Mini reforming hydrogen-preparation reactor

A technology of hydrogen production reactor and micro-reforming, which is applied in the field of hydrogen source system to achieve the effects of small pressure drop, uniform temperature distribution and uniform gas flow distribution

Inactive Publication Date: 2007-10-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

Motorola announced that it will temporarily suspend the development of direct methanol fuel cells for portable devices, and instead devote itself to the development of methanol reforming micro fuel cells (RHFC), but it is still in the highly confidential stage of research and development

Method used

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  • Mini reforming hydrogen-preparation reactor
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Embodiment Construction

[0032] The micro-reforming hydrogen production reactor (Fig. 1) of the present invention can use natural gas, alcohols such as methanol, and hydrocarbons such as gasoline as raw materials. In order to briefly explain some situations in the actual implementation process, methanol and water are selected as raw materials to illustrate. The chemical reaction is mainly carried out in the combustion chamber and the reforming chamber, and the combustion zone mainly carries out the combustion reaction:

[0033] CH 3 Oh (g) +1.5O 2(g) →CO 2(g) +2H 2 o (g)

[0034] When the whole reaction system is running stably, the raw material of the combustion chamber can come from part of the reformed gas produced by the reforming chamber, and when integrated with the fuel cell system, use its anode tail gas as the fuel gas. Its main reaction is:

[0035] h 2 +1 / 2O 2 →H 2 o

[0036] When the present invention operates in conjunction with a fuel cell, the ra...

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Abstract

A minitype reactor for reforming hydrogen, which main part has telescopefeed structure, comprising a burning offgas heat exchange cavity, a reforming offgas heat exchange cavity, a burning cavity and a reforming cavity in sequence from outside; a fuel inlet is arranged communicating with the burning cavity; a reforming material inlet is arranged communicating with a built-in cavity of the burning offgas heat exchange cavity; reforming material liquid is preheated in the built-in cavity of the burning offgas heat exchange cavity then supplied into a built-in cavity of the reforming offgas heat exchange cavity; reforming material liquid flows in built-in cavities, burning offgas and reforming offgas exchange heat via tube wall of built-in cavities and flow oppose to reforming material liquid; a reforming air inlet is arranged, mixture gas of reforming air mixing with gas phase vaporized in the reforming offgas heat exchange cavity is supplied into the reforming cavity to process reforming hydrogen reaction. The catalytic burning reaction and reforming reaction of the invention has advantages of temperature easy to be control, stable running, easy operation; compact structure; the invention is suit for hydrogen source system of 10-500 W fuel cell minitype electrical source.

Description

technical field [0001] The invention relates to a miniature reforming hydrogen production reactor, which can be widely used in coupled reaction systems with strong heat release and strong heat absorption, and is especially suitable for the hydrogen source of 10-500W fuel cell micro power supply system. Background technique [0002] Hydrogen energy and fuel cells, as clean and efficient energy utilization technologies in the 21st century, have become global research hotspots. The preliminary work in the world is mainly carried out around fuel cell vehicles. Due to their technical difficulty, high cost and huge investment in infrastructure, they cannot enter the market for practical application in a short period of time. However, if it is used as a decentralized fuel cell power station or a micro power source, the technical difficulty and investment will be greatly reduced, and it has broad application prospects in civilian and military applications. It is currently recognize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/38
Inventor 王树东潘立卫穆昕袁中山张纯希
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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