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光氧催化技术有哪些用途?

来源:http://www.spormac.net/   发布时间:2018-09-15 10:42:32
光氧净化设备主要用作于食品、医药、化工、污水、垃圾、塑胶、喷涂、造纸、轮胎等生产环节挥发或渗漏出有害废气的净化及臭味的消除。
Photo-oxygen purification equipment is mainly used for food, medicine, chemical industry, sewage, garbage, plastic, spraying, papermaking, tires and other production links of volatilization or leakage of harmful waste gas purification and odor elimination.
光氧催化技术废气处理简要原理
Brief introduction of waste gas treatment by photo catalytic technology
应用于工业废气治理中的紫外线波长为154nm-254nm,波长越短能量越大。在这个波长区域中,由于154nm-185nm的波长相对比较短所以“杀伤”的空间范围也较小。而185nm-254nm尽管波长较长但是杀伤空间范围相对较大。
The UV wavelength used in industrial waste gas treatment is 154nm-254nm, the shorter the wavelength, the greater the energy. In this wavelength region, the "killing" space is also small because the wavelength between 154 nm and 185 nm is relatively short. Although 185nm-254nm has a longer wavelength, the killing range is relatively large.
光氧催化设备
废气的光解氧化机理包括两个过程:
The mechanism of photolysis and oxidation of exhaust gas includes two processes:
1.在产生高能离子群体的过程中,一定数量的有害气体分子受高能作用,本身分解成单质或转化为无害物质。
1. In the process of producing high-energy ion colony, a certain number of harmful gas molecules are decomposed into simple substances or converted into harmless substances by high-energy action.
2.含有大量高能粒子和高活性的自由基的离子群体,与大分子气体(如苯、甲苯等)作用,打开了其分子内部的化学键,转化为无害的小分子物质。新生态的氧离子具有很强的氧化性,它能有效的氧化分解不受负离子作用控制的有机物。和废气反应后多余的氧离子(正),能与氧离子(负)很快结合成中性氧,因而不会更多地对设备及环境造成不利影响。
2. Ionic groups containing a large number of high-energy particles and high-activity free radicals interact with macromolecular gases (such as benzene, toluene, etc.) to open the chemical bonds in their molecules and convert them into harmless small molecular substances. The newly formed oxygen ions have strong oxidizing ability, which can effectively oxidize and decompose organic compounds which are not controlled by negative ions. Redundant oxygen ions (positive) after reacting with exhaust gases can quickly combine with oxygen ions (negative) to form neutral oxygen, thus causing no more adverse effects on equipment and the environment.
1.恶臭物质能否被裂解,取决于其化学键键能是否比所提供的UV 光子的能量要低。
1. Whether the odor can be broken down depends on whether the bond energy of the odor is lower than that of the UV photon.
2.裂解时间是否足够1S,氧化反应的时间是否达到5-8S;
2. is the cracking time enough 1S, and the time of oxidation is 5-8S.
3.提供的 UV  光子总功率不够或者含氧量不足,会因为裂解或氧化不完全而生成一些中间副产物,从而影响净化效率。对于高浓度大分子的有机恶臭物质体现得较为明显。
3. If the total power of UV photons is insufficient or the oxygen content is insufficient, some intermediate by-products will be produced because of the incomplete pyrolysis or oxidation, thus affecting the purification efficiency. The organic odorous substances of high concentration of macromolecules are more obvious.
4.UV 光解净化的长期稳定、高效,需要反应温度<60℃,粉尘量<100mg/m 3 ,相对湿度<97%。
4. UV photolysis purification is stable and efficient for a long time. The reaction temperature is less than 60 ~C, the dust content is less than 100mg/m 3, and the relative humidity is less than 97%.
5.废气物质中若某种特殊化学元素的含有量过高 (如 Cl、 F 等) ,也会导致强化剂臭氧的生成量大大降低,最终影响总体的净化效果。
5. If the content of some special chemical elements in the exhaust gas is too high (such as Cl, F, etc.), it will also lead to the production of intensifier ozone greatly reduced, and ultimately affect the overall purification effect.
应用范围
Application scope
硫化氢:纸浆、炼油、炼焦、石化、煤气、粪便处理、二硫化碳的生产或加工
Hydrogen sulfide: Pulp, oil refining, coking, petrochemical, gas, fecal treatment, carbon disulfide production or processing
硫醇类:纸浆、炼油、煤气、制药、农药、合成树酯、合成纤维、橡胶
Mercaptan: pulp, oil refining, gas, pharmaceutical, pesticide, synthetic resin, synthetic fiber, rubber
硫醚类:纸浆、炼油、农药、垃圾处理、生活污水下水道
Thioether: pulp, oil refining, pesticide, garbage disposal, domestic sewage sewer
氨:氮肥、硝酸、炼焦、粪便处理、肉类加工
Ammonia: nitrogenous fertilizer, nitric acid, coking, excrement disposal, meat processing
胺类:水产加工,畜产加工、皮革、骨胶
Amines: aquatic processing, livestock processing, leather, bone glue
吲哚类:粪便处理、生活污水处理、炼焦、肉类腐烂、屠宰牲畜
Indole: manure disposal, domestic sewage treatment, coking, meat rotting, slaughtering livestock
硝基:燃料、炸药
Nitro: fuel and explosives
烃类:炼油、炼焦、石油化工、电石、化肥、内燃机排气、油漆、溶剂、油墨印刷
Hydrocarbons: Refining, Coking, Petrochemical, Calcium Carbide, Fertilizer, Internal Combustion Engine Exhaust, Paint, Solvent, Ink Printing
醛类:炼油、石油化工、医药、内燃机排气、垃圾处理、铸造
Aldehydes: refining, petrochemical, pharmaceutical, internal combustion engine exhaust, garbage disposal, casting
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