Method for aluminum-lithium alloy water-splitting hydrogen production

A technology of aluminum-lithium alloy and hydrogen, which is applied in the field of hydrogen energy preparation and can solve the problems such as the decrease of the amount of hydrogen produced by the alloy

Inactive Publication Date: 2009-08-19
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process uses expensive metal gallium, and gallium only plays a catalytic role in the hydrogen production by cracking water from aluminum, and cannot crack water by itself, resulting in a decrease in the hydrogen production capacity of the effective quality alloy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] First configure 33.2g of aluminum-lithium alloy containing 80wt% aluminum and 20wt% lithium. Before the reaction, the alloy is broken into particles with a particle size of about 1cm in diameter; the alloy particles are placed in the reactor and injected into a 25°C Deionized water; the reaction was carried out for 5 minutes to produce 43.8L of hydrogen gas.

Embodiment 2

[0018] First configure 33.2g of aluminum-lithium alloy containing 80wt% aluminum and 20wt% lithium. Before the reaction, the alloy is crushed into particles with a particle size of about 2.5mm in diameter; the alloy particles are placed in the reactor and injected through the separatory funnel deionized water; the reaction was carried out for 10 minutes to produce 43.6L of hydrogen gas.

Embodiment 3

[0020] First configure 35.0g of aluminum-lithium alloy containing 90wt% aluminum and 10wt% lithium. Before the reaction, the alloy is broken into particles with a particle size diameter of about 5mm; Deionized water; the reaction was carried out for 15 minutes to produce 44.7L of hydrogen gas.

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PUM

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Abstract

The invention provides a method for preparing hydrogen from aluminum lithium alloy cracking water. The method is to take aluminum lithium alloy as a raw material for hydrogen preparation, make the aluminum lithium alloy react with pure water or water in an aqueous solution, and quickly generate the hydrogen. The aluminum lithium alloy comprises 0.5 to 40 weight percent of metallic lithium in percentage by mass, and the granularity of the alloy is unlimited; and the lithium in the alloy greatly improves the reaction activity of aluminum and the water. The application scope of hydrogen preparation by the alloy is wide; the hydrogen can be generated in the water or the aqueous solution at various temperatures; and the hydrogen yield is high by utilization of the alloy for hydrogen preparation.

Description

technical field [0001] The invention relates to a method for preparing hydrogen by splitting water with an aluminum-lithium alloy, and belongs to the field of hydrogen energy preparation. Background technique [0002] Hydrogen combustion has no harmful products and is an environmentally friendly energy source. With people's concern about the ecological environment, the development and utilization of hydrogen as a fuel has received great attention. At the same time, the increase in electricity demand around the world, the strict control of greenhouse gas emissions and the decline in crude oil storage have also prompted people to consider the transition from the current crude oil economy to the hydrogen energy economy. The hydrogen economy is also a long-term environmentally friendly option for sustainable development. This trend has become more and more obvious in the past ten years, and the emphasis on clean energy will directly promote the large-scale application of hydro...

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
Owner CENT SOUTH UNIV
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