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Nickel-based catalyst for obtaining synthetic gas through carbon dioxide reforming of methane and preparation method for nickel-based catalyst

A technology of nickel-based catalysts and carbon dioxide, applied in the direction of metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of low catalyst life and poor activity, and achieve methane The effect of increased conversion rate, low cost, and reduced carbon deposition rate

Active Publication Date: 2014-08-06
XINJIANG UNIVERSITY
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] Up to now, although the impregnation method is still a commonly used and effective method for catalyst preparation, there are some disadvantages, such as the prepared catalyst has low service life and poor activity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, the nickel-based catalyst for the reforming of methane carbon dioxide to obtain synthesis gas consists of nickel oxide 5% to 15%, magnesium oxide 2% to 10% and gamma-alumina 75% to 93% by mass percentage; the methane carbon dioxide The preparation method of the nickel-based catalyst obtained by reforming synthesis gas is carried out according to the following steps:

[0025] The first step is to prepare the mixed solution: use Ni(NO 3 ) 2 ·6H 2 O, Mg(NO 3 ) 2 ·6H 2 O and deionized water are used as raw materials to prepare a mixed solution; in this mixed solution, Ni(NO 3 ) 2 The concentration is 0.2 mol / L to 0.5 mol / L, Mg(NO 3 ) 2 The concentration is 0.3 mol / L to 0.6 mol / L;

[0026] The second step of preparation: the γ-Al 2 O 3 Put it into the rotary evaporator, heat, vacuumize, heat to 40°C to 60°C, the vacuum degree reaches 0.065MPa to 0.085MPa, and keep it for 5 minutes to 10 minutes; under th...

Embodiment 2

[0027] Embodiment 2 is different from Embodiment 1 in that: the rotation speed in the above second step is controlled at 160 rpm to 200 rpm.

Embodiment 3

[0028] Embodiment 3 is different from Embodiments 1 to 2 in that: the rotational speed in the above second step is controlled at 160 rpm or 200 rpm.

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PUM

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Abstract

The invention relates to the technical field of catalysts for obtaining synthesis gas by reforming methane and carbon dioxide, and relates to a nickel-based catalyst for obtaining synthesis gas by reforming methane and carbon dioxide and a preparation method thereof; the nickel-based catalyst for obtaining synthesis gas by reforming methane and carbon dioxide consists of NiO, MgO and γ-Al2O3; the preparation method is carried out according to the following steps: the first step of preparing a mixed solution and the second step of preparation. The positive effects of the present invention are: compared with the prior art, the methane conversion rate of the nickel-based catalyst obtained in the present invention has been greatly improved, the service life has also been greatly improved, and the carbon deposition rate has been greatly reduced. The cost of the present invention Low, better economy.

Description

technical field [0001] The invention relates to the technical field of a catalyst for obtaining synthesis gas by reforming methane with carbon dioxide, and relates to a nickel-based catalyst for obtaining synthesis gas by reforming methane with carbon dioxide and a preparation method thereof. Background technique [0002] Carbon dioxide is one of the main gases that produce the greenhouse effect. Facing the embarrassing situation of global warming, how to make resource utilization has increasingly become one of the hot issues that human beings are most concerned about. Using methane carbon dioxide reforming technology to prepare synthesis gas (a mixture of carbon monoxide and hydrogen), and then through F-T synthesis to prepare oxygenated compounds or liquid fuels, it is helpful for alleviating energy crisis, low-carbon emission reduction, and resource utilization of waste. It is of great significance for human society to enter a sustainable development mode. [0003] Unde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/755C01B3/40
CPCY02P20/52
Inventor 马凤云冷帅周岐雄刘景梅耿莉莉刘红霞
Owner XINJIANG UNIVERSITY
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