JP2008204662A5

JP2008204662A5 -

Info

Publication number: JP2008204662A5
Application number: JP2007036873A
Authority: JP
Filing date: 2007-02-16
Publication date: 2010-02-04

Description

本発明は、上記の目的を達成するため、炭化水素系燃料を原燃料とし、水蒸気との改質反応により水素リッチガスを製造する少なくとも改質器、ＣＯ変成器、ＣＯ選択反応器から構成される燃料改質装置と、その燃料改質装置で製造された水素リッチな改質ガスを燃料電池本体に適した温度に冷却する改質ガス冷却器とを備えた燃料電池発電システムにおいて、前記ＣＯ選択反応器と前記改質ガス冷却器とを一体化して冷却器内蔵型ＣＯ選択反応器を構成し、この冷却器内蔵型ＣＯ選択反応器は、内部に２つの室が形成されその一方の室にＣＯ選択反応触媒を充填して改質ガス入口より導入された改質ガスを通流させる触媒流路が形成され、他方の室に第１の改質ガス流路と第２の改質ガス流路が形成された容器と、前記第１の改質ガス流路と第２の改質ガス流路に配設された冷却管とを備え、前記容器内の一方の室に導入された改質ガスを前記触媒流路から前記第１の改質ガス流路及び第２の改質ガス流路の順に流し、且つ前記冷却管を流れる冷却媒体により前記燃料電池本体に適した温度に冷却して流出させる。 In order to achieve the above object, the present invention comprises at least a reformer, a CO converter, and a CO selective reactor that produce hydrocarbon-rich gas by using a hydrocarbon-based fuel as a raw fuel and reforming reaction with steam. In the fuel cell power generation system comprising the fuel reformer and the reformed gas cooler for cooling the hydrogen-rich reformed gas produced by the fuel reformer to a temperature suitable for the fuel cell body, the CO selection The reactor and the reformed gas cooler are integrated to form a cooler-incorporated CO selective reactor , and this cooler-incorporated CO selective reactor has two chambers formed in one chamber. A catalyst flow path for filling the CO selective reaction catalyst and flowing the reformed gas introduced from the reformed gas inlet is formed, and the first reformed gas flow path and the second reformed gas flow are formed in the other chamber. A container in which a passage is formed, and the first reformed gas passage A cooling pipe disposed in the second reformed gas channel, and the reformed gas introduced into one chamber in the container is transferred from the catalyst channel to the first reformed gas channel and the first reformed gas channel. The reformed gas passages are flowed in the order of the two reformed gas flow paths, and are cooled to a temperature suitable for the fuel cell main body by the cooling medium flowing through the cooling pipe.

Claims

A fuel reformer comprising at least a reformer, a CO converter, and a CO selective reactor for producing a hydrogen-rich gas by a reforming reaction with water vapor using a hydrocarbon-based fuel as a raw fuel, and the fuel reformer In a fuel cell power generation system comprising a reformed gas cooler that cools the produced hydrogen-rich reformed gas to a temperature suitable for the fuel cell body,
The CO selective reactor and the reformed gas cooler are integrated to form a CO selective reactor with a built-in cooler,
This cooler built-in CO selective reactor has two chambers formed therein, one of which is filled with a CO selective reaction catalyst, and a catalyst flow path through which the reformed gas introduced from the reformed gas inlet is passed. In which the first reformed gas channel and the second reformed gas channel are formed in the other chamber, the first reformed gas channel and the second reformed gas channel. And a cooling pipe disposed in
A cooling medium that flows the reformed gas introduced into one chamber in the container from the catalyst flow path in the order of the first reformed gas flow path and the second reformed gas flow path, and flows through the cooling pipe. The fuel cell power generation system according to claim 1, wherein the fuel cell power supply system is cooled to a temperature suitable for the fuel cell main body and flows out.