PSA nitrogen plant design basis

   Adsorption matrix for all types of adsorbents, such as: aluminum plastic, silicone, 3a zeolite molecular sieves activated carbon and molecular sieves.  Among PSA nitrogen means they use various types of molecular sieve adsorbents (zeolites, carbon molecular sieves), various types of molecular sieves have specific selective adsorption, such as nitrogen is often used 3A carbon molecular sieve oxygen, and adsorption H20, C02 multi-use 13X zeolites.  PSA Nitrogen Generator works: clean pressurized air (oxygen and nitrogen mixed gas) through some sort of carbon molecular sieve, most of the remaining traces of oxygen and water is a molecular sieve adsorption, adsorption of nitrogen is unable to be discharged This nitrogen adsorption stage.   While reducing the pressure to atmospheric or subatmospheric pressure, the adsorption capacity of the molecular sieve oxygen decreased oxygen which is resolved in a compressed state of the adsorbed water and the regeneration is parsed (oxygen) phase.  Molecular sieves can be parsed and nitrogen adsorption phase of the next cycle, the cycle is repeated to obtain a certain purity of nitrogen, while some of the purity of the oxygen enriched air. 

Hospital inspection identified three focus on molecular sieve oxygen

Health News (Reporter Wang Lemin) July 25, the State Food and Drug Administration held a national medical molecular sieve oxygen equipment special inspection group working conference in Beijing. The meeting identified the key elements of this inspection work. State Food and Drug Administration Medical Device Division Wangbao Ting said the focus of the inspection focused on three aspects: First, check the medical institutions for medical activated zeolite molecular sieve oxygen equipment have not registered a license, the second is to check the medical molecular sieve system maintenance of oxygen equipment, the use of compliance with relevant regulations and standards, is sampling and testing equipment produced three oxygen concentration is qualified. April this year, the State Food and Drug Administraactivated zeolite sieve oxygen equipment. After the meeting, six inspection teams to Beijing, Jiangsu, Zhejiang, Shandong and other 18 provinces (autonomous regions and municipalities) to carry out a 10-day inspection.

tion launched a medical institution medical molecular sieve oxygen equipment special inspection. Medical institutions around the self, food and drug regulatory departments of medical institutions were random. The previous phase of this inspection is intended to further promote special inspection work to further standardize and improve the safety level of protection of medical

Structure

Thus proteoglycan aggregates composed of coiled turns, forming a sieve-like microporous structure, called molecular sieves. Zeolite molecular sieve allowing only its micro-pores is less than the material molecular sieve separation through its pores large macromolecules, the bacteria has a barrier function. The matrix becomes the limiting diffusion of bacteria and other harmful substances defensive barrier. Hemolytic streptococcus and cancer cells can produce hyaluronidase, decomposition proteoglycan matrix structure damage, to be spread. The proteoglycan aggregates molecular sieve adsorbent further combined with a plurality of hydrophilic groups capable of binding to a large number of water molecules, forming extracellular "reservoirs."

zeolite molecular sieves

Zeolite adsorption has two characteristics: (1) the center of the polarity on the surface of a Lewis strong; (2) the zeolite cages or channels in small size, which makes the strong molecular sieve siliporite gravitational field. Therefore, the adsorption capacity of the adsorbate molecules is much more than other types of adsorbent. Even adsorbate partial pressure (or concentration) is low, the adsorption capacity is still considerable. Zeolite adsorption separation not only the size and shape of 4a zeolite powder the adsorbate molecules, but also on its polarity, and therefore, the zeolite molecular sieves can also be used to separate substances of similar size.

zeolite molecular sieves the gap with foreign countries is growing

zeolite molecular sieves the gap with foreign countries is growing. 1970s was the heyday of PSA oxygen air separation technology development, there are more than a dozen units have carried out  synthetic zeolite powder supplier experimental research PSA oxygen technology, the establishment of a number of sets of industrial test equipment. During this period the development of PSA oxygen equipment common in the following areas:
they use a higher than atmospheric grace molecular sieves  pressure adsorption, desorption atmospheric processes, adsorption tower has two to four;
 before the air enters the adsorber, after dehydration pretreatment;
Poor (3) equipment reliability, not continuous and stable operation, resulting in most of the equipment scrapped;
 technical, economic indicators lag behind.
1980s, the original PSA oxygen equipment in research and development unit of development projects have been suspended, the development of technology, PSA oxygen into the trough again.

activated molecular sieves air filter contaminated air through

activated molecular sieves Micro fan inside the machine (also known as ventilator) indoor air circulation, molecular sieves 13x air filter contaminated air through the machine inside (two filters) will remove a variety of contaminants or adsorption, and then after installed in the outlet of the negative ion generator 4a zeolite molecular sieves (when working in high-pressure ion generator to generate negative high voltage direct current), will continue to air ionization, a large amount of negative ions, being sent out micro fans, form negative ions flow, to clean and purify the air of purpose, thus provide people with a similar nature in the fresh air "micro climate."

The principle is the use of industrial oxygen air separation technology

The principle is the use of industrial oxygen air separation technology,first, a high density compressed air to the condensation point of the air in the re-use of the components is different so air separate unit molecular sieve  that in the gas and liquid from a certain temperature,activated molecular sieves and further distillation derived; home oxygen works: the use of molecular sieve physical adsorption and desorption techniques. molecular sieves 4a  Filling the molecular sieve oxygen generator can be adsorbed nitrogen pressurized air, the remaining oxygen is not absorbed is collected, after purification was turned into high-purity oxygen.