High purity nitrogen air separation FAQ

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...

How to judge whether the molecular sieve purifier works normally according to its adsorption temperature

What safety problems should be paid attention to when contacting oxygen and nitrogen

Influencing factors of cooling effect of nitrogen water tower precooler

The design of the internal structure of the adsorber: the design of the internal structure of the adsorber includes the determination of the bed layer and various auxiliary structures, such as the design of the upper and lower filter, the guide valve, the pressing mechanism, the gas distribution device and so on. The adsorber can usually be divided into single bed and double bed, and the structure is shown in figure 3. Both the upper and lower vent of the two structures are equipped with filter and gas distributor. The single-layer bed structure is equipped with a screen hole plate and a cylinder compressing device on the molecular sieve adsorber. When the adsorber is working, the cylinder piston generates a lower thrust by differential pressure and compresses the molecular sieve through the screen hole plate, it avoids the phenomena that the molecular sieve is boiling and flowing and the filter screen is damaged due to the excessive airflow, thus prolonging the life of the molecula...