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Methane-carbon dioxide reforming reactive catalyst and preparation method thereof

A carbon dioxide, reforming reaction technology, used in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as catalyst deactivation, and achieve anti-carbon performance. Good and excellent catalytic activity and stability

Inactive Publication Date: 2011-08-17
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the methane-carbon dioxide reforming reaction, because the active metals are easy to sinter to form carbon deposits at high temperatures, a large amount of carbon deposits formed on the surface of the catalyst cover the active centers, resulting in catalyst deactivation.

Method used

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  • Methane-carbon dioxide reforming reactive catalyst and preparation method thereof
  • Methane-carbon dioxide reforming reactive catalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Dissolve 5 grams of P123 in 250 ml of deionized water, add 0.01 mol of nickel nitrate and lanthanum nitrate, and 0.05 mol of zirconium oxynitrate to prepare solution A; prepare 0.1 mol / liter potassium hydroxide aqueous solution, and record it as solution B. Slowly drop solution A and solution B into a large beaker under stirring in a water bath at 40°C, stir evenly to form a green precipitate, continue stirring for 5 hours, wash with deionized water, filter with suction, and leave the obtained filter cake to age for 5 hours . Add 300 ml of 0.1 mol / L sodium hydroxide solution, reflux and age for 48 hours, then filter with suction, dry at 110°C for 24 hours, and roast at 400°C for 4 hours to obtain the required 0.2NiO-0.1La 2 o 3 -ZrO 2 catalyst. This catalyst is used for methane-carbon dioxide reforming reaction: take by weighing 0.2 gram of catalyst sample, at first in H 2 20% H by volume 2 / N 2 Reduction at 500°C for 2 hours in a mixed gas, and then in N 2 Turn ...

Embodiment 2

[0036] Dissolve 5 grams of P123 in 250 ml of deionized water, add 0.01 mol of nickel nitrate and calcium nitrate, and 0.05 mol of zirconium nitrate to prepare solution A; prepare 0.1 mol / liter sodium hydroxide aqueous solution, and record it as solution B. Slowly drop solution A and solution B into a large beaker under stirring in a water bath at 40°C, stir evenly to form a green precipitate, continue stirring for 2 hours, wash with deionized water, filter with suction, and leave the obtained filter cake to age for 12 hours . Add 300 ml of deionized water, reflux and age for 48 hours, then filter with suction, dry at 110°C for 24 hours, and roast at 600°C for 5 hours to obtain the required 0.2NiO-0.2CaO-ZrO 2 catalyst. This catalyst is used for methane-carbon dioxide reforming reaction: take by weighing 0.1 gram of catalyst sample, at first in H 2 30% H by volume 2 / N 2 Reduction at 600°C for 1 hour in a mixed gas, and then in N 2 Turn off the N after heating up to 800°C ...

Embodiment 3

[0038] Dissolve 5 grams of P123 in 250 ml of deionized water, add 0.01 mol of cobalt nitrate and magnesium nitrate, and 0.05 mol of zirconium nitrate to prepare solution A; prepare an ammonia solution with a mass fraction of 20%, and record it as solution B. Slowly drip solution A and solution B into a large beaker under stirring in a water bath at 40°C, stir evenly to form a green precipitate, and continue stirring for 12 hours, then wash with deionized water, filter with suction, and leave the obtained filter cake to age for 12 hours . Add 300 ml of ammonia solution with a mass fraction of 20%, reflux and age for 12 hours, then filter with suction, dry at 110°C for 24 hours, and roast at 500°C for 7 hours to obtain the required 0.2CoO-0.2MgO-ZrO 2 catalyst. This catalyst is used for methane-carbon dioxide reforming reaction: take by weighing 0.1 gram of catalyst sample, at first in H 2 10% H by volume 2 / N 2 Reduction at 600°C for 1 hour in the mixed gas, and N 2 After ...

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Abstract

The invention discloses a methane-carbon dioxide reforming reactive catalyst and a preparation method thereof. The methane-carbon dioxide reforming reactive catalyst is a nanometer composite oxide with a mesoporous structure, formed by taking a carrier metal oxide as a substrate and taking another auxiliary metal oxide and an active metal oxide as disperse phases. The catalyst has the advantages of strong catalytic activity, high stability and good anti-carbon performance.

Description

technical field [0001] The invention relates to a methane-carbon dioxide reforming reaction catalyst and a preparation method thereof, belonging to the technical field of chemical catalyst preparation. Background technique [0002] With the development of natural gas chemical industry, it will be an inevitable trend that natural gas with huge reserves will replace petroleum as an important chemical and chemical raw material. At present, the direct utilization of methane is still a long way from industrialization, so the indirect utilization of methane, that is, the route of preparing synthesis gas from methane and then converting it into other products has received extensive attention. Among several pathways for producing synthesis gas from methane, methane-carbon dioxide reforming (CDR) has unique advantages. On the other hand, the process utilizes both carbon dioxide and methane greenhouse gases, which has certain environmental benefits; finally, the synthesis gas with a ...

Claims

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Application Information

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IPC IPC(8): B01J23/83B01J23/78B01J23/75B01J23/745B01J23/755B01J23/46B01J23/42B01J23/58B01J23/63C01B3/40
CPCY02P20/52
Inventor 孙予罕魏伟王慧张军
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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