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Hydrogen Burn Clean
On whether the combustion of hydrogen is clean or not
When the world talks about the combustion of hydrogen, it is said to be clean. Everyone knows that when hydrogen burns, the product is only water, and there is absolutely no harm, so it is the first choice for clean energy.
However, upon closer inspection, the production of hydrogen is not easy. The common electrolysis of water requires a huge amount of electric energy. If the source of this electric energy is mostly thermal power, the indirect carbon emissions are huge. And the equipment, materials, production and maintenance used in the hydrogen production process can also consume resources and energy, and produce many pollutants.
Furthermore, the storage and transportation of hydrogen is also difficult. The molecules of hydrogen are extremely small and easy to leak. And its storage requires harsh conditions of high pressure and low temperature, and the equipment is complicated and expensive. If there is a slight leakage during transportation, hydrogen will escape from the atmosphere. Although it is not like the greenhouse effect caused by carbide, it will also change the atmospheric composition and have an unknown impact on the atmospheric environment.
Although the product of hydrogen combustion is indeed water, it seems clean from the perspective of combustion at the end point. However, looking at the whole process of its production, storage and transportation, its so-called "clean" is not completely pure. Only when the energy for producing hydrogen is completely clean energy, and the storage and transportation technology is greatly improved to solve the series of problems such as leakage, can it be said that the combustion of hydrogen is really clean.
When the world talks about the combustion of hydrogen, it is said to be clean. Everyone knows that when hydrogen burns, the product is only water, and there is absolutely no harm, so it is the first choice for clean energy.
However, upon closer inspection, the production of hydrogen is not easy. The common electrolysis of water requires a huge amount of electric energy. If the source of this electric energy is mostly thermal power, the indirect carbon emissions are huge. And the equipment, materials, production and maintenance used in the hydrogen production process can also consume resources and energy, and produce many pollutants.
Furthermore, the storage and transportation of hydrogen is also difficult. The molecules of hydrogen are extremely small and easy to leak. And its storage requires harsh conditions of high pressure and low temperature, and the equipment is complicated and expensive. If there is a slight leakage during transportation, hydrogen will escape from the atmosphere. Although it is not like the greenhouse effect caused by carbide, it will also change the atmospheric composition and have an unknown impact on the atmospheric environment.
Although the product of hydrogen combustion is indeed water, it seems clean from the perspective of combustion at the end point. However, looking at the whole process of its production, storage and transportation, its so-called "clean" is not completely pure. Only when the energy for producing hydrogen is completely clean energy, and the storage and transportation technology is greatly improved to solve the series of problems such as leakage, can it be said that the combustion of hydrogen is really clean.
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