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Method for preparing hydrogen by cracking water by using aluminum-based material

An aluminum-based material, hydrogen technology

Inactive Publication Date: 2011-01-19
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since gallium is an inert metal, it does not participate in hydrogen production when it reacts with water, so the hydrogen production of the alloy depends entirely on the aluminum content in the alloy, so the hydrogen production rate per unit mass of the alloy is also low
In addition, the content of metal gallium on the earth is also very small, so the price is very expensive, as high as 4000 yuan / kg, which is much more expensive than aluminum
This limits the application of this alloy to a certain extent in the actual production of hydrogen.

Method used

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  • Method for preparing hydrogen by cracking water by using aluminum-based material

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Effect test

Embodiment 1

[0025] 0.5g containing Na 2 O 5wt%, the aluminum base material containing NaCl 20wt% is placed in the reactor, injects 20ml again, the pure water of 30 ℃, reacts and carries out 60 minutes; Produce the quality of hydrogen discharge water by automatic weighing record balance measurement, convert into hydrogen Volume, by calculation the hydrogen yield is 98%.

Embodiment 2

[0027] 0.5g containing K 2 O 15wt%, the aluminum-based material containing KCl 15wt% is placed in the reactor, injects 20ml again, the NaCl solution of 30 ℃, and reacts for 60 minutes; Measure the mass of hydrogen discharge water by automatic weighing record balance, convert into hydrogen Volume, by calculating the hydrogen yield is 98.7%.

Embodiment 3

[0029] 0.5g containing CaO 30wt%, containing Na 2 SO 47wt% of the aluminum-based material was placed in the reactor, and then 20ml of pure water at 50°C was injected, and the reaction was carried out for 60 minutes; the mass of hydrogen generated and discharged water was measured by an automatic weighing record balance, converted into hydrogen volume, and calculated by calculating the hydrogen production The rate is 100%.

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Abstract

The invention provides a method for preparing hydrogen by cracking water by using an aluminum-based material. The aluminum-based material is prepared from aluminum and oxide or carbonate with different mass percents serving as raw materials and an added salt serving as activating agent; and hydrogen is quickly produced by reacting the aluminum-based material with reaction medium. The hydrogen preparation rate and yield can be adjusted by varying the percent of each component in the aluminum-based material. The aluminum-based material can suppress production of an inertial aluminum oxide film on the surface, greatly improve the hydrogen production rate of alloy and reduce the hydrogen preparation cost.

Description

technical field [0001] The invention relates to a method for producing hydrogen by cracking water with an aluminum-based material, and belongs to the field of hydrogen energy preparation. Background technique [0002] Hydrogen energy is a very good energy carrier, it does not emit any substances that pollute the environment, and it is a true green energy. However, the difficulty in the preparation and safe storage and transportation of hydrogen has become a bottleneck restricting the economic development of hydrogen energy. The real safe use of hydrogen energy should be real-time preparation and use, reducing intermediate storage and transportation. If the previous storage and transportation of high-energy compressed hydrogen is transformed into the transportation of hydrogen production reactants, its safety performance will be greatly improved. [0003] In response to the above problems, many scholars have developed various hydrogen production technologies. Among them, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/08
CPCY02E60/36
Inventor 赵中伟陈星宇郝明明
Owner CENT SOUTH UNIV
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