Shanxian Chemical
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Liquid Hydrogen Properties Applications Production Storage
The theory of liquid hydrogen is slightly
Liquid hydrogen, the liquid state of hydrogen is also. Its characteristics are specific, it has a wide range of uses, and it is related to various fields. It is the quality that attracts attention today.
Liquid hydrogen has special properties. Its density is very small, about one-fourteenth of that of water, but it contains huge energy. When burning, the calorific value is extremely high, and the heat released per kilogram of liquid hydrogen is several times that of common fossil fuels. And the combustion product is only water, clean and unstained, which is very important for environmental protection. Its boiling point is extremely low, about -253 ° C, and it is in an extremely cold state. It requires exquisite techniques for preservation and use.
As for the use, the first is aerospace. In the way of space exploration, rockets need strong power to break through the sky. Liquid hydrogen and liquid oxygen are combined as propellants to provide surging thrust and help rockets soar to the vast universe. Furthermore, in the process of energy transformation, liquid hydrogen is also the key. With the gradual depletion of traditional energy sources, hydrogen energy is clean and efficient, making it the hope of future energy. Liquid hydrogen can be used as an energy storage medium to convert surplus electric energy into hydrogen energy storage, which requires time to release energy, stabilize energy supply, and balance peak and valley differences. And in the field of transportation, hydrogen fuel cell vehicles have emerged. Liquid hydrogen can supply energy for them, drive vehicles to move forward quietly, and zero-emission vehicles are a powerful tool for pollution control and haze reduction.
There are many methods for the production of liquid hydrogen. One is water electrolysis. Electrolysis of water is used to decompose water into hydrogen and oxygen. This process is clean and energy consumption is quite high. The second is fossil fuel reforming, such as natural gas reforming, which can obtain hydrogen, which is accompanied by carbon dioxide. It needs to be properly handled to meet the requirements of environmental protection. The third is biological hydrogen production, which uses microbial metabolism to produce hydrogen. Although it has potential, the technology is not mature and the scale is difficult to expand.
The method of storage is also elegant. Because of its low boiling point, a low-temperature insulated container is required. Common is a double-layer vacuum insulated storage tank wrapped in multiple layers of thermal insulation material to reduce heat transfer and keep liquid hydrogen at a low temperature. However, during the storage process, there is still evaporation loss, which is called the "daily evaporation rate". Reducing this rate is the priority of scientific research. Or develop new materials, or optimize the structural design, and strive to reduce and increase efficiency.
Liquid hydrogen, this magical thing, in the process of technological progress and energy revolution, must play an important role, leading mankind to a new era and opening up a new era of clean and efficient energy utilization.
Liquid hydrogen, the liquid state of hydrogen is also. Its characteristics are specific, it has a wide range of uses, and it is related to various fields. It is the quality that attracts attention today.
Liquid hydrogen has special properties. Its density is very small, about one-fourteenth of that of water, but it contains huge energy. When burning, the calorific value is extremely high, and the heat released per kilogram of liquid hydrogen is several times that of common fossil fuels. And the combustion product is only water, clean and unstained, which is very important for environmental protection. Its boiling point is extremely low, about -253 ° C, and it is in an extremely cold state. It requires exquisite techniques for preservation and use.
As for the use, the first is aerospace. In the way of space exploration, rockets need strong power to break through the sky. Liquid hydrogen and liquid oxygen are combined as propellants to provide surging thrust and help rockets soar to the vast universe. Furthermore, in the process of energy transformation, liquid hydrogen is also the key. With the gradual depletion of traditional energy sources, hydrogen energy is clean and efficient, making it the hope of future energy. Liquid hydrogen can be used as an energy storage medium to convert surplus electric energy into hydrogen energy storage, which requires time to release energy, stabilize energy supply, and balance peak and valley differences. And in the field of transportation, hydrogen fuel cell vehicles have emerged. Liquid hydrogen can supply energy for them, drive vehicles to move forward quietly, and zero-emission vehicles are a powerful tool for pollution control and haze reduction.
There are many methods for the production of liquid hydrogen. One is water electrolysis. Electrolysis of water is used to decompose water into hydrogen and oxygen. This process is clean and energy consumption is quite high. The second is fossil fuel reforming, such as natural gas reforming, which can obtain hydrogen, which is accompanied by carbon dioxide. It needs to be properly handled to meet the requirements of environmental protection. The third is biological hydrogen production, which uses microbial metabolism to produce hydrogen. Although it has potential, the technology is not mature and the scale is difficult to expand.
The method of storage is also elegant. Because of its low boiling point, a low-temperature insulated container is required. Common is a double-layer vacuum insulated storage tank wrapped in multiple layers of thermal insulation material to reduce heat transfer and keep liquid hydrogen at a low temperature. However, during the storage process, there is still evaporation loss, which is called the "daily evaporation rate". Reducing this rate is the priority of scientific research. Or develop new materials, or optimize the structural design, and strive to reduce and increase efficiency.
Liquid hydrogen, this magical thing, in the process of technological progress and energy revolution, must play an important role, leading mankind to a new era and opening up a new era of clean and efficient energy utilization.
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