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研究了O_2和H_2O对沥青基球状活性炭（PSAC）吸附SO_2能力的影响,结果表明,O_2和SO_2占据不同的活性中心,而H_2O和SO_2占据同一类活性中心,且SO_2与活性中心的结合能力比H_2O强得多,O_2或H_2O均能提高PSAC对SO_2的吸附能力,SO_2吸附量的增加来源于SO_2的化学吸附量。
The effects of O_2 and H_2O on the adsorption of SO_2 on pitch-based spherical activated carbon (PSAC) were investigated. The results show that O_2 and SO_2 occupy different active sites, while H_2O and SO_2 occupy the same kind of active sites, and the binding capacities of SO_2 and active sites H 2 O is much stronger and both O 2 and H 2 O can increase the adsorption capacity of PSAC to SO 2. The increase of SO 2 adsorption is derived from the chemical adsorption of SO 2.