| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method capable of accurately predicting a hydrogen permeation rate of a hydrogen permeable film, a hydrogen manufacturing device employing the same, and a method of operating the same. <P>SOLUTION: In this method of estimating a hydrogen permeation rate of a hydrogen separation film in a hydrogen separation process of supplying a material gas to a primary chamber and extracting hydrogen having permeated the hydrogen separation film from a secondary chamber, a relationship between a chemical potential differenceΔμof hydrogen between the primary chamber and the secondary chamber obtained from hydrogen partial pressure P<SB POS="POST">1</SB>in the primary chamber, hydrogen partial pressure P<SB POS="POST">2</SB>in the secondary chamber, and temperatures T thereof, and a hydrogen permeation rate J is previously obtained, and the hydrogen permeation rate when the hydrogen partial pressure in the primary chamber and that in the secondary chamber are assumed to be P'<SB POS="POST">1</SB>and P'<SB POS="POST">2</SB>, respectively is obtained from the relationship. Gas pressure values and temperatures of the primary chamber and the secondary chamber are controlled so that a product J*A with a value J estimated by the method is set at a target hydrogen extraction amount. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
