Modified boron nitride loaded nickel-based methane dry reforming catalyst as well as preparation method and application thereof

A technology for dry reforming of methane and boron nitride, applied in physical/chemical process catalysts, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of complex catalyst components, cumbersome preparation steps, environmental pollution, etc. Carbon deposition ability, simple preparation process, excellent anti-sintering effect

Pending Publication Date: 2022-03-18
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Carbon dioxide and methane gas cause the greenhouse effect and cause great environmental pollution
However, the components of the catalyst prepared by this method are complex and the preparation steps are cumbersome
Therefore, it is still a challenging task to find a high-performance nickel-based methane dry catalyst with simple modification steps for BN and excellent anti-sintering performance after loading Ni.

Method used

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  • Modified boron nitride loaded nickel-based methane dry reforming catalyst as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0029] In this embodiment, a method for preparing a modified boron nitride-supported nickel-based methane dry reforming catalyst has the following process steps:

[0030] a. Preparing the BN of the nickel-based methane dry reforming catalyst supported by modified boron nitride is peeled off by urea ball milling method, so that the surface is connected with amino functional groups, and the modified boron nitride product A is obtained;

[0031] b. Calculated according to the mass percentage, the nickel loading of the nickel-based methane dry reforming catalyst prepared by the modified boron nitride supported by the target is 5wt%, and the nickel nitrate and the boron nitride connected with the amino group are dispersed in the Stir vigorously in deionized water for 6 hours; then distill off the solvent and dry at 80°C for 10 hours; then in an air atmosphere, heat up at a rate of 2°C / min and heat up to 550°C for 6 hours to obtain Powder product B, as a precursor of nickel-methyl m...

Embodiment 2

[0039] In this embodiment, a method for preparing a modified boron nitride-supported nickel-based methane dry reforming catalyst has the following process steps:

[0040] a. The BN of the nickel-based methane dry reforming catalyst supported by modified boron nitride is peeled off in advance by alcohol ultrasonic method, so that the surface is connected with hydroxyl functional groups, and the modified boron nitride product A is obtained;

[0041] b. Calculated according to the mass percentage, the nickel loading of the nickel-based methane dry reforming catalyst loaded with modified boron nitride prepared by the target is 2wt%, and the nickel nitrate and the boron nitride connected with the hydroxyl group are dispersed in the Stir vigorously in deionized water for 4 hours; then distill off the solvent and dry at 60°C for 12 hours; then in an air atmosphere, heat up at a rate of 2°C / min and heat up to 600°C for 4 hours to obtain Powder product B, as a precursor of nickel-methy...

Embodiment 3

[0047] In this embodiment, a method for preparing a modified boron nitride-supported nickel-based methane dry reforming catalyst has the following process steps:

[0048] a. Preparing the BN of the nickel-based methane dry reforming catalyst supported by modified boron nitride is peeled off by urea ball milling method, so that the surface is connected with amino functional groups, and the modified boron nitride product A is obtained;

[0049] b. Calculated according to the mass percentage, the nickel loading of the nickel-based methane dry reforming catalyst prepared by the modified boron nitride supported by the target is 1wt%, and the nickel acetone acetate and the boron nitride with amino groups are weighed to disperse Stir vigorously in deionized water for 6 hours; then distill off the solvent and dry at 80°C for 12 hours; then in an air atmosphere, heat up at a rate of 1°C / min and heat up to 550°C for calcination for 5 hours. Obtain powder product B, as nickel base methan...

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Abstract

The invention relates to a modified boron nitride loaded nickel-based methane dry reforming catalyst as well as a preparation method and application thereof. According to the method, different stripping methods are used for modifying the boron nitride, then the modified boron nitride is used as a carrier for supporting the active metal Ni, and the excellent sintering resistance and carbon deposition resistance are achieved in the methane dry reforming reaction. According to the invention, the content of Ni is adjusted by using a simple impregnation method, and the modified boron nitride loaded nickel catalyst with high activity and high stability is obtained. The catalyst can be used for solving the problems of sintering and serious carbon deposition of active components in a methane dry reforming reaction. The catalyst has the advantages of simple preparation process, low cost and high catalytic efficiency.

Description

technical field [0001] The invention relates to a preparation method and application of a nickel-based catalyst supported by modified boron nitride, and belongs to the technical fields of nano-catalyst preparation technology and environmental protection. The catalyst can effectively solve the problem of sintering of reactive components under high temperature conditions and carbon deposition in the reaction. Background technique [0002] Carbon dioxide and methane gas cause the greenhouse effect and cause great environmental pollution. CH 4 and CO 2 Converted into syngas CO and H 2 The methane dry reforming reaction can effectively utilize these two greenhouse gases, and its product H 2 Syngas with a / CO ratio of 1 is the main raw material for a series of chemical reactions such as Fischer-Tropsch synthesis, which can reduce environmental pollution and create economic benefits. Among them, the catalyst is the core of methane dry reforming to synthesis gas technology. A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C01B3/40
CPCB01J27/24C01B3/40C01B2203/0238C01B2203/1241C01B2203/1058C01B2203/1082Y02P20/52
Inventor 张登松张晓玉邓江颜婷婷
Owner SHANGHAI UNIV
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