Large air separation FAQ

Suggestion on using air heat to pretreat regeneration ga

What is the principle of overflow bucket of sieve tray column in air separation plant? What's the effect?

Types of molecular sieves

What are the characteristics of structured packed column and sieve tray column in air separation plant?

Switching time of molecular sieve purification

What is the "three Simultaneities" of safety production

What does "three level safety education" mean

What's the reason for using two-stage distillation column in air separation column?

After a long-term operation of the air separation plant, the components in the cryogenic equipment and pipelines in the distillation system will be blocked due to ice or mechanical powder, which will increase the resistance of the fractionator. When the air separation plant has been in normal operation for about 2 years, the fractionator system should be heated and thawed to remove these deposits. When the molecular sieve adsorber and the main heat exchanger have water inflow or other faults, it is also necessary to stop and heat up. In general, the following methods will be used for heating and thawing.

After a long-term operation of the air separation plant, the components in the low-temperature equipment and pipelines of the distillation system will be blocked due to the internal precipitation of icing or mechanical powder, which will increase the resistance of the fractionating column. Therefore, after the normal operation of the air separation plant for about 2 years, the fractionating column system should be heated and thawed to remove these sediments. When the molecular sieve adsorber and the main heat exchanger have water or other faults, they must also be stopped for heating. The following describes several heating and thawing operation methods: