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Catalyst for hydrogen production by methanol steam reforming and preparation method and application of catalyst

A steam reforming and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, heterogeneous catalyst chemical elements, etc., can solve the problem of insufficient catalytic efficiency and low production efficiency of catalysts and other problems, to achieve the effect of easy industrialized mass production and application, prolonging the service life and low manufacturing cost

Pending Publication Date: 2021-03-26
CHUANHUA GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to provide a method for preparing a catalyst for steam reforming of methanol to produce hydrogen, so as to solve the problem that the catalytic efficiency of the existing catalyst is not high enough, resulting in low production efficiency

Method used

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Embodiment 1

[0026] According to the present invention, a method for preparing a catalyst for steam reforming of methanol to produce hydrogen is provided. The catalyst for steam reforming of methanol to produce hydrogen is prepared, specifically, comprising the following steps:

[0027] 1) configure the aqueous solution of nitrate to saturation, and the aqueous solution of nitrate is composed of copper ions, zinc ions and magnesium ions;

[0028] 2) immersing alumina balls into the nitrate solution described in step 1) for 20 minutes, wherein the diameter of the alumina balls is 1 mm;

[0029] 3) filtering the impregnated alumina in step 2), drying under vacuum, calcining at 400° C. for 4 hours, and then cooling to room temperature;

[0030] 4) Repeat steps 2) and 3) 5 times in sequence to obtain the catalyst. The obtained catalyst components include 20 parts of copper oxide, 10 parts of zinc oxide, 60 parts of aluminum oxide and 2 parts of magnesium oxide in parts by mass.

Embodiment 2

[0032] According to the present invention, a method for preparing a catalyst for steam reforming of methanol to produce hydrogen is provided. The catalyst for steam reforming of methanol to produce hydrogen is prepared, specifically, comprising the following steps:

[0033] 1) configure the aqueous solution of nitrate to saturation, and the aqueous solution of nitrate is composed of copper ion, zinc ion, manganese ion and cerium ion;

[0034] 2) immerse alumina balls into the nitrate solution described in step 1) for 30 minutes, wherein the diameter of the alumina balls is 2 mm;

[0035] 3) filtering the impregnated alumina in step 2), drying under vacuum, calcining at 600° C. for 6 hours, and then cooling to room temperature;

[0036] 4) Repeat steps 2) and 3) twice in sequence to obtain the catalyst. The obtained catalyst components include 30 parts of copper oxide, 5 parts of zinc oxide, 40 parts of aluminum oxide, 0.1 part of manganese oxide and 0.5 part of cerium oxide i...

Embodiment 3

[0039] According to the present invention, a method for preparing a catalyst for steam reforming of methanol to produce hydrogen is provided. The catalyst for steam reforming of methanol to produce hydrogen is prepared, specifically, comprising the following steps:

[0040] 1) configure the aqueous solution of nitrate to saturation, and the aqueous solution of nitrate is composed of copper ions, zinc ions, magnesium ions and zirconium ions;

[0041] 2) immersing alumina balls into the nitrate solution described in step 1) for 10 minutes, wherein the diameter of the alumina balls is 0.5 mm;

[0042] 3) filtering the impregnated alumina in step 2), drying under vacuum, calcining at 300° C. for 10 hours, and then cooling to room temperature;

[0043] 4) Steps 2) and 3) were repeated four times in sequence to obtain the catalyst. The obtained catalyst components include 10 parts of copper oxide, 20 parts of zinc oxide, 40 parts of aluminum oxide, 2 parts of magnesium oxide and 3 ...

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Abstract

The invention belongs to the technical field of catalysts, and particularly relates to a catalyst for hydrogen production by methanol steam reforming and a preparation method and application of the catalyst. The preparation method of the catalyst for hydrogen production by methanol steam reforming comprises the following steps: 1) preparing an aqueous solution of nitrate until the aqueous solutionof nitrate is saturated, metal ions in the aqueous solution of nitrate being composed of copper ions, zinc ions and M ions; 2) dipping alumina balls in the nitrate solution obtained in the step 1); 3) filtering, drying, calcining and cooling the alumina impregnated in the step 2); and 4) repeating the steps (2) and (3) for 2-5 times in sequence to obtain the catalyst for hydrogen production by methanol steam reforming. In addition, the invention also provides the catalyst for hydrogen production by methanol steam reforming prepared by the preparation method and application of the catalyst. The catalyst has the advantage of large specific surface area, so that the catalytic efficiency is greatly improved, and the service life of the catalyst is prolonged.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a catalyst for hydrogen production by steam reforming of methanol, its preparation method and application. Background technique [0002] The development of energy has always been the lifeline of the civilization and progress of human society. Hydrogen is called "energy currency". Its calorific value is second only to nuclear fuel, and it is three times the calorific value of gasoline. Hydrogen is a non-toxic energy carrier, and does not produce greenhouse gases and other pollutants after combustion, which is very conducive to energy saving and emission reduction, so it is regarded as an ideal clean new energy in the 21st century. In recent years, due to the breakthrough and continuous development of proton exchange membrane fuel cell technology, hydrogen energy is one of the important bridges for the transition from fossil energy to renewable energy. At the same ti...

Claims

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Application Information

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IPC IPC(8): B01J23/80B01J23/889C01B3/32H01M8/0612
CPCB01J23/002B01J23/80B01J23/8892C01B3/326H01M8/0618C01B2203/0233C01B2203/1076C01B2203/1082C01B2203/1223B01J2523/00B01J2523/17B01J2523/22B01J2523/27B01J2523/31B01J2523/3712B01J2523/72B01J2523/48Y02E60/50
Inventor 吴献忠黄治民
Owner CHUANHUA GRP
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