Preparation device and method for ternary aluminum-lithium alloy for hydrogen production
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A technology of aluminum-lithium alloy and preparation equipment, which is applied in the field of hydrogen production, can solve the problems of less introduction of aluminum alloy preparation equipment and methods, and achieve the effects of improved hydrolysis kinetics, high activity of the alloy, and convenient operation
Inactive Publication Date: 2015-09-09
CHINA JILIANG UNIV
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[0003] At present, a large number of literatures and patents focus on the composition design of aluminum alloys, while there are few introductions to the preparation devices and methods of aluminum alloys
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Embodiment 1
[0027] A ternary aluminum-lithium alloy preparation device for hydrogen production, comprising a housing, 2 alloy preparation containers 1 and 2 of equal volume, and a mold; there are 2 feeding ports on the top of the housing, each feeding port Connected with the alloy preparation container, the top of the shell is equipped with a stainless steel tube; the stainless steel tube is connected to the vacuum pump and the argon gas bottle through a tee and a stainless steel valve; there is an argon gas outlet and a control valve at the bottom of the shell; the bottom of the alloy preparation container is connected to an electric heating wire, a thermocouple and Temperature controller; the alloy preparation container is covered with a heat-resistant insulation layer; the top of the alloy preparation container has a feeding port and a feeding pipe; the bottom of the alloy preparation container is connected to a high temperature resistant pipe and a control valve; between alloy preparati...
Embodiment 2
[0030] The preparation method of the ternary aluminum-lithium alloy is set, and the composition design is as follows:
[0031] System component 1: the content of aluminum is 90wt%, the content of lithium is 5, and the content of iron is 5wt%.
[0032] System component 2: the content of aluminum is 75wt%, the content of lithium is 15wt%, and the content of iron is 10wt%.
[0033] System component 3: the aluminum content is 85wt%, the lithium content is 9, and the iron content is 6wt%.
[0034] System component 4: the aluminum content is 83wt%, the lithium content is 11, and the nickel content is 6wt%.
[0035] System component 7: the content of aluminum is 80wt%, the content of lithium is 10wt%, and the content of cobalt is 10wt%.
[0036] System component 8: the content of aluminum is 79wt%, the content of lithium is 12wt%, and the content of nickel is 9wt%.
[0037] System component 9: the aluminum content is 88wt%, the lithium content is 5, and the cobalt content is 7wt%....
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Abstract
The invention relates to a ternary-system aluminum lithium alloy preparation device and a ternary-system aluminum lithium alloy preparation method, belonging to the technical field of hydrogen production. The ternary-system aluminum lithium alloy preparation device is characterized by comprising a shell, an alloy preparation container and a mould, wherein a feeding port is arranged at the top of the shell and is connected with the alloy preparation container, and a stainless steel tube is arranged at the top of the shell and is connected with a vacuum pump and an argon bottle; an argon outlet and a control valve are arranged at the bottom of the shell; the bottom of the alloy preparation container is connected with an electric heating wire, a thermocouple and a temperature controller; a heat insulation layer is wrapped at the periphery of the alloy preparation container; the bottom of the alloy preparation container is connected with a high-temperature-resistance tube and the control valve; and the bottom of the mould is connected with radiating fins which are connected with the stainless steel tube. The ternary-system aluminum lithium alloy preparation method comprises the steps of melting aluminum and third-system metal, forming ternary-system aluminum lithium alloy by combining aluminum alloy and lithium, and rapidly cooling to finally obtain the high-activity aluminum lithium alloy. The ternary-system aluminum lithium alloy preparation device and the ternary-system aluminum lithium alloy preparation method have the advantages of safety, reliability, easy maintenance, easiness and convenience in operation and the like, and can be widely applied to the preparation of aluminum alloy materials used for producing hydrogen.
Description
technical field [0001] The invention belongs to the technical field of hydrogen preparation, and in particular relates to a preparation device and method for a ternary aluminum-lithium alloy suitable for hydrogen production. Background technique [0002] The hydrolysis of aluminum to produce hydrogen is an ideal source of hydrogen for portable fuel cells. Metal aluminum is rich in resources, low in price, and high in theoretical hydrogen storage capacity, but the surface of ordinary aluminum powder is covered with dense alumina and the resistance value of aluminum completely reacts. In the past few decades, researchers have explored many methods to effectively reduce the temperature of aluminum hydrolysis, increase the reaction rate, etc., and develop related hydrogen production devices. Alloying aluminum with low melting point metals such as Bi, Sn, Ga and In is one of the effective ways to improve the activity of aluminum. This type of aluminum alloy can precipitate a la...
Claims
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