Application of the activated carbon prepared with anthracite produced from Taixi Coal Mine

Analysis of the property of Taixi anthracite is made from the physiochemical, molecular structure and pore structure aspects.As viewed from the physicchemical property of Taixi anthracite, it belongs to Rujigou group, Yanan series of Lower Jurassic period.It is low in ash content which can be lowered to less than 3% through cleaning.The ash is mainly composed of metal oxides like Fe₂O₃, CaO, AI₂O₃ and MgO which can facilitate coal activation process in later stage because of their ability to promote activation reaction.The molecular structure is predominantly made up by relatively large condensed aromatic nucleus (number of rings > 10) with few side chains and various heteroatomic functional groups.There exist a large number of bridgings between structural units.The micromoleculars assume an ordered structure and arrangement, exhibiting a relatively high chemical reaction activity.The pore structure of the coal is in good development and composed mainly of ordered micropore systems.The characteristics of the Taixi coal as described above well demonstrate that it is a quality material for preparing charcoal, particularly gas-adsorbent activated carbon.Its applications as gas absorber, liquid absorber and catalyst carrier are also introduced.Finally, the author points out the direction of the future research work and the way to expand the scope of application of Taixi charcoal.