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Catalyst of low-temperature catalytic burning integral type and preparation method thereof

A monolithic catalyst and low-temperature catalysis technology, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of large resistance drop, low combustion temperature, and mass transfer. Poor heat transfer performance and other problems, to achieve the effect of small resistance reduction, high combustion efficiency and low cost

Active Publication Date: 2009-12-30
HANERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its disadvantages are poor mass and heat transfer performance, large resistance drop, low combustion temperature, and high oxygen-alcohol ratio or oxygen-hydrogen ratio during combustion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A low-temperature catalytic combustion monolithic catalyst, including active component Pt, catalyst promoter Co 3 o 4 , cordierite carrier, also includes aluminum glue, aluminum glue is coated on the cordierite carrier; The content of Pt is 1wt% of catalyst, Co 3 o 4 The content in terms of Co is 0.1wt% of the catalyst, the content of aluminum colloid is 4wt% of the catalyst, and the rest are cordierite carriers; the Pt and Co 3 o 4 The molar ratio of Co is 1:1.

[0026] (1) Weigh chloroplatinic acid and cobalt nitrate according to the molar ratio of Pt and Co as 1:1, dissolve them in deionized water, and prepare a 10 mg / ml solution, pipette 25 ml of the solution in a 50 ml beaker, and place in a water bath Heating to 80°C;

[0027] (2) Immerse the previously weighed cordierite coated with aluminum glue in the above solution, shake the beaker gently during the dipping process, so that the solution is evenly impregnated on the cordierite; after 10 minutes, take out ...

Embodiment 2

[0031] A low-temperature catalytic combustion monolithic catalyst, including active component Pt, catalyst promoter MnO 2 , cordierite carrier, also includes aluminum glue, aluminum glue is coated on the cordierite carrier; The content of Pt is 0.1wt% of catalyst, MnO 2 The content of Mn is 0.55wt% of the catalyst, the content of aluminum gel is 10wt% of the catalyst, and the rest are cordierite carriers; the Pt and MnO 2 The molar ratio of Mn is 1:20.

[0032] (1) Weigh platinum nitrate and manganese nitrate according to the molar ratio of Pt and Mn as 1:20, dissolve them in deionized water, prepare a 10mg / ml solution, pipette 25ml of the solution in a 50ml beaker, and heat in a water bath to 80°C;

[0033] (2) Immerse the equal volume of cordierite coated with aluminum glue weighed in advance in the above solution, shake the beaker gently during the dipping process, so that the solution is evenly impregnated on the cordierite; after 5 minutes, take out the impregnated cord...

Embodiment 3

[0037] A low-temperature catalytic combustion monolithic catalyst, including active component Pt, catalyst promoter Fe 2 O, cordierite carrier also includes aluminum glue, and aluminum glue is coated on the cordierite carrier; The content of Pt is 5wt% of catalyzer, Fe 2 The content of O is 1.44wt% of the catalyst in terms of Fe, the content of aluminum colloid is 2wt% of the catalyst, and the rest are cordierite carriers; the Pt and Fe 2 The molar ratio of Fe in O is 1:1.

[0038] (1) Take by weighing chloroplatinic acid and ferrous nitrate according to the molar ratio of Pt and Fe as 1:1, dissolve in deionized water, and prepare a 10mg / ml solution, pipette 25ml of the solution in a 50ml beaker, and place in a water bath Heat to 80°C;

[0039] (2) Immerse the equal volume of cordierite coated with aluminum glue weighed in advance in the above solution, shake the beaker gently during the dipping process, so that the solution is evenly impregnated on the cordierite; after 5 m...

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PUM

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Abstract

The invention discloses a catalyst of a low-temperature catalytic burning integral type and a preparation method thereof. The catalyst comprises the following materials in percentage by weight: 0.1-5 active component Pt, 0.1-5 transition metal oxide as a catalyst additive by metal elements, 2-10 alumina gel, and the balance of porous material substrate, wherein the alumina gel is coated on the porous material substrate, and a mol ratio of a metal element in the Pt to the metal element in the transition metal oxide is 1: (1-20). The catalyst has good activity, high selectivity to methanol, methane, hydrogen, and the like, and has the advantages of low gas firing point, high burning efficiency, low oxygen consumption, good mass and heat transfer performance, reduced resistance, and the like. The preparation method is simple and has lower cost.

Description

technical field [0001] The invention relates to a low-temperature catalytic combustion monolithic catalyst and a preparation method thereof, in particular to a low-temperature catalytic combustion monolithic catalyst with a porous material substrate coated with aluminum glue as a carrier and a preparation method thereof. Background technique [0002] In recent years, the problem of energy and environmental crisis has become increasingly prominent. Proton Exchange Membrane Fuel Cell (PEMFC) has the advantages of high energy conversion efficiency, no pollution, low noise, and adaptability to different power requirements. ) and mobile power sources used in electric vehicles, submarines, aerospace, etc. have broad application prospects, and are considered to be one of the ideal forms of energy efficient, energy-saving, and environmentally friendly in the 21st century. Correspondingly, research on fuel cells and their hydrogen supply systems has also become a hot spot. The PEMFC...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01J23/656B01J23/60H01M4/92
CPCY02E60/50
Inventor 肖钢孙伟华周帅林
Owner HANERGY TECH
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