First of all, it is necessary to ensure that the gas pressure and flow rate required for heating the molecular sieve reach the level required by the process design. This is the basis of the heating regeneration process can be carried out smoothly.
Specific judgement criteria are as follows:
1, cold blowing peak temperature: usually, the cold blowing peak temperature needs to reach a certain standard (such as 80 ~ 120 ℃ or more, the specific value depends on the type of molecular sieve and operating conditions), in order to consider the regeneration is complete. This standard can be determined according to the actual operating experience and process design requirements.
2, regeneration gas flow and time: in the heating process, it is necessary to ensure that the regeneration gas flow and time meet the process requirements to ensure that the molecular sieve can be fully desorbed and regenerated.
3, molecular sieve performance in the work cycle: in addition to direct observation of the peak temperature of cold blowing, you can also indirectly determine whether its regeneration is complete by observing the performance of the molecular sieve in the work cycle. For example, observe whether the content of carbon dioxide and moisture in the working cycle is stable, and whether the temperature of air out of the molecular sieve is normal.
To determine whether the heating regeneration of molecular sieve is complete or not, it is necessary to consider a number of factors, including the heating conditions, regeneration process monitoring and specific judgement criteria. Through scientific methods and strict monitoring means, it can ensure that the regeneration effect of molecular sieve reaches the best state.
