Carbon monoxide reduction device, carbon monoxide reduction method, hydrogen production device, and fuel cell power generation system

摘要

PPROBLEM TO BE SOLVED: To solve such a problem that, concerning CO reduction by CO selective oxidation of a reformed gas obtained by subjecting an oxygen-containing hydrocarbon to reformation reaction, an unreacted and undecomposed material and a by-product in the reformed gas badly influence on a CO-selective oxidation reaction. PSOLUTION: A raw material supplied from a raw material supply section 1 is reformed by a reformer 3 to give a reformed gas; the concentrations of an unreacted and undecomposed raw material and of a by-product are detected by an impurity concentration detector 4; and when the impurity concentration is higher than a preset value, the reformed gas is introduced into an impurity decreasing receptacle 5 to decrease the impurity concentration in the reformed gas and then is introduced into a CO selective oxidation reactor 7. PCOPYRIGHT: (C)2008,JPO&INPIT