Organic liquid material for hydrogen storage, catalytic hydrogen storage system and hydrogen storage method

Abstract

The invention discloses an organic liquid material for hydrogen storage, a catalytic hydrogen storage system and a hydrogen storage method.The organic liquid material is composed of a hydrogen storage raw material A and a hydrogen storage raw material B. The hydrogen storage raw material A is one or two of benzyl toluene and dibenzyl toluene, the mass content of the dibenzyl toluene is not larger than 80%, and the mass content of the hydrogen storage raw material B is not larger than 80%. The hydrogen storage raw material B is one or more of naphthalene, 1-methylnaphthalene and 2-methylnaphthalene. The catalytic hydrogen storage system comprises an organic liquid material for hydrogen storage and a hydrogen storage reaction catalyst, and the hydrogen storage reaction catalyst is a supported metal catalyst and comprises a catalyst carrier and a catalyst active metal component. The invention solves the problem of lack of hydrogen storage technology based on organic liquid materials in the technical field at present, and has the advantages of low raw material cost, large scale, low-temperature liquid property, low catalyst cost in the hydrogen storage process, large hydrogen storage capacity, relatively mild hydrogen storage conditions and the like.

Description

technical field

[0001] The invention relates to the technical field of hydrogen energy, in particular to an organic liquid material for hydrogen storage, a catalytic hydrogen storage system and a hydrogen storage method. Background technique

[0002] Hydrogen is a clean energy carrier that can be widely used in hydrogen fuel cells, hydrogen smelting, chemical production and other processes. Hydrogen is not a primary energy source and must be produced directly or indirectly through primary energy sources. In most cases, the location of energy production is separated from the location of consumption. How to store and safely transport the produced hydrogen resources to the point of consumption is a difficult point in the hydrogen energy industry chain. At present, the relatively more promising methods of hydrogen storage are as follows: (1) using high-pressure gas cylinders to store high-pressure hydrogen; (2) using low-temperature containers to store liquid hydrogen; (3) usi...

Examples

Embodiment 1

[0060] This embodiment provides a hydrogen storage method based on an organic liquid catalytic hydrogen storage system, comprising the following steps:

[0061] S1. Select organic liquid materials for hydrogen storage: hydrogen storage raw material A is a mixture of dibenzyltoluene and benzyl toluene, wherein the mass ratio of dibenzyl toluene to benzyl toluene is 1:1, and hydrogen storage raw material B is 2 -Methylnaphthalene, the mass ratio of hydrogen storage raw material A to hydrogen storage raw material B is 3.5:1.

[0062] S2. Select a supported hydrogen storage reaction catalyst: an alumina-supported ruthenium-copper catalyst, denoted as Ru-Cu / Al 2 o 3 , wherein the mass content of Ru is 2.0wt%, the mass content of Cu is 10.0wt%, the particle size of the catalyst is 20-40 mesh, and the specific surface area of ​​the catalyst is 196m 2 / g.

[0063] Hydrogen Storage Reaction Catalyst Ru-Cu / Al 2 o 3 Prepared by impregnation as follows:

[0064] Firstly, Cu(NO 3 ) ...

Embodiment 2

[0069] A hydrogen storage method based on an organic liquid catalytic hydrogen storage system, comprising the following steps:

[0070] S1. Select organic liquid materials for hydrogen storage: hydrogen storage raw material A is a mixture of dibenzyltoluene and benzyl toluene, wherein the mass ratio of dibenzyl toluene to benzyl toluene is 4:1, and hydrogen storage raw material B is 2 -Methylnaphthalene, the mass ratio of hydrogen storage raw material A to hydrogen storage raw material B is 0.5:1.

[0071] S2. Select Pt-Cu / Al supported catalyst for hydrogen storage reaction 2 o 3 -SiO 2 , wherein the mass content of Pt is 2wt%, the mass content of Cu is 28wt%, the particle size of the catalyst is 10-100 mesh, and the specific surface area of ​​the catalyst is 10m 2 / g.

[0072] Hydrogen Storage Reaction Catalyst Pt-Cu / Al 2 o 3 -SiO 2 Prepared by impregnation as follows:

[0073] Firstly, Cu(NO 3 ) 3 As the precursor of the copper component, the copper component is lo...

Embodiment 3

[0078] This embodiment provides a hydrogen storage method based on an organic liquid catalytic hydrogen storage system, comprising the following steps:

[0079] S1. Select organic liquid materials for hydrogen storage: benzyl toluene is selected as hydrogen storage raw material A, 1-methylnaphthalene is selected as hydrogen storage raw material B, and the mass ratio of hydrogen storage raw material A to hydrogen storage raw material B is 0.9:1.

