Patent ID: 7803328

Claim:
A microreactor for obtaining hydrogen gas by reforming a feed material, comprising: a metal substrate having a microchannel portion on one surface thereof, an insulating film formed on an other surface of the metal substrate where the microchannel portion is not formed, a heater provided on the insulating film on the other surface of said metal substrate such that a front surface of the heater contacts the insulating film and a back surface of the heater includes a heater protective layer that covers said heater while exposing only electrodes extending from the back surface of the heater, the electrodes being configured to energize the heater, a catalyst supported on said microchannel portion, and a cover member having a feed material inlet and a gas outlet and joined to said metal substrate so as to cover said microchannel portion to form a single continuous flow path, wherein the feed material inlet and the gas outlet are substantially perpendicular to axial directions of the single continuous flow path.