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Hydrogen production method

A technology of calcium hydroxide and mayenite, applied in the production of hydrogen, chemical instruments and methods, hydrogen, etc., can solve the problem of large hydrogen volume and achieve high safety effects

Active Publication Date: 2015-03-04
高新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, hydrogen is bulky when stored. For example, in fuel cells for automobiles, the method of supplying hydrogen as fuel has become a problem.

Method used

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preparation example Construction

[0024] The method for preparing hydrogen of the present invention is characterized in that by using mayenite (Mayenite: Ca 12 al 14 o 33 ) and calcium hydroxide [Ca(OH) 2 ] into water so that they react with water to produce hydrogen.

[0025] As mentioned above, putting mayenite and calcium hydroxide into water and reacting them with water produces Katoite [Ca 3 al 2 (OH) 12 ] and hydrogen (H 2 ).

[0026] Ca 12 al 14 o 33-x +9Ca(OH) 2 +(33+x)H 2 O→7Ca 3 al 2 (OH) 12 +xH 2

[0027] In the hydrogen production method of the present invention, the temperature of the water is 50-100° C., and the molar ratio of mayenite to calcium hydroxide is preferably 1:9.

[0028] Here, when the temperature of water in the method for producing hydrogen is lower than 50° C., the hydrogen production reaction rate becomes slow and the yield deteriorates, which is not preferable. In addition, the temperature of water does not exceed 100° C. during the hydrogen generation reaction...

Embodiment 1

[0034] used figure 1 The test apparatus for hydrogen production shown is for implementing the hydrogen production method of the present invention.

[0035] First, 200 ml of ion-exchanged water was charged into a 1-liter capacity reactor (separable flask). Next, 9g of aluminum powder (trade name #150, manufactured by minalco) and 12g of calcium hydroxide [Ca(OH) 2 ] (manufactured by Wako Pure Chemical Industries, Ltd.) was put into the reactor and stirred. After the generation of hydrogen gas was completed, the ion-exchanged water was filtered, and the filtered solid content was dried in air at a temperature of 70°C.

[0036] The obtained solid component is Katoite, which is roasted in air at a temperature of 300°C for 2 hours to generate mayenite (Mayenite: Ca 12 al 14 o 33 ) and calcium hydroxide.

[0037] 200 ml of ion-exchanged water was charged into a 1-liter capacity reactor (separable flask). Next, the aforementioned mayenite (Ca 12 al 14 o 33 ) and calcium hyd...

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Abstract

One object of the present invention is to provide a method for preparing hydrogen which is able to simply produce hydrogen which is clean energy without using ammonia as used in the background art and which is very high in safety. The method for preparing hydrogen of the present invention is characterized in that hydrogen is generated by introducing mayenite (Ca 12 Al 14 O 33 ) and calcium hydroxide [Ca(OH) 2 ] into water and allowing them to react with water. Here, it is preferable that a temperature of water is from 50 to 100°C, and a molar ratio of mayenite to calcium hydroxide is 1 / 9.

Description

technical field [0001] The invention relates to a method for preparing hydrogen. Background technique [0002] In recent years, many methods of using hydrogen, a clean energy, as an energy source have been proposed. For example, people are developing cars powered by fuel cells fueled by hydrogen. The gas exhausted from a fuel cell using hydrogen as fuel does not contain nitrogen oxides, particulate matter, carbon dioxide, etc. contained in the gas exhausted from an internal combustion engine, so this fuel cell can suppress environmental pollution and global change. It has attracted much attention as a warm and clean power source. [0003] However, hydrogen is bulky when stored, and the method of supplying hydrogen as fuel becomes a problem in, for example, fuel cells for automobiles. [0004] The following Patent Document 1 discloses a method of decomposing ammonia and the like to generate hydrogen, and describes a hydrogen generating device for a fuel cell having a crack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/00C01F7/00C01F7/164
CPCC01F7/00Y02E60/324C01F11/00C01B3/06Y02E60/36C01F7/164Y02E60/32C01B3/061
Inventor 日数谷进和久井敦古寺雅晴尾白仁志井上铁也平尾一之
Owner 高新技术有限公司
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