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Catalyst for carbon dioxide dry-reforming of methane, and preparation method and use thereof

A technology of catalysts and oxides, applied in the direction of metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve complex preparation processes, poor stability, and easy carbon deposition of catalysts, etc. problem, to achieve the effects of simple preparation process, strong anti-sintering, and strong anti-surface carbon deposition

Active Publication Date: 2009-01-28
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of existing methane carbon dioxide dry reforming catalysts such as easy carbon deposition, poor stability, and complicated preparation process, and provide a catalyst with good anti-carbon deposition performance, high activity, stable catalytic performance, simple preparation process, and easy industrialization. Catalyst produced and method for its preparation

Method used

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  • Catalyst for carbon dioxide dry-reforming of methane, and preparation method and use thereof
  • Catalyst for carbon dioxide dry-reforming of methane, and preparation method and use thereof
  • Catalyst for carbon dioxide dry-reforming of methane, and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 (3Ni7Co6La 2 o 3 84Al 2 o 3 ):

[0017] Weigh 0.6818g of lanthanum nitrate and dissolve it in 10ml of deionized water to make a solution, then weigh 4.2g of γ-Al 2 o 3 , uniformly impregnate the above-mentioned lanthanum nitrate solution into the powder carrier γ-Al 2 o 3 , standing at room temperature for 6 hours, drying at 120°C for 5 hours, and then calcining at 550°C for 6 hours in an air atmosphere to obtain a modified catalyst carrier. Weigh nickel nitrate, cobalt nitrate 0.7432g, 1.7342g and dissolve in 10ml deionized water to prepare mixed nitrate solution, impregnate evenly on the above-mentioned modified catalyst carrier, let stand at room temperature for 6 hours, and dry at 150°C for 5 hours, and then calcined at 750°C for 6 hours in an air atmosphere to obtain a sample catalyst.

Embodiment 2

[0018] Embodiment 2 (5Ni5Co6La 2 o 3 84Al 2 o 3 ):

[0019] Weigh nickel nitrate, cobalt nitrate, lanthanum nitrate 1.2387g, 1.2387g, 0.6818g respectively, and the rest of the steps are the same as in Example 1.

Embodiment 3

[0020] Embodiment 3 (7Ni3Co6La 2 o 3 84Al 2 o 3 ):

[0021] Weigh nickel nitrate, cobalt nitrate, lanthanum nitrate 1.7342g, 0.7432g, 0.6818g respectively, and the remaining steps are the same as in Example 1.

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PUM

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Abstract

The invention discloses a catalyst applicable to carbon dioxide dry reforming of methane, a preparation method thereof and application thereof. The catalyst utilizes a modified gamma-Al2O3 as a carrier, the gamma-Al2O3 contains one or more oxides of La, Ce and Zr with the mass percentage of 1 percent to 20 percent, Ni with the mass percentage of 1 percent to 20 percent and Co with the mass percentage of 1 percent to 20 percent are take as an active component and the catalyst is prepared by impregnation. The catalyst has the advantages of simple technology, higher catalytic activity and selectivity, higher anti-sintering ability, better ability against carbon deposition on the surface, etc. The invention can be used in the carbon dioxide dry reforming of methane, has reproducibility since reaction material can be obtained from biogas, and has significant meaning on sustainable development of energy and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of new energy development, and relates to a catalyst that can be used for new energy production, especially a catalyst that can be used for reforming methane and carbon dioxide. Background technique [0002] Since fossil fuels such as coal, oil, and natural gas are non-renewable primary energy sources, new renewable energy sources need to be developed. As a good energy carrier, hydrogen will not produce pollution during use, and is regarded as an ideal energy source to replace petroleum in the future. The annual global market demand for hydrogen is about 4.2 billion kilograms, which is now mainly produced through fossil fuels. [0003] At present, the utilization of global biogas is less than 10% of the total production, and its main utilization method is combustion for power generation. However, due to its small scale and difficulty in accessing the Internet, its development has been greatly hindered. Th...

Claims

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Application Information

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IPC IPC(8): B01J23/83B01J23/755C01B3/34
Inventor 马建新周伟徐军科李兆静邬敏忠
Owner TONGJI UNIV
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