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A method and equipment for producing hydrogen by solar photothermochemical splitting of water

A photothermal chemistry, solar energy concentrating technology, applied in chemical instruments and methods, hydrogen production, inorganic chemistry, etc., can solve the problems of high reaction temperature, low hydrogen yield, etc., to achieve simple reaction, good economic benefits, high temperature low effect

Active Publication Date: 2020-12-25
JIANGSU TIANYI ULTRA FINE METAL POWDER
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Problems solved by technology

[0048] The above hydrogen production method has high reaction temperature and low hydrogen yield

Method used

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  • A method and equipment for producing hydrogen by solar photothermochemical splitting of water
  • A method and equipment for producing hydrogen by solar photothermochemical splitting of water
  • A method and equipment for producing hydrogen by solar photothermochemical splitting of water

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Embodiment Construction

[0080] 1. Add 20mol of water into a 4000ml tank-type solar vacuum high-temperature endothermic reactor, compress 20mol of carbon monoxide into the above-mentioned tank-type solar vacuum high-temperature endothermic reactor, and use a disc-shaped solar focusing collector to react the vacuum high-temperature endothermic reaction The tank is heated to 380°C, and the pressure of the vacuum high-temperature endothermic tank is 26Mpa. At this point the reaction is complete.

[0081] Remove or close the solar concentrating heat collector, release the reaction product in the solar vacuum high-temperature endothermic reactor into another airtight vacuum container, and obtain 19.6 mol of hydrogen and 19.7 gmol of carbon dioxide after cooling and separation.

[0082] 2. Add 320g of iron pentacarbonyl and 200g of water into a vacuum high-temperature heat-absorbing tube with a volume of 2600ml, and heat the vacuum high-temperature heat-absorbing reactor to 380°C with a trough-type solar fo...

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Abstract

The invention relates to a method and equipment for producing hydrogen through solar photothermal chemical water decomposition. A solar concentrator collector is used as a heat source, and water and carbonyl (CO) or carbonyl metal complexes are used as raw materials; water and CO or one or more carbonyl metal complexes are put into a solar vacuum high temperature heat-absorbing tube (tank), the solar vacuum high temperature heat-absorbing tube (tank) absorbs solar energy concentrated by the solar concentrator collector, the temperature rises to the critical temperature of water, and the pressure also rises to the critical pressure of water along with the temperature rise; and in the solar vacuum high temperature heat-absorbing tube (tank), a reduction reaction is performed on water in thecritical state and CO or the carbonyl metal complexes to produce hydrogen, metal or oxide micronanoparticles thereof, carbon dioxide or carbonate compounds (calcium carbonate, sodium carbonate, ammonium bicarbonate and the like). The method and equipment are low-cost solar hydrogen-producing polygeneration technology and equipment respectively.

Description

technical field [0001] The invention relates to a method and equipment for producing hydrogen by using solar photothermochemical decomposition of water, belonging to the field of new energy. Specifically, the present invention utilizes a solar concentrating heat collector to heat water to a critical state, and the critical water undergoes a reduction reaction with carbonyl (CO) or metal carbonyl complexes to produce hydrogen, metal or its oxide micro-nano particles, Carbon dioxide polygeneration technology and equipment. Background technique [0002] With the development of human society, the practical role and strategic importance of energy is self-evident. Searching for sustainable and abundant clean energy is the basis for the survival and development of human society. Even if the greenhouse effect caused by the emission of carbon dioxide is not considered, the limited and non-renewable nature of fossil energy is enough to force human beings to look for alternative ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/14C01B3/06C01B32/50C01G49/06C01G49/08C01B32/60
CPCC01B3/06C01B3/14C01G49/06C01G49/08Y02E60/36Y02P20/133
Inventor 高为鑫桂宝桃王彬
Owner JIANGSU TIANYI ULTRA FINE METAL POWDER
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