Gas: heating and illuminating – Generators
Patent
1996-11-15
1998-11-10
Marschel, Ardin H.
Gas: heating and illuminating
Generators
4236481, 502300, B01J 700, B01J 2300, C01B 302
Patent
active
058337237
DESCRIPTION:
BRIEF SUMMARY
SPECIFICATION
1. Technical Field
This invention relates to a hydrogen generating apparatus.
2. Background Art
An apparatus using a steam reforming method and partially oxidative reforming method is well known as shown in the prior art.
Hydrogen is obtained by a reacting method with water in a reaction tube under heating as shown, in a steam reforming method;
A merit of the steam reforming method is to obtain high hydrogen concentrations in the reforming gases, but as a shortcoming, the following problems are present: for water and heating means are needed, making a structure for such means complex, problem that a loading property of the apparatus (the apparatus becomes large), starting property (a long time period is needed to obtain the sufficient amounts of hydrogen after starting) and a response (when the amount of hydrogen is increased at a time, a long time is needed to obtain the amounts of hydrogen needed) are bad.
The partially oxidative reforming method is proposed by the problems mentioned above, the apparatus using the method is shown in Japanese Patent Laid-open Publication Sho 63-147802, in which hydrogen is produced by flowing a mixture of methanol and oxygen (air) into a housing equipped with a catalyst and said reaction is as follows:
The merits of the partially oxidative reforming method mentioned above are: simple, exothermic reaction.
Accordingly, a loading property of the apparatus (that is, small sized), starting property and response become good. In the hydrogen generating apparatus using the partially oxidative reforming method shown in the Japanese Patent Laid-open Publication Sho 63-147802 mentioned above, it is possible to make a time period short from starting for generating hydrogen compared to the apparatus of the steam reforming method. However, in a normal temperature condition after starting, immediately the sufficient amount of hydrogen generated can not be obtained by that the reaction of methanol with oxygen does not fully occur because of a low capacity of catalytic activity. Then, it is necessary to achieve the operating temperature (300.degree. C.-400.degree. C.) of the catalytic activity for obtaining the sufficient amounts of hydrogen generated.
DISCLOSURE OF INVENTION
An object of this invention is to provide a hydrogen generating apparatus capable of lowering the time period to obtain sufficient amounts of hydrogens for starting the apparatus. To achieve the above mentioned object, the technical means of this invention shown in claim 1 comprises a housing in which the catalyst is filled within the inner space, a supplying type opening to an inner space, a blowing tube by which the reformed gases generated from reaction in the inner space are removed from the inner space, the supplying means of methanol connected to the supplying tube, the supplying means of oxygen connected to the supplying tube, and the heating means provided near an opening portion of the supplying tube in the hydrogen generating apparatus.
The technical means of this invention shown in claim 2 comprises the housing in which the catalyst is filled within the inner space, the supplying tube opening to the inner space, the blowing tube by which the reformed gases generated from reaction in the inner space are removed from the inner space, the methanol and oxygen supplying means connected to the supplying tube in the hydrogen generating apparatus. Also the reformed gas storage means, by which the supplying tube and the blowing tube are connected on a connecting tube and the exchanging means for cutting off and passing through the connecting tube providing on the connecting tube of the supplying tube side in the reformed gas storage means and the blowing tube side are provided on the hydrogen generating apparatus.
To burn oxygen and hydrogen present in the reformed gas effectively near the opening part of the supplying tube, the technical means shown in the invention of claim 3 are to mix a combustion catalyst with the catalyst present near the opening part of the supplying tube.
The technical me
REFERENCES:
patent: 4789540 (1988-12-01), Jenkins
patent: 4946667 (1990-08-01), Beshty et al.
patent: 5110559 (1992-05-01), Kondo et al.
Hayashi Takumi
Kuwabara Yasuo
Matsuoka Akira
Ota Hiroshige
Watanabe Nobuhisa
Aisin Seiki Kabushiki Kaisha
Marschel Ardin H.
Riley Jezia
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