Characteristics of Activated Carbon Fibers

1) large adsorption capacity

Activated carbon fiber on the organic gases and malodorous substances (such as n-butyl mercaptan, etc.) than the granular activated carbon adsorption (GAC) several times to ten times. On the inorganic gas also has a good adsorption capacity. The adsorption capacity of inorganic, dye, organic and precious metals in aqueous solution is 5 - 6 times higher than that of GAC. Microorganisms and bacteria also have a good adsorption capacity (such as the adsorption rate of E. coli up to 94 - 99%). The adsorptive capacity of the low-concentration adsorbate is particularly excellent. Such as the adsorbate concentration in the several ppm level can still maintain a good adsorption capacity, and GAC and other adsorbent materials are often in the concentration of several tens of ppm concentration of good adsorption capacity.

2) adsorption speed

For the adsorption of gaseous pollutants from the gas phase adsorption rate is very fast, the adsorption of liquid can quickly reach the adsorption equilibrium, the adsorption rate higher than the GAC several times to several hundred times.

3) easy regeneration, desorption speed

In the multiple adsorption and desorption process, still able to maintain the original adsorption performance. Such as with 120-150 ℃ steam or hot air regeneration treatment ACF 10-30 minutes to achieve complete desorption of common VOCs.

4) Good heat resistance

In the inert gas can be high temperature above 1000 ℃, the ignition point in the air up to 500 ℃ or more.

5) acid, alkali, has good electrical conductivity and chemical stability.

6) less ash.

7) good formability, easy processing into felt, silk, cloth, paper and other forms.

Introduction of Activated Carbon Fibers

(AC) and granular activated carbon (GAC), the last century, the United States, Japan, Russia and other countries have developed a third form of activated carbon called activated carbon fiber (AC) and granular activated carbon (GAC), the traditional form of activated carbon is divided into activated carbon (AC) ActivatedCarbon Fibers, / ACF). Domestic in the late seventies early eighties, also developed activated carbon fiber. Because activated carbon fibers have microporous surfaces and can be secondary processed into different forms of felt and cloth-like materials, they have a faster adsorption and desorption rate and a more convenient operation compared to conventional granular carbon Maintenance and other advantages

Activated carbon fiber (hereinafter referred to as ACF) the birth of the entire environmental protection industry is a revolution. ACF is based on viscose-based fiber as raw material, after high-temperature carbonization, activation made of fibrous new adsorption material, and the community recognized better adsorption material - granular activated carbon compared to ACF has the following significant features:

(A), large specific surface area, effective adsorption capacity. Since the surface area of the fibers of the same weight is nearly a hundred times larger than that of the particles, the weight of the activated carbon fibers to be filled is very small. However, the adsorption efficiency is very high, depending on the organic gas content and other physical properties of the treated exhaust gas. % To 98%, and the multi-stage adsorption process can reach 99.99%, which is much higher than the maximum adsorption rate of 88%, and the volume and total weight are also very small.

(B), adsorption desorption stroke is short, fast; desorption ﹑ renewable energy consumption is low. ACF adsorbs organic gas several times to several tens times larger than granular activated carbon (GAC), and also has good adsorption capacity for inorganic gas, and can maintain high adsorption desorption speed and long service life. If the steam heating 6-10 minutes, you can completely desorption, heat resistance, high temperature in inert gas above 1000 ℃, in the air ignition point of 500 ℃ or more.

(3) Adsorption capacity of the adsorbate at low concentration is particularly excellent, and adsorption capacity of the adsorbate of ppm level is still very high

(D), variable shape, easy to use; strength, and will not cause secondary pollution.