How To Distinguish between Original And Recycled Carbon Molecular Sieves?

Carbon Molecular Sieve, as the air separation material for nitrogen production in nitrogen generators, are now widely used in the nitrogen production industry. However, recycled carbon molecular sieve materials often appear on the market. The quality and performance of these recycled materials cannot be compared with those of original materials. Due to the lack of professional identification ability, users often cannot distinguish them. The differences between the two materials are described as follows for reference:

1. Observe the appearance: The primary carbon molecular sieve has a uniform length and thickness, a slight luster, a smooth surface, and no dust. However, the recycled material particles are relatively short, uneven in thickness, rough on the surface and dusty.

2. Weighing: Primary carbon molecular sieves are relatively light, while regenerated carbon molecular sieves are slightly heavier. However, the distinction between original and recycled materials cannot be solely determined by weight.

3. Testing adsorption capacity: The adsorption capacity of carbon molecular sieves is one of the important indicators for measuring their quality. Primary carbon molecular sieves have a strong adsorption capacity due to the large number of micropores and pores on their surfaces. However, the adsorption capacity of regenerated carbon molecular sieves will be somewhat reduced due to the influence of surface micropores and pores after treatment. Therefore, the adsorption capacity of carbon molecules can be tested through professional testing equipment.

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