What should be paid attention to when storing molecular sieves

For molecular sieve, many friends do not know much about it. In fact, it is artificially synthesized and has many advantages, such as the ability to purify waste gas. Therefore, it is now used in many fields. Many friends do not know some when storing and using molecular sieve. Matters needing attention, there may be some problems in this way. We can only play the excellent role of molecular sieve by correctly understanding the storage method. The following will give you a detailed description of what should be paid attention to in the storage of molecular sieve and the precautions in the actual operation of molecular sieve. .

What are the precautions for the storage of molecular sieves?

Molecular sieves are easily hygroscopic. It should not be directly exposed to the air during storage, and should be placed in a dry place. Molecular sieves that have been stored for a long time and have absorbed moisture should be regenerated before use.

Molecular sieves avoid oil and liquid water. Oil can block the pores of molecular sieves. Especially during regeneration, the oil may be carbonized and the pores may be blocked. For the gas containing oil, the oil and gas, oil and water should be separated first, and then the molecular sieve tower should be carried out. Due to the heat released by the molecular sieve when adsorbing water, a large amount of heat will be released when the liquid water directly contacts the molecular sieve. Hazards may occur, or the performance of molecular sieves may be destroyed.

When the molecular sieve tower working under pressure is switched for regeneration, the internal pressure of the tower should be lowered slowly. If the depressurization speed is too fast, the molecular sieve particles may be broken and pulverized.

What are the precautions for molecular sieve in actual operation?

      (1) If the molecular sieve program-controlled valve fails, contact the on-site personnel and instrument personnel to be present before opening the valve; during the valve opening period, it is necessary to open the manual operation. After the on-site personnel feedback that the valve has been opened, the internal operator checks that the signal is normal, and then switches the program to automatic download. step.

      (2) During the switching of each step of the molecular sieve, the internal operators should strengthen the monitoring, and deal with the abnormality in time.

      (3) During the heating period of the molecular sieve, the liquid level of the regenerator heater should be controlled at about 10W.

  5. If the internal leakage of the self-regulating valve is serious, and the heating of the molecular sieve is completed, contact the on-site personnel in time to close the condensate hand valve to ensure that the liquid level does not drop.

       Through the above introduction, we already know the various properties of molecular sieves and storage methods. When you store molecular sieves, you can refer to the above methods to operate, put it in a dry environment, and pay attention to regeneration. The problem, if the regeneration temperature is not well controlled, it may lead to the deactivation of the molecular sieve, so everyone must be careful. In addition, in the actual operation, you must strictly follow the prescribed requirements, and do not arbitrarily do certain operations, so as not to affect its performance.