Safety of cryogenic air separation equipment

Air separation unit not only has the distillation and separation process of air under the condition of deep cooling, but also the process of keeping the air separation unit in the deep cold state and making the cryogenic liquid products. Therefore, in addition to distillation process, air separation unit has a very important refrigeration process.   Unlike the general refrigeration process of heat pump, the refrigeration prin...

What are the characteristics of the air separation equipment in the molecular sieve purification process during start-up? What should be noted during operation?