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Preparation method of honeycomb ceramic plate rare-earth catalytic coating of far-infrared combustor

A honeycomb ceramic plate, rare earth catalysis technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem that the high temperature resistance of transition metals does not meet the actual requirements, and household gas cookers are not economical Feasibility, expensive precious metals and other issues, to achieve the effect of increasing the stable combustion range, reducing the light-off temperature, and reducing the flame separation

Active Publication Date: 2015-04-08
薄利轩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But precious metals are expensive and not economically viable for domestic gas stoves
The high temperature resistance of transition metals cannot meet the actual requirements

Method used

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  • Preparation method of honeycomb ceramic plate rare-earth catalytic coating of far-infrared combustor
  • Preparation method of honeycomb ceramic plate rare-earth catalytic coating of far-infrared combustor
  • Preparation method of honeycomb ceramic plate rare-earth catalytic coating of far-infrared combustor

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Embodiment 1

[0013] According to a method for preparing rare earth catalytic coating of a far-infrared burner honeycomb ceramic plate according to the present invention, a honeycomb ceramic plate is used as a carrier, and nano-cerium oxide is coated on the honeycomb ceramic plate to make a catalytic coating. The preparation method of the present invention uses a relatively low-priced composite rare earth material low-purity nano-level cerium oxide as a catalyst and a honeycomb ceramic plate as a carrier to reduce the ignition temperature of the gas combustion reaction, increase the stable combustion range, improve the combustion efficiency, and reduce The phenomenon of flame separation and tempering prolongs the service life of the ceramic furnace.

[0014] Specifically, coating nano cerium oxide on the honeycomb ceramic plate includes: heating the nano cerium oxide aqueous suspension to 80 to 90 degrees Celsius; immersing the dried honeycomb ceramic plate in the heated nano cerium oxide aqueo...

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Abstract

The invention discloses a preparation method of a honeycomb ceramic plate rare-earth catalytic coating of a far-infrared combustor, wherein a honeycomb ceramic plate is used as a carrier, and nano-cerium oxide is coated on the honeycomb ceramic plate to prepare the catalytic coating. According to the preparation method disclosed by the invention, a composite rare-earth material with a low price, namely low-purity nanoscale cerium oxide, is used as a catalyst, and the honeycomb ceramic plate is used as the carrier, thus lowering the initiation temperature of a gas combustion reaction, increasing a stable combustion range, increasing the combustion efficiency, reducing the generations of flame-out and tempering phenomena, and prolonging the service lives of ceramic furnace sheets.

Description

Technical field [0001] The invention relates to the catalytic combustion technology of infrared gas stoves, in particular to a method for preparing rare earth catalytic coatings on honeycomb ceramic plates of far infrared burners. Background technique [0002] At present, in the well-known far-infrared stove burner, gas and air are premixed in an infrared radiation ceramic plate made of special refractory materials for complete premixing and flameless catalytic combustion. The energy generated by the combustion is converted into infrared rays, and the radiation is transferred to the cookware. . Catalytic combustion technology has unique advantages in saving energy, eliminating pollution and environmental protection. Choosing a suitable catalyst can improve the catalytic effect, thereby increasing the combustion efficiency, saving gas, and reducing harmful gas emissions. [0003] Among natural gas catalytic combustion catalysts, precious metal catalysts, especially Pd-based cataly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10B01J37/02
Inventor 薄利轩
Owner 薄利轩
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