According to different shapes, activated carbon can be divided into powder, granular, spherical and fibrous, among which activated carbon fiber (ACF) is the third generation of new adsorption material after powder activated carbon (PAC) and granular activated carbon (GAC). Activated carbon fiber is a porous carbon material prepared by carbonization and activation of organic fibers (such as phenolic fibers, polyacrylonitrile-based fibers, pitch-based fibers, polyvinyl alcohol-based fibers, etc.) 

Full of micropores. Due to its structural characteristics, the pore size of activated carbon fibers can reach nano-scale, which has the advantages of large specific surface area, small and uniform pore size, fast adsorption speed, and strong adsorption capacity. Its organic gas adsorption capacity is several times that of granular activated carbon. With its good adsorption properties, activated carbon fibers are widely used in waste gas treatment, water purification, food, aerospace, personal protective equipment, catalyst carriers, functional electrode materials and other fields. 

According to the "2022-2027 China Activated Carbon Fiber Industry Market In-depth Market Research and Development Prospect Forecast Report" released by Xinsijie Industry Research Center, from 2020 to 2026, the global activated carbon fiber market value will maintain a compound annual growth rate of 5.0%. The growth rate is expected to reach 3.8 billion yuan in 2026. Globally, the activated carbon fiber market is mainly concentrated in Europe, Asia-Pacific and North America, and the demand for activated carbon fiber in the Asia-Pacific region is growing rapidly. 

 The activated carbon fiber industry started in the 1970s. With the advancement of related technologies, the types of activated carbon fiber products are gradually enriched. 2nm), mesoporous (pore size 2-50nm) and macroporous (pore size>50nm). As a typical fibrous solid adsorption material, activated carbon fiber has various forms such as fiber mat, fiber cloth, fiber paper, fiber tow, fiber block, etc., which can meet different use requirements. 

 In terms of production process, the preparation process of activated carbon fiber mainly includes three stages: pretreatment, carbonization and activation. The activation process can be divided into physical activation method and chemical activation method. 

 According to industry analysts from Xinsijie, activated carbon fiber is the third-generation new type of adsorption material. Compared with powder activated carbon and granular activated carbon, activated carbon fiber has advantages in adsorption efficiency, pore size, specific surface area, etc. There are many types of activated carbon fibers and a wide range of application fields. With the upgrade of market demand, the development of activated carbon fiber industry will continue to upgrade in the direction of diversification, high-end and high efficiency, and the future market development space is broad. 

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