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Hydrogen Permeation in Chemical Engineering
On Hydrogen Permeation in Chemical Industry
Chemical industry is involved in a variety of issues. Among them, the appearance of hydrogen infiltration is quite critical, which is related to the quality of the process, the quality of the product, and even the safety of the equipment.
Hydrogen is a light and clear body. It is widely used in the chemical industry. However, it is lively and can often penetrate into various materials, causing a series of changes. For metal materials, hydrogen infiltration can cause metal embrittlement. Metals are originally strong and tough, but once hydrogen atoms quietly penetrate into the lattice gap, they are like silverfish insects eating wood, weakening the bonding force between metal atoms. Over time, the toughness and ductility of the metal gradually lose, and the brittleness increases sharply. When stressed, cracks are prone to occur, eventually breaking, endangering the stable operation of the equipment.
Looking at the chemical production process, the shadow of hydrogen permeation can be seen in many places. Such as the hydrogenation reaction process, under high temperature and high pressure, hydrogen molecules can be dissociated into hydrogen atoms, and their shape is tiny, which can pass through the microscopic pores and grain boundaries of the material and penetrate deep into the material. If the equipment is improperly selected or protective measures are not taken, the harm of hydrogen permeation will quickly appear.
To solve the dilemma of hydrogen permeation, we must take multiple measures. First, carefully select suitable materials. In view of the hydrogen environment, choose metal alloys with excellent hydrogen penetration resistance, or apply protective coatings on the surface of the material, such as ceramic coatings, metal oxide coatings, etc., as if to put a strong armor on the material to block the intrusion of hydrogen atoms. Second, optimize the process conditions. Reasonable regulation of reaction temperature and pressure to avoid excessive activation of hydrogen atoms and reduce the chance of their penetration into the material. Third, build a monitoring system. With modern detection technology, such as electrochemical detection method, thermal desorption analysis method, etc., real-time insight into the penetration of hydrogen in the material, in order to detect hidden dangers in time and take countermeasures.
In the chemical industry, although hydrogen infiltration is a hidden concern, if it is treated with scientific methods and rigorous treatment, it will be able to avoid danger, ensure the stability of chemical production, and promote the vigorous development of the industry.
Chemical industry is involved in a variety of issues. Among them, the appearance of hydrogen infiltration is quite critical, which is related to the quality of the process, the quality of the product, and even the safety of the equipment.
Hydrogen is a light and clear body. It is widely used in the chemical industry. However, it is lively and can often penetrate into various materials, causing a series of changes. For metal materials, hydrogen infiltration can cause metal embrittlement. Metals are originally strong and tough, but once hydrogen atoms quietly penetrate into the lattice gap, they are like silverfish insects eating wood, weakening the bonding force between metal atoms. Over time, the toughness and ductility of the metal gradually lose, and the brittleness increases sharply. When stressed, cracks are prone to occur, eventually breaking, endangering the stable operation of the equipment.
Looking at the chemical production process, the shadow of hydrogen permeation can be seen in many places. Such as the hydrogenation reaction process, under high temperature and high pressure, hydrogen molecules can be dissociated into hydrogen atoms, and their shape is tiny, which can pass through the microscopic pores and grain boundaries of the material and penetrate deep into the material. If the equipment is improperly selected or protective measures are not taken, the harm of hydrogen permeation will quickly appear.
To solve the dilemma of hydrogen permeation, we must take multiple measures. First, carefully select suitable materials. In view of the hydrogen environment, choose metal alloys with excellent hydrogen penetration resistance, or apply protective coatings on the surface of the material, such as ceramic coatings, metal oxide coatings, etc., as if to put a strong armor on the material to block the intrusion of hydrogen atoms. Second, optimize the process conditions. Reasonable regulation of reaction temperature and pressure to avoid excessive activation of hydrogen atoms and reduce the chance of their penetration into the material. Third, build a monitoring system. With modern detection technology, such as electrochemical detection method, thermal desorption analysis method, etc., real-time insight into the penetration of hydrogen in the material, in order to detect hidden dangers in time and take countermeasures.
In the chemical industry, although hydrogen infiltration is a hidden concern, if it is treated with scientific methods and rigorous treatment, it will be able to avoid danger, ensure the stability of chemical production, and promote the vigorous development of the industry.
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