Features of membrane nitrogen generator
1. Perfect fluent design, optimal use effect; 2. Reasonable internal components, uniform airflow distribution, reducing the impact of high-speed airflow; 3. The unique protection measures of molecular sieve extend the service life of carbon molecular sieve; 4. Simple operation, stable operation, high degree of automation, and can be operated without anyone; 5. Automatic interlocking nitrogen exhaust device to ensure the quality of product nitrogen; 6. Optional nitrogen device flow, automatic purity adjustment system, remote monitoring system, etc.; Ruiyu main products: nitrogen generator, Guangdong nitrogen generator, nitrogen generator, nitrogen generator manufacturer, PSA nitrogen generator, nitrogen generator device, pressure swing adsorption nitrogen generator Membrane Nitrogen Generator
Application of steam activated carbon in organic waste gas
1. Condensation recovery method: The organic waste gas is directly introduced into the condenser through adsorption, absorption, dissolution and separation, and valuable organic matter can be recovered. This method is suitable for the working conditions of high organic waste gas concentration, low temperature, and small air volume, and requires attachment Refrigeration equipment, mainly used in the pharmaceutical and chemical industries, less used by printing companies 2. Absorption method: Generally, physical absorption is used, that is, the exhaust gas is introduced into the absorption liquid for purification. After the absorption liquid is saturated, it is heated, analyzed, and condensed for recovery; this method is suitable for large-scale, low-temperature, and low-concentration exhaust gas, but heating is required Analysis and recovery device, the equipment is large and the investment is relatively high. Generally, the activated carbon adsorption method is adopted: the exhaust gas is adsorbed by activated carbon. When the adsorption is saturated, the activated carbon is desorbed and regenerated. The exhaust gas is blown off and catalytically burned to convert it into harmless substances. The regenerated activated carbon is continued to be used. When the activated carbon is regenerated to a certain number of times, the adsorption capacity is significantly reduced, and the activated carbon needs to be regenerated or updated. Activated carbon is currently the most used method to treat organic waste gas. It has good adsorption performance for benzene waste gas, but has poor adsorption for hydrocarbon waste gas. The main disadvantage is that the operating cost is high and it is not suitable for the environment with high humidity. However, as far as the current market applications are concerned, the use of activated carbon adsorption is the most commonly used. Activated carbon is mostly used: activated carbon particles and activated carbon fibers. The price of activated carbon particles is relatively cheap, but the effect is lower. In comparison, the price of activated carbon fibers is relatively higher and the effect is better.
Advantages of steam activated carbon
Advantages of activated carbon for water purification 1. It can work continuously for 24 hours without shutting down and backwashing, and it has the characteristics of high efficiency. 2. There is no need for a high-lift and large-flow backwash pump, which means that the operating cost of the activated carbon filter is relatively low. 3. During operation, there are basically no rotating parts except the quartz sand filter material, so the failure rate is relatively low, and a large amount of maintenance costs can also be saved. 4. The activated carbon filter does not require a separate coagulation tank, clarification tank, etc., nor does it require backwash pumps, electric and pneumatic valves and other equipment. The amount of engineering is relatively small, and the one-time investment is relatively small. 5. Small head loss: You have a single filter material and the filter material is cleaned in time, so the head loss will be relatively small. 6. It can withstand a certain concentration of water quality for a long time, and can withstand the impact in a short time and keep the water quality unchanged. 7. The filtered water quality is relatively stable, and the filtering effect is relatively good. The filter material is cleaned in a timely manner, which can ensure high-quality and stable water output, and there is no periodic water quality fluctuation. 8. The unit operation mode adopted by the activated carbon filter is to increase or decrease the number of filters flexibly according to the changes in water volume, which is beneficial for modification and expansion. 9. The traditional three-stage reclaimed water treatment process can be integrated, which can save land and make the appearance more beautiful. Editor's summary: The function of activated carbon for water purification and the advantages of activated carbon for water purification have been introduced here, and I hope it will be helpful to everyone. If you want to know more related knowledge, you can follow Qijia.com information. We provide steam activated carbon products. If you are interested in steam activated carbon, please contact us for more information.
