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Liquid hydrogen storage system

A liquid hydrogen storage and system technology, applied in hydrogen, gas/liquid distribution and storage, hydrogen production, etc., can solve the problems of difficult dehydrogenation and high melting point

Active Publication Date: 2015-04-29
WUHAN HYNERTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to provide a liquid hydrogen storage system to solve the problem of difficult dehydrogenation caused by the high melting point of the hydrogen storage system in the prior art

Method used

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Embodiment 1 to 4

[0040] N-n-propylcarbazole (melting point: 48°C) and N-ethylcarbazole (melting point: 70°C) are used as hydrogen storage components and mixed to form a hydrogen storage system. The ratio of the two components and the eutectic point of the hydrogen storage system in each embodiment are as follows:

[0041]

Embodiment 5 to 8

[0043] N-n-propylcarbazole (melting point: 48°C) and N-methylindole (melting point: -29.6°C) are used as hydrogen storage components and mixed to form a hydrogen storage system. The ratio of the two components and the eutectic point of the hydrogen storage system in each embodiment are as follows:

[0044]

Embodiment 9 to 12

[0046] Use N-n-propylcarbazole (melting point: 48°C), N-ethylcarbazole (melting point: 70°C) and N-methylindole (melting point: -29.6°C) as hydrogen storage components, mix to form hydrogen system. The ratio of the three components and the eutectic point of the hydrogen storage system in each embodiment are as follows:

[0047]

[0048] Example 11

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Abstract

The invention discloses a liquid hydrogen storage system. The liquid hydrogen storage system comprises at least two different hydrogen storage components which are unsaturated aromatic hydrocarbons or heterocyclic unsaturated compounds, wherein at least one of the hydrogen storage components is a low-melting-point compound of which the melting point is lower than 80DEG C. The liquid hydrogen storage system actually is a multi-element mixed liquid fused heterocyclic aromatic hydrocarbon type hydrogen storage system. By adopting the liquid hydrogen storage system disclosed by the invention, after two or more types of fused heterocyclic unsaturated compounds are mixed together, a formed mixed system has a eutectic point which is at least lower than the melting point of one of the components. However, at least one type of low-melting-point compound of which the melting point is lower than 80 DEG C is selected from the two or more types of hydrogen storage components to ensure that the eutectic point of the hydrogen storage system is lowered to near room temperature, thereby obtaining a hydrogen storage system which is in a liquid state at room temperature.

Description

technical field [0001] The invention relates to the technical field of hydrogen storage, in particular to a liquid hydrogen storage system. Background technique [0002] As a green energy with abundant reserves, wide sources and high energy density, hydrogen energy has shown good application prospects in fuel cells and replacing fossil fuels. In the actual application process, its storage and transportation are the key. It is even more critical to find efficient, low-cost and large-scale hydrogen storage methods. [0003] The existing hydrogen storage methods can be roughly divided into two types, namely physical methods and chemical methods. Typical physical methods include low-temperature liquid hydrogen storage method and high-pressure gaseous hydrogen storage method. Among them, although the low-temperature liquid hydrogen storage method has a high volumetric energy density, due to the low critical temperature of hydrogen, the liquefaction of hydrogen consumes a lot o...

Claims

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Application Information

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IPC IPC(8): C01B3/02
CPCC01B3/0015C01B3/26C01B2203/0277C01B2203/1064C01B2203/1082C01B2203/1252C01B3/02F17C11/005Y02E60/32
Inventor 程寒松吴金平董媛杨明
Owner WUHAN HYNERTECH CO LTD
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