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System and method for photocatalytic hydrogen production

A technology of photocatalysis and photosensitive catalyst, which is applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., can solve the problems of inability to meet the basic needs of clean hydrogen production, utilization of electric energy and consumption of resources, waste of resources, and low efficiency, so as to improve production efficiency. Effects of hydrogen efficiency, avoidance of electric energy, and avoidance of carbon emission problems

Pending Publication Date: 2021-11-05
NINGXIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, technologies such as coal hydrogen production, biomass hydrogen production, and natural gas hydrogen production are booming, but they all face the problem of carbon emissions and cannot meet the basic needs of clean hydrogen production, while photocatalytic and electrocatalytic hydrogen production can avoid the impact of carbon emissions. To fundamentally solve this problem by using
At present, electrocatalytic hydro

Method used

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  • System and method for photocatalytic hydrogen production
  • System and method for photocatalytic hydrogen production

Examples

Experimental program
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Effect test

Embodiment 1

[0087] Utilize the method of the present invention and as figure 1 When the shown system performs photocatalytic hydrogen production on methanol, the mixed liquid of water and methanol is used as the raw material liquid, wherein the content of water is 50wt%; the photosensitive catalyst used is the CoP / TiO obtained in Example 1 of CN105903482A 2 Composite photocatalyst;

[0088] Add 200ml of raw material liquid into the circulating liquid storage tank 2, and after it undergoes photocatalytic hydrogen production, the resulting reaction solution is recycled back to the circulating liquid storage tank 2, until the methanol conversion rate of the liquid in the circulating liquid storage tank 2 reaches 90wt% , the amount of hydrogen produced can reach 1.5ml, and the efficiency of hydrogen production is about 5%; it consumes only solar energy.

Embodiment 2

[0090]Only the following difference with embodiment 1:

Embodiment 3

[0094] Using the method of the present invention and as figure 2 When the shown system performs photocatalytic hydrogen production on methanol, the mixed liquid of water and methanol is used as the raw material liquid, wherein the content of water is 50wt%; the photosensitive catalyst used is the CoP / TiO obtained in Example 1 of CN105903482A 2 Composite photocatalyst;

[0095] Add 200ml of raw material solution to the five circulating liquid storage tanks 2 respectively. After photocatalytic hydrogen production, the resulting reaction liquid is recycled back to the circulating liquid storage tank 2, and the methanol conversion rate of the liquid in the circulating liquid storage tank 2 is Reaching 90wt%, the amount of hydrogen production can reach about 7.5ml, and the efficiency of hydrogen production is about 5%; it consumes only solar energy.

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Abstract

The invention discloses a systems and a method for photocatalytic hydrogen production. The system comprises a circulating liquid storage tank, a circulating pump and a photocatalytic reactor unit which are sequentially connected through a pipeline, wherein the circulating liquid storage tank is used for storing raw material liquid; the circulating pump is used for pumping the raw material liquid from the circulating liquid storage tank to the photocatalytic reactor unit for photocatalytic hydrogen production reaction; the photocatalytic reactor unit comprises at least one photocatalytic reactor group, and the photocatalytic reactor group comprises at least one photocatalytic reactor; the photocatalytic reactor comprises a first liquid storage tank, a catalyst distribution plate, a second liquid storage tank and a steam pocket which are sequentially connected from top to bottom; the steam pocket is arranged at the top of the second liquid storage tank; and a circulating pipeline is also arranged from the second liquid storage tank to the circulating liquid storage tank. According to the system and the method, sunlight can be utilized for photocatalytic reaction to realize methanol hydrogen production, the hydrogen production efficiency and the hydrogen production amount are improved, and unclean energy such as coal is avoided.

Description

technical field [0001] The invention belongs to the field of photocatalytic hydrogen production, and in particular relates to a system and method for photocatalytic hydrogen production. Background technique [0002] In the context of carbon neutrality and carbon peaking, my country's carbon emission pressure is increasing, and hydrogen energy, as an alternative energy source, can meet the needs of national production. At present, technologies such as coal hydrogen production, biomass hydrogen production, and natural gas hydrogen production are booming, but they all face the problem of carbon emissions and cannot meet the basic needs of clean hydrogen production, while photocatalytic and electrocatalytic hydrogen production can avoid carbon pollution. use, so as to fundamentally solve this problem. At present, electrocatalytic hydrogen production has been initially industrialized, but the utilization and consumption of electric energy is also a great waste of resources, whil...

Claims

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Application Information

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IPC IPC(8): C01B3/22
CPCC01B3/22C01B2203/0277C01B2203/1041
Inventor 马保军宋旭东
Owner NINGXIA UNIVERSITY