Investigation of Pre-Purification unit in cryogenic air separation process

Cryogenic air separation processes are routinely used in medium to large-scale plants to produce nitrogen, oxygen, and argon as gases and/ or liquid products. Cryogenic air separation is the preferred technology for producing very high-purity oxygen and nitrogen. Various processes are needed in a cryogenic air separation plant, of which the fundamental ones are: air compression, air purification, heat exchanging, distillation and product. One of the most important parts of the ASU process is air purification. Because the exchangers can be frozen by Carbon and water. Factors that cause the inactivation of absorbents include sticking together, mechanical factors, absorption of unwanted substances, failure to desorption of absorbed substances, wetting of the cavity inlet opening due to incompatibility or maloperation and temperature factors. In this study, a pre-purifier unit in the cryogenic air separation process is investigated.