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

A technology of honeycomb ceramic plate and rare earth catalysis, 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 expensive precious metals, uneconomical feasibility of household gas stoves, and high temperature resistance of transition metals. The performance can not meet the actual requirements and other problems, to achieve the effect of reducing the flame, increasing the stable combustion range, and reducing the ignition temperature

Active Publication Date: 2017-09-22
薄利轩
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  • Abstract
  • Description
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AI Technical Summary

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

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Embodiment 1

[0013] A method for preparing a rare earth catalytic coating on a honeycomb ceramic plate for a far-infrared burner according to the present invention uses a honeycomb ceramic plate as a carrier, and coats nano-cerium oxide on the honeycomb ceramic plate to form a catalytic coating. The preparation method of the present invention uses low-purity nano-scale cerium oxide, a composite rare earth material with low price, as a catalyst, uses a honeycomb ceramic plate as a carrier, reduces the light-off temperature of gas combustion reaction, increases the stable combustion range, improves combustion efficiency, and simultaneously reduces The occurrence of flame-off and tempering phenomena prolongs the service life of ceramic furnace pieces.

[0014] Specifically, coating the 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 oxid...

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Abstract

The invention discloses a method for preparing a rare earth catalytic coating on a honeycomb ceramic plate for a far-infrared burner. The honeycomb ceramic plate is used as a carrier, and nanometer cerium oxide is coated on the honeycomb ceramic plate to prepare the catalytic coating. The preparation method of the present invention uses low-purity nano-scale cerium oxide, a composite rare earth material with low price, as a catalyst, uses a honeycomb ceramic plate as a carrier, reduces the light-off temperature of gas combustion reaction, increases the stable combustion range, improves combustion efficiency, and simultaneously reduces The occurrence of flame-off and tempering phenomena prolongs the service life of ceramic furnace pieces.

Description

technical field [0001] The invention relates to the catalytic combustion technology of an infrared gas cooker, in particular to a method for preparing a rare earth catalytic coating on a honeycomb ceramic plate of a far-infrared burner. Background technique [0002] At present, in the known far-infrared cooker burners, the gas and air are pre-mixed and then completely pre-mixed and flameless catalytic combustion is carried out in the infrared radiation ceramic plate made of special refractory materials. The energy generated by the combustion is converted into infrared rays, and the radiation is transmitted to the cooker. . Catalytic combustion technology has unique advantages in energy saving, pollution elimination and environmental protection. Choosing a suitable catalyst can improve the catalytic effect, thereby improving combustion efficiency, saving gas, and reducing harmful gas emissions. [0003] In natural gas catalytic combustion catalysts, noble metal catalysts, e...

Claims

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Application Information

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