PROTECTIVE FILM FOR HYDROGEN SEPARATION MEMBRANE IN CYLINDRICAL HYDROGEN SEPARATION TYPE REFORMER AND METHOD FOR FORMING THE SAME

摘要

PROBLEM TO BE SOLVED: To solve problems caused by fine particles coming to a hydrogen separation membrane in a hydrogen separation type reformer. SOLUTION: A porous protective film for a hydrogen separation membrane in a cylindrical hydrogen separation type reformer is a porous protective film 4 comprising a metal oxide disposed on a surface of a hydrogen separation membrane 3 so as to prevent deterioration and exfoliation of the hydrogen separation membrane caused by fine particles containing one or more of Fe, Cr, Ni and P, which come from the outside and deposit on the hydrogen separation membrane, in a hydrogen separation type reformer fabricated by disposing a hydrogen separation membrane made of a metal film or an alloy film above the outer peripheral surface of a cylindrical reforming catalyst-cum-support which simultaneously fulfills a roll as a reforming catalyst and a roll as a support for a hydrogen separation membrane by itself. A method for producing such a protective film for a hydrogen separation membrane is also provided. COPYRIGHT: (C)2011,JPO&INPIT