Nangong University develops high-efficiency and stable adsorbent preparation technology

cracking the one-price copper oxidation bottleneck
reduce the emissions of sulfur oxides in automobile exhaust, can reduce the formation of acid rain, friendly environmentA price copper-based adsorbent in the fuel oil deep desulfurization and olefin/alkane separation performance is excellent, has a good prospect of industrial production, but it is easy to oxidize in the air, preparation, storage and use need to isolate the air, not only improve the cost of adsorbents, but also hinder the breadth of practical applicationRecently, Professor Sun Linbing of Nanjing University of Technology's Adsorption Separation Technology Institute solved the bottleneck of a price copper's oxidation in the air by regulating the microenvironment of adsorbents, so that it could be stored in the air steadily for 6 monthsimprove the antioxidant properties of a price copper through the decorative hydrophobic coating
the price of a price copper-based adsorbent is low, and the active position and adsorption can produce a special network cooperation between the active position and the adsorption, which is a kind of adsorption performance, with the future of industrial applications adsorbentHowever, its storage conditions are more stringent, must be isolated from the air, otherwise it is easy to interact with the oxygen in the air into copper dioxideThe research team analyzed the mechanism of copper oxidation in depth through many experiments, and tried to prevent oxidation by preventing oxygen from attacking a price copper site, but with little effect"Later, we found that a copper base could only oxidize at room temperature if oxygen and water were present at the same time,"Sun Linbing introduced that they have mastered the secret of a price copper oxidation, the unique way through the regulation of a price copper modified Y molecular sieve microenvironment, the surface properties of adsorbents from hydrophilic to ultra-hydrophobic, hindering the contact of water molecules with a price copper activity level, to achieve the existence of oxygen under the conditions of a price copper-based adsorbent stability"We blocked one of the two conditions necessary for copper oxidation, which means to put on a 'waterproof coat' for a copper base." Sun Linbing image explained, "ordinary adsorbent in only 2 weeks to completely lose the performance of sulfur absorption desulfurization, but added a 'waterproof clothing' of a price copper-based adsorbent in the air can be stable storage for 6 months, reducing storage costs, conducive to industrial production." "
, a single-price copper-based adsorbent shows excellent adsorption desulfurization properties on water-containing fuel oil, and the adsorption capacity is not reduced after recycling." Ordinary one-price copper-based adsorbent cycle after the adsorption capacity dropped to the original 3%, wearing a 'waterproof clothing' of a price copper-based adsorbent can be recycledLi Yuxia, a member of the research team, said, "Our one-price copper-based adsorbent scant not only stores it in the air for 6 months, but also recovers the adsorbent to its original sorbent capacity after recycling." "
using a price copper base for adsorption separation, with low price, easy to operate, efficient and stable and so onCompared with the use of one-price silver and other adsorbents for industrial separation, a price copper base price is low, adsorption capacity is strong, and compared with the catalytic hydrogenation desulfurization required for high temperature and high pressure harsh conditions, a price copper-based adsorption separation can be carried out at normal temperature"It's not going to lower the octane in gasoline." Sun Linbing explained, "High octane gasoline is more fully burned, good explosion resistance, the engine can use a higher compression ratio." "
a price copper-based adsorbent in gasoline, diesel and other fuels, can adsorption of aromatic sulphides, blocking the emissions of sulfur-containing exhaust, so as to achieve green-friendly efficacy A price copper-based adsorbent can also selectively adsorplate olefins in olefin/alkane separation, without adsorption of alkanes, providing high-quality raw materials for the production of olefinproduct products In addition, a single-price copper-based sorbent can also play a role in carbon monoxide purification separation