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:
Feb. 09, 2016
Filed:
Jan. 11, 2013
Hitachi Zosen Corporation, Osaka-shi, JP;
Kyoto University, Kyoto-shi, JP;
Susumu Hikazudani, Osaka, JP;
Atsushi Wakui, Osaka, JP;
Masaharu Furutera, Osaka, JP;
Hitoshi Oshiro, Osaka, JP;
Tetsuya Inoue, Osaka, JP;
Kazuyuki Hirao, Kyoto, JP;
Hitachi Zosen Corporation, Osaka-shi, JP;
Kyoto University, Kyoto-shi, JP;
Abstract
The present invention provides a continuous production method of hydrogen which is able to produce hydrogen, which is clean energy, simply and continuously without using ammonia. The invention of the continuous production method of hydrogen includes a hydrogen production step comprising introducing mayenite (CaAlO) and calcium hydroxide [Ca(OH)] into water and allowing them to react with water, thereby generating hydrogen and also forming katoite [CaAl(OH)]; a regeneration step comprising baking the formed katoite to regenerate mayenite and calcium hydroxide; and a circulation step comprising returning the regenerated mayenite and calcium hydroxide into the hydrogen production step. It is preferable that a temperature of water in the hydrogen production step is from 50 to 100° C., and a molar ratio of mayenite to calcium hydroxide is 1/9. In addition, it is preferable that a baking temperature of katoite in the regeneration step is from 300 to 500° C.