Molecular sieve manufacturer teaches you how to store molecular sieves
Molecular sieves (also known as synthetic zeolites) are microporous aluminosilicate crystals, which are mainly used in gas purification, petrochemical, refrigeration, automobile, architectural glass, medicine, paint coating, packaging and other fields. Molecular sieve has a large specific surface area of 300-1000m2 /g, and the internal crystal plane is highly polarized, it is an efficient adsorbent and a solid acid. The surface has a high acid concentration and acid strength, which produces positive carbon. Due to the properties of molecular sieves, storage has always been a concern for manufacturers. So what should be paid attention to when storing? molecular sieve manufacturer
answers for you!
1. Molecular sieve has strong hygroscopicity. When storing, it should not be directly exposed to the air and should be placed in a dry place. Molecular sieves with long-term storage and hygroscopicity should be regenerated before use.
2. Molecular sieves avoid oil and liquid water. Oil will block the pores of the molecular sieve, especially in the regeneration process, it may carbonize the oil and cause the pores to be blocked. Before the molecular sieve tower, oil and gas, oil and water should be separated. Because the molecular sieve will release heat when it absorbs water, liquid water will be released when it directly contacts the molecular sieve. Excessive heat can be dangerous or damage the performance of molecular sieves.
3. When switching the molecular sieve under pressure operation, the pressure in the tower should be slowly reduced. For example, if the decompression speed is too fast, the molecular sieve particles may be broken and pulverized. The higher the regeneration temperature, the safer the regeneration, but the greater the energy consumption for regeneration, which affects the life of the molecular sieve. Therefore, the regeneration temperature is preferably 200-350°C. The regeneration temperature generally does not exceed 600 ℃, otherwise the molecular sieve may lose its activity.