Method of producing hydrogen energy through physical ball milling of metal powder

A metal powder and hydrogen energy technology, applied in the field of hydrogen production, can solve the problems of high equipment requirements, high alloy material preparation cost and high preparation cost, and achieve the effects of high equipment requirements, low preparation cost and simple operation.

Inactive Publication Date: 2018-11-06
CHENDU NEW KELI CHEM SCI CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0009] In the hydrogen production of metal-based materials, which are widely used at present, hydroxides and oxide films have been formed on the surface, which inhibits the reaction efficiency of hydrogen production by hydrolysis. However, the traditional method of destroying the surface film is expensive to prepare and requires high equipment requirements. At the same time The preparation cost of the alloy material itself is high. The present invention proposes a method of physically ball milling metal powder to produce hydrogen energy, thereby effectively improving the efficiency of hydrogen production, and the process is simple, the preparation cost is low, and the purity of hydrogen is high.

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  • Method of producing hydrogen energy through physical ball milling of metal powder

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Embodiment 1

[0029] Put the metal powder in a vacuum ball mill, add a small amount of metal chloride aqueous solution and additives, and carry out wet ball milling under the protection of hydrogen. The oxide layer or the hydroxide formed by the reaction is peeled off by the metal powder under the action of ball milling, exposing more Multiple active sites, thereby increasing the yield and reaction rate of hydrogen production.

[0030] The metal powder is aluminum powder. The metal chloride is aluminum chloride. The mass concentration of the metal chloride aqueous solution is 30%. The additive is copper. The vacuum degree of the vacuum ball mill is 0.001Pa. The balls of the vacuum ball mill are zirconium balls, and the ball-to-material ratio is 2:1. The rotating speed of ball milling is 250r / min, and the ball milling time is 90min. In the wet ball milling system, there are 72 parts by weight of metal powder, 20 parts by weight of metal chloride aqueous solution, and 8 parts by weight o...

Embodiment 2

[0032] Put the metal powder in a vacuum ball mill, add a small amount of metal chloride aqueous solution and additives, and carry out wet ball milling under the protection of hydrogen. The oxide layer or the hydroxide formed by the reaction is peeled off by the metal powder under the action of ball milling, exposing more Multiple active sites, thereby increasing the yield and reaction rate of hydrogen production.

[0033] The metal powder is aluminum powder. The metal chloride is magnesium chloride. The mass concentration of the metal chloride aqueous solution is 40%. The additive is strontium carbonate. The vacuum degree of the vacuum ball mill is 0.1Pa. The balls of the vacuum ball mill are zirconium balls, and the ball-to-material ratio is 2:1. The rotating speed of ball milling is 250r / min, and the ball milling time is 60min. In the wet ball milling system, 82 parts by weight of metal powder, 15 parts by weight of metal chloride aqueous solution, and 3 parts by weight...

Embodiment 3

[0035] Put the metal powder in a vacuum ball mill, add a small amount of metal chloride aqueous solution and additives, and carry out wet ball milling under the protection of hydrogen. The oxide layer or the hydroxide formed by the reaction is peeled off by the metal powder under the action of ball milling, exposing more Multiple active sites, thereby increasing the yield and reaction rate of hydrogen production.

[0036]The metal powder is aluminum powder. The metal chloride is magnesium chloride. The mass concentration of the metal chloride aqueous solution is 32%. The additive is calcium sulfate. The vacuum degree of the vacuum ball mill is 0.01Pa. The balls of the vacuum ball mill are zirconium balls, and the ball-to-material ratio is 2:1. The rotating speed of the ball mill was 280r / min, and the ball milling time was 80min. In the wet ball milling system, 77 parts by weight of metal powder, 15 parts by weight of metal chloride aqueous solution, and 8 parts by weight ...

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Abstract

The invention provides a method of producing hydrogen energy through physical ball milling of metal powder. The method comprises: putting metal powder into a vacuum ball mill, adding a small amount ofa metal chloride aqueous solution and an aid into the powder and carrying out wet ball milling in a hydrogen protective atmosphere so that the oxide layers or hydroxide formed by the reaction is peeled from the metal powder under the action of ball milling. Through use of the aid in the metal powder-based hydrogen production and physical ball milling, the oxide/hydroxide film formed in the hydrolysis hydrogen production reaction is peeled from the metal powder so that the hydrogen production yield and the reaction rate are effectively ensured. The whole process is simple, the reaction processis neutral, the equipment requirements are low and the production cost is low.

Description

technical field [0001] The invention relates to the field of hydrogen production, in particular to a method for physically ball milling metal powder to produce hydrogen energy. Background technique [0002] Hydrogen energy, as a green and sustainable energy source, is receiving widespread attention from the country. Hydrogen energy is also one of the important aspects of ecological civilization construction. Large-scale and low-cost production of hydrogen is one of the important links in the development and utilization of hydrogen energy. Hydrogen is a renewable secondary energy source with high calorific value and fast reaction speed, which can be obtained through various reaction pathways. The by-product of hydrogen after releasing energy is water, which is friendly to the environment. Although hydrogen energy has not been widely used at present, the research and development of hydrogen energy is of great significance due to the declining fossil energy and the increasingl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/08
CPCC01B3/08Y02E60/36
Inventor 陈庆廖健淞
Owner CHENDU NEW KELI CHEM SCI CO LTD
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