Patent ID: 9132384
Filing Date: 2015-09-15
Classification: B01D,H01M,Y02E

Abstract:
1. A gas decomposition component comprising a cylindrical membrane electrode assembly MEA including a cylindrical solid electrolyte layer, a first electrode layer formed on an inner circumferential portion of the solid electrolyte layer in a layered structure, and a second electrode layer formed on an outer circumferential portion of the solid electrolyte layer in a layered structure; a first gas channel through which a first gas that is decomposed flows, the first gas channel being disposed inside the cylindrical MEA; and a second gas channel through which a second gas flows, the second gas channel being disposed outside the cylindrical MEA, wherein the gas decomposition component further comprises a heater for heating an entirety of the component; and a preheating pipe through which the first gas to be introduced into the first gas channel passes beforehand to be preheated, and wherein a sealed portion for sealing an end portion of the cylindrical MEA is provided, a gas guide pipe is inserted through another end portion of the cylindrical MEA into an inner space of the cylindrical MEA to form a cylindrical channel between the gas guide pipe and an inner circumferential surface of the cylindrical MEA, and in the first gas channel, the first gas flowing through the gas guide pipe toward the sealed portion is made to flow out of the gas guide pipe in a region near the sealed portion so that a flow direction of the first gas is reversed and the first gas flows through the cylindrical channel in a direction opposite to the flow direction in the guide pipe.