Natural gas hydrogen production plant and method

A hydrogen production device and natural gas technology, applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., can solve problems such as high energy consumption, high cost, complex system, etc., achieve increased reaction temperature, compact equipment design, and reduced energy consumption Effect

Inactive Publication Date: 2009-05-20
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

[0005] In order to overcome the shortcomings of current hydrogen production devices, such as high energy consumption, complex system, and high cost, the present invention designs a low-concentration gaseous hydrocarbon combustion device based on the Chinese invention application number 200710020394. Hydrogen production unit integrating hydrogen and product cooling

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Embodiment Construction

[0020] The specific implementation of the natural gas on-site hydrogen production device and method of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] A kind of natural gas site hydrogen production device and method of the present invention such as figure 1 , figure 2 As shown, it mainly includes a tangential inlet 1, a reverse heat exchanger 2, a tangential outlet 3, a porous medium 4, an electrically heated silicon carbide rod 5, and a reaction coil 6. The surface of the inner layer of the center of the reverse heat exchanger 2 is plated with high-temperature resistant ceramic materials, and the material of the low-temperature heat exchange area of ​​the other outer ring layers is made of stainless steel. The reaction coil 6 is made of materials with excellent thermal conductivity and heat resistance, and is placed in the reverse heat exchanger 2 . The porous medium 4 is formed by stacking ceramic balls with hi...

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Abstract

The invention belongs to the technical field of hydrogen production, and particularly relates to a hydrogen on-spot production device by natural gas and a method thereof. The device mainly comprises a tangential inlet, a reverse heat exchanger, a tangential outlet, a porous medium, an electrically heated silicon carbide rod and a reaction coil, and is characterized in that the external reverse heat exchanger can realize cooling the products and preheating the reacting substances; the effective heat storage of the porous medium arranged in the center of the reverse heat exchanger and the heat preservation of the external reverse heat exchanger can provide a beneficial hot environment for producing pure hydrogen by the schizolysis of the natural gas in the reaction coil; and the electrically heated silicon carbide rod is arranged in the center to preheat the porous medium and start ignition, with convenient operation and high ignition reliability. The hydrogen on-spot production device by natural gas and the method have the advantages of self preheating, self heat preservation, self cooling, simple structure, low energy consumption, stabilization and the like, and can realize pure hydrogen production.

Description

Technical field: [0001] The invention belongs to the technical field of hydrogen production, in particular to an on-site hydrogen production device and method of natural gas. Background technique: [0002] As a clean secondary energy source, hydrogen energy is considered to be one of the most promising energy sources in the future due to its outstanding advantages such as high combustion rate, clean combustion products, and diversified uses; and, fuel cells have high energy conversion efficiency and environmental friendliness have received great attention. As the preferred fuel for fuel cells, hydrogen energy will have broad market prospects in the fields of future transportation and power generation, and will occupy an increasingly important position in the future energy structure. Since hydrogen in nature mostly exists in a combined state, to realize the large-scale application of hydrogen, the problem of hydrogen source must be solved first. Natural gas is the most econ...

Claims

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Application Information

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IPC IPC(8): C01B3/32
Inventor 马培勇林其钊唐志国李永玲何贤钊谢红占
Owner UNIV OF SCI & TECH OF CHINA
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