A liquid metal assisted aluminum block direct hydrogen production device and its application

A liquid metal, hydrogen production device technology, applied in the direction of hydrogen production and other directions, can solve the problems of continuous hydrogen production and other problems, and achieve the effects of continuous and rapid hydrogen production, efficient production, and controllable hydrogen production.

Active Publication Date: 2018-11-02
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this liquid-phase alloy method is not yet able to promote the direct reaction of solid aluminum and aqueous solution for continuous hydrogen production.

Method used

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  • A liquid metal assisted aluminum block direct hydrogen production device and its application

Examples

Experimental program
Comparison scheme
Effect test

experiment example

[0036] Experimental example: the experiment of liquid metal assisted aluminum plate reacting with aqueous solution to generate hydrogen

[0037] The liquid metal is gallium-indium alloy (90% gallium, 10 indium), and the aluminum plate is 6061 aluminum plate. Use a spray gun to spray a layer of liquid metal on the surface of the aluminum plate, and recover the liquid metal with alcohol after a few seconds. Drop the aqueous solution (5% NaCl aqueous solution in the experiment) onto the corroded area of ​​the aluminum plate, and it can be seen that a large number of small bubbles are generated, that is, H 2 , and the amount of hydrogen generated is significant, and the process is very stable. The amount of hydrogen produced can be regulated by corroding the surface area of ​​the aluminum plate with the liquid metal. Since gallium indium alloy has a corrosive effect on aluminum, it can avoid the formation of a protective film on the surface of aluminum, thereby ensuring the conti...

Embodiment 1

[0040] A liquid metal assisted direct hydrogen production device of aluminum blocks, comprising an aluminum plate 1, a liquid metal tank 2, an aqueous solution tank 4, a hydrogen gas collection tank 15, a waste liquid recovery tank 6, a rotary nozzle 7, and a lifting platform 9. The rotary nozzle 7 is connected to the aqueous solution tank 4 through the aqueous solution pipeline 12, and the liquid metal tank 2 through the liquid metal pipeline 11. An aluminum plate 1 is arranged below the rotary nozzle, and the aluminum plate 1 is placed on a lifting platform, which is located in the waste liquid recovery pool. The hydrogen collection tank 15 is connected to the waste liquid recovery tank 6 through a hydrogen collection pipeline 16 . The top of the waste liquid recovery pool 6 is provided with a waste liquid recovery pool airtight door 14. When the lifting platform 9 rises, the door is opened, and after the lifting platform 9 descends, the door is closed, so that the waste liqu...

Embodiment 2

[0050] The structure of the liquid metal assisted aluminum block direct hydrogen production device is the same as in Example 1, and the method for preparing hydrogen is as follows:

[0051] 1) Fill liquid metal 2 in the liquid metal tank 3, the liquid metal is a gallium indium tin alloy (68.5% gallium, 21.5% indium and 10% tin), and the aqueous solution tank 4 is NaCl with a mass concentration of 5% Aqueous solution 41;

[0052] 2) The pipeline connecting the rotating nozzle and the liquid metal tank is opened, the nozzle diameter of the spray gun is 0.5mm, and the pressure of the high-pressure gas tank is 0.3MPa. Place an aluminum block with a length, width, and height of 80mm×20mm×20mm on the lifting table, and the rotating nozzle sprays liquid metal on the aluminum plate, and stops spraying the liquid metal after 5 seconds, and the pipeline connecting the rotating nozzle and the aqueous solution tank 4 is opened, and spraying and flushing The liquid metal is washed away by...

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Abstract

The invention relates to a liquid metal assisted aluminum block direct hydrogen production device. The liquid metal assisted aluminum block direct hydrogen production device comprises an aluminum block, a liquid metal tank, a flushing agent tank, a hydrogen collecting tank, a waste liquid recycling pond, a rotary sprayer and a lifting table. The rotary sprayer is connected with the liquid metal tank and the flushing agent tank through pipelines, the aluminum block is arranged below the rotary sprayer and placed on the lifting table, and the lifting table is located in the waste liquid recycling pond. According to the liquid metal assisted aluminum block direct hydrogen production device, direct, continuous and rapid hydrogen production of solid aluminum in any shape at room temperature is achieved for the first time, it is not needed to prepare aluminum and liquid metal into solid phase alloy or liquid phase alloy in advance in the continuous hydrogen production process, and potential risks of explosions generated by storage damp-affected hydrogen production when the alloy is prepared in advance in former methods are avoided.

Description

technical field [0001] The invention belongs to the field of hydrogen production, and in particular relates to a hydrogen production device using aluminum blocks and its application. Background technique [0002] As a clean energy, hydrogen is an energy source with extremely high power generation efficiency and has great development prospects. The use of artificial methods to produce hydrogen has long been highly valued by the global academic and industrial circles. The classic method of obtaining hydrogen is generally to decompose aqueous solution by means of light and electricity, but its high cost, high energy consumption, slow speed and poor controllability have always become a huge technical bottleneck for the popularization and application of hydrogen energy. Undoubtedly, the earth is rich in seawater and has huge reserves. If hydrogen can be produced directly from aqueous solution at low cost, the current energy crisis will be greatly alleviated. So far, obtaining h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/08
CPCY02E60/36
Inventor 刘静路金蓉
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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