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Spontaneous combustion type hydrogen-catalysis combustor

A catalytic burner, self-ignition technology, applied in the direction of gas fuel burner, burner, combustion method, etc., can solve the problems of high price, high combustion starting temperature of non-precious metal combustion catalyst, uneconomical large-scale application, etc., to achieve catalytic combustion High efficiency, simple structure, good safety effect

Inactive Publication Date: 2013-11-20
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalysts currently used in the catalytic combustion of hydrogen are mainly noble metal catalysts, such as palladium, platinum and ruthenium, etc. These noble metal catalysts are expensive and uneconomical for large-scale applications
Although there are many non-precious metal combustion catalysts, they are mainly used for the catalytic combustion of natural gas methane, and there are technical problems such as high combustion starting temperature of non-precious metal combustion catalysts and the need for external ignition devices.

Method used

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  • Spontaneous combustion type hydrogen-catalysis combustor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A self-igniting hydrogen catalytic combustor is provided with a hydrogen / air premixer 1 and a drier 2, the drier 2 is equipped with a desiccant, and the desiccant is a porous molecular sieve. The hydrogen and air premixer 2 is connected to the hydrogen catalytic burner 6 through the dryer 3 . The self-ignition hydrogen catalytic burner 6 is equipped with a gas nozzle 3, and the self-ignition hydrogen catalytic burner 6 has a double-layer structure, the first layer is a low-temperature catalytic combustion layer 4, the second layer is a high-temperature catalytic combustion layer 5, and the low-temperature catalytic combustion layer 4 It is installed at the front end of the high-temperature catalytic combustion layer 5, and a separator is arranged between the low-temperature catalytic combustion layer 4 and the high-temperature catalytic combustion layer 5.

[0025] The catalyst of the low-temperature catalytic combustion layer 4 is a combination of Pd and Pt. The catal...

Embodiment 2

[0028] A self-igniting hydrogen catalytic combustor is provided with a hydrogen and air premixer and a drier, the drier is equipped with a desiccant, and the desiccant is porous molecular sieve or silica gel. The hydrogen and air premixer is connected to the hydrogen catalytic burner through the dryer. The self-igniting hydrogen catalytic burner is equipped with a gas nozzle. The self-igniting hydrogen catalytic burner has a double-layer structure. The first layer is a low-temperature catalytic combustion layer, and the second layer is a high-temperature catalytic combustion layer. The low-temperature catalytic combustion layer is installed on the high-temperature catalytic combustion layer. At the front end, a partition is arranged between the low-temperature catalytic combustion layer and the high-temperature catalytic combustion layer.

[0029] The catalyst of the low-temperature catalytic combustion layer is composed of Pd, Pt and Ru. The catalyst carrier is glass fiber f...

Embodiment 3

[0031] A self-igniting hydrogen catalytic combustor is provided with a hydrogen and air premixer and a drier, the drier is equipped with a desiccant, and the desiccant is porous molecular sieve or silica gel. The hydrogen and air premixer is connected to the hydrogen catalytic burner through the dryer. The white-burning hydrogen catalytic burner is equipped with a gas nozzle. The self-igniting hydrogen catalytic burner has a double-layer structure. The first layer is a low-temperature catalytic combustion layer, and the second layer is a high-temperature catalytic combustion layer. At the front end of the layer, a partition is arranged between the low-temperature catalytic combustion layer and the high-temperature catalytic combustion layer.

[0032] The catalyst of the low-temperature catalytic combustion layer is composed of Pd, Pt and Ru. The catalyst carrier is glass fiber felt, nickel foam, graphite powder or A1 2 o 3 pink. The catalyst load of the low-temperature cat...

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Abstract

The invention relates to a spontaneous combustion type hydrogen catalysis combustor, and belongs to the technical field of hydrogen catalysis combustion. The spontaneous combustion type hydrogen catalysis combustor is characterized in that a gas nozzle is installed inside the spontaneous combustion type hydrogen-catalysis combustor, the spontaneous combustion type hydrogen-catalysis combustor is of a double layer structure, the first layer is a low temperature catalysis combustion layer, the second layer is a high temperature catalysis combustion layer, the low temperature catalysis combustion layer is arranged at the front end of the high temperature catalysis combustion layer, and a partition plate is arranged between the low temperature catalysis combustion layer and the high temperature catalysis combustion layer. The spontaneous combustion type hydrogen-catalysis combustor has the advantages of being simple in structure, good in safety, convenient to use, free of external heating for ignition, high in catalytic combustion efficiency, and low in emission, thereby being particularly suitable for being used for heating family houses and work places.

Description

technical field [0001] The invention belongs to the technical field of hydrogen catalytic combustion, in particular to a self-igniting hydrogen catalytic combustor. Background technique [0002] At present, hydrogen is an energy carrier, which can be directly burned to generate heat for residential heating, or generated by fuel cells (FC) or hydrogen internal combustion engines (ICEs) for residential lighting or driving cars, etc. The utilization of hydrogen energy does not produce greenhouse gases, it is a clean energy source, and there is no problem of resource depletion, so it is considered to be an ideal solution to the resource and environmental pressures faced by the current economic and social development process . [0003] The use of hydrogen combustion to obtain heat energy is an important way in the process of hydrogen energy utilization. The combustion of hydrogen is divided into flame combustion and catalytic flameless combustion. Due to the high combustion te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/18
Inventor 黄岳祥陈智孙杏国
Owner CHINA JILIANG UNIV
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