Hydrogen production system and method

A technology of hydrogen production system and hydrogen storage tank, which is applied in the field of hydrogen production, can solve the problems of poor stability and low efficiency, achieve stable heat transfer, high heat transfer efficiency, and improve efficiency and stability

Pending Publication Date: 2017-10-24
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a hydrogen production system and its method, which solves the problems of low efficiency and poor stability caused by using molten salt as a heat transfer medium in the prior art

Method used

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  • Hydrogen production system and method

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Experimental program
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Effect test

Embodiment 1

[0052] like figure 1 and Figure 4As shown, the present embodiment adopts the method that methane reacts with water to generate hydrogen. The heat collecting mechanism 1 also includes a liquid metal pump 15 and a liquid metal liquid storage tank 13, the liquid metal pump 15 and the liquid metal liquid storage tank 13 are both arranged on the liquid metal pipeline 12, and the hydrogen production mechanism 3 includes Reactor 17.

[0053] Working process: The heat collector collects the liquid metal that transfers heat to the liquid metal pipe, using the liquid metal as the heat transfer medium, the liquid metal is passed into the heat exchanger, and methane and water are passed into the reactor, and the second heat exchange tube Hydrogen and carbon monoxide are produced after heat exchange of liquid metal, and the hydrogen and carbon monoxide need to be separated later.

[0054] Among them, the use of trough, dish or tower heat collection systems can obtain temperatures as hi...

Embodiment 2

[0056] This embodiment is basically the same as Embodiment 1. For the sake of brevity, in the description process of this embodiment, the same technical features as Embodiment 1 will not be described, and only the differences between this embodiment and Embodiment 1 will be described:

[0057] like figure 2 and Figure 5 As shown, this embodiment adopts the method that metal and water react to generate hydrogen. Its structure includes a gas storage tank 19, and the hydrogen production mechanism 3 also includes a metal storage tank 16 and a hydrogen storage tank 18. One end of the metal storage tank 16, the gas storage tank 19 and the reactor 17 are all connected to the heat exchanger. 2, the other end of the metal storage tank 16 is connected to the hydrogen storage tank 18 through the reactor 17, and the liquid metal pipeline 12 is connected to the second heat exchange tube of the heat exchanger 2. Heat pipe connection.

[0058] Working process: the heat collector collect...

Embodiment 3

[0062] This embodiment is basically the same as Embodiment 2. For the sake of brevity, in the description process of this embodiment, the same technical features as Embodiment 2 will not be described, and only the differences between this embodiment and Embodiment 2 will be described:

[0063] like image 3 and Image 6 As shown, this embodiment adopts the method that methane reacts with metal oxides to generate metal and fuel gas, and the metal reacts with water to generate hydrogen. Its structure is that the heat exchanger 2 is also provided with a methane inlet 20 .

[0064] Working method: The heat collector collects the liquid metal that transfers heat to the liquid metal pipe, using the liquid metal as the heat transfer medium, the liquid metal is passed into the heat exchanger, the reactor is passed into water, and the first heat exchange tube is filled with metal oxides and methane, after exchanging heat with the liquid metal in the second heat exchange tube, metal a...

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PUM

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Abstract

The invention relates to the field of hydrogen production, and discloses a hydrogen production system. The hydrogen production system comprises a heat collection mechanism, a hydrogen production mechanism and a heat exchanger, wherein the heat collection mechanism comprises a heat collector and a liquid metal pipeline, the liquid metal pipeline is connected with a heat collector, the heat collector is used for absorbing heat, and the liquid metal pipeline is filled with liquid metal; and the heat exchanger is respectively connected with the hydrogen production mechanism and the liquid metal pipeline. The invention also discloses a hydrogen production method. The hydrogen production method comprises the following steps: the heat collector collects heat and transfers the heat to liquid metal of the liquid metal pipeline; and the liquid metal is introduced into the heat exchanger to provide heat for the reaction of the hydrogen production mechanism. The liquid metal is used for replacing molten salt as a heat transfer medium, has lower melting point and higher boiling point, can be kept at a liquid state in a large temperature range, does not have phase change and is stable in heat transfer; the liquid metal has the heat conductivity which is far higher than that of nonmetal cooling agents such as air and water and is high in heat transfer efficiency; the mobility is good; and the efficiency and the stability of the hydrogen production system can be improved.

Description

technical field [0001] The invention relates to the field of hydrogen production, in particular to a hydrogen production system and a method thereof. Background technique [0002] Today's fossil energy supply situation is increasingly severe, and the use of fossil energy forces the ecological environment to be continuously destroyed. The development and utilization of renewable energy has become the only way for my country to achieve sustainable energy development. Solar energy resources are clean, pollution-free, and have large reserves, but they are characterized by dispersion, instability, and discontinuity. Converting solar energy into chemical energy can solve the problems of solar energy storage, transportation, and space constraints. [0003] As a clean energy, hydrogen energy is considered to be the most ideal bridge connecting fossil energy and renewable energy. The development of efficient and low-cost solar hydrogen production technology has become an internatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/34C01B3/10C01B3/02C01B13/02
CPCC01B3/02C01B3/105C01B3/34C01B13/0203C01B2203/1241C01B2203/0833Y02E60/36Y02P20/10
Inventor 张旭东邓中山刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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