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NiO/gamma-Al2O3 catalyst of methane and carbon dioxide reforming synthesis gas and method for preparing NiO/gamma-Al2O3 catalyst of methane and carbon dioxide reforming synthesis gas

A carbon dioxide and synthesis gas technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of poor activity and low life, and achieve low cost, Effects of long catalyst life and high hydrogen selectivity

Active Publication Date: 2013-03-20
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The invention provides a NiO / γ-Al method for producing synthesis gas by reforming methane and carbon dioxide 2 o 3 Catalyst and preparation method thereof, overcome above-mentioned deficiencies in the prior art, it can effectively solve the existing problem of low life, poor activity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, the NiO / γ-Al of this carbon dioxide reforming of methane synthesis gas 2 o 3 The preparation of the catalyst is carried out according to the following steps: in the first step, 8 to 9 parts of nickel nitrate hexahydrate and 10 parts of gamma-alumina are weighed respectively in parts by weight;

[0025] The second step is to configure the mixed solution: the nickel nitrate hexahydrate weighed in the previous step is prepared into a solution with deionized water; in this solution, the concentration of nickel nitrate is 0.5 mole per liter to 1 mole per liter;

[0026] The third step of preparation: first, add γ-alumina to the solution, keep it for 5 minutes to 10 minutes, and then pour it into the colloid mill; secondly, adjust the gap between the colloid grinding disc and the static grinding disc to 0.01 mm to 0.3 mm, and feed cooling circulating water into the colloid mill; finally, start the colloid mill, make the suspension circulate in the mill for 1 ho...

Embodiment 2

[0027] Embodiment 2, the NiO / γ-Al of this carbon dioxide reforming of methane synthesis gas 2 o 3 The preparation of the catalyst is carried out according to the following steps: in the first step, 8 parts or 9 parts of nickel nitrate hexahydrate and 10 parts of gamma-alumina are weighed respectively in parts by weight;

[0028] The second step is to configure the mixed solution: the nickel nitrate hexahydrate weighed in the previous step is prepared into a solution with deionized water; in this solution, the concentration of nickel nitrate is 0.5 mole per liter or 1 mole per liter;

[0029] The third step of preparation: first, add γ-alumina to the solution, keep it for 5 minutes or 10 minutes, and then pour it into the colloid mill; secondly, adjust the gap between the colloid grinding disc and the static grinding disc to 0.01 mm or 0.3 mm, and feed cooling circulating water into the colloid mill; finally, start the colloid mill, make the suspension circulate and grind in t...

Embodiment 3

[0030] Example 3, as a preference of the above example, in the first step, 8.724 parts of nickel nitrate hexahydrate and 10 parts of γ-alumina were weighed in parts by weight.

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Abstract

The invention relates to the technical field of catalysts of a synthesis gas which is obtained through reforming methane and carbon dioxide, and in particular relates to a NiO / gamma-Al2O3 catalyst of a methane and carbon dioxide reforming synthesis gas and a method for preparing the NiO / gamma-Al2O3 catalyst of the methane and carbon dioxide reforming synthesis gas. The NiO / gamma-Al2O3 catalyst of the methane and carbon dioxide reforming synthesis gas is prepared through the following step that: step 1, 8-9 parts of nickel nitrate hexahydrate and 10 parts of gamma-aluminium oxide are respectively weighed by weight. Compared with a conventional method for producing a NiO / gamma-Al2O3 catalyst, the method has a simple and convenient operating process, the NiO / gamma-Al2O3 catalyst which is produced through adopting the method has the characteristics of high methane conversion rate, high hydrogen selectivity and long service life of the catalyst; and moreover, the produced NiO / gamma-Al2O3 catalyst is low in use cost and has good economy.

Description

technical field [0001] The invention relates to the technical field of catalysts for obtaining synthesis gas by reforming methane and carbon dioxide, and relates to a NiO / γ-Al catalyst for obtaining synthesis gas by reforming methane and carbon dioxide 2 o 3 Catalyst and method for its preparation. 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. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755C01B3/40
CPCY02P20/52
Inventor 马凤云莫文龙刘红霞
Owner XINJIANG UNIVERSITY
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