Molecular sieve issue
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The molecular sieve in our factory has suffered breakdown due to high temperatures. I specialize in instrumentation, but I don’t understand why the molecular sieve breaks down as a result of temperature – could the process engineers explain this?
Could the original poster please explain further what is meant by \"breakdown caused by high temperature\"? Thank you
Reply to 2# Kuju Kyōko: It’s the adsorber that gets broken down. What are the hazards of this breakdown, and what are the preventive measures?
The adsorber has been broken down :funk:
If the answer is “the molecular sieve has been punctured,” that means the adsorber has been damaged. Hahaha, we also have molecular sieves; I’m not experienced enough to understand this. What we usually mean by “puncture” is when a pipe or device gets perforated, resulting in leakage. I’m not sure about the original poster’s situation...
When he said the adsorber was punctured, he probably meant that the filler of the molecular sieve adsorber was carried away by the compressed gas and mixed in with it.
This condition should be called jet screening, which is caused by the pulverization of molecular sieves
Instrument air? Does breakdown mean that the molecular sieve loses its functionality?
I was ignorant before; I had never heard of temperature causing molecular sieves to fail. Today, I learned something new. Excessively high temperatures can cause molecular sieves to become deactivated, but this generally occurs during the processing of molecular sieves. I have never heard of any issues arising from excessively high temperatures during the use of molecular sieves. This is because the electric heating devices equipped in ordinary adsorption units are not capable of deactivating the molecular sieve to such an extent. Generally
In summary, the poster explained that the high temperature of the gas led to an excessive amount of saturated water being carried in with the process gas, which in turn caused the molecular sieve to become ineffective. That’s the only way I can understand it.
If it is a molecular sieve washed with liquid nitrogen, then the incoming gas comes from low-temperature methanol washing, so there can be no water!