Author: Sophie Liu

5A molecular sieve: Its pore size is about 5 angstroms, which can effectively adsorb sulfides such as hydrogen sulfide (H₂S). 5A molecular sieve can not only be used to remove hydrogen sulfide from liquefied petroleum gas, but also remove some other impurities such as carbon dioxide (CO₂) and a small amount of water at the same time.

Molecular sieve dehydration is a process that relies on the use of molecular sieves, which are materials with tiny, uniform pores that can adsorb molecules based on their size and polarity. Here’s how the process works and potential issues that could arise:

CNM 5A molecular sieve has the characteristics of high desulfurization efficiency, large adsorption capacity and regeneration. Through the rich pore structure of the molecular sieve, it can effectively adsorb sulfides and moisture in natural gas, and finally obtain natural gas that meets environmental and industrial quality requirements.

CNM 5A molecular sieve has high selective adsorption, fast adsorption speed, durability and no powdering, and efficient adsorption performance. Through pressure swing adsorption, gases and impurities such as carbon monoxide (CO), methane (CH₄) and nitrogen (N₂) can be removed to produce high-purity hydrogen. It can also adapt to hydrogen pressure swing adsorption devices of various sizes.

Due to its small pore size (about 3Å), 3A molecular sieve mainly adsorbs water molecules, but not larger molecules, so it is widely used in many applications that require precise dehumidification. The following are the main application areas of 3A molecular sieve:

The thermal stability and chemical stability of 4A molecular sieve are relatively high, and its unique selective adsorption characteristics can achieve higher precision drying performance than other adsorbents. In the dryer, when the compressed air mixed with moisture passes through the molecular sieve in the adsorption tower,

Lithium molecular sieve is an oxygen-generating molecular sieve of lithium X-type aluminosilicate crystals, which is used for air separation to produce oxygen and oxygen-enriched air. Compared with ordinary calcium-type and nano-type molecular sieves, it has better adsorption capacity and better separation efficiency. Suitable for small VPSA (vacuum pressure swing adsorption) devices.

The main element of carbon molecular sieve is elemental carbon, and its appearance is a black cylindrical solid. Because it contains a large number of micropores with a diameter of 4 ed, and the micropores have a strong instantaneous affinity for oxygen molecules, it can be used to separate oxygen and nitrogen in the air. Nitrogen is produced by pressure swing adsorption devices in industry.