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Nickel-based catalyst for methane carbon dioxide dry reforming as well as preparation method and application of nickel-based catalyst

A nickel-based catalyst, carbon dioxide technology, applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve the weak interaction between active metal and support, catalytic performance problems such as loss, complex modification methods, etc., to achieve excellent methane dry reforming activity and stability, simple preparation steps, and overcome the effects of carbon deposition and sintering problems.

Pending Publication Date: 2021-06-22
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the chemical inertness of the boron nitride surface, the interaction force between the active metal and the support is weak, and the metallic nickel particles are prone to sintering during the reaction process, resulting in the loss of catalytic performance.
Although the sintering problem of the catalyst can be alleviated by a certain modification method, it is not popular due to the complexity of the modification method and the high requirements for equipment.

Method used

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  • Nickel-based catalyst for methane carbon dioxide dry reforming as well as preparation method and application of nickel-based catalyst
  • Nickel-based catalyst for methane carbon dioxide dry reforming as well as preparation method and application of nickel-based catalyst

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Embodiment 1

[0030] A nickel-based catalyst for methane carbon dioxide dry reforming reaction, with metal oxide ZrO 2 As a carrier, metal nickel is supported, followed by boron nitride coating, so that a boron nitride protective layer is coated on the surface of the oxide-supported nickel-based catalyst to form a nickel-based catalyst composite material for methane carbon dioxide dry reforming reaction.

[0031] A method for preparing a nickel-based catalyst used in this embodiment for methane carbon dioxide dry reforming reaction, the process steps are as follows:

[0032] a. The first stage of calcination:

[0033] 0.55g Ni(NO 3 ) 2 ·6H 2 O and 1.0 g nanometer ZrO 2 Pour the powder into a round-bottomed flask, then add 80mL of deionized water, mix it evenly with ultrasound, and after stirring thoroughly, evaporate to dryness with a rotary evaporator at 45°C to remove the solvent of the suspension, collect the powder sample and place it in Dry overnight in a blast oven at 60°C; then ...

Embodiment 2

[0042] A nickel-based catalyst for the dry reforming reaction of methane and carbon dioxide. The metal oxide lanthanum oxide is used as a carrier, and the nickel-based catalyst is coated with nitrogen on the surface of the oxide-supported nickel-based catalyst by loading metal nickel and then coating with boron nitride. A boron oxide protective layer is used to form a nickel-based catalyst composite for methane carbon dioxide dry reforming reaction.

[0043] A method for preparing a nickel-based catalyst used in this embodiment for methane carbon dioxide dry reforming reaction, the process steps are as follows:

[0044] a. The first stage of calcination:

[0045] 0.55gNi(NO 3 ) 2 ·6H 2 Pour O and 1.0g of nanometer lanthanum oxide powder into a round bottom flask, then add 80mL of deionized water, mix evenly by ultrasonic, after fully stirring, evaporate to dryness with a rotary evaporator at 45°C, and remove the solvent of the suspension , collect the powder samples and pu...

Embodiment 3

[0054] A nickel-based catalyst for methane carbon dioxide dry reforming reaction, with metal oxide ZrO 2 As a carrier, metal nickel is supported, followed by boron nitride coating, so that a boron nitride protective layer is coated on the surface of the oxide-supported nickel-based catalyst to form a nickel-based catalyst composite material for methane carbon dioxide dry reforming reaction.

[0055] A method for preparing a nickel-based catalyst used in this embodiment for methane carbon dioxide dry reforming reaction, the process steps are as follows:

[0056] a. The first stage of calcination:

[0057] 0.47gNi(CH 3 COO) 2 4H 2 O and 1.0 g nanometer ZrO 2 Pour the powder into a round-bottomed flask, then add 80mL of deionized water, mix it evenly with ultrasound, and after stirring thoroughly, evaporate to dryness with a rotary evaporator at 45°C to remove the solvent of the suspension, collect the powder sample and place it in Dry overnight in a blast oven at 60°C; then...

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Abstract

The invention relates to a nickel-based catalyst for methane carbon dioxide dry reforming as well as a preparation method and application of the nickel-based catalyst. According to the method, a metal oxide such as zirconium oxide and lanthanum oxide or a solid solution between the zirconium oxide and the lanthanum oxide is used as a carrier, and the boron nitride coated nickel-based catalyst is prepared by a method of dipping boric acid and urea and calcining. The prepared catalyst combines the advantages of boron nitride and metal oxide, has high-dispersion active metal, and has excellent carbon deposition resistance and sintering resistance. The method is widely applicable to nickel-based catalysts loaded by various metal oxide carriers, and has certain universality. The method has the advantages of simple preparation process, low cost, universality and the like, and can be widely applied to the field of methane carbon dioxide dry reforming application.

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency methane dry reforming catalyst, which belongs to the field of nano catalyst preparation technology and industrial catalysis application. The preparation process has low cost and universal applicability, and the prepared boron nitride-coated catalyst can effectively solve the problems of sintering and carbon deposition of active components in methane dry reforming reaction. Background technique [0002] As an important C1 resource, the effective utilization of methane can significantly increase its added value and meet the needs of chemical production. In industry, methane is converted into synthesis gas (H 2 , CO), and then prepare the necessary chemicals and liquid fuels by the Fischer-Tropsch synthesis process. Among them, methane dry reforming uses methane and carbon dioxide as raw materials, and prepares synthesis gas through a catalyst method. Compared with wet reforming, this p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J37/08B01J37/02B01J37/18C01B3/40
CPCB01J27/24B01J23/002B01J37/088B01J37/0201B01J37/082B01J37/18C01B3/40C01B2203/0238C01B2203/1058C01B2203/1241B01J35/23Y02P20/52
Inventor 张登松邓江张剑平李红蕊颜婷婷
Owner SHANGHAI UNIV
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