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Hydrotalcite loaded nickel catalyst as well as preparation method and application thereof

A catalyst and nickel-supported technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of catalyst stability and achieve good activity and stability, high specific surface area, low price effect

Inactive Publication Date: 2013-05-01
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of Mg(Al)O (prepared by roasting MgAl-LDH) supported Ni catalysts for glycerol steam reforming has not been reported, and the published patents only give the initial activity of the catalyst, which is very important for the promotion of catalyst applications. Nothing about stability

Method used

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  • Hydrotalcite loaded nickel catalyst as well as preparation method and application thereof
  • Hydrotalcite loaded nickel catalyst as well as preparation method and application thereof
  • Hydrotalcite loaded nickel catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: The prepared MgAl-LDH was ground into powder and placed in a muffle furnace at 400°C for 4 h to obtain Mg(Al)O; 0.743 g Ni(NO 3 ) 2 6H 2 O was added to the Erlenmeyer flask to make a 25 mL solution, and then 0.85 g Mg(Al)O powder was added, then the temperature was controlled in a water bath at 80 °C, and magnetically stirred for 2 h. The resulting precipitate was filtered, dried at 110 °C for 12 h, and calcined at 800 °C for 4 h to obtain the catalyst.

Embodiment 2

[0028] Example 2: The preparation method is the same as in Example 1, except that the calcination temperature of MgAl-LDH is changed to 500°C.

Embodiment 3

[0029] Example 3: The preparation method is the same as in Example 1, except that the calcination temperature of MgAl-LDH is changed to 600°C.

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Abstract

The invention discloses an Mg-Al mixed oxide loaded nickel glycerol steam reforming catalyst as well as a preparation method and an application thereof, and belongs to the technical field of catalyst preparation. The preparation method comprises the following steps: taking an Mg-Al mixed oxide (Mg(Al)O) as a carrier and metal nickel as an active component, preparing Mg(Al)O in such a way that Mg-Al hydrotalcite (MgAl-LDH) is calcined at a temperature of 400-800 DEG C, wherein the catalyst comprises the following components by mass percent: 15-25% of Ni and 85-75% of Mg(Al)O, and loading Ni on the carrier by an impregnation method. The preparation method is simple, the raw materials are easy to obtain, and the prepared catalyst is used for hydrogen production from steam reforming of glycerol, and has the advantages of high glycerol gasification rate, good hydrogen selectivity, low selectivity of byproducts (CO and CH4), stable performance of the catalyst and the like.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to a magnesium-aluminum composite oxide-supported nickel-glycerin steam reforming catalyst and a preparation method and application thereof. Background technique [0002] In recent years, due to the sharp increase in biodiesel production and the rapid development of fuel cell technology, the use of biodiesel by-product glycerol for hydrogen production by steam reforming has attracted great attention from researchers at home and abroad. [0003] The hydrogen production reaction process of glycerol steam reforming is complicated, with many by-products, and the requirements for the catalyst are harsh. Therefore, the focus of research on hydrogen production from glycerol steam reforming is mainly on the preparation of catalysts with high activity, good selectivity and strong stability. Patent CN101049909A discloses a kind of noble metal Rh, Pt, Pd as active com...

Claims

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Application Information

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IPC IPC(8): B01J23/755C01B3/32
Inventor 詹瑛瑛王星会陈崇启刘琦林性贻郑起
Owner FUZHOU UNIV
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