The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Sep. 14, 2010
Hideto Kurokawa, Tokyo, JP;
Takumi Nishii, Tokyo, JP;
Yoshinori Shirasaki, Tokyo, JP;
Isamu Yasuda, Tokyo, JP;
Masahiko Morinaga, Nagoya, JP;
Hiroshi Yukawa, Nagoya, JP;
Tomonori Nanbu, Suzuka, JP;
Yoshihisa Matsumoto, Oita, JP;
Hideto Kurokawa, Tokyo, JP;
Takumi Nishii, Tokyo, JP;
Yoshinori Shirasaki, Tokyo, JP;
Isamu Yasuda, Tokyo, JP;
Masahiko Morinaga, Nagoya, JP;
Hiroshi Yukawa, Nagoya, JP;
Tomonori Nanbu, Suzuka, JP;
Yoshihisa Matsumoto, Oita, JP;
Tokyo Gas Co., Ltd., Tokyo, JP;
National University Corporation Nagoya University, Nagoya-shi, JP;
Institute of National Colleges of Technology, Japan, Hachioji-shi, JP;
Abstract
Provided is a novel hydrogen separation membrane formed of a Nb—W—Mo-based alloy. A method for separating hydrogen using the hydrogen separation membrane and hydrogen separation conditions are selected by a particular procedure. A hydrogen separation membrane formed of the Nb—W—Mo-based alloy membrane. A method for separating hydrogen using the Nb—W—Mo-based alloy membrane and the conditions for separating hydrogen using the Nb—W—Mo-based alloy membrane are set by measuring the hydrogen pressure P of a hydrogen atmosphere for the Nb—W—Mo-based alloy membrane and the dissolved hydrogen content C of the Nb—W—Mo-based alloy membrane at a temperature T; generating a PCT curve associating the temperature T, the hydrogen pressure P, and the dissolved hydrogen content C on the basis of actual measurement data about the three requirements; and setting operating temperature and primary and secondary hydrogen pressure conditions by determining the relationship between the dissolved hydrogen content C and the brittle fracture of the Nb—W—Mo-based alloy membrane on the basis of the PCT curve to evaluate critical dissolved hydrogen content related to hydrogen embrittlement resistance.