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Hydrogen storage alloy type hydrogenation catalyst and preparation method thereof

A technology for hydrogenation catalysts and hydrogen storage alloys, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of large wastewater discharge, complicated treatment methods, Unfavorable environmental protection and other issues, to achieve the effect of simple operation, excellent effect, and few types

Active Publication Date: 2009-06-10
兴化市正阳水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the treatment method is complicated, the activity of catalytic hydrogenation is not improved much, and the discharge of wastewater is large, which is not conducive to environmental protection.

Method used

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  • Hydrogen storage alloy type hydrogenation catalyst and preparation method thereof
  • Hydrogen storage alloy type hydrogenation catalyst and preparation method thereof
  • Hydrogen storage alloy type hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Preparation of Hydrogen Storage Alloy Type Hydrogenation Catalyst MlNi 3.7 co 0.6 mn 0.3 Al 0.4 The alloy ingot is configured according to the design composition, and the metals used are Ni90at%, Co90at%, Mn90at%, Al90at%, M is mixed rare earth, which contains 40at%La, 3at%Ce, 10at%Pr, 35at%Nd. Clean the above-mentioned raw materials with an ultrasonic oscillator, then distribute the weight according to the design composition, put the prepared material in a water-cooled copper mold, and melt it in an electric arc furnace under the protection of an argon atmosphere. During the melting process, the alloy is turned over and weighed. Melt five times while carrying out electromagnetic stirring to ensure the uniformity of the alloy. After smelting, seal the alloy ingot in a vacuum quartz tube, put it into a heat treatment furnace, heat it up to 1000-1200°C for 6-10 hours and then quench it. Then the sample was ball milled to obtain a powder with a particle size below 100↘...

Embodiment 2

[0047] Preparation of Hydrogen Storage Alloy Type Hydrogenation Catalyst MlNi 3.7 co 0.6 mn 0.3 Al 0.4 The alloy ingot is configured according to the design composition. The metals used are Ni95at%, Co95at%, Mn95at%, Al95at%, M is mixed rare earth, which contains 45at%La, 5at%Ce, 12at%Pr, 38at%Nd. Clean the above-mentioned raw materials with an ultrasonic oscillator, then distribute the weight according to the design composition, put the prepared material in a water-cooled copper mold, and melt it in an electric arc furnace under the protection of an argon atmosphere. During the melting process, the alloy is turned over and weighed. Melt five times while carrying out electromagnetic stirring to ensure the uniformity of the alloy. After smelting, seal the alloy ingot in a vacuum quartz tube, put it into a heat treatment furnace, heat it up to 1000-1200°C for 6-10 hours and then quench it. Then the sample was ball milled to obtain a powder with a particle size below 100↘m. ...

Embodiment 3

[0049] Preparation of Hydrogen Storage Alloy Type Hydrogenation Catalyst MlNi 3.7 co 0.6 mn 0.3 Al 0.4 The alloy ingot is configured according to the design composition, and the metals used are Ni97at%, Co97at%, Mn97at%, Al97at%, M is mixed rare earth, which contains 48at%La, 6at%Ce, 13at%Pr, 40at%Nd. Clean the above-mentioned raw materials with an ultrasonic oscillator, then distribute the weight according to the design composition, put the prepared material in a water-cooled copper mold, and melt it in an electric arc furnace under the protection of an argon atmosphere. During the melting process, the alloy is turned over and weighed. Melt five times while carrying out electromagnetic stirring to ensure the uniformity of the alloy. After smelting, seal the alloy ingot in a vacuum quartz tube, put it into a heat treatment furnace, heat it up to 1000-1200°C for 6-10 hours and then quench it. Then the sample was ball milled to obtain a powder with a particle size below 100↘...

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Abstract

The invention provides a hydrogen storage alloy type hydrogenation catalyst and a preparation method thereof. The hydrogen storage alloy type hydrogenation catalyst product is M1Ni3.7Co0.6Mn0.3Al0.4 (M is mixed rare earth). The method comprises the processes of prefabrication and activation of the hydrogen storage alloy type hydrogenation catalyst, wherein the prefabrication process is to smelt alloy raw materials for designing the counterweight of compositions under the protection of argon gas atmosphere, and to perform heat treatment, quenching and milling on the alloy raw materials; and the activation process is to add an alkaline solution of potassium borohydride or sodium borohydride into prefabricated hydrogen storage alloy type hydrogenation catalyst powder, to heat the mixture to obtain a treatment liquid, to add solid potassium borohydride or solid sodium borohydride into the treatment liquid, and to perform temperature rise, filtration and drying to obtain the activated hydrogen storage alloy type hydrogenation catalyst product. The yield of a reaction product obtained from the hydrogen storage alloy type hydrogenation catalyst during hydrogenation reaction at a temperature of 200 DEG C is improved from 2.6 percent to 65.6 percent.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, in particular to a hydrogen storage alloy type hydrogenation catalyst and a preparation method thereof. Background technique [0002] Hydrogen storage alloy is a new type of green functional material that has attracted more and more attention since the 1970s. It has hydrogen absorption and desorption properties under certain conditions. It is characterized by large hydrogen storage capacity, no pollution, safety, reliability, and reusability. Wait. Hydrogen storage alloys are commonly used in energy conversion technologies, and their physical and chemical properties have been extensively and intensively studied in this regard. Hydrogen molecules are easily dissociated and absorbed on the surface of hydrogen storage alloys, and form highly active metal hydrides with metals, which can release hydrogen under certain conditions. This special property makes hydrogen storag...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J23/83C22C30/00
Inventor 邓小霞程晓峰张法亮宫清
Owner 兴化市正阳水泥有限公司
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