球形活性炭及其应用

Activated Carbon Spheres and Their Applications

球形活性炭外表为均匀、光滑的球形,在固定床使用时填充密度均匀,对气体或液体的流体阻力小,所以近年来作为口服吸附剂以及血液灌流器中的吸附剂得到了广泛的应用。与活性炭纤维、粒状活性炭相比,球形活性炭的研究与报道较少。对现有几种球形活性炭的特点、应用现状以及今后的发展方向进行了综述。

Activated carbon spheres (ACSs) have found many applications in fields such as oral adsorbent and hemoperfusion.Their most important advantage is that they exert little resistance to the diffusion of liquid and gas when used in fixed-bed reactor due to their uniformly spherical shape and homogeneously packed density.ACSs receive less attention as compared with activated carbon fiber and activated carbon granule.The preparation,properties and applications of the currently available ACSs,as well as their future development trend are reviewed in this paper.