apparatus which generates a reformed gas containing hydrogen by reforming a fuel and supplies the reformed gas to a fuel cell body is provided. The fuel reforming apparatus is constructed with a burner which generates a flame by burning the fuel together with the atmospheric air, a reforming reactor which receives thermal energy of the flame and generates the reformed gas through a reforming reaction between the fuel and steam, an evaporator in which a pipeline for allowing the fuel and water to flow is disposed in the direction of the flame sprayed from the burner, with the water being evaporated by using the flame and the fuel and steam being supplied to the reforming reactor, and a spraying unit which is disposed in a direction of the sprayed flame to spray additional air into the evaporator.

Abstract: A fuel reforming apparatus includes an oxidation reaction unit in which an oxidation catalyst is formed, a reforming reaction unit in which a reforming catalyst is formed, and an ignition unit for igniting a hydrocarbon-containing fuel and an oxidant and preheating the oxidation catalyst in an early driving stage. The oxidation reaction unit has a first section and a second section respectively formed opposite to each other with the oxidation catalyst interposed therebetween and forms a stream of the fuel and the oxidant flowing to the second section through the oxidation catalyst from the first section, the ignition unit being located in the second section.

Abstract: A fuel cell system and a reformer for a fuel cell system prevents backfire and improves efficiency of heat transfer. The fuel cell system includes a reformer generating hydrogen gas from fuel including hydrogen by a catalytic chemical reaction using heat energy, and at least one electricity generating unit generating electrical energy by an electrochemical reaction between the hydrogen gas and oxygen. The reformer includes a case, a heat source, and a reforming reaction part. The case forms an external shape. The heat source is disposed in the case to generate heat energy by an oxidation reaction between fuel and a catalyst, and includes a mesh, an oxidation catalyst layer formed on a surface of the mesh, and at least one fuel injection nozzle supplying the fuel to the oxidation catalyst layer. The reforming reaction part is disposed in the case to generate hydrogen gas from fuel using the heat energy generated from the heat source.

Abstract: A reformer including a heating unit, a first combustor for receiving and oxidizing a heating unit fuel at a first end of the heating unit, and a second combustor for receiving and oxidizing an anode off gas at a second end of the heating unit, a reforming unit having a first reforming portion surrounding the heating unit, a second reforming portion surrounding the first reforming portion, and a flow path portion connecting the first reforming portion and the second reforming portion to provide fluid communication therebetween, and a heat resistant shield between the flow path portion and the second combustor. Here, the heat resistant shield protects the reforming unit from being distorted by thermal expansion caused by the heating unit. In addition, the flow path portion may be formed with a blade configured to further protect the connector from being distorted by thermal expansion.

Abstract: A fuel cell system comprises: a fuel container for storing fuel liquefied with pressure; a reformer for generating hydrogen from the fuel through a catalyst reaction based on heat energy; an electric generator for generating electricity by transforming energy of an electrochemical reaction between hydrogen and oxygen into electric energy; a condenser for condensing water produced in the electric generator; and a heat exchanger passing through the condenser for cooling the condenser by latent heat of the fuel. With this configuration, cooling water cooled by latent heat of a fuel container is employed to cool the condenser without using a separate cooler. Furthermore, air is mixed with butane fuel without using a separate power unit, so that it is possible to achieve a more compact and highly efficient fuel cell.

Abstract: There is provided a preferential oxidation reactor having excellent carbon monoxide reducing performance while providing for self-ignition of mixed hydrogen gas. The preferential oxidation reactor includes: a first reaction unit including a first internal space connected with a first opening portion and a first catalyst capable of spontaneously igniting hydrogen mixed gas at a predetermined atmospheric temperature of the first internal space; a second reaction unit including a second internal space connected to a second opening portion and a second catalyst contained in the second internal space; and a separation layer that is positioned between the first and second catalysts so as to separate the first catalyst and the second catalyst from each other and which connects the first internal space and the second internal space to each other to be in fluid communication.

Abstract: Disclosed is a reformer for a fuel cell. The reformer for a fuel cell includes a reforming reactor generating reformed gas having abundant hydrogen gas by reforming fuel and steam and a standing shape of a water gas shift reactor coupled to the reforming reactor for lowering the concentration of carbon monoxide contained in the reformed gas. The water gas shift reactor has an opening. A pipe is coupled to the opening and has a portion located below the opening. Liquid water which may stay in the inside at the time that the operation stops can be drained out of the water gas shift reactor to prevent the water gas shift catalyst from being submerged in liquid water.

Abstract: A fuel cell reforming catalyst includes a platinum-group metal; an inorganic oxide selected from CeO2, Pr6O11, and combinations thereof; a strong acid ion; and a carrier. The fuel cell reforming catalyst has high activity for the reforming reaction at low temperatures and low space velocities.

Abstract: A catalytic combustor and a fuel reformer having the same. The catalytic combustor includes a housing having a cylindrical reaction portion and a second reaction portion surrounding the first reaction portion in a double tube shape. The housing has a first opening for supplying a first fuel and an oxidant to the first reaction portion and a second opening through which an exhaust in the second reaction portion is discharged. The first and second openings are disposed at first sides of the first and second reaction portions, respectively. The first and second reaction portions are connected with each other so that the fluid is communicated with the first and second reaction portions at second sides of the first and second reaction portions. A catalyst is disposed in the first reaction portion, and a mesh layer is inserted into the second reaction portion.

Abstract: Provided is a reaction vessel for a fuel cell, and more particularly to a reaction vessel exhibiting improved thermal efficiency, and a reaction device for a steam reforming reaction for a fuel cell. The reaction device includes a cylindrical reaction catalyst chamber on which a target reaction catalyst for a predetermined target reaction is disposed; and a tubular oxidation catalyst chamber surrounding the reaction catalyst chamber, comprising an oxidation reaction catalyst therein. The reaction device according features an increased contact area between catalyst and gas, and rapidly heating of the gas in contact with the catalyst to a desired reaction temperature.

