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:
Jul. 24, 2012
Filed:
Mar. 26, 2008
Tatsuo Sumino, Tokyo, JP;
Naoki Abe, Tokyo, JP;
Hajime Ikuta, Tokyo, JP;
Naomichi Mori, Tokyo, JP;
Yutaka Mitani, Tokyo, JP;
Yasuhiro Oki, Tokyo, JP;
Tatsuo Sumino, Tokyo, JP;
Naoki Abe, Tokyo, JP;
Hajime Ikuta, Tokyo, JP;
Naomichi Mori, Tokyo, JP;
Yutaka Mitani, Tokyo, JP;
Yasuhiro Oki, Tokyo, JP;
Hitachi Plant Technologies, Ltd., Tokyo, JP;
Sapporo Breweries, Ltd., Tokyo, JP;
Abstract
The hydrogen-producing method of the an aspect of the present invention is a method for producing hydrogen in which hydrogen is produced from an organic matter using a microorganism, characterized by using pellets on which hydrogen-producing acid-resistant bacteria are entrapped and immobilized, producing hydrogen by bringing the pellets into contact and react with the organic matter in an environment of a pH of 4 to 6. The inventors of the present invention have obtained a finding that a hydrogen-producing bacteria are entrapped and immobilized, so that the optimum pH of the hydrogen-producing bacterium shifts to low range. The present invention is made based on the above finding and uses pellets on which the hydrogen-producing bacteria are entrapped and immobilized, so that the hydrogen-producing bacterium is activated at a low pH range of 4 to 6 to produce hydrogen. Therefore, the effects of contaminated bacteria that consume hydrogen are less, and the yield of hydrogen can be improved.