CO selective methanation monolithic catalyst and preparation method thereof

A monolithic catalyst, selective technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. The catalyst has the problems of low reaction temperature and high content of precious metals, so as to achieve the effect of improved catalytic activity and stability, good mechanical strength and high catalytic performance
CN101607199AActive Publication Date: 2009-12-23HANERGY TECH
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
HANERGY TECH
Publication Date
2009-12-23

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Abstract

The invention discloses a CO selective methanation monolithic catalyst and a preparation method thereof, in particular relates to a CO selective methanation monolithic catalyst using nanometer cerium-zirconium composite oxide as a carrier and a preparation method thereof. The catalyst comprises an active ingredient Ru, a porous material matrix and the nanometer cerium-zirconium composite oxide carrier, wherein the mol ratio of Ce to Zr is 1-36:6; the coating quantity of the nanometer cerium-zirconium composite oxide is 6-30 wt % of that of the porous material matrix; the content of Ru is 0.2-2 wt % of that of the catalyst; and the particle diameter of the nanometer cerium-zirconium composite oxide carrier is 5-20nm. The CO selective methanation monolithic catalyst has good activity and high strength, has high selectivity in the whole reaction temperature area, greatly prevents the unnecessary consumption of hydrogen in reformed gas, and has simple preparation technology and relativelylow cost.
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Description

technical field

[0001] The invention relates to a monolithic catalyst for CO selective methanation and a preparation method thereof, in particular to a monolithic catalyst for CO selective methanation with nano-cerium-zirconium composite oxide as a carrier and a preparation method thereof. Background technique

[0002] Proton Exchange Membrane Fuel Cell (PEMFC) is a power generation device that directly converts chemical energy into electrical energy through electrochemical reactions. Compared with traditional power generation devices, it has high energy conversion efficiency, no pollution, low noise, and adaptability With the advantages of different power requirements, it has broad application prospects as a fixed power supply (such as a power station) and a mobile power supply for electric vehicles, submarines, aerospace, etc. One form of energy. As the fuel of the PEMFC system, hydrogen mainly comes from the reforming reaction of methanol or natural gas, so 2-15% CO will...

Claims

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