Abstract: A reformer that directly receives heat and performs an ATR catalyst reaction and an SR catalyst reaction. The reformer includes: a reforming reactor to reform hydrogen containing fuel into reformed gas having abundant hydrogen by performing an ATR catalyst reaction and an SR catalyst reaction; a heat source contacting one side of the reforming reactor and providing the reforming reactor with heat; and an air feeder to feed the reforming reactor with air by an air flow control unit. Thus, the ATR catalyst reaction featuring a relatively short preheating time is performed while the reformer is initially operated, so that hydrogen can be produced when the reformer is initially operated, thereby efficiently operating a fuel cell.

Abstract: The reformer for a fuel cell system includes a reforming reaction part that generates hydrogen gas from a fuel through a catalyst reforming reaction using heat energy, and a carbon monoxide reducing part that reduces the concentration of carbon monoxide in the hydrogen gas, through an oxidizing reaction of hydrogen gas with the oxidant. The carbon monoxide reducing part includes a first reducing part including a first carbon monoxide oxidizing catalyst and a second reducing part including a second carbon monoxide oxidizing catalyst.

Abstract: A catalytic combustor which can prevent spark ignition pollution without increasing the pressure in the catalytic combustor through structural isolation between a chamber and an igniter, and a fuel reformer having the same are disclosed. A catalytic combustor may include a housing having a cylindrical chamber, a first opening disposed at one end part of the chamber, a second opening for discharging an exhaust in the chamber, and an auxiliary channel for connecting the chamber and the second opening. A catalyst may be disposed in the chamber. When the length direction of the chamber corresponds to a gravitational direction, an igniter may be disposed apart from a virtual extension volume of the chamber extending in the gravitational direction and positioned at a lower portion of the housing.

Abstract: A fuel reforming system and a fuel cell system including the same, the fuel reforming system including: a fuel reformer adapted to produce a reformed gas having hydrogen as a main component from a fuel containing hydrogen; a carbon monoxide (CO) remover adapted to remove carbon monoxide from the reformed gas; a heat source adapted to supply heat energy to the reformer and the CO remover; and a moving unit adapted to move the heat source between the fuel reformer and the CO remover. With this configuration, the fuel reformer and the CO remover can be directly heated by a heat source. Then, when the temperature of the CO remover reaches a catalyst activation temperature, the heat source can be moved to directly heat only the fuel reformer, thereby enhancing a reforming effect and a power generation efficiency of the fuel reforming system.

Abstract: A fuel supply apparatus for a combustor configured to prevent or substantially prevent a flashback from being generated from the combustor. A fuel supply apparatus includes a fuel distribution part having a first opening part and a second opening part, the fuel distribution part configured to alternately discharge a fuel from the first opening part and the second opening part; and a housing having a first channel and a second channel, wherein an intermediate part of the first channel is coupled to and in fluid communication with the first opening part, and an intermediate part of the second channel is coupled to and in fluid communication with the second opening part.

Abstract: A device comprises a multi-layered thin film having excellent adhesion due to the method of fabricating the same. More particularly, the device includes a multi-layered thin film consisting of a tantalum nitride layer, a tantalum layer formed on the tantalum nitride layer, and a gold thin film formed on the tantalum layer.

Abstract: A fuel reformer including a reaction container including a first chamber, a first reactor in the first chamber, the first reactor, including a first catalyst, being configured to produce a first reformate by performing a steam reforming reaction on a first fuel, and having a first gas hourly space velocity (GHSV) at a set flow rate, a first heat source thermally connected to the first reactor, and a second reactor connected to the first reactor, the second reactor including a second catalyst, being configured to produce a second reformate having a lower carbon monoxide content than the first reformate, and having a second GHSV greater than the first GHSV at the set flow rate.

Abstract: A PROX reactor integrated with a heat exchanger and an operating method thereof capable of effectively controlling temperature of a preferential oxidation reactor so as to obtain optimal activation and yield. The PROX reactor integrated with a heat exchanger of the present invention includes a pipe having an inlet and an outlet, a heat exchanger cooling gas passing through the pipe, a catalyst part positioned at the rear end of the heat exchanger, upon considering the flow of gas, and shifting carbon monoxide contained in the gas into other substances; and a temperature sensor measuring the temperature of the gas coming out through the catalyst part.

Abstract: An auto ignition type autothermal reformer (ATR) performs reproducible ignition using a catalyst that performs ignition without a separate ignition unit, such as an igniter or heating wire, and a fuel cell system having the ATR. The ATR includes a reaction container having a first opening through which a fuel is introduced into the reaction container and a second opening through which a reformate is discharged from the reaction container, the fuel having a mixture of an aqueous primary fuel solution and hydrogen peroxide; a first catalyst disposed adjacent to the first opening in the reaction container, the first catalyst being a granular catalyst; a second catalyst disposed at the rear portion of the first catalyst to promote an autothermal reforming reaction; and a third catalyst disposed at the rear portion of the second catalyst to promote an oxidation reaction.

Abstract: A reformer, which may be configured to prevent flash back generated from a reaction part in a catalytic oxidation reaction is disclosed. The reformer may include a first reaction part having a first chamber and a first catalyst disposed inside the first chamber, the first reaction part configured to generate heat by burning a first fuel. The reformer may include a second reaction part having a second catalyst, the second reaction part configured to be heated by the first reaction part and the second reaction part further configured to reform a second fuel. The reformer may include a flash back prevention part disposed on an upstream side of a flow of the first fuel and air, the flash back prevention part configured to introduce the first fuel and the air across a predetermined interval from the first catalyst.