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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 problems such as high melting point and difficult dehydrogenation

Active Publication Date: 2017-06-13
WUHAN HYNERTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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Examples

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Effect test

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] N-n-Propylcarbazole(wt%) N-Ethylcarbazole (wt%) Eutectic point of hydrogen storage system (°C) Example 1 40 60 24 Example 2 50 50 15 Example 3 60 40 13 Example 4 70 30 29

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] N-n-Propylcarbazole(wt%) N-Methylindole (wt%) Eutectic point of hydrogen storage system (°C) Example 5 10 90 -5.2 Example 6 30 70 -4.6 Example 7 50 50 -4.3 Example 8 70 30 -4.2

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] N-n-Propylcarbazole(wt%) N-Ethylcarbazole (wt%) N-Methylindole (wt%) Eutectic point of hydrogen storage system (°C) Example 9 6 4 90 -4.1 Example 10 12 8 80 -4.3

[0048] Example 11 18 12 70 -4.1 Example 12 24 16 60 -4.1

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Abstract

The invention discloses a liquid hydrogen storage system. The liquid hydrogen storage system includes at least two different hydrogen storage components, the hydrogen storage components are unsaturated aromatic hydrocarbons or heterocyclic unsaturated compounds, and at least one hydrogen storage component is a low melting point compound with a melting point lower than 80°C . The liquid hydrogen storage system is actually a multi-component mixed liquid condensed heterocyclic aromatic hydrocarbon hydrogen storage system. In the present invention, after mixing two or more condensed heterocyclic unsaturated compounds, the mixed system formed has a eutectic point which is at least lower than the melting point of one of the components. In two or more hydrogen storage components, at least one low-melting compound with its own melting point less than 80°C is selected, so that the eutectic point of the hydrogen storage system drops to around room temperature, thereby obtaining a hydrogen storage that is liquid at room temperature system.

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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Patent Type & Authority Patents(China)
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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