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A kind of aluminum water reaction continuous hydrogen production device and method

A technology of aluminum water reaction and reactor, which is applied in the direction of sustainable manufacturing/processing, hydrogen production, climate sustainability, etc. It can solve the problems of inability to ensure continuous operation of the device, high cost of hydrogen production, and inability to realize the recycling of working fluid, etc. question

Active Publication Date: 2020-10-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] CN104276541A has developed a controllable hydrogen device based on the reaction of aluminum alloy and water. The device uses its own pressure to adjust the hydrogen generation and hydrogen production rate, but it cannot realize the recycling of the working fluid and produces a large amount of waste working fluid. The cost of hydrogen production is too high
[0006] CN103482567A has developed a continuous hydrogen production device and its operating method, which ensures the continuity of the hydrogen production feed process, but cannot guarantee the continuous operation of the entire device

Method used

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  • A kind of aluminum water reaction continuous hydrogen production device and method

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Comparison scheme
Effect test

Embodiment 1

[0027] Continuously add 1mol / L sodium hydroxide solution into the reactor 1 through the lye tank 7; add aluminum powder into the reactor through the aluminum powder bin 10 at a rate of 20g / min; generate hydrogen in the reactor, and control the hydrogen through the valve 13 The rate of entering the collection device; after 5 minutes of reaction, open the valve 2, and the reaction waste liquid enters the waste liquid tank 3; The volume ratio of aluminate solution to methanol aqueous solution is 1:1~1:3, and the methanol aqueous solution and aluminum hydroxide of alkali are produced in the waste liquid tank, and the aluminum hydroxide settles at the bottom of the waste liquid tank in the form of precipitation; the waste liquid tank After the internal liquid level is higher than the outlet, start the pump 4, and the methanol aqueous solution of alkali enters the evaporating tank 5; control the reaction temperature of the evaporating tank at 65~70°C; methanol vapor is generated in t...

Embodiment 2

[0029] Continuously add 1.5mol / L sodium hydroxide solution into the reactor 1 through the lye tank 7; add aluminum powder into the reactor through the aluminum powder bin 10 at a rate of 30g / min; generate hydrogen in the reactor and control it through the valve 13 The rate at which hydrogen gas enters the collection device; after 5 minutes of reaction, open the valve 2, and the reaction waste liquid enters the waste liquid tank 3; after 5 minutes, continuously add 70wt% methanol solution to the waste liquid tank 3 through the formaldehyde tank 15 to ensure The volume ratio of the metaaluminate solution to the aqueous methanol solution is 1:1~1:3, and the methanol aqueous solution and aluminum hydroxide of the alkali are produced in the waste liquid tank, and the aluminum hydroxide settles at the bottom of the waste liquid tank in the form of precipitation; the waste liquid After the liquid level in the tank is higher than the outlet, start the pump 4, and the methanol aqueous s...

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Abstract

The invention provides a device and a method for continuously producing hydrogen by means of an aluminum-water reaction. The device comprises an aluminum powder storage, a reactor, a waste liquid tank, an alkali liquor tank, a methanol tank and an evaporation tank, wherein the bottom of the aluminum powder storage is connected with the top of a rector by mans of an aluminum powder feed pipeline and a valve; the top of the reactor is separately connected with an alkali liquor feed pipeline and a hydrogen discharge pipeline; the bottom of the reactor is connected with the top of the waste liquidtank by means of a pipeline and a valve, the lower part of the waste liquid tank is connected with the middle upper part of the evaporation tank by means of a pipeline and a pump, the top of the evaporation tank is connected with the top of the methanol tank by means of a pipeline, the top of the methanol tank is connected with a new methanol feed pipeline, and the bottom of the methanol tank isconnected with the top of the waste liquid tank by means of a pipeline and a valve; the bottom of the evaporation tank is connected with the middle upper part of the alkali liquor tank by means of a pipeline and a pump; the bottom of the alkali liquor tank is connected with the top of the reactor by means of a pipeline and a valve, and the top of the alkali liquor tank is connected with a new alkali liquor feed pipeline. The device provided by the invention has the characteristics of being simple in structure, being capable of stably producing the hydrogen, adopting recycled working fluid, saving energy and reducing consumption.

Description

technical field [0001] The invention relates to a continuous hydrogen production device and method. Background technique [0002] The current hydrogen production methods mainly include water electrolysis hydrogen production, fossil fuel hydrogen production and biological hydrogen production. However, these methods have disadvantages, such as high cost and serious environmental pollution. The raw materials for hydrogen production by electrolysis of water come from a wide range of sources, and the cost is low. However, the power source of hydrogen production by electrolysis of water is electric energy, and its hydrogen production efficiency is only 75% to 85%, and the energy consumption is very high. Fossil fuel hydrogen production is the main method of industrial hydrogen production at present. Its principle is to use fossil fuels such as petroleum, natural gas or coal to produce hydrogen by catalytic reforming. Among them, hydrogen production from methane is the most widel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/08
CPCC01B3/08Y02E60/36Y02P20/10
Inventor 王昊辰王海波
Owner CHINA PETROLEUM & CHEM CORP