活性炭纤维吸附简介
传统的活性炭是一种经过活化处理的多孔炭，为粉末状或颗粒状，而活性碳纤维则为纤维状，纤维上布满微孔，其对有机气体吸附能力比颗粒活性炭在空气中高几倍至几十倍，在水溶液中高5~6倍，吸附速率快100~1000倍！没有确切数值，这与活性碳纤维的种类、制作工艺等有关。它是继活性炭之后新一代的吸附材料，它的使用只是近20多年的事，世界上只有少数国家能够生产。它的制品可以是丝、纸、毡、布等形式，活性碳纤维的市场价格在40万/吨左右，是活性炭的十几倍到几十倍（煤质活性炭价格在1万/吨左右，椰壳活性炭价格在2万/吨左右）。但因其重量极轻，其制品成本只是略有增高而已。在工业上利用它的超强吸附能力去回收有机溶剂，净化空气，净化用水。
ACF（碳纤维）是继广泛使用的粉末活性炭、颗粒活性炭之后的第三代新型吸附材料，它是由纤维为原料制成，具有比表面积大、孔径适中、分布均匀、吸附速度快、杂质少等优点；被广泛运用于水净化、空气净化、航空、军事、核工业、食品等行业；活性炭纤维毡用于有机溶剂的回收，对于从气相分离回收有机溶剂，如对苯类、酮类、酯类、石油类的废气均能从气相吸附回收。用活性炭纤维作溶剂回收材料吸附脱附速度快、处理量大，回收溶剂质量高，回收率可达90%以上。能够吸附的有机物有：烃类（苯、甲苯、二甲苯、三甲苯、正己烷、环己烷 等） ，卤代烃（氯甲烷、二氯甲烷、三氯甲烷、三氯乙烯、三氯乙烷、溴甲烷、 四氯化等），醛酮类（丙酮、环己酮、甲醛、乙醛、糠醛等），酯类（醋酸乙酯、醋酸丁酯等），醚类（甲醚、乙醚、甲乙醚等） ，醇类（甲醇、乙醇、异丙醇、丁醇等），聚合用单体（氯乙烯等）
用于空气净化，可有效去除空气中各种有害恶臭物质，尤其是致癌物质、芳香族类的化合物（如苯类，醛类）可使空气洁净清新。
The traditional activated carbon is a kind of after activation treatment of porous carbon, for powder or granular, and activated carbon fiber is a fibrous, be full of microporous fiber, its adsorption ability of organic gas than granular activated carbon in the air high several times or more, in aqueous solution with high 5 ~ 6 times, quick absorption rates, 100 ~ 1000 times! Don't have an exact numerical value, this and the types of activated carbon fibers, production process and so on. It is a new generation after activated carbon adsorption material, its use is only in recent 20 years, only a few countries in the world capable of producing. Its products can be silk, paper and blanket, cloth and other forms, the market price of the activated carbon fiber in 400000 / tons, is more than a dozen times to dozens times of active carbon, coal activated carbon prices in 10000 / tons, coconut shell activated carbon price at around 20000 / ton). But because of its light weight, its products cost just slightly higher. In industry with its strong adsorption ability to recycling organic solvent, purify air, purify the water.
ACF (carbon fiber) is the use of powder activated carbon, granular activated carbon after the third generation of new adsorption material, it is made from fiber as raw materials, has a large specific surface area, pore size is moderate, uniform distribution, adsorption speed, less impurity, etc; Is widely used in water purification, air purification, aviation, military, nuclear industry, food and other industries; Activated carbon fiber felt used for organic solvent recovery, the recovery of organic solvent separation from gas phase, such as benzene, ketones, esters, petroleum gas can from the gas phase adsorption recycling. By using activated carbon fiber for solvent recovery material adsorption stripping speed, large capacity, recovered solvents are of good quality, the recovery rate can reach more than 90%. To adsorption of organic compounds are: hydrocarbons (benzene, toluene, xylene, three toluene, n-hexane, cyclohexane, etc.), halogenated hydrocarbon (methyl chloride, methylene chloride, chloroform, trichloroethylene, trichloroethane, methyl bromide, tetrachloride, etc.), aldehyde ketone, acetone, cyclohexanone, formaldehyde, acetaldehyde, furfural, etc.), esters (ethyl acetate, butyl acetate, etc.), ethers (methyl ether, ethyl ether, methyl ether, etc.), alcohols (methanol, ethanol, isopropanol, butyl alcohol, etc.), polymerization with monomer (vinyl chloride)
Used for air purification, which can effectively remove the stench of various harmful substances in the air, especially the carcinogen, species of aromatic compounds (such as benzene, formaldehyde) can make the air clean and fresh. |
