Double-superior carbon molecular sieve nitrogen generator filling guide
SY CHEMICAL traveled to Tianjin to provide installation guidance for carbon molecular sieves (CMS) for a pharmaceutical company, a partner of theirs. The main reason was that the air compressor in the client’s nitrogen generator had been flooded, causing it to rust and malfunction.
Filling process:
Before refueling, the SY CHEMICAL team first ensured that personal protective equipment (PPE) was in place, including protective gloves and masks.
Then, they began pretreatment: removing carbon molecular sieve particles from the unit, polishing rusted parts of the air compressor, and then laying two layers of 60-mesh stainless steel wire mesh. This measure aimed to effectively prevent further rusting and provide an additional protective layer.
Next, a 5-cm thick layer of activated alumina desiccant was laid to prevent the carbon molecular sieve from failing due to moisture.
Then came the carbon molecular sieve filling stage. The SY CHEMICAL team carefully and slowly poured the CMS into the adsorption tower of the nitrogen generator, emphasizing the uniformity of the filling process, especially ensuring a tight, gap-free seal at the tower opening to avoid localized accumulation or excessive gaps that could affect the tower’s lifespan.
Simultaneously, they vibrated the adsorption tower using a vibrator to ensure a tight packing, thereby optimizing adsorption efficiency.
After loading the carbon molecular sieve, the team covered it with a 10-centimeter-thick palm fiber mat. The palm fiber mat, with its excellent elasticity, not only acts as a cushion but also effectively prevents the adsorbent from settling or crumbling during nitrogen generator operation, ensuring stable equipment operation.
Finally, to guarantee equipment performance, the team rigorously checked the sealing of all interfaces, eliminating the risk of leakage, thus successfully completing the loading process.
SY CHEMICAL carbon molecular sieves offer high nitrogen production capacity, high nitrogen recovery rate, and long service life. They are suitable for various types of pressure swing adsorption (PSA) nitrogen generators and are widely used in industries such as petrochemicals, metal heat treatment, electronics manufacturing, and food preservation.
Working Principle:
The working principle of carbon molecular sieve adsorbents is to utilize the adsorption properties of carbon molecular sieves to separate oxygen and nitrogen, thereby obtaining nitrogen as the product. When carbon molecular sieves adsorb impurity gases, the pore size only acts as a channel; adsorbed molecules are transported into the micropores. This allows molecules smaller than the pore size to diffuse rapidly, while restricting the entry of larger diameter molecules. The micropores have a strong instantaneous affinity for oxygen molecules, therefore they can be used to separate oxygen and nitrogen from the air.