High purity nitrogen air separation FAQ

Power unit for compressor of air separation plant

Why do gas nitrogen and liquid nitrogen coexist at the top of the distillation tower of an air separation plant

Cavitation of centrifugal pump of air separation plant

The main heat exchanger is the key equipment to ensure the performance of the air separation plant. Its functions in the air separation plant of the molecular sieve pre-filtration process are as follows: recover the cooling capacity of the reflux gas, ensure that the heat exchange temperature difference is within the design range; provide sufficient expansion gas in front of the expander to make up for the cooling loss of the air separation plant; provide raw air for the lower tower under the design conditions; and the working medium is in the main heat exchanger The resistance value in meets the process requirements.

What are the types of distillation columns for producing pure oxygen and pure nitrogen products

What factors are related to the cooling capacity of the expander

What are the driving forms and characteristics of the compressor of the air separation plant

Why can gas nitrogen be used to cool liquid nitrogen in liquid nitrogen subcooler of air separation plant

Reasons for liquid air level and liquid nitrogen level rising during temporary shutdown

What safety problems should be paid attention to when contacting nitrogen

What safety precautions should be paid attention to when overhauling the nitrogen water precooling system

The brief introduction of the air filter and air compressor in this process is the same as that of the chilled nitrogen production process. 1. Cold dryer: it is an air separation equipment used to reduce the temperature of compressed air before entering the air drying purifier to extract oil and water. It usually adopts post cooler with the structure of column pipe type, casing type, cooling sheet type and so on. 2. Oil-water separator: its function is to separate the oil and moisture contained in the compressed air and make the compressed air get Primary purification. 3. Air drying purifier: Compressed air still contains certain moisture after passing through the post cooler, and its content depends on the temperature of the air. The drying process of compressed air generally adopts molecular sieve absorption method and freeze drying method. 4. Pressure conversion absorption nitrogen generation device: the adsorbents used are usually 5A Molecular sieve or carbon molecular sieve, an...