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Hydrogen generator and application thereof

A generator and hydrogen technology, applied in hydrogen, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as adverse effects, increased surface area, and limited improvement effects, and achieve extremely rich economic value, uniform temperature distribution, and good heat transfer The effect of potency

Active Publication Date: 2011-04-20
GREEN HYDROTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] After continuous research, the inventors of the present application found that simply increasing the surface area of ​​the catalyst bed has a limited improvement effect, and excessively increasing the surface area may even produce adverse effects

Method used

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  • Hydrogen generator and application thereof
  • Hydrogen generator and application thereof
  • Hydrogen generator and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1: 200 liters / hour hydrogen production test

[0060] use as figure 1 In the shown cylindrical hydrogen generator 1, aluminum alloy (AI-6061) is used as the first medium forming the hydrogen generator 1, wherein the diameter of the hydrogen generator 1 is about 51 millimeters, the depth is about 50 millimeters, and each channel The shortest distance a between them is about 1 mm. The diameter of the oxidation zone 12 in the center of the hydrogen generator 1 is about 13 millimeters and the depth is about 50 millimeters, and the PBN oxidation catalyst of about 9 grams is filled in the oxidation zone 12; The diameter of the 8 channels of the preheating zone 14 is about 7 mm and a depth of about 50 mm; the diameter of the 16 channels of the recombination zone 16 is about 7 mm and a depth of about 50 mm, and the channels of the recombination zone 16 are filled with about 43 grams of recombination catalyst JM-51.

[0061] Methanol is used as raw material for hydrogen...

Embodiment 2

[0062] Example 2: 200 liters / hour hydrogen production test

[0063] Carry out methanol vapor recombination reaction with the same hydrogen generator and method as in Example 1. But use brass (70% Cu, 30% Zn, thermal conductivity about 121W / m-K) as the first medium constituting the hydrogen generator 1, and adjust the supply rate of methanol in the fuel so that the hydrogen generation rate reaches 200 liters / hour . Measure the temperature distribution of hydrogen generator 1, calculate the thermal efficiency of hydrogen and total methanol, and analyze the carbon monoxide content in the hydrogen-containing mixed gas obtained, and record the results in Table 1.

Embodiment 4

[0070] Example 4: 200 liters / hour hydrogen production test

[0071] use as figure 2 The shown rectangular hydrogen generator 2, wherein aluminum alloy (Al-6061) is used as the first medium forming the hydrogen generator 2, wherein the size of the hydrogen generator 2 is about 55 mm × about 34 mm × about 50 mm, And the shortest distance a between the channels is about 1.5 mm. The pore diameter of the oxidation zone 22 of the hydrogen generating device 2 is about 9 millimeters and the depth is about 50 millimeters, and about 4 grams of PBN oxidation catalyst is filled in the oxidation zone 22; the pore diameter of the preheating zone 24 is about 7 millimeters and the depth is About 50 mm; the channel diameter of the recombination zone 26 is about 9 mm and the depth is about 50 mm, and the channel of the recombination zone 26 is filled with about 29 grams of recombination catalyst JM-51.

[0072] Same as Example 1, methanol and water are used as raw materials for hydrogen prod...

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Abstract

The invention relates to a hydrogen generator and application thereof. The hydrogen generator is formed by a first medium comprising a recombination zone, an oxidation zone and a preheating zone, wherein the recombination zone is used for accommodating a recombination accelerant so as to carry out the steam recombination reaction of a hydrogen-producing raw material to generate hydrogen; the oxidation zone is used for carrying out heat release oxidation reaction so as to provide a heat source, and a first oxidation accelerant exists in the oxidation zone; the heat source provided by the oxidation zone supplies heat energy to the preheating zone and the recombination zone so as to firstly preheat the hydrogen-producing raw material in the preheating zone and subsequently carry out the steam recombination reaction in the recombination zone; first media exist among the recombination zone, the oxidation zone and the preheating zone at the intervals of the shortest distance of at least 0.5mm; and the coefficient (K) of heat conduction of the first media is at least 60W / m-K. The carbon monoxide content of a hydrogen-contained gas mixture prepared by the hydrogen generator is quite low, therefore, the gas mixture can be directly applied to common fuel.

Description

technical field [0001] The invention relates to a hydrogen generator; in particular, it relates to a hydrogen generator providing hydrogen mixed gas with low carbon monoxide content and its application. Background technique [0002] High-purity hydrogen is an important fuel source for many energy conversion devices. For example, a fuel cell known as a "green generator" uses high-purity hydrogen as a fuel to react with oxygen (or air) to generate electricity by directly converting chemical energy into electrical energy. [0003] The current method commonly used to produce hydrogen is steam reforming reaction (steam reforming reaction, SRR), which is to make steam and alcohols (such as methanol, ethanol) or hydrocarbons (such as methane, hexane) in the presence of SRR catalyst The reaction produces the desired hydrogen gas mixture. Wherein, since SRR is an endothermic reaction, a heat source must be provided to satisfy the heat required for the reaction. For example, an exo...

Claims

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Application Information

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IPC IPC(8): C01B3/38C09K5/14
Inventor 雷敏宏陈世忠杨胜渊陈毓麟叶冠廷洪嘉业高玉玲
Owner GREEN HYDROTEC
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