[0080] S2. Select supported hydrogen storage reaction catalyst Pt-Ru-Cu / Al 2 o 3 , wherein the mass content of Pt is 0.3wt%, the mass content of Ru is 1.0wt%, the mass content of Cu is 8.0wt%, the particle size of the catalyst is 200-240 mesh, and the specific surface area of ​​the catalyst is 179m 2 / g.

[0081] Hydrogen Storage Reaction Catalyst Pt-Ru-Cu / Al 2 o 3 Prepared by impregnation as follows:

[0082] Firstly, Cu(NO 3 ) 3 As the precursor of the copper component, the copper component is loaded on the Al 2 o 3 on the ...

technical field

[0001] The invention relates to the technical field of hydrogen energy, in particular to an organic liquid material for hydrogen storage, a catalytic hydrogen storage system and a hydrogen storage method. Background technique

[0002] Hydrogen is a clean energy carrier that can be widely used in hydrogen fuel cells, hydrogen smelting, chemical production and other processes. Hydrogen is not a primary energy source and must be produced directly or indirectly through primary energy sources. In most cases, the location of energy production is separated from the location of consumption. How to store and safely transport the produced hydrogen resources to the point of consumption is a difficult point in the hydrogen energy industry chain. At present, the relatively more promising methods of hydrogen storage are as follows: (1) using high-pressure gas cylinders to store high-pressure hydrogen; (2) using low-temperature containers to store liquid hydrogen; (3) usi...

Examples

Embodiment 1

[0060] This embodiment provides a hydrogen storage method based on an organic liquid catalytic hydrogen storage system, comprising the following steps:

[0061] S1. Select organic liquid materials for hydrogen storage: hydrogen storage raw material A is a mixture of dibenzyltoluene and benzyl toluene, wherein the mass ratio of dibenzyl toluene to benzyl toluene is 1:1, and hydrogen storage raw material B is 2 -Methylnaphthalene, the mass ratio of hydrogen storage raw material A to hydrogen storage raw material B is 3.5:1.

[0062] S2. Select a supported hydrogen storage reaction catalyst: an alumina-supported ruthenium-copper catalyst, denoted as Ru-Cu / Al 2 o 3 , wherein the mass content of Ru is 2.0wt%, the mass content of Cu is 10.0wt%, the particle size of the catalyst is 20-40 mesh, and the specific surface area of ​​the catalyst is 196m 2 / g.

[0063] Hydrogen Storage Reaction Catalyst Ru-Cu / Al 2 o 3 Prepared by impregnation as follows:

[0064] Firstly, Cu(NO 3 ) ...

Embodiment 2

[0069] A hydrogen storage method based on an organic liquid catalytic hydrogen storage system, comprising the following steps:

[0070] S1. Select organic liquid materials for hydrogen storage: hydrogen storage raw material A is a mixture of dibenzyltoluene and benzyl toluene, wherein the mass ratio of dibenzyl toluene to benzyl toluene is 4:1, and hydrogen storage raw material B is 2 -Methylnaphthalene, the mass ratio of hydrogen storage raw material A to hydrogen storage raw material B is 0.5:1.

[0071] S2. Select Pt-Cu / Al supported catalyst for hydrogen storage reaction 2 o 3 -SiO 2 , wherein the mass content of Pt is 2wt%, the mass content of Cu is 28wt%, the particle size of the catalyst is 10-100 mesh, and the specific surface area of ​​the catalyst is 10m 2 / g.

[0072] Hydrogen Storage Reaction Catalyst Pt-Cu / Al 2 o 3 -SiO 2 Prepared by impregnation as follows:

[0073] Firstly, Cu(NO 3 ) 3 As the precursor of the copper component, the copper component is lo...

Embodiment 3

[0078] This embodiment provides a hydrogen storage method based on an organic liquid catalytic hydrogen storage system, comprising the following steps:

[0079] S1. Select organic liquid materials for hydrogen storage: benzyl toluene is selected as hydrogen storage raw material A, 1-methylnaphthalene is selected as hydrogen storage raw material B, and the mass ratio of hydrogen storage raw material A to hydrogen storage raw material B is 0.9:1.

[0080] S2. Select supported hydrogen storage reaction catalyst Pt-Ru-Cu / Al 2 o 3 , wherein the mass content of Pt is 0.3wt%, the mass content of Ru is 1.0wt%, the mass content of Cu is 8.0wt%, the particle size of the catalyst is 200-240 mesh, and the specific surface area of ​​the catalyst is 179m 2 / g.

[0081] Hydrogen Storage Reaction Catalyst Pt-Ru-Cu / Al 2 o 3 Prepared by impregnation as follows:

[0082] Firstly, Cu(NO 3 ) 3 As the precursor of the copper component, the copper component is loaded on the Al 2 o 3 on the ...

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