| Flue gas desulfurization (FGD) using carbon materials is a new technique which do not cause secondary pollution and can reuse sulfur resource, so it have a bright prospect. But recently activated material for FGD is mainly granular activated carbon(GAC) whose sorption capacity for sulfur dioxide is limited, hydromechanical properties is poor and fall chip easily. There for research an economical, efficient activated carbon which has the good filling property become the key that will accelerate FGD using carbon materials improvement further.Spherical activated carbon(SAC) has fixed morphological character. When it is filled in the fixed bed, passage formed between the grains is regular. So when gas flow through these passage, the velocity is well-distributed and pressure of packing is low. The surface of SAC is smooth, hence, when it is used for FGD, it broke hardly and spoilage is small. Furfural residue is waste that is left after produce furfural. Its contains more 40% carbon, if furfural residue is used to prepare activated carbon, not only production cost will be reduced ,resources of wastes is realized, but also environment pollution caused by furfural residue storage in the open air will be resolved. Because of two points mentioned above, in thispaper , spherical raw material from furfural residue and carbonization have been prepared, and sodium carboxymethylcellulose(CMC) was used as adhesive. Then, this raw material was carbonated and activated by electric furnace and microwave irradiation separately. Based on these , two kind of new carbon-supported desulfurizers which can catalyzed reaction in which S02 is oxidated S03 at lower temperature have been prepared. At last, the behavior of SAC for FGD and its hydromechanic properties have been studied.In the study of preparation, firstly, the affect of carbonization temperature, carbonization time, activation temperature and activation time on the yield, I2 adsorption and desulphurization capability was inspected. The preparation parameter were, carbonization: 60minutes at 773K; activation: 40 minute at 1123K. The BET surface area, pore size distribution, structure of individual crystallites and surface oxygen functionalities has been studied by N-adsorption, XRD and XPS separately. Secondly, The affect of preparation parameter by microwaves on the characterization of SAC-F has been investigated and results show that if there is not other compound was append to the raw material, the adsorptive ability of SAC-F prepared by microwave is bad. But when K2C03 was put in before carbonization, the adsorptive ability was enhanced remarkably. The optimum inverse proportion is C: K2C03=1.5:l, rational microwave frequency is 640W, the time of microwave treatment is lOmin, and the velocity of C02 is 200ml/min. Finally, two kind of carbon-supported metal desulfurizes was prepared. One contain Cu0+V205 (SACcu+v), the other has MnO2 (SAC unw). These catalysts' constructions have been indicated by modern testing method. The results show that adding make BET and total pore volumes reduce, the change of surface oxygenic functional groups wassmall, but desulfurization increased remarkably.In the study of properties, firstly, the affect of airspeed and packing height on the desulfurization have been researched. Secondly, the capacity of desulfurization of SAC, SACcu+v, SAC Mno2 and GAC was compared, and the order from high to low is SACcutV > SAC iwb> SAC, > GAC. This different was analyzed through BET , pore size distribution, surface oxygenic functionalities. Finally, hydromechanic properties of SAC and GAC has been studied, the result show that the pressure of packing bed of SAC is smaller than GAC whose size is same with SAC, and pressure of packing will reduce ulteriorly with increase of SAC s size.
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