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Catalytic hydrogen supply system based on organic liquid and hydrogen supply method thereof

A technology of organic liquid and catalyst carrier, applied in the field of hydrogen energy, can solve the problems of poor mechanical properties of graphene carrier, difficulty in long-term industrial application, high catalyst cost, etc., and achieve low catalyst cost, low raw material cost, and hydrogen supply purity high effect

Pending Publication Date: 2022-05-06
DONGFANG HONGSHENG NEW ENERGY APPL TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The selection of relevant catalyst raw materials will inevitably lead to higher catalyst costs
At the same time, the mechanical properties of graphene carriers are poor, and it is difficult to meet the requirements of long-term industrial applications, and its storage safety issues also need attention

Method used

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  • Catalytic hydrogen supply system based on organic liquid and hydrogen supply method thereof
  • Catalytic hydrogen supply system based on organic liquid and hydrogen supply method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0061] S1. Select organic liquid hydrogen supply material: the hydrogen supply material A is a mixture of octadehydrobenzyltoluene and dodecahydrobenzyltoluene, wherein the mass ratio of octadehydrobenzyltoluene to dodecahydrobenzyltoluene The hydrogen supply raw material B is 2-methyldecalin, and the mass ratio of the hydrogen supply raw material A to the hydrogen supply raw material B is 3:1.

[0062] S2. Select a supported hydrogen-donating reaction catalyst: alumina-supported palladium-copper catalyst, denoted as Pd-Cu / Al 2 o 3, wherein the mass content of Pd is 1.8wt%, the mass content of Cu is 10.0wt%, the particle size of the catalyst is 20-60 mesh, and the specific surface area of ​​the catalyst is 182m 2 / g.

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

[...

Embodiment 2

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

[0070] S1. Select the organic liquid hydrogen supply material: the hydrogen supply material A is a mixture of octadehydrobenzyltoluene and dodecahydrobenzyltoluene, wherein the mass ratio of octadehydrobenzyltoluene and dodecahydrobenzyltoluene is The ratio is 4:1, the hydrogen supply raw material B is 2-methyldecalin, and the mass ratio of the hydrogen supply raw material A to the hydrogen supply raw material B is 0.5:1.

[0071] S2. Select supported hydrogen-donating reaction catalyst Pt-Cu / Al 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 Donation 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 ...

Embodiment 3

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

[0079] S1. Select the organic liquid hydrogen supply material: the hydrogen supply material A is a mixture of octadehydrobenzyltoluene and dodecahydrobenzyltoluene, wherein the mass ratio of octadehydrobenzyltoluene and dodecahydrobenzyltoluene is The ratio is 1:2, the hydrogen supply raw material B is 1-methyldecalin, and the mass ratio of the hydrogen supply raw material A to the hydrogen supply raw material B is 1.9:1.

[0080] S2. Select supported hydrogen-donating reaction catalyst Pt-Cu / Al 2 o 3 , wherein the mass content of Pt is 0.9wt%, 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 190m 2 / g.

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

[0082] Firstly, Cu(NO 3 ) 3 ...

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Abstract

The invention discloses a catalytic hydrogen supply system based on organic liquid and a hydrogen supply method thereof.The catalytic hydrogen supply system comprises an organic liquid hydrogen supply material and a hydrogen supply reaction catalyst, and the organic liquid hydrogen supply material is composed of a hydrogen supply raw material A and a hydrogen supply raw material B; wherein the hydrogen supply raw material A is one or two of dodecahydrobenzyltoluene and octadehydrodibenzyltoluene, the mass content of the octadehydrodibenzyltoluene is not more than 80%, and the hydrogen supply raw material B is one or more of decahydronaphthalene, 1-methyl decahydronaphthalene and 2-methyl decahydronaphthalene; the hydrogen-donating reaction catalyst is a supported metal catalyst and comprises a catalyst carrier and a catalyst active metal component. The method solves the problem that a hydrogen supply technology based on an organic liquid material is lacked in the technical field at present, and has the advantages of low raw material cost, large-scale storage and supply states, low-temperature liquid property, low catalyst cost, large hydrogen supply amount, relatively mild reaction process conditions, high hydrogen supply purity and the like.

Description

technical field [0001] The invention relates to the technical field of hydrogen energy, in particular to an organic liquid-based catalytic hydrogen supply system and a hydrogen supply method thereof. Background technique [0002] With the gradual implementation of the carbon neutral strategy, hydrogen has received more and more attention as a clean energy carrier. Although the mass combustion heat of hydrogen is the highest among all common fuels, the density of hydrogen at normal temperature and pressure is the lowest among all gases. Therefore, the efficiency of directly transporting hydrogen by conventional methods is very low. At the same time, hydrogen is also a dangerous chemical, which is flammable and explosive, especially the explosive nature requires the industry personnel to be highly cautious. Therefore, how to store and supply hydrogen safely is an important technical issue in the hydrogen energy industry. Organic liquid hydrogen carrying technology is a techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/00B01J23/89
CPCC01B3/0015B01J23/8926
Inventor 洪正鹏林旭锋商红岩赵世栋
Owner DONGFANG HONGSHENG NEW ENERGY APPL TECH RES INST
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