The chemical element hydrogen (H-Hydrogen), which is the first in the periodic table, is the smallest of all atoms. It is known that hydrogen atoms and oxygen atomize water, but hydrogen is usually hydrogen (H2), which is a colorless, odorless, highly combustible diatomic gas. Hydrogen is the lightest gas. At 0 degrees Celsius and one atmosphere of pressure, there is only 0.0899 grams of hydrogen per liter - which is equivalent to only two-nineths of the same volume of air. Hydrogen is the most common element in the universe. Hydrogen and its isotopes account for 84% of the total mass of the sun, and 75% of the mass of the universe is hydrogen.
Hydrogen has high volatility and high energy. It is an energy carrier and fuel, and hydrogen is also widely used in industrial production. Today, the industry uses 550 billion cubic meters of hydrogen per year. Hydrogen is used together with other materials to make ** and fertilizers. It is also used in gasoline refining, glass polishing, gold welding, weather balloon detection, and the food industry. Liquid hydrogen can be used as a rocket fuel because the liquefaction temperature of hydrogen is -253°C.
Hydrogen, like gasoline and natural gas, is highly flammable. It can be ignited when the air content is 4% to 96%, so it can be used as a fuel. Hydrogen plus oxygen generates heat after spark ignition. The residual product after combustion is pure water, so hydrogen is known as a zero-emission fuel. The water produced by its combustion can be collected or discharged directly into the atmosphere in the form of water vapor. The water produced by the combustion is exactly the same amount of water consumed by hydrogen production. So from this perspective, hydrogen is inexhaustible.
Although hydrogen is inexhaustible and inexhaustible, because of its secondary energy sources, the hydrogen content on the earth is minimal, and it can only be obtained from other energy sources. When hydrogen is produced by water electrolysis, the by-product of hydrogen production is only oxygen. When natural gas, oil, or coal is used to make hydrogen, carbon dioxide and other greenhouse gases are inevitably produced. Therefore, using hydrogen energy as a fuel can only solve half of the entire environmental problem. In fact, from the preparation of hydrogen to the use of hydrogen, hydrogen plays the role of energy carrier. If the hydrogen problem can be solved completely in the preparation of hydrogen, then the entire hydrogen energy utilization process will become a true zero pollution process.
Hydrogen has high volatility and high energy. It is an energy carrier and fuel, and hydrogen is also widely used in industrial production. Today, the industry uses 550 billion cubic meters of hydrogen per year. Hydrogen is used together with other materials to make ** and fertilizers. It is also used in gasoline refining, glass polishing, gold welding, weather balloon detection, and the food industry. Liquid hydrogen can be used as a rocket fuel because the liquefaction temperature of hydrogen is -253°C.
Hydrogen, like gasoline and natural gas, is highly flammable. It can be ignited when the air content is 4% to 96%, so it can be used as a fuel. Hydrogen plus oxygen generates heat after spark ignition. The residual product after combustion is pure water, so hydrogen is known as a zero-emission fuel. The water produced by its combustion can be collected or discharged directly into the atmosphere in the form of water vapor. The water produced by the combustion is exactly the same amount of water consumed by hydrogen production. So from this perspective, hydrogen is inexhaustible.
Although hydrogen is inexhaustible and inexhaustible, because of its secondary energy sources, the hydrogen content on the earth is minimal, and it can only be obtained from other energy sources. When hydrogen is produced by water electrolysis, the by-product of hydrogen production is only oxygen. When natural gas, oil, or coal is used to make hydrogen, carbon dioxide and other greenhouse gases are inevitably produced. Therefore, using hydrogen energy as a fuel can only solve half of the entire environmental problem. In fact, from the preparation of hydrogen to the use of hydrogen, hydrogen plays the role of energy carrier. If the hydrogen problem can be solved completely in the preparation of hydrogen, then the entire hydrogen energy utilization process will become a true zero pollution process.