Catalyst for methane dry gas reforming reaction and preparation method thereof

A technology of dry gas reforming and catalyst, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve the problems of increasing the thermal conductivity of oxide carriers, easy collapse of wrapping materials, and limited stabilization effect , to achieve the effects of improving heat transfer efficiency, improving anti-carbon performance, and simple preparation method
CN113209999BActive Publication Date: 2022-04-15DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2022-04-15

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Abstract

The invention discloses a novel methane dry gas reforming reaction catalyst as well as its preparation and application. The catalyst of the present invention uses an oxide whose surface is covered by ultrathin boron nitride (h-BN, 1-2 layers) as a carrier, and the size of the active component Ni nanoparticles carried thereon is between 2nm and 5nm, wherein : The oxide is SiO 2 、Al 2 o 3 , MgAl 2 o 4 , MgO, ZrO 2 any of the. The catalyst prepared by the present invention can be used for the reaction of methane and carbon dioxide reforming to produce synthesis gas. The h-BN ultra-thin coating can greatly enhance the thermal conductivity of the oxide carrier and improve the heat transfer efficiency around the Ni particles; the CO in the reaction atmosphere 2 and CH 4 It can interact with the defect-rich h-BN layer, which can partially wrap Ni particles and prevent them from sintering, and the B element can also modify Ni particles in real time, greatly improving its anti-carbon deposition performance. The catalyst simultaneously solves the problems of carbon deposition and sintering of metal nanoparticles during the reaction, has a simple preparation method and has wide application prospects.
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Description

technical field

[0001] The invention belongs to the field of methane dry gas reforming, and in particular relates to a catalyst for methane dry gas reforming reaction and a preparation method thereof. Background technique

[0002] Methane dry reforming reaction (CH 4 +CO 2 =2CO+2H 2 , Dry Reforming of Methane / DRM) is one of the effective ways to convert and utilize natural gas resources and greenhouse gas carbon dioxide. The synthesis gas produced by the reaction is an important platform molecule for the production of oil products and high value-added chemicals. It is recognized as green and sustainable. Many practitioners are committed to the industrial application of methane dry gas reforming related processes.

[0003] Transition metals and noble metals including Rh, Ru, Pt, Ir, and Ni all have good catalytic activity for DRM reactions, among which Ni-based catalysts have attracted the most attention due to their high activity and low cost. The methane dry reforming p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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