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Supported catalyst for methane three-reforming reaction and preparation method and application of supported catalyst

A technology of supported catalyst and reforming reaction, applied in the field of chemical industry

Active Publication Date: 2014-07-30
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Therefore, the existing catalysts for the methane triple reforming reaction need to be further studied

Method used

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  • Supported catalyst for methane three-reforming reaction and preparation method and application of supported catalyst
  • Supported catalyst for methane three-reforming reaction and preparation method and application of supported catalyst
  • Supported catalyst for methane three-reforming reaction and preparation method and application of supported catalyst

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preparation example Construction

[0047] The method for preparing a supported catalyst for methane triple reforming reaction according to an embodiment of the present invention can effectively prepare a supported catalyst for methane triple reforming reaction, and the catalyst can not only be effectively used for methane triple reforming reaction, but also can be used for coke Furnace gas reforming to produce synthesis gas, and coke oven gas methanation to produce liquefied natural gas. The inventors found that the supported catalyst of this composition can significantly increase the conversion rate of methane and carbon dioxide. If the particle size of the carrier is too high or too low, the conversion rate of methane and carbon dioxide will be reduced. When the particle size of the carrier is in the range of 425-700 microns, the conversion rate of methane and carbon dioxide is the best. In addition, the H in the obtained product 2 / CO has a wide adjustable range. Moreover, no precious metal components are in...

Embodiment 1

[0052] Raw material composition:

[0053] 12.72 g nickel nitrate, 0.5858 g cerium nitrate, 0.5225 g lanthanum nitrate, 6.4 ml deionized water and 20 g gamma-Al 2 o 3 Carrier (425-700 microns).

[0054] Preparation:

[0055] At room temperature, nickel nitrate, cerium nitrate and lanthanum nitrate were placed in a small beaker filled with deionized water, heated and magnetically stirred to completely dissolve the nitrates and obtain a dark green transparent immersion solution.

[0056] γ-Al 2 o 3 The carrier is placed in an Erlenmeyer flask with side branches, and the impregnation solution is slowly added into the Erlenmeyer flask, and the conical flask is shaken rapidly while adding, so that the impregnation solution is adsorbed on the inner and outer surfaces of the carrier as much as possible. After the adsorption is complete, let it stand for 10 minutes.

[0057] Connect the side branch of the Erlenmeyer flask to the vacuum pump through a hose, and use the vacuum pump...

Embodiment 2

[0060] Raw material composition:

[0061] 14.20 g nickel nitrate, 0.8994 g cerium nitrate, 0.8021 g lanthanum nitrate, 7.2 ml deionized water and 20 g gamma-Al 2 o 3 Carrier (425-700 microns).

[0062] Preparation method: with embodiment 1.

[0063] The obtained catalyst composition: 12% by mass of Ni-1.5% by mass of CeO 2 -1.5 mass% La 2 o 3 / γ-Al 2 o 3 .

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Abstract

The invention discloses a supported catalyst for a methane three-reforming reaction and a preparation method and application of the supported catalyst. The supported catalyst comprises 11-13 percent by weight of Ni, 1-3 percent by weight of CeO2, 1-3 percent by weight of La2O3, and a carrier, wherein the average particle size of the carrier is 425-700 microns. According to the supported catalyst for the methane three-reforming reaction, disclosed by the invention, the conversion rates of the methane and the carbon dioxide can be simultaneously increased; the adjustable range of H2 / CO in the obtained product is wide.

Description

technical field [0001] The invention belongs to the field of chemical industry. Specifically, the invention relates to a supported catalyst for methane triple reforming reaction and its preparation method and application. Background technique [0002] In the process of the rapid development of my country's national economy, the bottleneck effect of resources has become more and more prominent. Petroleum resources themselves are not renewable. Increase. The main component of natural gas is methane. In recent years, the research on the catalytic conversion of methane to synthesis gas and the production of downstream products from synthesis gas has attracted widespread attention. Currently, there are three main ways to produce syngas from methane, namely steam reforming of methane (SRM), carbon dioxide reforming of methane (CDR) and partial oxidation of methane (POM). The chemical reactions that occur in the three processes are as follows: [0003] CH 4 +H 2 O=CO+3H 2 ,△H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83C01B3/40
CPCY02P20/52
Inventor 吴道洪史雪君左阿惠
Owner SHENWU TECH GRP CO LTD