Introduction of Pressure Sensitive Adhesive,Psa Padding
203 pressure sensitive adhesive is mainly composed of natural rubber and terpene resin. English name Pressure-sensitive adhesive 203, 203 adhesive is a natural rubber pressure-sensitive adhesive with a wide range of applications, high bonding strength, and good aging resistance. It can be used in the production of pressure-sensitive adhesive tapes and pressure-sensitive trademarks, and can bond various plastic films, as well as metal and plastic films, and paper paste. Quality Standard Appearance light yellow transparent viscous liquid Adhesive strength (stainless steel-polyester film)/(N/2.5dn) Solid content/% 25±2 ≥6.8 ①The thickness of the axillary coating is 0.03～0.04mm. Construction process ① Use a brush or brush to dip a little glue and apply evenly on the material to be glued. Both materials need to be glued. ②Dry at room temperature for 10-15min, then it can be bonded. ③If the film is too thin, apply a second glue. Contains organic solvents and is flammable. At the operation site, pay attention to ventilation and prevent open flames. The storage period of this product at room temperature is 1 year. After the expiration date, no abnormality is found in the glue, and it can still be used. 15kg/barrel. We provide psa padding products. If you are interested in psa padding, please contact us for more information.
What is the carrier of the silica catalyst?
The main advantage is that the chemical properties are relatively stable. It is an acidic oxide and does not react with ordinary acids. It does not interact with halogens, hydrogen halides, sulfuric acid, nitric acid, and perchloric acid other than fluorine and hydrogen fluoride (except for hot concentrated phosphoric acid). If it reacts with the catalyst, it will cause the catalyst to be poisoned. A phenomenon in which the activity and selectivity of the catalyst are significantly reduced or lost due to the trace impurities contained in the reaction raw materials. The essence of the poisoning phenomenon is a certain chemical action of trace impurities and the active center of the catalyst to form inactive species. Secondly, silica has good wear resistance, stable chemical properties, and high melting point. For this reason, using it as the main mineral phase material as the catalyst carrier, its performance is stable. In addition, the treated silicon dioxide has a high specific surface area and strong adsorption, which can increase the catalytic efficiency of the catalyst! In general, the silica carrier has great advantages in terms of catalytic efficiency, catalytic activity, solidity of catalyst loading, service life, and price! Fumed silica (fumed white carbon black) is one of the extremely important high-tech ultrafine inorganic new materials. Because of its small particle size, it has a large specific surface area, strong surface adsorption, large surface energy, high chemical purity, and dispersion. Good performance, heat resistance, electrical resistance and other aspects have specific performance, with its superior stability, reinforcement, thickening and thixotropy, it is especially advantageous in the catalyst carrier. We provide silica catalyst products. If you are interested in silica catalyst, please contact us for more information.
The difference between non activated carbon and activated carbon
The difference between general charcoal and activated carbon: 1. With different processing technology, bamboo charcoal only goes through the carbonization stage, and activated carbon needs to go through activation, pickling and drying stages in addition to the carbonization process. 2. The microstructure is very different: the pore diameter of bamboo charcoal is larger than that of activated carbon. 3. The specific surface area is different. The specific surface area refers to the size of the surface area occupied by the unit mass. 4. There is a big difference in hardness. Bamboo charcoal has high density, high hardness, and is not easy to break. It is suitable for wear-resistant home textile products; the hardness of activated carbon of different materials is very different, the hardness of coconut shell activated carbon is high, and the activated carbon produced from bamboo has light specific gravity and softness. , It is fragile, so it is not suitable for products with high abrasion resistance requirements. 5. The production cost varies greatly. Bamboo charcoal requires only one carbonization process, while activated carbon also requires an activation process. The cost is much higher than bamboo charcoal, about 35 times that of bamboo charcoal. Therefore, the product price is 3-5 times that of bamboo charcoal. 6. The raw material and its consumption are different. The raw material consumption of activated carbon is generally 3-5 times higher than that of bamboo charcoal. For example, 6t (ton) of bamboo can make 1t of bamboo charcoal, but 3-5t of bamboo charcoal can process 1t of bamboo activated carbon. Of course, the raw material cost of coconut shell activated carbon will be higher, but the better the effect. 7. Different shapes of bamboo charcoal in different shapes, including tube charcoal, flake charcoal, crushed charcoal, granular charcoal, charcoal powder, etc., with a wide range of applications. and many more 8. The pores of bamboo charcoal with different adsorption objects are mainly macropores, while activated carbon is very different. Physically activated activated carbon is dominated by micropores, and chemically activated activated carbon is dominated by macropores. Different activation processes The activated carbon produced is quite different. Bamboo charcoal mainly adsorbs some macromolecular substances, including many microorganisms. Activated carbon has different pore structures and is used in different fields according to different adsorbed species. But for substances with small molecular diameters (such as formaldehyde, benzene, ammonia and other harmful gases), the adsorption of activated carbon is several times stronger than that of bamboo charcoal. Moreover, the adsorption of activated carbon is very specific, and different pore sizes are used to adsorb different substances.